./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label31_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label31_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/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 ec451dfa87bae03634c3df96f95bbd4db2c274c1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 15:45:15,640 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 15:45:15,641 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 15:45:15,647 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 15:45:15,647 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 15:45:15,648 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 15:45:15,649 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 15:45:15,649 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 15:45:15,650 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 15:45:15,651 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 15:45:15,651 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 15:45:15,651 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 15:45:15,652 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 15:45:15,652 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 15:45:15,653 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 15:45:15,653 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 15:45:15,653 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 15:45:15,654 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 15:45:15,655 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 15:45:15,656 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 15:45:15,657 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 15:45:15,657 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 15:45:15,658 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 15:45:15,659 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 15:45:15,659 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 15:45:15,659 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 15:45:15,660 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 15:45:15,660 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 15:45:15,661 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 15:45:15,661 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 15:45:15,661 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 15:45:15,662 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 15:45:15,662 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 15:45:15,662 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 15:45:15,662 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 15:45:15,663 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 15:45:15,663 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 15:45:15,671 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 15:45:15,671 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 15:45:15,671 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 15:45:15,671 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 15:45:15,671 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 15:45:15,672 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 15:45:15,672 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 15:45:15,672 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 15:45:15,672 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 15:45:15,672 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 15:45:15,672 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 15:45:15,672 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 15:45:15,672 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 15:45:15,673 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 15:45:15,673 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 15:45:15,673 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 15:45:15,673 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 15:45:15,673 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 15:45:15,673 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 15:45:15,673 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 15:45:15,673 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 15:45:15,673 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 15:45:15,673 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 15:45:15,673 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 15:45:15,674 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 15:45:15,674 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 15:45:15,674 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 15:45:15,674 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 15:45:15,674 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 15:45:15,674 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 15:45:15,674 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 15:45:15,674 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 15:45:15,674 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 15:45:15,674 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 15:45:15,674 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 15:45:15,674 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 15:45:15,675 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_93987980-5f10-44a1-8956-efc58a119ced/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 -> ec451dfa87bae03634c3df96f95bbd4db2c274c1 [2018-12-08 15:45:15,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 15:45:15,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 15:45:15,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 15:45:15,702 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 15:45:15,703 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 15:45:15,703 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label31_true-unreach-call_false-termination.c [2018-12-08 15:45:15,739 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/bin-2019/utaipan/data/c9262e501/919bea3954144d2f94db72c8e81ef7f6/FLAG90bcd55d4 [2018-12-08 15:45:16,195 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 15:45:16,195 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/sv-benchmarks/c/eca-rers2012/Problem02_label31_true-unreach-call_false-termination.c [2018-12-08 15:45:16,203 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/bin-2019/utaipan/data/c9262e501/919bea3954144d2f94db72c8e81ef7f6/FLAG90bcd55d4 [2018-12-08 15:45:16,215 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/bin-2019/utaipan/data/c9262e501/919bea3954144d2f94db72c8e81ef7f6 [2018-12-08 15:45:16,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 15:45:16,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 15:45:16,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 15:45:16,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 15:45:16,222 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 15:45:16,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:45:16" (1/1) ... [2018-12-08 15:45:16,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2caf47c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:16, skipping insertion in model container [2018-12-08 15:45:16,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:45:16" (1/1) ... [2018-12-08 15:45:16,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 15:45:16,262 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 15:45:16,466 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:45:16,469 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 15:45:16,556 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:45:16,565 INFO L195 MainTranslator]: Completed translation [2018-12-08 15:45:16,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:16 WrapperNode [2018-12-08 