./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.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_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/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 c2ee6781c62be40fa372129eaacaba9832af3ce9 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:55:18,205 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:55:18,206 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:55:18,214 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:55:18,214 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:55:18,215 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:55:18,216 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:55:18,217 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:55:18,218 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:55:18,219 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:55:18,220 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:55:18,220 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:55:18,221 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:55:18,221 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:55:18,222 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:55:18,223 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:55:18,223 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:55:18,224 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:55:18,226 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:55:18,227 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:55:18,227 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:55:18,228 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:55:18,230 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:55:18,230 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:55:18,230 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:55:18,231 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:55:18,231 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:55:18,232 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:55:18,232 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:55:18,233 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:55:18,233 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:55:18,234 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:55:18,234 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:55:18,234 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:55:18,235 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:55:18,235 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:55:18,235 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:55:18,245 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:55:18,245 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:55:18,246 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:55:18,246 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:55:18,246 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:55:18,246 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:55:18,246 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:55:18,247 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:55:18,247 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:55:18,247 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:55:18,247 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:55:18,247 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:55:18,247 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:55:18,248 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:55:18,248 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:55:18,248 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:55:18,248 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:55:18,248 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:55:18,248 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:55:18,249 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:55:18,249 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:55:18,249 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:55:18,249 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:55:18,249 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:55:18,249 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:55:18,250 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:55:18,250 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:55:18,250 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:55:18,250 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:55:18,250 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:55:18,250 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:55:18,250 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:55:18,251 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:55:18,251 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:55:18,251 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:55:18,251 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:55:18,251 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:55:18,251 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_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/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 -> c2ee6781c62be40fa372129eaacaba9832af3ce9 [2018-11-18 15:55:18,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:55:18,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:55:18,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:55:18,287 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:55:18,287 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:55:18,287 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.c [2018-11-18 15:55:18,331 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/bin-2019/utaipan/data/9ca3db529/81fca4a1770540e5837bbefac4b267ee/FLAGaca144332 [2018-11-18 15:55:18,770 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:55:18,771 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.c [2018-11-18 15:55:18,779 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/bin-2019/utaipan/data/9ca3db529/81fca4a1770540e5837bbefac4b267ee/FLAGaca144332 [2018-11-18 15:55:18,791 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/bin-2019/utaipan/data/9ca3db529/81fca4a1770540e5837bbefac4b267ee [2018-11-18 15:55:18,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:55:18,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:55:18,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:55:18,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:55:18,799 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:55:18,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:55:18" (1/1) ... [2018-11-18 15:55:18,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f427c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:18, skipping insertion in model container [2018-11-18 15:55:18,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:55:18" (1/1) ... [2018-11-18 15:55:18,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:55:18,845 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:55:19,072 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:55:19,076 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:55:19,147 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:55:19,158 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:55:19,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:19 WrapperNode [2018-11-18 