./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label33_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label33_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5f33d9d2272db58cdcc380fb222b6c55f6d85db9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:05:42,216 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:05:42,217 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:05:42,233 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:05:42,234 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:05:42,234 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:05:42,235 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:05:42,237 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:05:42,239 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:05:42,240 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:05:42,240 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:05:42,240 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:05:42,241 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:05:42,243 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:05:42,243 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:05:42,244 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:05:42,245 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:05:42,247 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:05:42,248 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:05:42,250 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:05:42,251 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:05:42,252 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:05:42,258 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:05:42,258 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:05:42,259 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:05:42,259 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:05:42,260 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:05:42,261 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:05:42,261 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:05:42,263 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:05:42,263 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:05:42,264 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:05:42,264 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:05:42,264 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:05:42,265 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:05:42,265 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:05:42,269 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:05:42,279 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:05:42,279 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:05:42,280 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:05:42,280 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:05:42,280 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:05:42,280 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:05:42,280 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:05:42,280 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:05:42,280 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:05:42,280 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:05:42,280 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:05:42,281 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:05:42,281 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:05:42,281 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:05:42,281 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:05:42,281 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:05:42,283 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:05:42,283 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:05:42,283 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:05:42,283 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:05:42,283 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:05:42,283 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:05:42,283 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:05:42,284 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:05:42,284 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:05:42,284 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:05:42,284 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:05:42,284 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:05:42,284 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:05:42,284 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:05:42,284 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:05:42,285 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:05:42,285 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:05:42,285 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:05:42,285 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:05:42,285 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:05:42,285 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:05:42,285 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan 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 -> Taipan 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 -> 5f33d9d2272db58cdcc380fb222b6c55f6d85db9 [2018-11-18 17:05:42,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:05:42,320 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:05:42,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:05:42,328 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:05:42,328 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:05:42,329 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label33_true-unreach-call_false-termination.c [2018-11-18 17:05:42,375 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/data/8096c5fe2/1719f41f5c36453cbf6ba2b753ddc3b5/FLAGd110c9f3e [2018-11-18 17:05:42,840 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:05:42,840 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/sv-benchmarks/c/eca-rers2012/Problem14_label33_true-unreach-call_false-termination.c [2018-11-18 17:05:42,851 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/data/8096c5fe2/1719f41f5c36453cbf6ba2b753ddc3b5/FLAGd110c9f3e [2018-11-18 17:05:43,168 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/data/8096c5fe2/1719f41f5c36453cbf6ba2b753ddc3b5 [2018-11-18 17:05:43,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:05:43,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:05:43,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:05:43,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:05:43,175 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:05:43,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:05:43" (1/1) ... [2018-11-18 17:05:43,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74466433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:43, skipping insertion in model container [2018-11-18 17:05:43,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:05:43" (1/1) ... [2018-11-18 17:05:43,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:05:43,255 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:05:43,567 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:05:43,571 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:05:43,706 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:05:43,726 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:05:43,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:43 WrapperNode [2018-11-18 17:05:43,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:05:43,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:05:43,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:05:43,728 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:05:43,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:43" (1/1) ... [2018-11-18 17:05:43,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:43" (1/1) ... [2018-11-18 17:05:43,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:05:43,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:05:43,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:05:43,848 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:05:43,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:43" (1/1) ... [2018-11-18 17:05:43,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:43" (1/1) ... [2018-11-18 17:05:43,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:43" (1/1) ... [2018-11-18 17:05:43,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:43" (1/1) ... [2018-11-18 