15:45:16,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 15:45:16,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 15:45:16,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 15:45:16,566 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 15:45:16,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:16" (1/1) ... [2018-12-08 15:45:16,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:16" (1/1) ... [2018-12-08 15:45:16,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 15:45:16,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 15:45:16,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 15:45:16,585 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 15:45:16,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:16" (1/1) ... [2018-12-08 15:45:16,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:16" (1/1) ... [2018-12-08 15:45:16,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:16" (1/1) ... [2018-12-08 15:45:16,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:16" (1/1) ... [2018-12-08 15:45:16,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:16" (1/1) ... [2018-12-08 15:45:16,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:16" (1/1) ... [2018-12-08 15:45:16,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:16" (1/1) ... [2018-12-08 15:45:16,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 15:45:16,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 15:45:16,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 15:45:16,620 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 15:45:16,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/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 [2018-12-08 15:45:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 15:45:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 15:45:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-08 15:45:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-08 15:45:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 15:45:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 15:45:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 15:45:16,655 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 15:45:17,194 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 15:45:17,194 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 15:45:17,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:45:17 BoogieIcfgContainer [2018-12-08 15:45:17,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 15:45:17,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 15:45:17,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 15:45:17,197 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 15:45:17,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:45:16" (1/3) ... [2018-12-08 15:45:17,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3461c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:45:17, skipping insertion in model container [2018-12-08 15:45:17,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:16" (2/3) ... [2018-12-08 15:45:17,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3461c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:45:17, skipping insertion in model container [2018-12-08 15:45:17,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:45:17" (3/3) ... [2018-12-08 15:45:17,200 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label31_true-unreach-call_false-termination.c [2018-12-08 15:45:17,208 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 15:45:17,214 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 15:45:17,225 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 15:45:17,248 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 15:45:17,248 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 15:45:17,248 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 15:45:17,248 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 15:45:17,249 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 15:45:17,249 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 15:45:17,249 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 15:45:17,249 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 15:45:17,267 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2018-12-08 15:45:17,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-12-08 15:45:17,275 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:17,276 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:45:17,278 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:17,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:17,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1634450302, now seen corresponding path program 1 times [2018-12-08 15:45:17,283 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:45:17,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:17,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:17,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:17,312 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:45:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:17,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:45:17,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:45:17,560 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 15:45:17,560 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:45:17,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:45:17,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:45:17,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:45:17,573 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2018-12-08 15:45:18,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:45:18,000 INFO L93 Difference]: Finished difference Result 623 states and 1065 transitions. [2018-12-08 15:45:18,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:45:18,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2018-12-08 15:45:18,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:45:18,009 INFO L225 Difference]: With dead ends: 623 [2018-12-08 15:45:18,009 INFO L226 Difference]: Without dead ends: 325 [2018-12-08 15:45:18,012 INFO L631 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 [2018-12-08 15:45:18,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2018-12-08 15:45:18,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 321. [2018-12-08 15:45:18,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2018-12-08 15:45:18,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 473 transitions. [2018-12-08 15:45:18,048 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 473 transitions. Word has length 122 [2018-12-08 15:45:18,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:45:18,048 INFO L480 AbstractCegarLoop]: Abstraction has 321 states and 473 transitions. [2018-12-08 15:45:18,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:45:18,048 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 473 transitions. [2018-12-08 15:45:18,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-12-08 15:45:18,050 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:18,051 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-08 15:45:18,051 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:18,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:18,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1584907331, now seen corresponding path program 1 times [2018-12-08 15:45:18,051 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:45:18,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:18,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:18,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:18,052 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:45:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:18,118 