15:55:19,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:55:19,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:55:19,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:55:19,159 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:55:19,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:19" (1/1) ... [2018-11-18 15:55:19,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:19" (1/1) ... [2018-11-18 15:55:19,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:55:19,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:55:19,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:55:19,238 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:55:19,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:19" (1/1) ... [2018-11-18 15:55:19,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:19" (1/1) ... [2018-11-18 15:55:19,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:19" (1/1) ... [2018-11-18 15:55:19,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:19" (1/1) ... [2018-11-18 15:55:19,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:19" (1/1) ... [2018-11-18 15:55:19,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:19" (1/1) ... [2018-11-18 15:55:19,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:19" (1/1) ... [2018-11-18 15:55:19,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:55:19,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:55:19,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:55:19,287 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:55:19,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/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 15:55:19,337 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 15:55:19,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:55:19,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:55:19,338 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 15:55:19,338 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 15:55:19,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:55:19,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:55:19,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:55:19,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:55:20,189 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:55:20,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:55:20 BoogieIcfgContainer [2018-11-18 15:55:20,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:55:20,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:55:20,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:55:20,193 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:55:20,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:55:18" (1/3) ... [2018-11-18 15:55:20,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25585ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:55:20, skipping insertion in model container [2018-11-18 15:55:20,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:19" (2/3) ... [2018-11-18 15:55:20,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25585ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:55:20, skipping insertion in model container [2018-11-18 15:55:20,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:55:20" (3/3) ... [2018-11-18 15:55:20,195 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label49_true-unreach-call.c [2018-11-18 15:55:20,201 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:55:20,206 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:55:20,215 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:55:20,236 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:55:20,236 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:55:20,236 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:55:20,236 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:55:20,236 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:55:20,237 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:55:20,237 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:55:20,237 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:55:20,254 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-18 15:55:20,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 15:55:20,258 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:20,259 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] [2018-11-18 15:55:20,261 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:20,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:20,265 INFO L82 PathProgramCache]: Analyzing trace with hash -654369111, now seen corresponding path program 1 times [2018-11-18 15:55:20,266 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:55:20,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:20,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:20,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:20,296 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:55:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:20,443 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 15:55:20,445 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:55:20,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:55:20,445 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:55:20,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:55:20,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:55:20,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:55:20,459 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-18 15:55:21,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:21,073 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-18 15:55:21,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:55:21,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-11-18 15:55:21,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:21,087 INFO L225 Difference]: With dead ends: 574 [2018-11-18 15:55:21,087 INFO L226 Difference]: Without dead ends: 356 [2018-11-18 15:55:21,092 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 15:55:21,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-18 15:55:21,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-18 15:55:21,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-18 15:55:21,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-11-18 15:55:21,139 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 29 [2018-11-18 15:55:21,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:21,140 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-11-18 15:55:21,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:55:21,140 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-11-18 15:55:21,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-18 15:55:21,144 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:21,144 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:21,145 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:21,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:21,146 INFO L82 PathProgramCache]: Analyzing trace with hash 350526568, now seen corresponding path program 1 times [2018-11-18 15:55:21,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:55:21,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:21,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:21,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:21,148 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:55:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:21,287 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:21,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:55:21,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:55:21,288 