17:05:43,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:43" (1/1) ... [2018-11-18 17:05:43,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:43" (1/1) ... [2018-11-18 17:05:43,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:43" (1/1) ... [2018-11-18 17:05:43,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:05:43,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:05:43,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:05:43,913 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:05:43,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/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 [2018-11-18 17:05:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 17:05:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:05:43,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:05:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 17:05:43,986 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 17:05:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:05:43,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:05:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:05:43,986 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:05:45,954 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:05:45,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:05:45 BoogieIcfgContainer [2018-11-18 17:05:45,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:05:45,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:05:45,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:05:45,959 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:05:45,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:05:43" (1/3) ... [2018-11-18 17:05:45,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c3af11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:05:45, skipping insertion in model container [2018-11-18 17:05:45,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:43" (2/3) ... [2018-11-18 17:05:45,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c3af11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:05:45, skipping insertion in model container [2018-11-18 17:05:45,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:05:45" (3/3) ... [2018-11-18 17:05:45,962 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label33_true-unreach-call_false-termination.c [2018-11-18 17:05:45,970 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:05:45,978 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:05:45,993 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:05:46,031 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:05:46,031 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:05:46,032 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:05:46,032 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:05:46,032 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:05:46,032 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:05:46,032 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:05:46,032 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:05:46,054 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-11-18 17:05:46,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 17:05:46,062 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:05:46,063 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] [2018-11-18 17:05:46,065 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:05:46,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:05:46,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1913036537, now seen corresponding path program 1 times [2018-11-18 17:05:46,072 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:05:46,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:05:46,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:05:46,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:05:46,114 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:05:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:05:46,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:05:46,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:05:46,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:05:46,439 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:05:46,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:05:46,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:05:46,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:05:46,463 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-11-18 17:05:47,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:05:47,507 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-11-18 17:05:47,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:05:47,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2018-11-18 17:05:47,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:05:47,523 INFO L225 Difference]: With dead ends: 691 [2018-11-18 17:05:47,523 INFO L226 Difference]: Without dead ends: 434 [2018-11-18 17:05:47,528 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:05:47,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-11-18 17:05:47,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-11-18 17:05:47,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-11-18 17:05:47,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-11-18 17:05:47,589 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 65 [2018-11-18 17:05:47,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:05:47,590 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-11-18 17:05:47,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:05:47,590 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-11-18 17:05:47,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-18 17:05:47,597 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:05:47,598 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-18 17:05:47,598 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:05:47,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:05:47,598 INFO L82 PathProgramCache]: Analyzing trace with hash 920993175, now seen corresponding path program 1 times [2018-11-18 17:05:47,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:05:47,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:05:47,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:05:47,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:05:47,602 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:05:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:05:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:05:47,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:05:47,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 17:05:47,796 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:05:47,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:05:47,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:05:47,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:05:47,800 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-11-18 17:05:49,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:05:49,160 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-11-18 17:05:49,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 17:05:49,170 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-11-18 17:05:49,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:05:49,174 INFO L225 Difference]: With dead ends: 1062 [2018-11-18 17:05:49,175 INFO L226 Difference]: Without dead ends: 634 [2018-11-18 17:05:49,178 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 17:05:49,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-11-18 17:05:49,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-11-18 17:05:49,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-11-18 17:05:49,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-11-18 17:05:49,202 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 140 [2018-11-18 17:05:49,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:05:49,203 INFO L480 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-11-18 17:05:49,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:05:49,203 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-11-18 17:05:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-18 17:05:49,205 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:05:49,205 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-18 17:05:49,205 