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:45:18,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:45:18,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 15:45:18,118 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:45:18,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 15:45:18,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 15:45:18,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 15:45:18,120 INFO L87 Difference]: Start difference. First operand 321 states and 473 transitions. Second operand 6 states. [2018-12-08 15:45:18,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:45:18,521 INFO L93 Difference]: Finished difference Result 955 states and 1447 transitions. [2018-12-08 15:45:18,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 15:45:18,522 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-12-08 15:45:18,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:45:18,525 INFO L225 Difference]: With dead ends: 955 [2018-12-08 15:45:18,525 INFO L226 Difference]: Without dead ends: 640 [2018-12-08 15:45:18,526 INFO L631 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 [2018-12-08 15:45:18,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2018-12-08 15:45:18,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 623. [2018-12-08 15:45:18,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2018-12-08 15:45:18,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 902 transitions. [2018-12-08 15:45:18,548 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 902 transitions. Word has length 142 [2018-12-08 15:45:18,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:45:18,548 INFO L480 AbstractCegarLoop]: Abstraction has 623 states and 902 transitions. [2018-12-08 15:45:18,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 15:45:18,548 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 902 transitions. [2018-12-08 15:45:18,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-12-08 15:45:18,550 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:18,550 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-12-08 15:45:18,551 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:18,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:18,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2015790622, now seen corresponding path program 1 times [2018-12-08 15:45:18,551 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:45:18,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:18,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:18,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:18,552 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:45:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:18,604 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:45:18,605 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:45:18,605 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:45:18,605 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2018-12-08 15:45:18,606 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [45], [50], [52], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-08 15:45:18,631 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:45:18,631 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:45:18,885 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 15:45:18,886 INFO L272 AbstractInterpreter]: Visited 123 different actions 123 times. Never merged. Never widened. Performed 1364 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1364 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 38 variables. [2018-12-08 15:45:18,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:18,901 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 15:45:19,121 INFO L227 lantSequenceWeakener]: Weakened 139 states. On average, predicates are now at 81.03% of their original sizes. [2018-12-08 15:45:19,121 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 15:45:19,144 INFO L418 sIntCurrentIteration]: We unified 149 AI predicates to 149 [2018-12-08 15:45:19,144 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 15:45:19,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 15:45:19,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-12-08 15:45:19,145 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:45:19,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 15:45:19,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 15:45:19,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 15:45:19,146 INFO L87 Difference]: Start difference. First operand 623 states and 902 transitions. Second operand 6 states. [2018-12-08 15:45:20,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:45:20,237 INFO L93 Difference]: Finished difference Result 1388 states and 2011 transitions. [2018-12-08 15:45:20,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 15:45:20,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2018-12-08 15:45:20,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:45:20,239 INFO L225 Difference]: With dead ends: 1388 [2018-12-08 15:45:20,239 INFO L226 Difference]: Without dead ends: 771 [2018-12-08 15:45:20,240 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 150 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-08 15:45:20,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2018-12-08 15:45:20,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 769. [2018-12-08 15:45:20,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2018-12-08 15:45:20,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1059 transitions. [2018-12-08 15:45:20,254 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1059 transitions. Word has length 150 [2018-12-08 15:45:20,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:45:20,254 INFO L480 AbstractCegarLoop]: Abstraction has 769 states and 1059 transitions. [2018-12-08 15:45:20,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 15:45:20,254 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1059 transitions. [2018-12-08 15:45:20,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-12-08 15:45:20,256 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:20,256 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-08 15:45:20,256 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:20,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:20,257 INFO L82 PathProgramCache]: Analyzing trace with hash 298429420, now seen corresponding path program 1 times [2018-12-08 15:45:20,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:45:20,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:20,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:20,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:20,257 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:45:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:20,310 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:45:20,310 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:45:20,310 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:45:20,310 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-12-08 15:45:20,311 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [45], [50], [52], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-08 15:45:20,313 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:45:20,313 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:45:20,463 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 15:45:20,463 INFO L272 AbstractInterpreter]: Visited 126 different actions 246 times. Merged at 4 different actions 4 times. Never widened. Performed 2763 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2763 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-12-08 