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:55:21,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:55:21,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:55:21,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:55:21,290 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 6 states. [2018-11-18 15:55:21,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:21,828 INFO L93 Difference]: Finished difference Result 867 states and 1507 transitions. [2018-11-18 15:55:21,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:55:21,829 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2018-11-18 15:55:21,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:21,831 INFO L225 Difference]: With dead ends: 867 [2018-11-18 15:55:21,832 INFO L226 Difference]: Without dead ends: 517 [2018-11-18 15:55:21,833 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 15:55:21,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2018-11-18 15:55:21,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 508. [2018-11-18 15:55:21,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2018-11-18 15:55:21,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 831 transitions. [2018-11-18 15:55:21,853 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 831 transitions. Word has length 103 [2018-11-18 15:55:21,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:21,853 INFO L480 AbstractCegarLoop]: Abstraction has 508 states and 831 transitions. [2018-11-18 15:55:21,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:55:21,854 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 831 transitions. [2018-11-18 15:55:21,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-18 15:55:21,856 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:21,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:21,857 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:21,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:21,857 INFO L82 PathProgramCache]: Analyzing trace with hash -781565036, now seen corresponding path program 1 times [2018-11-18 15:55:21,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:55:21,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:21,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:21,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:21,858 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:55:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:21,935 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:21,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:55:21,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 15:55:21,935 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:55:21,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 15:55:21,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 15:55:21,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 15:55:21,936 INFO L87 Difference]: Start difference. First operand 508 states and 831 transitions. Second operand 4 states. [2018-11-18 15:55:22,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:22,622 INFO L93 Difference]: Finished difference Result 1742 states and 2991 transitions. [2018-11-18 15:55:22,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 15:55:22,622 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2018-11-18 15:55:22,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:22,627 INFO L225 Difference]: With dead ends: 1742 [2018-11-18 15:55:22,627 INFO L226 Difference]: Without dead ends: 1240 [2018-11-18 15:55:22,630 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 15:55:22,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2018-11-18 15:55:22,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1240. [2018-11-18 15:55:22,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1240 states. [2018-11-18 15:55:22,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1869 transitions. [2018-11-18 15:55:22,660 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1869 transitions. Word has length 109 [2018-11-18 15:55:22,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:22,661 INFO L480 AbstractCegarLoop]: Abstraction has 1240 states and 1869 transitions. [2018-11-18 15:55:22,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 15:55:22,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1869 transitions. [2018-11-18 15:55:22,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-11-18 15:55:22,664 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:22,664 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:22,664 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:22,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:22,665 INFO L82 PathProgramCache]: Analyzing trace with hash -883752961, now seen corresponding path program 1 times [2018-11-18 15:55:22,665 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:55:22,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:22,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:22,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:22,666 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:55:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:22,823 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:22,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:55:22,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:55:22,824 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:55:22,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:55:22,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:55:22,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:55:22,825 INFO L87 Difference]: Start difference. First operand 1240 states and 1869 transitions. Second operand 6 states. [2018-11-18 15:55:23,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:23,514 INFO L93 Difference]: Finished difference Result 2759 states and 4120 transitions. [2018-11-18 15:55:23,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:55:23,516 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2018-11-18 15:55:23,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:23,522 INFO L225 Difference]: With dead ends: 2759 [2018-11-18 15:55:23,523 INFO L226 Difference]: Without dead ends: 1525 [2018-11-18 15:55:23,526 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 15:55:23,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1525 states. [2018-11-18 15:55:23,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1525 to 1485. [2018-11-18 15:55:23,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1485 states. [2018-11-18 15:55:23,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2034 transitions. [2018-11-18 15:55:23,561 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2034 transitions. Word has length 166 [2018-11-18 15:55:23,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:23,561 INFO L480 AbstractCegarLoop]: Abstraction has 1485 states and 2034 transitions. [2018-11-18 15:55:23,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:55:23,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2034 transitions. [2018-11-18 15:55:23,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-11-18 15:55:23,564 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:23,564 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:23,565 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:23,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:23,565 