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:05:49,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:05:49,205 INFO L82 PathProgramCache]: Analyzing trace with hash 409670480, now seen corresponding path program 1 times [2018-11-18 17:05:49,206 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:05:49,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:05:49,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:05:49,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:05:49,207 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:05:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:05:49,864 WARN L180 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2018-11-18 17:05:50,319 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-18 17:05:50,670 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:05:50,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:05:50,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 17:05:50,672 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:05:50,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:05:50,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:05:50,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:05:50,673 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 6 states. [2018-11-18 17:05:50,966 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-18 17:05:55,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:05:55,550 INFO L93 Difference]: Finished difference Result 1812 states and 2965 transitions. [2018-11-18 17:05:55,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 17:05:55,551 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-11-18 17:05:55,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:05:55,556 INFO L225 Difference]: With dead ends: 1812 [2018-11-18 17:05:55,556 INFO L226 Difference]: Without dead ends: 1193 [2018-11-18 17:05:55,562 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 17:05:55,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2018-11-18 17:05:55,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1138. [2018-11-18 17:05:55,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1138 states. [2018-11-18 17:05:55,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1729 transitions. [2018-11-18 17:05:55,633 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1729 transitions. Word has length 149 [2018-11-18 17:05:55,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:05:55,637 INFO L480 AbstractCegarLoop]: Abstraction has 1138 states and 1729 transitions. [2018-11-18 17:05:55,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:05:55,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1729 transitions. [2018-11-18 17:05:55,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-11-18 17:05:55,642 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:05:55,642 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:05:55,642 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:05:55,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:05:55,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1226965922, now seen corresponding path program 1 times [2018-11-18 17:05:55,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:05:55,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:05:55,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:05:55,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:05:55,644 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:05:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:05:56,090 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:05:56,090 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:05:56,090 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:05:56,091 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 235 with the following transitions: [2018-11-18 17:05:56,092 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [554], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 17:05:56,122 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:05:56,122 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:05:56,506 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:05:56,507 INFO L272 AbstractInterpreter]: Visited 93 different actions 179 times. Merged at 4 different actions 4 times. Never widened. Performed 1469 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1469 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 17:05:56,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:05:56,538 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:05:57,004 INFO L227 lantSequenceWeakener]: Weakened 231 states. On average, predicates are now at 78.28% of their original sizes. [2018-11-18 17:05:57,007 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:05:57,427 INFO L415 sIntCurrentIteration]: We unified 233 AI predicates to 233 [2018-11-18 17:05:57,427 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:05:57,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:05:57,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-11-18 17:05:57,428 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:05:57,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 17:05:57,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 17:05:57,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:05:57,428 INFO L87 Difference]: Start difference. First operand 1138 states and 1729 transitions. Second operand 10 states. [2018-11-18 17:06:52,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:06:52,173 INFO L93 Difference]: Finished difference Result 3161 states and 4762 transitions. [2018-11-18 17:06:52,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 17:06:52,173 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 234 [2018-11-18 17:06:52,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:06:52,178 INFO L225 Difference]: With dead ends: 3161 [2018-11-18 17:06:52,178 INFO L226 Difference]: Without dead ends: 2029 [2018-11-18 17:06:52,182 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 242 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-18 17:06:52,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2018-11-18 17:06:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 2026. [2018-11-18 17:06:52,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2026 states. [2018-11-18 17:06:52,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2026 states to 2026 states and 2678 transitions. [2018-11-18 17:06:52,228 INFO L78 Accepts]: Start accepts. Automaton has 2026 states and 2678 transitions. Word has length 234 [2018-11-18 17:06:52,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:06:52,229 INFO L480 AbstractCegarLoop]: Abstraction has 2026 states and 2678 transitions. [2018-11-18 17:06:52,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 17:06:52,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2026 states and 2678 transitions. [2018-11-18 17:06:52,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2018-11-18 17:06:52,237 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:06:52,238 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:06:52,238 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:06:52,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:06:52,239 INFO L82 PathProgramCache]: Analyzing trace with hash -926137119, now seen corresponding path program 1 times [2018-11-18 17:06:52,239 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:06:52,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:06:52,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:06:52,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:06:52,240 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:06:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:06:52,809 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 17:06:53,054 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-11-18 17:06:53,054 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:06:53,054 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:06:53,054 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 371 with the following transitions: [2018-11-18 17:06:53,055 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 17:06:53,060 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:06:53,060 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:06:56,856 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:06:56,856 INFO L272 AbstractInterpreter]: Visited 120 different actions 353 