15:45:20,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:20,469 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 15:45:20,632 INFO L227 lantSequenceWeakener]: Weakened 150 states. On average, predicates are now at 82.67% of their original sizes. [2018-12-08 15:45:20,632 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 15:45:20,669 INFO L418 sIntCurrentIteration]: We unified 154 AI predicates to 154 [2018-12-08 15:45:20,669 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 15:45:20,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 15:45:20,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-08 15:45:20,670 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:45:20,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 15:45:20,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 15:45:20,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 15:45:20,670 INFO L87 Difference]: Start difference. First operand 769 states and 1059 transitions. Second operand 10 states. [2018-12-08 15:45:24,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:45:24,279 INFO L93 Difference]: Finished difference Result 2133 states and 3037 transitions. [2018-12-08 15:45:24,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-08 15:45:24,280 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 155 [2018-12-08 15:45:24,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:45:24,292 INFO L225 Difference]: With dead ends: 2133 [2018-12-08 15:45:24,293 INFO L226 Difference]: Without dead ends: 1370 [2018-12-08 15:45:24,296 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 164 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-12-08 15:45:24,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2018-12-08 15:45:24,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1363. [2018-12-08 15:45:24,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1363 states. [2018-12-08 15:45:24,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1785 transitions. [2018-12-08 15:45:24,325 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1785 transitions. Word has length 155 [2018-12-08 15:45:24,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:45:24,325 INFO L480 AbstractCegarLoop]: Abstraction has 1363 states and 1785 transitions. [2018-12-08 15:45:24,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 15:45:24,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1785 transitions. [2018-12-08 15:45:24,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-12-08 15:45:24,327 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:24,327 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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] [2018-12-08 15:45:24,327 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:24,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:24,328 INFO L82 PathProgramCache]: Analyzing trace with hash -324564913, now seen corresponding path program 1 times [2018-12-08 15:45:24,328 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:45:24,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:24,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:24,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:24,328 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:45:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 31 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 15:45:24,393 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:45:24,393 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:45:24,393 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 160 with the following transitions: [2018-12-08 15:45:24,394 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [45], [50], [52], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-08 15:45:24,396 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:45:24,396 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:45:24,530 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 15:45:24,530 INFO L272 AbstractInterpreter]: Visited 127 different actions 374 times. Merged at 6 different actions 13 times. Never widened. Performed 4225 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4225 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-12-08 15:45:24,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:24,532 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 15:45:24,634 INFO L227 lantSequenceWeakener]: Weakened 154 states. On average, predicates are now at 84.55% of their original sizes. [2018-12-08 15:45:24,635 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 15:45:24,680 INFO L418 sIntCurrentIteration]: We unified 158 AI predicates to 158 [2018-12-08 15:45:24,681 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 15:45:24,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 15:45:24,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2018-12-08 15:45:24,681 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:45:24,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 15:45:24,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 15:45:24,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-08 15:45:24,681 INFO L87 Difference]: Start difference. First operand 1363 states and 1785 transitions. Second operand 9 states. [2018-12-08 15:45:26,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:45:26,534 INFO L93 Difference]: Finished difference Result 3206 states and 4328 transitions. [2018-12-08 15:45:26,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-08 15:45:26,534 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 159 [2018-12-08 15:45:26,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:45:26,538 INFO L225 Difference]: With dead ends: 3206 [2018-12-08 15:45:26,538 INFO L226 Difference]: Without dead ends: 1849 [2018-12-08 15:45:26,539 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 166 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-12-08 15:45:26,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2018-12-08 15:45:26,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1821. [2018-12-08 15:45:26,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1821 states. [2018-12-08 15:45:26,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2374 transitions. [2018-12-08 15:45:26,563 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2374 transitions. Word has length 159 [2018-12-08 15:45:26,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:45:26,564 INFO L480 AbstractCegarLoop]: Abstraction has 1821 states and 2374 transitions. [2018-12-08 15:45:26,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 15:45:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2374 transitions. [2018-12-08 15:45:26,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-12-08 15:45:26,566 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:26,567 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:45:26,567 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:26,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:26,567 INFO L82 PathProgramCache]: Analyzing trace with hash -88947608, now seen corresponding path program 1 times [2018-12-08 15:45:26,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:45:26,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:26,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:26,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:26,568 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:45:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:26,634 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 64 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-08 15:45:26,634 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:45:26,634 