INFO L82 PathProgramCache]: Analyzing trace with hash 752941163, now seen corresponding path program 1 times [2018-11-18 15:55:23,565 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:55:23,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:23,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:23,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:23,566 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:55:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:23,711 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:23,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:55:23,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:55:23,712 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:55:23,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:55:23,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:55:23,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:55:23,712 INFO L87 Difference]: Start difference. First operand 1485 states and 2034 transitions. Second operand 6 states. [2018-11-18 15:55:24,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:24,419 INFO L93 Difference]: Finished difference Result 3547 states and 5008 transitions. [2018-11-18 15:55:24,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:55:24,419 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2018-11-18 15:55:24,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:24,426 INFO L225 Difference]: With dead ends: 3547 [2018-11-18 15:55:24,426 INFO L226 Difference]: Without dead ends: 2068 [2018-11-18 15:55:24,429 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 15:55:24,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2018-11-18 15:55:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 2051. [2018-11-18 15:55:24,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2051 states. [2018-11-18 15:55:24,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 2708 transitions. [2018-11-18 15:55:24,460 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 2708 transitions. Word has length 172 [2018-11-18 15:55:24,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:24,461 INFO L480 AbstractCegarLoop]: Abstraction has 2051 states and 2708 transitions. [2018-11-18 15:55:24,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:55:24,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 2708 transitions. [2018-11-18 15:55:24,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-11-18 15:55:24,465 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:24,465 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, 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, 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] [2018-11-18 15:55:24,465 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:24,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:24,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1320084340, now seen corresponding path program 1 times [2018-11-18 15:55:24,466 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:55:24,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:24,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:24,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:24,467 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:55:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:24,614 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-18 15:55:24,614 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:55:24,614 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:55:24,615 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 247 with the following transitions: [2018-11-18 15:55:24,616 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [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], [655], [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], [762], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 15:55:24,651 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:55:24,651 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:55:25,060 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:55:25,061 INFO L272 AbstractInterpreter]: Visited 146 different actions 290 times. Merged at 7 different actions 10 times. Never widened. Performed 3109 root evaluator evaluations with a maximum evaluation depth of 8. Performed 3109 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 2 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 15:55:25,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:25,078 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:55:25,078 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:55:25,079 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/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 15:55:25,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:25,086 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:55:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:25,143 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:25,246 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:25,246 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:55:25,390 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:25,406 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 15:55:25,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-11-18 15:55:25,406 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 15:55:25,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 15:55:25,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 15:55:25,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-18 15:55:25,407 INFO L87 Difference]: Start difference. First operand 2051 states and 2708 transitions. Second operand 11 states. [2018-11-18 15:55:27,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:27,043 INFO L93 Difference]: Finished difference Result 5282 states and 7182 transitions. [2018-11-18 15:55:27,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 15:55:27,043 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 246 [2018-11-18 15:55:27,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:27,050 INFO L225 Difference]: With dead ends: 5282 [2018-11-18 15:55:27,050 INFO L226 Difference]: Without dead ends: 1645 [2018-11-18 15:55:27,057 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 496 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2018-11-18 15:55:27,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2018-11-18 15:55:27,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1200. [2018-11-18 15:55:27,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1200 states. [2018-11-18 15:55:27,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 1360 transitions. [2018-11-18 15:55:27,080 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 1360 transitions. Word has length 246 [2018-11-18 15:55:27,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:27,080 INFO L480 AbstractCegarLoop]: Abstraction has 1200 states and 1360 transitions. [2018-11-18 15:55:27,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 15:55:27,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 1360 transitions. [2018-11-18 15:55:27,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-11-18 15:55:27,083 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:27,083 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:55:27,083 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:27,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:27,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1377879184, now