times. Merged at 7 different actions 15 times. Never widened. Performed 3294 root evaluator evaluations with a maximum evaluation depth of 21. Performed 3294 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 17:06:56,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:06:56,866 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:06:57,728 INFO L227 lantSequenceWeakener]: Weakened 367 states. On average, predicates are now at 80.59% of their original sizes. [2018-11-18 17:06:57,728 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:06:57,826 INFO L415 sIntCurrentIteration]: We unified 369 AI predicates to 369 [2018-11-18 17:06:57,826 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:06:57,827 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:06:57,827 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-11-18 17:06:57,827 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:06:57,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 17:06:57,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 17:06:57,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 17:06:57,829 INFO L87 Difference]: Start difference. First operand 2026 states and 2678 transitions. Second operand 9 states. [2018-11-18 17:07:15,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:07:15,753 INFO L93 Difference]: Finished difference Result 4313 states and 5869 transitions. [2018-11-18 17:07:15,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 17:07:15,753 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 370 [2018-11-18 17:07:15,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:07:15,763 INFO L225 Difference]: With dead ends: 4313 [2018-11-18 17:07:15,763 INFO L226 Difference]: Without dead ends: 2476 [2018-11-18 17:07:15,768 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 376 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-18 17:07:15,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2018-11-18 17:07:15,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2456. [2018-11-18 17:07:15,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2456 states. [2018-11-18 17:07:15,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 3244 transitions. [2018-11-18 17:07:15,815 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 3244 transitions. Word has length 370 [2018-11-18 17:07:15,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:07:15,815 INFO L480 AbstractCegarLoop]: Abstraction has 2456 states and 3244 transitions. [2018-11-18 17:07:15,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 17:07:15,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 3244 transitions. [2018-11-18 17:07:15,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2018-11-18 17:07:15,825 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:07:15,826 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 17:07:15,826 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:07:15,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:07:15,826 INFO L82 PathProgramCache]: Analyzing trace with hash -894034745, now seen corresponding path program 1 times [2018-11-18 17:07:15,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:07:15,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:07:15,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:07:15,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:07:15,827 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:07:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:07:16,492 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-18 17:07:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 325 proven. 154 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-11-18 17:07:16,554 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:07:16,554 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:07:16,555 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 420 with the following transitions: [2018-11-18 17:07:16,555 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 17:07:16,558 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:07:16,558 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:07:16,818 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:07:16,818 INFO L272 AbstractInterpreter]: Visited 122 different actions 484 times. Merged at 9 different actions 32 times. Never widened. Performed 4455 root evaluator evaluations with a maximum evaluation depth of 16. Performed 4455 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 9 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 17:07:16,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:07:16,829 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:07:16,829 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:07:16,829 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/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 [2018-11-18 17:07:16,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:07:16,836 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:07:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:07:16,935 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:07:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 513 proven. 2 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2018-11-18 17:07:17,153 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:07:17,751 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 325 proven. 154 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-11-18 17:07:17,767 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:07:17,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-18 17:07:17,767 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:07:17,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 17:07:17,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 17:07:17,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:07:17,768 INFO L87 Difference]: Start difference. First operand 2456 states and 3244 transitions. Second operand 9 states. [2018-11-18 17:07:21,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:07:21,097 INFO L93 Difference]: Finished difference Result 6062 states and 8732 transitions. [2018-11-18 17:07:21,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-18 17:07:21,098 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 419 [2018-11-18 17:07:21,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:07:21,107 INFO L225 Difference]: With dead ends: 6062 [2018-11-18 17:07:21,107 INFO L226 Difference]: Without dead ends: 3611 [2018-11-18 17:07:21,114 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 855 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2018-11-18 17:07:21,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3611 states. [2018-11-18 17:07:21,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3611 to 2907. [2018-11-18 17:07:21,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2907 states. [2018-11-18 17:07:21,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 3633 transitions. [2018-11-18 17:07:21,174 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 3633 transitions. Word has length 419 [2018-11-18 17:07:21,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:07:21,174 INFO L480 AbstractCegarLoop]: Abstraction has 2907 states and 3633 transitions. [2018-11-18 17:07:21,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 17:07:21,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 3633 transitions. [2018-11-18 17:07:21,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2018-11-18 17:07:21,193 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:07:21,193 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:07:21,193 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:07:21,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:07:21,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1035868732, now seen corresponding path program 1 times [2018-11-18 17:07:21,193 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:07:21,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:07:21,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:07:21,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:07:21,194 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:07:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:07:21,589 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 383 proven. 