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:45:26,634 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 187 with the following transitions: [2018-12-08 15:45:26,634 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [45], [50], [52], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-08 15:45:26,636 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:45:26,636 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:45:26,770 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 15:45:26,770 INFO L272 AbstractInterpreter]: Visited 127 different actions 374 times. Merged at 6 different actions 13 times. Never widened. Performed 4284 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4284 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-12-08 15:45:26,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:26,771 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 15:45:26,888 INFO L227 lantSequenceWeakener]: Weakened 181 states. On average, predicates are now at 84.6% of their original sizes. [2018-12-08 15:45:26,888 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 15:45:26,920 INFO L418 sIntCurrentIteration]: We unified 185 AI predicates to 185 [2018-12-08 15:45:26,920 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 15:45:26,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 15:45:26,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-12-08 15:45:26,921 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:45:26,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 15:45:26,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 15:45:26,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-08 15:45:26,921 INFO L87 Difference]: Start difference. First operand 1821 states and 2374 transitions. Second operand 9 states. [2018-12-08 15:45:29,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:45:29,568 INFO L93 Difference]: Finished difference Result 4294 states and 5775 transitions. [2018-12-08 15:45:29,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-08 15:45:29,568 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 186 [2018-12-08 15:45:29,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:45:29,574 INFO L225 Difference]: With dead ends: 4294 [2018-12-08 15:45:29,574 INFO L226 Difference]: Without dead ends: 2479 [2018-12-08 15:45:29,577 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 193 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-12-08 15:45:29,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2018-12-08 15:45:29,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2438. [2018-12-08 15:45:29,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2438 states. [2018-12-08 15:45:29,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 3220 transitions. [2018-12-08 15:45:29,613 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 3220 transitions. Word has length 186 [2018-12-08 15:45:29,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:45:29,613 INFO L480 AbstractCegarLoop]: Abstraction has 2438 states and 3220 transitions. [2018-12-08 15:45:29,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 15:45:29,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 3220 transitions. [2018-12-08 15:45:29,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-12-08 15:45:29,616 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:29,617 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-12-08 15:45:29,617 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:29,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:29,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1778531771, now seen corresponding path program 1 times [2018-12-08 15:45:29,617 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:45:29,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:29,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:29,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:29,618 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:45:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:29,677 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 101 proven. 18 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-12-08 15:45:29,678 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:45:29,678 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:45:29,678 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2018-12-08 15:45:29,678 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [45], [50], [52], [53], [56], [59], [63], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-08 15:45:29,680 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:45:29,681 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:45:29,851 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 15:45:29,852 INFO L272 AbstractInterpreter]: Visited 132 different actions 383 times. Merged at 7 different actions 15 times. Never widened. Performed 4505 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4505 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 38 variables. [2018-12-08 15:45:29,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:29,853 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 15:45:29,853 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:45:29,853 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/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 [2018-12-08 15:45:29,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:29,860 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 15:45:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:29,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 15:45:29,952 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-12-08 15:45:29,952 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 15:45:30,005 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-12-08 15:45:30,022 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-08 15:45:30,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 8 [2018-12-08 15:45:30,022 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:45:30,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:45:30,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:45:30,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-12-08 15:45:30,023 INFO L87 Difference]: Start difference. First operand 2438 states and 3220 transitions. Second operand 3 states. [2018-12-08 15:45:30,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:45:30,295 INFO L93 Difference]: Finished difference Result 5609 states and 7560 transitions. [2018-12-08 15:45:30,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:45:30,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2018-12-08 15:45:30,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:45:30,301 INFO L225 Difference]: With dead ends: 5609 [2018-12-08 15:45:30,301 INFO L226 Difference]: Without dead ends: 3177 [2018-12-08 15:45:30,304 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-12-08 15:45:30,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2018-12-08 15:45:30,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 3173. [2018-12-08 15:45:30,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3173 states. [2018-12-08 15:45:30,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3173 states to 3173 states and 3927 transitions. [2018-12-08 15:45:30,340 INFO L78 Accepts]: Start accepts. Automaton has 3173 states and 3927 transitions. Word has length 198 [2018-12-08 15:45:30,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:45:30,340 INFO L480 AbstractCegarLoop]: Abstraction has 3173 states and 3927 transitions. [2018-12-08 15:45:30,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:45:30,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3173 states and 3927 transitions. [2018-12-08 15:45:30,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-12-08 15:45:30,345 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:30,345 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2018-12-08 15:45:30,345 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:30,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:30,345 INFO L82 PathProgramCache]: Analyzing trace with hash -247336308, now seen corresponding path program 1 times [2018-12-08 15:45:30,345 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:45:30,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:30,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:30,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:30,346 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:45:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 115 proven. 