seen corresponding path program 1 times [2018-11-18 15:55:27,084 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:55:27,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:27,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:27,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:27,085 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:55:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:27,456 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 118 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:27,456 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:55:27,457 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:55:27,457 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 261 with the following transitions: [2018-11-18 15:55:27,457 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [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], [786], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 15:55:27,463 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:55:27,463 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:55:27,569 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 15:55:27,570 INFO L272 AbstractInterpreter]: Visited 148 different actions 148 times. Never merged. Never widened. Performed 1461 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1461 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 24 variables. [2018-11-18 15:55:27,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:27,572 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 15:55:27,827 INFO L227 lantSequenceWeakener]: Weakened 251 states. On average, predicates are now at 72.88% of their original sizes. [2018-11-18 15:55:27,828 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 15:55:27,864 INFO L415 sIntCurrentIteration]: We unified 259 AI predicates to 259 [2018-11-18 15:55:27,864 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 15:55:27,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:55:27,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2018-11-18 15:55:27,865 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:55:27,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:55:27,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:55:27,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:55:27,866 INFO L87 Difference]: Start difference. First operand 1200 states and 1360 transitions. Second operand 6 states. [2018-11-18 15:55:36,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:36,302 INFO L93 Difference]: Finished difference Result 2252 states and 2548 transitions. [2018-11-18 15:55:36,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:55:36,303 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 260 [2018-11-18 15:55:36,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:36,305 INFO L225 Difference]: With dead ends: 2252 [2018-11-18 15:55:36,305 INFO L226 Difference]: Without dead ends: 1202 [2018-11-18 15:55:36,307 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 260 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:55:36,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2018-11-18 15:55:36,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1200. [2018-11-18 15:55:36,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1200 states. [2018-11-18 15:55:36,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 1340 transitions. [2018-11-18 15:55:36,322 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 1340 transitions. Word has length 260 [2018-11-18 15:55:36,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:36,322 INFO L480 AbstractCegarLoop]: Abstraction has 1200 states and 1340 transitions. [2018-11-18 15:55:36,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:55:36,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 1340 transitions. [2018-11-18 15:55:36,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-11-18 15:55:36,325 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:36,326 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, 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, 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] [2018-11-18 15:55:36,326 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:36,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:36,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1863027052, now seen corresponding path program 1 times [2018-11-18 15:55:36,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:55:36,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:36,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:36,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:36,327 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:55:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:36,476 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 8 proven. 43 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-18 15:55:36,476 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:55:36,476 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:55:36,476 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 283 with the following transitions: [2018-11-18 15:55:36,477 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [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], [655], [659], [663], [667], [671], [675], [678], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 15:55:36,481 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:55:36,481 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:55:36,679 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:55:36,680 INFO L272 AbstractInterpreter]: Visited 146 different actions 428 times. Merged at 7 different actions 14 times. Never widened. Performed 4668 root evaluator evaluations with a maximum evaluation depth of 13. Performed 4668 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 15:55:36,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:36,690 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:55:36,690 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:55:36,690 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/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 15:55:36,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:36,707 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:55:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:36,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:36,802 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-11-18 15:55:36,802 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:55:36,882 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-11-18 15:55:36,898 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:55:36,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 11 [2018-11-18 15:55:36,899 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:55:36,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:55:36,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:55:36,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:55:36,900 INFO L87 Difference]: Start difference. First operand 1200 states and 1340 transitions. Second operand 3 states. [2018-11-18 15:55:37,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:37,177 INFO L93 Difference]: Finished difference Result 2831 states and 3167 transitions. [2018-11-18 15:55:37,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:55:37,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2018-11-18 