69 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-11-18 17:07:21,589 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:07:21,589 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:07:21,592 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 441 with the following transitions: [2018-11-18 17:07:21,592 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [494], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 17:07:21,595 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:07:21,595 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:07:26,532 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:07:26,533 INFO L272 AbstractInterpreter]: Visited 122 different actions 487 times. Merged at 9 different actions 35 times. Widened at 1 different actions 1 times. Performed 4654 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4654 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 17:07:26,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:07:26,542 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:07:26,542 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:07:26,542 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/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 [2018-11-18 17:07:26,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:07:26,550 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:07:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:07:26,635 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:07:26,714 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 552 proven. 2 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2018-11-18 17:07:26,714 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:07:27,038 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 383 proven. 69 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-11-18 17:07:27,063 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:07:27,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-11-18 17:07:27,063 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:07:27,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 17:07:27,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 17:07:27,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-18 17:07:27,065 INFO L87 Difference]: Start difference. First operand 2907 states and 3633 transitions. Second operand 10 states. [2018-11-18 17:07:29,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:07:29,310 INFO L93 Difference]: Finished difference Result 8076 states and 10719 transitions. [2018-11-18 17:07:29,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-18 17:07:29,311 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 440 [2018-11-18 17:07:29,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:07:29,324 INFO L225 Difference]: With dead ends: 8076 [2018-11-18 17:07:29,324 INFO L226 Difference]: Without dead ends: 4845 [2018-11-18 17:07:29,335 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 918 GetRequests, 891 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=204, Invalid=498, Unknown=0, NotChecked=0, Total=702 [2018-11-18 17:07:29,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4845 states. [2018-11-18 17:07:29,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4845 to 4524. [2018-11-18 17:07:29,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4524 states. [2018-11-18 17:07:29,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 5522 transitions. [2018-11-18 17:07:29,410 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 5522 transitions. Word has length 440 [2018-11-18 17:07:29,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:07:29,411 INFO L480 AbstractCegarLoop]: Abstraction has 4524 states and 5522 transitions. [2018-11-18 17:07:29,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 17:07:29,411 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 5522 transitions. [2018-11-18 17:07:29,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2018-11-18 17:07:29,417 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:07:29,417 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:07:29,417 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:07:29,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:07:29,417 INFO L82 PathProgramCache]: Analyzing trace with hash 318479449, now seen corresponding path program 1 times [2018-11-18 17:07:29,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:07:29,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:07:29,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:07:29,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:07:29,418 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:07:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:07:30,011 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 509 proven. 149 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-18 17:07:30,011 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:07:30,011 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:07:30,012 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 444 with the following transitions: [2018-11-18 17:07:30,012 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 17:07:30,014 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:07:30,014 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:07:35,785 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:07:35,785 INFO L272 AbstractInterpreter]: Visited 122 different actions 485 times. Merged at 9 different actions 33 times. Never widened. Performed 4646 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4646 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 17:07:35,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:07:35,790 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:07:35,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:07:35,791 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/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 [2018-11-18 17:07:35,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:07:35,798 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:07:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:07:35,864 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:07:36,048 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 477 proven. 2 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2018-11-18 17:07:36,048 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:07:36,305 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 477 proven. 2 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2018-11-18 17:07:36,321 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:07:36,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-18 17:07:36,322 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:07:36,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 17:07:36,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 17:07:36,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-18 17:07:36,323 INFO L87 Difference]: Start difference. First operand 4524 states and 5522 transitions. Second operand 17 states. [2018-11-18 17:07:39,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:07:39,942 INFO L93 Difference]: Finished difference Result 10209 states and 13122 transitions. [2018-11-18 17:07:39,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-18 17:07:39,942 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 443 [2018-11-18 17:07:39,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:07:39,960 INFO L225 Difference]: With dead ends: 10209 [2018-11-18 17:07:39,960 INFO L226 Difference]: Without dead ends: 4930 [2018-11-18 17:07:39,984 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 944 GetRequests, 897 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=521, Invalid=1735, Unknown=0, NotChecked=0, Total=2256 [2018-11-18 17:07:39,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4930 states. [2018-11-18 17:07:40,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4930 to 4660. [2018-11-18 17:07:40,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4660 states. [2018-11-18 17:07:40,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4660 states to 4660 states and 5335 transitions. [2018-11-18 17:07:40,076 INFO L78 Accepts]: Start accepts. Automaton has 4660 states and 5335 transitions. Word has length 443 [2018-11-18 17:07:40,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:07:40,076 INFO L480 AbstractCegarLoop]: Abstraction has 4660 states and 5335 transitions. [2018-11-18 17:07:40,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 17:07:40,077 INFO L276 IsEmpty]: Start isEmpty. Operand 4660 states and 5335 transitions. [2018-11-18 17:07:40,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2018-11-18 17:07:40,087 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:07:40,088 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-11-18 17:07:40,088 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:07:40,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:07:40,089 INFO L82 PathProgramCache]: Analyzing trace with hash -2053023241, now seen corresponding path program 1 times [2018-11-18 17:07:40,089 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:07:40,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:07:40,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:07:40,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:07:40,090 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:07:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:07:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 641 proven. 