18 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-12-08 15:45:30,409 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:45:30,409 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:45:30,409 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-12-08 15:45:30,409 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [45], [50], [52], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [107], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-08 15:45:30,411 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:45:30,411 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:45:30,597 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 15:45:30,598 INFO L272 AbstractInterpreter]: Visited 131 different actions 392 times. Merged at 8 different actions 25 times. Widened at 1 different actions 1 times. Performed 4626 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4626 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 5 fixpoints after 3 different actions. Largest state had 38 variables. [2018-12-08 15:45:30,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:30,600 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 15:45:30,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:45:30,600 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/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 [2018-12-08 15:45:30,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:30,605 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 15:45:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:30,662 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 15:45:30,696 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-08 15:45:30,696 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 15:45:30,747 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 115 proven. 18 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-12-08 15:45:30,762 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 15:45:30,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-12-08 15:45:30,762 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 15:45:30,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 15:45:30,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 15:45:30,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-12-08 15:45:30,763 INFO L87 Difference]: Start difference. First operand 3173 states and 3927 transitions. Second operand 9 states. [2018-12-08 15:45:32,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:45:32,201 INFO L93 Difference]: Finished difference Result 10430 states and 13283 transitions. [2018-12-08 15:45:32,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-08 15:45:32,201 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 207 [2018-12-08 15:45:32,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:45:32,209 INFO L225 Difference]: With dead ends: 10430 [2018-12-08 15:45:32,209 INFO L226 Difference]: Without dead ends: 5478 [2018-12-08 15:45:32,216 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 423 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2018-12-08 15:45:32,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5478 states. [2018-12-08 15:45:32,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5478 to 5184. [2018-12-08 15:45:32,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5184 states. [2018-12-08 15:45:32,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 6021 transitions. [2018-12-08 15:45:32,279 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 6021 transitions. Word has length 207 [2018-12-08 15:45:32,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:45:32,280 INFO L480 AbstractCegarLoop]: Abstraction has 5184 states and 6021 transitions. [2018-12-08 15:45:32,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 15:45:32,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 6021 transitions. [2018-12-08 15:45:32,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-12-08 15:45:32,286 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:32,286 INFO L402 BasicCegarLoop]: trace histogram [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, 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] [2018-12-08 15:45:32,286 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:32,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:32,287 INFO L82 PathProgramCache]: Analyzing trace with hash 877116905, now seen corresponding path program 1 times [2018-12-08 15:45:32,287 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:45:32,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:32,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:32,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:32,287 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:45:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:32,352 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-12-08 15:45:32,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:45:32,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 15:45:32,353 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:45:32,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:45:32,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:45:32,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:45:32,354 INFO L87 Difference]: Start difference. First operand 5184 states and 6021 transitions. Second operand 3 states. [2018-12-08 15:45:32,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:45:32,668 INFO L93 Difference]: Finished difference Result 9926 states and 11620 transitions. [2018-12-08 15:45:32,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:45:32,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2018-12-08 15:45:32,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:45:32,669 INFO L225 Difference]: With dead ends: 9926 [2018-12-08 15:45:32,669 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 15:45:32,675 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:45:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 15:45:32,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 15:45:32,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 15:45:32,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 15:45:32,676 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 235 [2018-12-08 15:45:32,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:45:32,676 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 15:45:32,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:45:32,676 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 15:45:32,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 15:45:32,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 