15:55:37,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:37,183 INFO L225 Difference]: With dead ends: 2831 [2018-11-18 15:55:37,183 INFO L226 Difference]: Without dead ends: 1634 [2018-11-18 15:55:37,184 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 565 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:55:37,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2018-11-18 15:55:37,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1490. [2018-11-18 15:55:37,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2018-11-18 15:55:37,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1644 transitions. [2018-11-18 15:55:37,202 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1644 transitions. Word has length 282 [2018-11-18 15:55:37,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:37,202 INFO L480 AbstractCegarLoop]: Abstraction has 1490 states and 1644 transitions. [2018-11-18 15:55:37,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:55:37,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1644 transitions. [2018-11-18 15:55:37,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-11-18 15:55:37,205 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:37,205 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:37,205 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:37,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:37,206 INFO L82 PathProgramCache]: Analyzing trace with hash -827909397, now seen corresponding path program 1 times [2018-11-18 15:55:37,206 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:55:37,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:37,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:37,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:37,207 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:55:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:37,490 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 144 proven. 140 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 15:55:37,490 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:55:37,490 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:55:37,490 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 293 with the following transitions: [2018-11-18 15:55:37,491 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [510], [511], [515], [519], [523], [527], [531], [535], [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], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 15:55:37,493 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:55:37,493 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:55:37,665 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:55:37,665 INFO L272 AbstractInterpreter]: Visited 126 different actions 378 times. Merged at 8 different actions 24 times. Never widened. Performed 3941 root evaluator evaluations with a maximum evaluation depth of 15. Performed 3941 inverse root evaluator evaluations with a maximum inverse evaluation depth of 15. Found 4 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 15:55:37,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:37,678 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:55:37,678 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:55:37,678 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/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 15:55:37,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:37,695 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:55:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:37,750 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:37,864 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 214 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-18 15:55:37,864 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:55:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 214 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-18 15:55:38,205 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 15:55:38,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 18 [2018-11-18 15:55:38,206 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 15:55:38,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 15:55:38,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 15:55:38,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2018-11-18 15:55:38,208 INFO L87 Difference]: Start difference. First operand 1490 states and 1644 transitions. Second operand 16 states. [2018-11-18 15:55:41,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:41,856 INFO L93 Difference]: Finished difference Result 4514 states and 5369 transitions. [2018-11-18 15:55:41,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-11-18 15:55:41,857 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 292 [2018-11-18 15:55:41,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:41,864 INFO L225 Difference]: With dead ends: 4514 [2018-11-18 15:55:41,864 INFO L226 Difference]: Without dead ends: 3027 [2018-11-18 15:55:41,869 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 614 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=749, Invalid=3541, Unknown=0, NotChecked=0, Total=4290 [2018-11-18 15:55:41,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2018-11-18 15:55:41,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 2803. [2018-11-18 15:55:41,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2803 states. [2018-11-18 15:55:41,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 3157 transitions. [2018-11-18 15:55:41,915 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 3157 transitions. Word has length 292 [2018-11-18 15:55:41,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:41,916 INFO L480 AbstractCegarLoop]: Abstraction has 2803 states and 3157 transitions. [2018-11-18 15:55:41,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 15:55:41,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 3157 transitions. [2018-11-18 15:55:41,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-11-18 15:55:41,920 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:41,920 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:55:41,921 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:41,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:41,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1133583438, now seen corresponding path program 1 times [2018-11-18 15:55:41,921 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:55:41,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:41,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:41,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:41,922 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:55:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:42,243 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 219 proven. 