80 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2018-11-18 17:07:40,813 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:07:40,813 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:07:40,813 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 659 with the following transitions: [2018-11-18 17:07:40,813 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [538], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 17:07:40,816 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:07:40,817 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:07:45,417 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:07:45,417 INFO L272 AbstractInterpreter]: Visited 191 different actions 758 times. Merged at 9 different actions 30 times. Never widened. Performed 8266 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8266 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 17:07:45,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:07:45,426 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:07:45,426 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:07:45,426 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/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 [2018-11-18 17:07:45,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:07:45,433 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:07:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:07:45,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:07:45,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 891 proven. 2 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2018-11-18 17:07:45,722 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:07:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 641 proven. 80 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2018-11-18 17:07:46,063 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:07:46,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-18 17:07:46,063 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:07:46,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 17:07:46,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 17:07:46,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 17:07:46,065 INFO L87 Difference]: Start difference. First operand 4660 states and 5335 transitions. Second operand 7 states. [2018-11-18 17:07:47,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:07:47,672 INFO L93 Difference]: Finished difference Result 13991 states and 18562 transitions. [2018-11-18 17:07:47,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 17:07:47,673 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 658 [2018-11-18 17:07:47,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:07:47,716 INFO L225 Difference]: With dead ends: 13991 [2018-11-18 17:07:47,716 INFO L226 Difference]: Without dead ends: 9516 [2018-11-18 17:07:47,751 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1332 GetRequests, 1317 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-18 17:07:47,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9516 states. [2018-11-18 17:07:47,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9516 to 9286. [2018-11-18 17:07:47,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9286 states. [2018-11-18 17:07:47,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9286 states to 9286 states and 10904 transitions. [2018-11-18 17:07:47,953 INFO L78 Accepts]: Start accepts. Automaton has 9286 states and 10904 transitions. Word has length 658 [2018-11-18 17:07:47,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:07:47,954 INFO L480 AbstractCegarLoop]: Abstraction has 9286 states and 10904 transitions. [2018-11-18 17:07:47,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 17:07:47,955 INFO L276 IsEmpty]: Start isEmpty. Operand 9286 states and 10904 transitions. [2018-11-18 17:07:47,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2018-11-18 17:07:47,968 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:07:47,968 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-11-18 17:07:47,968 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:07:47,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:07:47,969 INFO L82 PathProgramCache]: Analyzing trace with hash 483578112, now seen corresponding path program 1 times [2018-11-18 17:07:47,969 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:07:47,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:07:47,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:07:47,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:07:47,972 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:07:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:07:48,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 648 proven. 80 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2018-11-18 17:07:48,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:07:48,600 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:07:48,601 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 666 with the following transitions: [2018-11-18 17:07:48,601 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [538], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 17:07:48,603 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:07:48,604 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:07:53,085 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:07:53,085 INFO L272 AbstractInterpreter]: Visited 192 different actions 772 times. Merged at 10 different actions 40 times. Widened at 1 different actions 1 times. Performed 8459 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8459 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 17:07:53,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:07:53,098 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:07:53,098 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:07:53,098 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/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 [2018-11-18 17:07:53,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:07:53,107 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:07:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:07:53,191 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:07:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 898 proven. 2 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2018-11-18 17:07:53,383 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:07:53,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 648 proven. 