15:45:32,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:45:32,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:45:32,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:45:32,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:45:32,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:45:32,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:45:32,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:45:32,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:45:32,774 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:45:32,776 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:45:32,792 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:45:33,279 WARN L180 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 71 [2018-12-08 15:45:33,421 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 15:45:33,421 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= |old(~a25~0)| ~a25~0)) [2018-12-08 15:45:33,421 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 15:45:33,421 INFO L448 ceAbstractionStarter]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,421 INFO L448 ceAbstractionStarter]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L565(line 565) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L532(line 532) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L499(line 499) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L433(line 433) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 210) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2018-12-08 15:45:33,422 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L568(line 568) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L535(line 535) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L502(line 502) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L469(line 469) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L436(line 436) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 246) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2018-12-08 15:45:33,423 INFO L448 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L338(lines 338 347) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 80) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L571(line 571) no Hoare annotation was computed. [2018-12-08 15:45:33,424 INFO L448 ceAbstractionStarter]: For program point L538(line 538) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L505(line 505) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L472(line 472) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L574(line 574) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L541(line 541) no Hoare annotation was computed. [2018-12-08 15:45:33,425 INFO L448 ceAbstractionStarter]: For program point L508(line 508) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L475(line 475) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L442(line 442) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L511(line 511) no Hoare annotation was computed. [2018-12-08 15:45:33,426 INFO L448 ceAbstractionStarter]: For program point L478(line 478) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L445(line 445) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,427 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 416) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L381(lines 381 387) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 326) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L580(line 580) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L514(line 514) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L481(line 481) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L415(line 415) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2018-12-08 15:45:33,428 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L550(line 550) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L517(line 517) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L451(line 451) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L418(line 418) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2018-12-08 15:45:33,429 INFO L448 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 520) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L553(line 553) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L520(line 520) no Hoare annotation was computed. [2018-12-08 15:45:33,430 INFO L448 ceAbstractionStarter]: For program point L487(line 487) no Hoare annotation was computed. [2018-12-08 15:45:33,431 INFO L448 ceAbstractionStarter]: For program point L454(line 454) no Hoare annotation was computed. [2018-12-08 15:45:33,431 INFO L448 ceAbstractionStarter]: For program point L421(line 421) no Hoare annotation was computed. [2018-12-08 15:45:33,431 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2018-12-08 15:45:33,431 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2018-12-08 15:45:33,431 INFO L448 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2018-12-08 15:45:33,431 INFO L448 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2018-12-08 15:45:33,431 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2018-12-08 15:45:33,431 INFO L448 ceAbstractionStarter]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,431 INFO L448 ceAbstractionStarter]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,431 INFO L448 ceAbstractionStarter]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,431 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse11 (= 8 |old(~a28~0)|)) (.cse14 (<= ~a17~0 |old(~a17~0)|)) (.cse16 (= ~a28~0 8)) (.cse12 (= ~a28~0 7)) (.cse15 (= ~a11~0 |old(~a11~0)|)) (.cse17 (= |old(~a25~0)| ~a25~0)) (.cse6 (not (= ~a28~0 0))) (.cse13 (not (= ~a17~0 0)))) (let ((.cse7 (not (= 8 |old(~a17~0)|))) (.cse4 (= 0 |old(~a28~0)|)) (.cse1 (and .cse6 .cse13)) (.cse8 (= 1 |old(~a25~0)|)) (.cse0 (not (= 1 ~a21~0))) (.cse2 (= 0 |old(~a17~0)|)) (.cse5 (= |calculate_output_#in~input| 0)) (.cse9 (and .cse14 (or .cse16 .cse12) .cse15 .cse17)) (.cse3 (not (= 1 |old(~a19~0)|))) (.cse10 (and (not (= 7 |old(~a28~0)|)) (not .cse11)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (< 7 |old(~a17~0)|)) (or .cse0 .cse3 .cse4 (and .cse6 (= ~a17~0 8)) .cse7 .cse5) (or (or .cse0 (not (= 11 |old(~a28~0)|)) (not .cse8)) .cse3 (not (= 0 |old(~a11~0)|)) .cse7 .cse5 (= ~a28~0 11)) (or .cse0 .cse2 .cse3 .cse4 .cse5 (not (= 1 |old(~a11~0)|)) .cse8 .cse1) (or .cse9 .cse10 .cse8) (or .cse11 .cse12 .cse10) (or .cse0 .cse13 .cse2 .cse3 .cse5 .cse10) (or .cse3 (= 1 ~a19~0)) (or .cse9 .cse3 .cse10) (or .cse11 (and .cse14 .cse15 (not .cse16) .cse17))))) [2018-12-08 15:45:33,431 INFO L448 ceAbstractionStarter]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L589(line 589) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L490(line 490) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L424(line 424) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2018-12-08 15:45:33,432 INFO L448 ceAbstractionStarter]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L592(line 592) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L559(line 559) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L526(line 526) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L493(line 493) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L460(line 460) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L427(line 427) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2018-12-08 15:45:33,433 INFO L448 ceAbstractionStarter]: For program point L262(lines 262 274) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L595(line 595) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L562(line 562) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L529(line 529) no Hoare annotation was computed. [2018-12-08 15:45:33,434 INFO L448 ceAbstractionStarter]: For program point L496(line 496) no Hoare annotation was computed. [2018-12-08 15:45:33,435 INFO