77 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 15:55:42,244 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:55:42,244 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:55:42,244 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 306 with the following transitions: [2018-11-18 15:55:42,244 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [558], [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], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 15:55:42,246 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:55:42,246 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:55:42,542 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:55:42,542 INFO L272 AbstractInterpreter]: Visited 126 different actions 375 times. Merged at 8 different actions 21 times. Never widened. Performed 3904 root evaluator evaluations with a maximum evaluation depth of 18. Performed 3904 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 4 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 15:55:42,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:42,558 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:55:42,558 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:55:42,558 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/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 15:55:42,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:42,569 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:55:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:42,630 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:42,921 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-11-18 15:55:42,921 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:55:43,033 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-11-18 15:55:43,058 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:55:43,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [12] total 14 [2018-11-18 15:55:43,058 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:55:43,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:55:43,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:55:43,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-11-18 15:55:43,059 INFO L87 Difference]: Start difference. First operand 2803 states and 3157 transitions. Second operand 3 states. [2018-11-18 15:55:47,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:47,405 INFO L93 Difference]: Finished difference Result 6191 states and 7086 transitions. [2018-11-18 15:55:47,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:55:47,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 305 [2018-11-18 15:55:47,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:47,406 INFO L225 Difference]: With dead ends: 6191 [2018-11-18 15:55:47,406 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:55:47,416 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 608 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-11-18 15:55:47,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:55:47,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:55:47,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:55:47,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:55:47,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2018-11-18 15:55:47,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:47,417 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:55:47,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:55:47,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:55:47,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:55:47,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:55:47,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,540 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,622 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 150 [2018-11-18 15:55:47,627 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,678 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:55:47,731 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 152 [2018-11-18 15:55:48,548 WARN L180 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 64 [2018-11-18 15:55:48,952 WARN L180 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 55 [2018-11-18 15:55:51,387 WARN L180 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 163 DAG size of output: 55 [2018-11-18 15:55:51,388 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:55:51,389 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a19~0)| ~a19~0) (= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|)) [2018-11-18 15:55:51,389 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:55:51,389 INFO L425 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-11-18 15:55:51,389 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,389 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,389 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,389 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,389 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,389 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,389 INFO L425 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-11-18 15:55:51,389 INFO L425 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 15:55:51,390 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-11-18 15:55:51,391 INFO L425 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-11-18 15:55:51,392 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-11-18 15:55:51,393 INFO L425 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,394 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,395 INFO L425 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse9 (= |old(~a19~0)| ~a19~0)) (.cse10 (= |old(~a10~0)| ~a10~0))) (let ((.cse2 (= 10 |old(~a19~0)|)) (.cse8 (and .cse9 .cse10)) (.cse7 (= 2 |old(~a10~0)|)) (.cse6 (= 8 |old(~a19~0)|)) (.cse5 (forall ((v_prenex_8 Int)) (let ((.cse12 (* 9 v_prenex_8))) (let ((.cse11 (div .cse12 10))) (or (< .cse11 0) (< .cse12 0) (< (+ (mod .cse11 25) 12) |old(~a1~0)|)))))) (.cse0 (= 4 |old(~a10~0)|)) (.cse4 (< 8 |old(~a19~0)|)) (.cse1 (and .cse9 .cse10 (= ~a1~0 |old(~a1~0)|))) (.cse3 (= 1 |old(~a10~0)|))) (and (or (< |old(~a10~0)| 1) .cse0 .cse1 (< |old(~a1~0)| 219) .cse2 .cse3) (or .cse0 (< 0 (+ |old(~a1~0)| 437977)) .cse4 (<= (+ ~a1~0 437977) 0) .cse3) (or .cse5 (or .cse2 .cse6) .cse1) (or (or .cse2 .cse7 .cse6) .cse1) (or .cse4 .cse8 .cse6) (or .cse4 .cse7 .cse8) (or .cse1 (or .cse0 .cse7 .cse6)) (or .cse5 .cse0 .cse4 .cse1 (= 0 |old(~a10~0)|) .cse3)))) [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 15:55:51,396 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 15:55:51,397 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 9) (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14)) [2018-11-18 15:55:51,398 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:55:51,398 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:55:51,398 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 14 ~a4~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (and (= |old(~a19~0)| ~a19~0) (= ~a1~0 23) (= |old(~a10~0)| ~a10~0)) (not (= 23 |old(~a1~0)|)) (not (= 0 |old(~a10~0)|))) [2018-11-18 15:55:51,399 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-11-18 15:55:51,399 INFO L421 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (not (= ~a19~0 10))) (.cse3 (not (= 2 ~a10~0)))) (or (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (not (= 0 |old(~a10~0)|)) (and (< 218 ~a1~0) .cse0) (and .cse0 (exists ((v_prenex_8 Int)) (let ((.cse2 (* 9 v_prenex_8))) (let ((.cse1 (div .cse2 10))) (and (<= ~a1~0 (+ (mod .cse1 25) 12)) (<= 0 .cse2) (<= 0 .cse1)))))) (not (= 9 |old(~a19~0)|)) (and .cse0 .cse3) (not (= 14 ~a4~0)) (and (<= ~a19~0 8) (not (= ~a19~0 8))) (and (not (= ~a10~0 4)) .cse3))) [2018-11-18 15:55:51,399 INFO L425 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-11-18 15:55:51,399 INFO L425 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-11-18 15:55:51,399 INFO L425 ceAbstractionStarter]: For