80 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2018-11-18 17:07:53,639 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:07:53,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-18 17:07:53,639 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:07:53,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 17:07:53,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 17:07:53,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 17:07:53,640 INFO L87 Difference]: Start difference. First operand 9286 states and 10904 transitions. Second operand 7 states. [2018-11-18 17:07:56,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:07:56,443 INFO L93 Difference]: Finished difference Result 22095 states and 30543 transitions. [2018-11-18 17:07:56,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 17:07:56,444 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 665 [2018-11-18 17:07:56,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:07:56,515 INFO L225 Difference]: With dead ends: 22095 [2018-11-18 17:07:56,515 INFO L226 Difference]: Without dead ends: 13183 [2018-11-18 17:07:56,584 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1346 GetRequests, 1331 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-18 17:07:56,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13183 states. [2018-11-18 17:07:56,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13183 to 12682. [2018-11-18 17:07:56,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12682 states. [2018-11-18 17:07:56,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12682 states to 12682 states and 15144 transitions. [2018-11-18 17:07:56,852 INFO L78 Accepts]: Start accepts. Automaton has 12682 states and 15144 transitions. Word has length 665 [2018-11-18 17:07:56,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:07:56,853 INFO L480 AbstractCegarLoop]: Abstraction has 12682 states and 15144 transitions. [2018-11-18 17:07:56,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 17:07:56,853 INFO L276 IsEmpty]: Start isEmpty. Operand 12682 states and 15144 transitions. [2018-11-18 17:07:56,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2018-11-18 17:07:56,870 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:07:56,871 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-18 17:07:56,871 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:07:56,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:07:56,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1799528359, now seen corresponding path program 1 times [2018-11-18 17:07:56,871 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:07:56,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:07:56,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:07:56,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:07:56,872 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:07:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:07:57,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1377 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 1075 trivial. 0 not checked. [2018-11-18 17:07:57,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:07:57,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 17:07:57,303 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:07:57,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 17:07:57,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 17:07:57,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:07:57,304 INFO L87 Difference]: Start difference. First operand 12682 states and 15144 transitions. Second operand 4 states. [2018-11-18 17:07:58,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:07:58,271 INFO L93 Difference]: Finished difference Result 27846 states and 33944 transitions. [2018-11-18 17:07:58,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 17:07:58,272 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 722 [2018-11-18 17:07:58,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:07:58,273 INFO L225 Difference]: With dead ends: 27846 [2018-11-18 17:07:58,273 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 17:07:58,359 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:07:58,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 17:07:58,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 17:07:58,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 17:07:58,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 17:07:58,360 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 722 [2018-11-18 17:07:58,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:07:58,360 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:07:58,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 17:07:58,360 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:07:58,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:07:58,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 17:07:58,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:58,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:58,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:58,903 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,078 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,081 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,299 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,363 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,501 WARN L180 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 347 [2018-11-18 17:07:59,572 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,678 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,832 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:07:59,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:08:00,065 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:08:00,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:08:00,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:08:00,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:08:00,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:08:00,564 WARN L180 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 467 DAG size of output: 369 [2018-11-18 17:08:01,038 WARN L180 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 15 [2018-11-18 17:08:01,370 WARN L180 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 29 [2018-11-18 17:08:02,246 WARN L180 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 49 [2018-11-18 17:08:03,682 WARN L180 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 341 DAG size of output: 53 [2018-11-18 17:08:05,079 WARN L180 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 366 DAG size of output: 51 [2018-11-18 17:08:05,081 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:08:05,081 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-11-18 17:08:05,081 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:08:05,081 INFO L425 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-18 17:08:05,081 INFO L425 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 178) no Hoare annotation was computed. [2018-11-18 17:08:05,082 INFO L425 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-18 17:08:05,083 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 17:08:05,084 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 17:08:05,085 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-18 17:08:05,090 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse0 (= ~a12~0 |old(~a12~0)|)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse1 (= |old(~a15~0)| ~a15~0))) (let ((.cse4 (and .cse0 .cse6 .cse1 (= 1 ~a24~0))) (.cse3 (= 9 |old(~a15~0)|)) (.cse5 (not (= 1 |old(~a24~0)|))) (.cse7 (= 6 |old(~a15~0)|)) (.cse2 (= 8 |old(~a15~0)|)) (.cse8 (and .cse0 (= ~a24~0 |old(~a24~0)|) .cse6 .cse1))) (and (or (and .cse0 (= 7 ~a21~0) .cse1) (not (= 7 |old(~a21~0)|)) .cse2 .cse3) (or .cse4 .cse5 .cse2 (= 10 |old(~a21~0)|)) (or (and .cse0 .cse6 .cse1 (= ~a24~0 1)) (= 0 |old(~a21~0)|) .cse5 .cse7 (= |calculate_output_#in~input| 0)) (or .cse4 .cse5 (< 11 |old(~a12~0)|) .cse2) (or .cse8 .cse7 .cse2 (< 6 |old(~a21~0)|) .cse3) (or .cse5 .cse7 .cse2 .cse8)))) [2018-11-18 17:08:05,090 INFO L425 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-18 17:08:05,090 INFO L425 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-18 17:08:05,090 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,090 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 17:08:05,091 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-18 17:08:05,092 INFO L425 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-18 17:08:05,093 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 17:08:05,094 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,095 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-18 17:08:05,096 INFO L425 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-18 17:08:05,097 INFO L425 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-18 17:08:05,101 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-18 17:08:05,101 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 17:08:05,101 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 17:08:05,101 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-18 17:08:05,102 