L448 ceAbstractionStarter]: For program point L463(line 463) no Hoare annotation was computed. [2018-12-08 15:45:33,435 INFO L448 ceAbstractionStarter]: For program point L430(line 430) no Hoare annotation was computed. [2018-12-08 15:45:33,435 INFO L448 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2018-12-08 15:45:33,435 INFO L448 ceAbstractionStarter]: For program point L298(lines 298 307) no Hoare annotation was computed. [2018-12-08 15:45:33,435 INFO L448 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2018-12-08 15:45:33,435 INFO L448 ceAbstractionStarter]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2018-12-08 15:45:33,435 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2018-12-08 15:45:33,435 INFO L448 ceAbstractionStarter]: For program point L332(lines 332 335) no Hoare annotation was computed. [2018-12-08 15:45:33,435 INFO L448 ceAbstractionStarter]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2018-12-08 15:45:33,435 INFO L448 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2018-12-08 15:45:33,435 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2018-12-08 15:45:33,435 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 15:45:33,435 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a11~0 0) (= ~a25~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7) (= ~a21~0 1)) [2018-12-08 15:45:33,435 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 15:45:33,435 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 15:45:33,436 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 ~a21~0)) (not (= 1 |old(~a19~0)|)) (not (= 0 |old(~a11~0)|)) (not (= 8 |old(~a17~0)|)) (and (= ~a11~0 |old(~a11~0)|) (= |old(~a25~0)| ~a25~0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7)) (not (= 7 |old(~a28~0)|)) (not (= 0 |old(~a25~0)|))) [2018-12-08 15:45:33,436 INFO L444 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 |old(~a17~0)|))) (or (not (= 1 ~a21~0)) (and .cse0 (not (= ~a28~0 8))) (not (= 0 |old(~a11~0)|)) (not (= 1 |old(~a19~0)|)) (and .cse0 (not (= ~a25~0 1))) (and .cse0 (= 1 ~a19~0)) (not (= 8 |old(~a17~0)|)) (not (= 7 |old(~a28~0)|)) (not (= 0 |old(~a25~0)|)))) [2018-12-08 15:45:33,436 INFO L448 ceAbstractionStarter]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2018-12-08 15:45:33,436 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2018-12-08 15:45:33,436 INFO L444 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 |old(~a17~0)|))) (or (not (= 1 ~a21~0)) (and .cse0 (not (= ~a28~0 8))) (not (= 0 |old(~a11~0)|)) (not (= 1 |old(~a19~0)|)) (and .cse0 (not (= ~a25~0 1))) (and .cse0 (= 1 ~a19~0)) (not (= 8 |old(~a17~0)|)) (not (= 7 |old(~a28~0)|)) (not (= 0 |old(~a25~0)|)))) [2018-12-08 15:45:33,436 INFO L448 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2018-12-08 15:45:33,436 INFO L448 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2018-12-08 15:45:33,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:45:33 BoogieIcfgContainer [2018-12-08 15:45:33,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 15:45:33,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 15:45:33,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 15:45:33,445 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 15:45:33,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:45:17" (3/4) ... [2018-12-08 15:45:33,447 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 15:45:33,452 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 15:45:33,452 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-08 15:45:33,452 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 15:45:33,460 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-08 15:45:33,461 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 15:45:33,481 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 == a21) || (a17 <= \old(a17) && !(a28 == 8))) || !(0 == \old(a11))) || !(1 == \old(a19))) || (a17 <= \old(a17) && !(a25 == 1))) || (a17 <= \old(a17) && 1 == a19)) || !(8 == \old(a17))) || !(7 == \old(a28))) || !(0 == \old(a25)) [2018-12-08 15:45:33,531 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_93987980-5f10-44a1-8956-efc58a119ced/bin-2019/utaipan/witness.graphml [2018-12-08 15:45:33,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 15:45:33,532 INFO L168 Benchmark]: Toolchain (without parser) took 17313.98 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 866.6 MB). Free memory was 947.0 MB in the beginning and 1.4 GB in the end (delta: -467.6 MB). Peak memory consumption was 399.0 MB. Max. memory is 11.5 GB. [2018-12-08 15:45:33,532 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:45:33,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2018-12-08 15:45:33,532 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 15:45:33,533 INFO L168 Benchmark]: Boogie Preprocessor took 35.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:45:33,533 INFO L168 Benchmark]: RCFGBuilder took 574.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.9 MB). Peak memory consumption was 104.9 MB. Max. memory is 11.5 GB. [2018-12-08 15:45:33,533 INFO L168 Benchmark]: TraceAbstraction took 16249.16 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 734.0 MB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -422.7 MB). Peak memory consumption was 311.3 MB. Max. memory is 11.5 GB. [2018-12-08 15:45:33,533 INFO L168 Benchmark]: Witness Printer took 86.64 ms. Allocated memory is still 1.9 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-12-08 15:45:33,535 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 346.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 574.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.9 MB). Peak memory consumption was 104.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16249.16 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 734.0 MB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -422.7 MB). Peak memory consumption was 311.3 MB. Max. memory is 11.5 GB. * Witness Printer took 86.64 ms. Allocated memory is still 1.9 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 520]: 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: 606]: Loop Invariant Derived loop invariant: (((((((!(1 == a21) || (a17 <= \old(a17) && !(a28 == 8))) || !(0 == \old(a11))) || !(1 == \old(a19))) || (a17 <= \old(a17) && !(a25 == 1))) || (a17 <= \old(a17) && 1 == a19)) || !(8 == \old(a17))) || !(7 == \old(a28))) || !(0 == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. SAFE Result, 16.1s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 12.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 779 SDtfs, 4739 SDslu, 719 SDs, 0 SdLazy, 7842 SolverSat, 1636 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 1542 GetRequests, 1445 SyntacticMatches, 5 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5184occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.0s AbstIntTime, 6 AbstIntIterations, 4 AbstIntStrong, 0.9969381275234404 AbsIntWeakeningRatio, 0.22910216718266255 AbsIntAvgWeakeningVarsNumRemoved, 25.493808049535605 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 397 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 156 PreInvPairs, 256 NumberOfFragments, 423 HoareAnnotationTreeSize, 156 FomulaSimplifications, 7840 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3340 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1959 NumberOfCodeBlocks, 1959 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2351 ConstructedInterpolants, 0 QuantifiedInterpolants, 720790 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1099 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 1265/1361 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...