program point L582-1(lines 582 591) no Hoare annotation was computed. [2018-11-18 15:55:51,399 INFO L421 ceAbstractionStarter]: At program point L582-3(lines 582 591) the Hoare annotation is: (let ((.cse0 (not (= ~a19~0 10))) (.cse3 (not (= 2 ~a10~0)))) (or (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (not (= 0 |old(~a10~0)|)) (and (< 218 ~a1~0) .cse0) (and .cse0 (exists ((v_prenex_8 Int)) (let ((.cse2 (* 9 v_prenex_8))) (let ((.cse1 (div .cse2 10))) (and (<= ~a1~0 (+ (mod .cse1 25) 12)) (<= 0 .cse2) (<= 0 .cse1)))))) (not (= 9 |old(~a19~0)|)) (and .cse0 .cse3) (not (= 14 ~a4~0)) (and (<= ~a19~0 8) (not (= ~a19~0 8))) (and (not (= ~a10~0 4)) .cse3))) [2018-11-18 15:55:51,399 INFO L425 ceAbstractionStarter]: For program point L582-4(lines 576 592) no Hoare annotation was computed. [2018-11-18 15:55:51,403 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 15:55:51,404 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 15:55:51,404 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 15:55:51,408 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 15:55:51,408 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 15:55:51,408 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 15:55:51,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:55:51 BoogieIcfgContainer [2018-11-18 15:55:51,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:55:51,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:55:51,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:55:51,411 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:55:51,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:55:20" (3/4) ... [2018-11-18 15:55:51,418 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:55:51,423 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:55:51,423 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 15:55:51,423 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:55:51,432 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 15:55:51,433 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 15:55:51,456 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(23 == \old(a1)) || !(0 == a12)) || !(0 == \old(a10))) || (218 < a1 && !(a19 == 10))) || (!(a19 == 10) && (\exists v_prenex_8 : int :: (a1 <= 9 * v_prenex_8 / 10 % 25 + 12 && 0 <= 9 * v_prenex_8) && 0 <= 9 * v_prenex_8 / 10))) || !(9 == \old(a19))) || (!(a19 == 10) && !(2 == a10))) || !(14 == a4)) || (a19 <= 8 && !(a19 == 8))) || (!(a10 == 4) && !(2 == a10)) [2018-11-18 15:55:51,525 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_89c88dd3-3c47-4da9-87c8-4c8fc09a51cd/bin-2019/utaipan/witness.graphml [2018-11-18 15:55:51,525 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:55:51,526 INFO L168 Benchmark]: Toolchain (without parser) took 32731.71 ms. Allocated memory was 1.0 GB in the beginning and 3.0 GB in the end (delta: 1.9 GB). Free memory was 955.4 MB in the beginning and 1.7 GB in the end (delta: -722.6 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-11-18 15:55:51,527 INFO L168 Benchmark]: CDTParser took 0.16 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 15:55:51,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.21 ms. Allocated memory is still 1.0 GB. Free memory was 955.4 MB in the beginning and 920.5 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:51,527 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 917.8 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:51,527 INFO L168 Benchmark]: Boogie Preprocessor took 48.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:51,528 INFO L168 Benchmark]: RCFGBuilder took 902.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 987.1 MB in the end (delta: 108.5 MB). Peak memory consumption was 108.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:51,528 INFO L168 Benchmark]: TraceAbstraction took 31219.81 ms. Allocated memory was 1.1 GB in the beginning and 3.0 GB in the end (delta: 1.8 GB). Free memory was 987.1 MB in the beginning and 1.7 GB in the end (delta: -731.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-11-18 15:55:51,528 INFO L168 Benchmark]: Witness Printer took 114.84 ms. Allocated memory is still 3.0 GB. Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:51,530 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 363.21 ms. Allocated memory is still 1.0 GB. Free memory was 955.4 MB in the beginning and 920.5 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 917.8 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 902.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 987.1 MB in the end (delta: 108.5 MB). Peak memory consumption was 108.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 31219.81 ms. Allocated memory was 1.1 GB in the beginning and 3.0 GB in the end (delta: 1.8 GB). Free memory was 987.1 MB in the beginning and 1.7 GB in the end (delta: -731.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. * Witness Printer took 114.84 ms. Allocated memory is still 3.0 GB. Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 70]: 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: 582]: Loop Invariant [2018-11-18 15:55:51,533 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 15:55:51,533 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 15:55:51,533 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 15:55:51,535 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 15:55:51,535 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 15:55:51,535 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] Derived loop invariant: ((((((((!(23 == \old(a1)) || !(0 == a12)) || !(0 == \old(a10))) || (218 < a1 && !(a19 == 10))) || (!(a19 == 10) && (\exists v_prenex_8 : int :: (a1 <= 9 * v_prenex_8 / 10 % 25 + 12 && 0 <= 9 * v_prenex_8) && 0 <= 9 * v_prenex_8 / 10))) || !(9 == \old(a19))) || (!(a19 == 10) && !(2 == a10))) || !(14 == a4)) || (a19 <= 8 && !(a19 == 8))) || (!(a10 == 4) && !(2 == a10)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. SAFE Result, 31.1s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 21.6s AutomataDifference, 0.0s DeadEndRemovalTime, 3.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 995 SDtfs, 8983 SDslu, 1161 SDs, 0 SdLazy, 14445 SolverSat, 2579 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 17.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 2703 GetRequests, 2549 SyntacticMatches, 17 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1452 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2803occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.2s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9978263049691625 AbsIntWeakeningRatio, 0.10038610038610038 AbsIntAvgWeakeningVarsNumRemoved, 15.428571428571429 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 881 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 138 PreInvPairs, 240 NumberOfFragments, 449 HoareAnnotationTreeSize, 138 FomulaSimplifications, 7992 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8036 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 3089 NumberOfCodeBlocks, 3089 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4196 ConstructedInterpolants, 25 QuantifiedInterpolants, 5309321 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1899 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 18 InterpolantComputations, 9 PerfectInterpolantSequences, 2542/2830 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...