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 17:08:05,103 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-18 17:08:05,104 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:08:05,105 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a15~0 8) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-11-18 17:08:05,105 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:08:05,105 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:08:05,105 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (and (= |old(~a15~0)| ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-11-18 17:08:05,105 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-18 17:08:05,105 INFO L421 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (= 1 ~a24~0)) (.cse1 (not (= ~a15~0 8)))) (let ((.cse2 (not (= ~a15~0 6))) (.cse4 (not (= ~a15~0 9))) (.cse3 (and .cse0 .cse1))) (or (and .cse0 .cse1 .cse2) (not (= 7 |old(~a21~0)|)) (and (not (= 10 ~a21~0)) .cse3) (and .cse4 .cse1 (<= ~a21~0 6) .cse2) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse4 (= 7 ~a21~0) .cse1) (and (not (= ~a21~0 0)) (not (= main_~input~0 0)) (= ~a24~0 1) (= ~a15~0 |old(~a15~0)|)) (and .cse3 (<= ~a12~0 11))))) [2018-11-18 17:08:05,105 INFO L425 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-18 17:08:05,105 INFO L425 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-18 17:08:05,105 INFO L425 ceAbstractionStarter]: For program point L880-1(lines 880 889) no Hoare annotation was computed. [2018-11-18 17:08:05,105 INFO L421 ceAbstractionStarter]: At program point L880-3(lines 880 889) the Hoare annotation is: (let ((.cse0 (= 1 ~a24~0)) (.cse1 (not (= ~a15~0 8)))) (let ((.cse2 (not (= ~a15~0 6))) (.cse4 (not (= ~a15~0 9))) (.cse3 (and .cse0 .cse1))) (or (and .cse0 .cse1 .cse2) (not (= 7 |old(~a21~0)|)) (and (not (= 10 ~a21~0)) .cse3) (and .cse4 .cse1 (<= ~a21~0 6) .cse2) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (and (and (not (= ~a21~0 0)) (= ~a24~0 1)) (= ~a15~0 |old(~a15~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse4 (= 7 ~a21~0) .cse1) (and .cse3 (<= ~a12~0 11))))) [2018-11-18 17:08:05,107 INFO L425 ceAbstractionStarter]: For program point L880-4(lines 874 890) no Hoare annotation was computed. [2018-11-18 17:08:05,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:08:05 BoogieIcfgContainer [2018-11-18 17:08:05,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:08:05,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:08:05,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:08:05,116 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:08:05,116 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:05:45" (3/4) ... [2018-11-18 17:08:05,124 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:08:05,129 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 17:08:05,129 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 17:08:05,130 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 17:08:05,143 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 17:08:05,144 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 17:08:05,169 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((1 == a24 && !(a15 == 8)) && !(a15 == 6)) || !(7 == \old(a21))) || (!(10 == a21) && 1 == a24 && !(a15 == 8))) || (((!(a15 == 9) && !(a15 == 8)) && a21 <= 6) && !(a15 == 6))) || !(1 == \old(a24))) || !(8 == \old(a15))) || ((!(a21 == 0) && a24 == 1) && a15 == \old(a15))) || !(0 == \old(a12) + 49)) || ((!(a15 == 9) && 7 == a21) && !(a15 == 8))) || ((1 == a24 && !(a15 == 8)) && a12 <= 11) [2018-11-18 17:08:05,252 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cc714570-69d5-4856-b9a4-0cf30337294f/bin-2019/utaipan/witness.graphml [2018-11-18 17:08:05,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:08:05,253 INFO L168 Benchmark]: Toolchain (without parser) took 142083.15 ms. Allocated memory was 1.0 GB in the beginning and 5.0 GB in the end (delta: 4.0 GB). Free memory was 959.1 MB in the beginning and 3.5 GB in the end (delta: -2.5 GB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-11-18 17:08:05,254 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:08:05,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.42 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 918.9 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:08:05,255 INFO L168 Benchmark]: Boogie Procedure Inliner took 120.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 918.9 MB in the beginning and 1.1 GB in the end (delta: -215.5 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:08:05,255 INFO L168 Benchmark]: Boogie Preprocessor took 64.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:08:05,255 INFO L168 Benchmark]: RCFGBuilder took 2042.48 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: 124.0 MB). Peak memory consumption was 124.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:08:05,255 INFO L168 Benchmark]: TraceAbstraction took 139159.72 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.8 GB). Free memory was 1.0 GB in the beginning and 3.5 GB in the end (delta: -2.5 GB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. [2018-11-18 17:08:05,256 INFO L168 Benchmark]: Witness Printer took 136.68 ms. Allocated memory is still 5.0 GB. Free memory was 3.5 GB in the beginning and 3.5 GB in the end (delta: 26.9 kB). Peak memory consumption was 26.9 kB. Max. memory is 11.5 GB. [2018-11-18 17:08:05,257 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 555.42 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 918.9 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 120.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 918.9 MB in the beginning and 1.1 GB in the end (delta: -215.5 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2042.48 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: 124.0 MB). Peak memory consumption was 124.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 139159.72 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.8 GB). Free memory was 1.0 GB in the beginning and 3.5 GB in the end (delta: -2.5 GB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. * Witness Printer took 136.68 ms. Allocated memory is still 5.0 GB. Free memory was 3.5 GB in the beginning and 3.5 GB in the end (delta: 26.9 kB). Peak memory consumption was 26.9 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 178]: 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: 880]: Loop Invariant Derived loop invariant: ((((((((((1 == a24 && !(a15 == 8)) && !(a15 == 6)) || !(7 == \old(a21))) || (!(10 == a21) && 1 == a24 && !(a15 == 8))) || (((!(a15 == 9) && !(a15 == 8)) && a21 <= 6) && !(a15 == 6))) || !(1 == \old(a24))) || !(8 == \old(a15))) || ((!(a21 == 0) && a24 == 1) && a15 == \old(a15))) || !(0 == \old(a12) + 49)) || ((!(a15 == 9) && 7 == a21) && !(a15 == 8))) || ((1 == a24 && !(a15 == 8)) && a12 <= 11) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. SAFE Result, 139.0s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 95.0s AutomataDifference, 0.0s DeadEndRemovalTime, 6.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 1254 SDtfs, 17279 SDslu, 2093 SDs, 0 SdLazy, 21898 SolverSat, 4696 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 6077 GetRequests, 5887 SyntacticMatches, 17 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1084 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12682occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 24.3s AbstIntTime, 7 AbstIntIterations, 2 AbstIntStrong, 0.9970431467491233 AbsIntWeakeningRatio, 0.09634551495016612 AbsIntAvgWeakeningVarsNumRemoved, 15.652823920265782 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 2113 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 271 PreInvPairs, 463 NumberOfFragments, 407 HoareAnnotationTreeSize, 271 FomulaSimplifications, 32169 FormulaSimplificationTreeSizeReduction, 2.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 50143 FormulaSimplificationTreeSizeReductionInter, 4.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 6930 NumberOfCodeBlocks, 6930 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 9534 ConstructedInterpolants, 0 QuantifiedInterpolants, 13832116 SizeOfPredicates, 8 NumberOfNonLiveVariables, 3994 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 21 InterpolantComputations, 4 PerfectInterpolantSequences, 15365/16296 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...