./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/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 5f1f3e9c958502587d73771213325403adeeeeae ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 00:03:32,649 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:03:32,650 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:03:32,658 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:03:32,658 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:03:32,658 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:03:32,659 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:03:32,661 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:03:32,662 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:03:32,663 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:03:32,663 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:03:32,664 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:03:32,664 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:03:32,665 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:03:32,666 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:03:32,667 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:03:32,667 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:03:32,669 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:03:32,670 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:03:32,672 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:03:32,672 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:03:32,673 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:03:32,675 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:03:32,676 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:03:32,676 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:03:32,677 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:03:32,677 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:03:32,678 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:03:32,679 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:03:32,680 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:03:32,680 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:03:32,680 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:03:32,680 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:03:32,681 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:03:32,681 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:03:32,682 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:03:32,682 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 00:03:32,693 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:03:32,693 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:03:32,694 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 00:03:32,694 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 00:03:32,694 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 00:03:32,695 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 00:03:32,695 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 00:03:32,695 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 00:03:32,695 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 00:03:32,695 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 00:03:32,695 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 00:03:32,695 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 00:03:32,696 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 00:03:32,696 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:03:32,696 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 00:03:32,697 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 00:03:32,697 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 00:03:32,697 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:03:32,697 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 00:03:32,697 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:03:32,697 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 00:03:32,697 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 00:03:32,698 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:03:32,698 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:03:32,698 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 00:03:32,698 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:03:32,698 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 00:03:32,698 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:03:32,699 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 00:03:32,699 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:03:32,699 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:03:32,699 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:03:32,699 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 00:03:32,699 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 00:03:32,700 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:03:32,700 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 00:03:32,700 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 00:03:32,700 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_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/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 -> 5f1f3e9c958502587d73771213325403adeeeeae [2018-11-23 00:03:32,727 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:03:32,737 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:03:32,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:03:32,742 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:03:32,742 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:03:32,743 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c [2018-11-23 00:03:32,798 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/data/edb7d9d99/ca3e563914b945e7a1ce8af46fbf0ea8/FLAG61c6debd2 [2018-11-23 00:03:33,208 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:03:33,209 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c [2018-11-23 00:03:33,219 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/data/edb7d9d99/ca3e563914b945e7a1ce8af46fbf0ea8/FLAG61c6debd2 [2018-11-23 00:03:33,563 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/data/edb7d9d99/ca3e563914b945e7a1ce8af46fbf0ea8 [2018-11-23 00:03:33,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:03:33,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:03:33,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:03:33,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:03:33,570 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:03:33,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:03:33" (1/1) ... [2018-11-23 00:03:33,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703e8e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:03:33, skipping insertion in model container [2018-11-23 00:03:33,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:03:33" (1/1) ... [2018-11-23 00:03:33,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:03:33,621 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:03:33,873 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:03:33,877 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:03:33,955 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:03:33,969 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:03:33,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:03:33 WrapperNode [2018-11-23 00:03:33,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:03:33,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:03:33,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:03:33,970 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:03:34,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:03:33" (1/1) ... [2018-11-23 00:03:34,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:03:33" (1/1) ... [2018-11-23 00:03:34,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:03:34,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:03:34,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:03:34,057 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:03:34,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:03:33" (1/1) ... [2018-11-23 00:03:34,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:03:33" (1/1) ... [2018-11-23 00:03:34,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:03:33" (1/1) ... [2018-11-23 00:03:34,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:03:33" (1/1) ... [2018-11-23 00:03:34,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:03:33" (1/1) ... [2018-11-23 00:03:34,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:03:33" (1/1) ... [2018-11-23 00:03:34,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:03:33" (1/1) ... [2018-11-23 00:03:34,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:03:34,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:03:34,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:03:34,116 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:03:34,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:03:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:03:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 00:03:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 00:03:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 00:03:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 00:03:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 00:03:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:03:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:03:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 00:03:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 00:03:35,183 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:03:35,184 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 00:03:35,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:03:35 BoogieIcfgContainer [2018-11-23 00:03:35,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:03:35,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 00:03:35,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 00:03:35,188 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 00:03:35,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:03:33" (1/3) ... [2018-11-23 00:03:35,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fe9526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:03:35, skipping insertion in model container [2018-11-23 00:03:35,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:03:33" (2/3) ... [2018-11-23 00:03:35,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fe9526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:03:35, skipping insertion in model container [2018-11-23 00:03:35,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:03:35" (3/3) ... [2018-11-23 00:03:35,192 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label59_true-unreach-call.c [2018-11-23 00:03:35,202 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 00:03:35,210 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 00:03:35,226 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 00:03:35,259 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 00:03:35,259 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 00:03:35,259 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 00:03:35,259 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 00:03:35,260 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 00:03:35,260 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 00:03:35,260 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 00:03:35,260 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 00:03:35,283 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-11-23 00:03:35,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-11-23 00:03:35,291 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:03:35,292 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] [2018-11-23 00:03:35,294 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:03:35,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:03:35,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1400340266, now seen corresponding path program 1 times [2018-11-23 00:03:35,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:03:35,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:35,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:03:35,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:35,352 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:03:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:03:35,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:03:35,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:03:35,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 00:03:35,607 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:03:35,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 00:03:35,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 00:03:35,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:03:35,628 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2018-11-23 00:03:36,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:03:36,637 INFO L93 Difference]: Finished difference Result 733 states and 1294 transitions. [2018-11-23 00:03:36,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 00:03:36,639 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2018-11-23 00:03:36,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:03:36,653 INFO L225 Difference]: With dead ends: 733 [2018-11-23 00:03:36,653 INFO L226 Difference]: Without dead ends: 512 [2018-11-23 00:03:36,658 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:03:36,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2018-11-23 00:03:36,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 354. [2018-11-23 00:03:36,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2018-11-23 00:03:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 611 transitions. [2018-11-23 00:03:36,707 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 611 transitions. Word has length 71 [2018-11-23 00:03:36,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:03:36,708 INFO L480 AbstractCegarLoop]: Abstraction has 354 states and 611 transitions. [2018-11-23 00:03:36,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 00:03:36,708 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 611 transitions. [2018-11-23 00:03:36,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-23 00:03:36,713 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:03:36,713 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:03:36,714 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:03:36,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:03:36,714 INFO L82 PathProgramCache]: Analyzing trace with hash 41629170, now seen corresponding path program 1 times [2018-11-23 00:03:36,714 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:03:36,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:36,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:03:36,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:36,716 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:03:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:03:36,922 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 57 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:03:36,923 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:03:36,923 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:03:36,924 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-11-23 00:03:36,925 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [498], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-23 00:03:36,962 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:03:36,962 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:03:37,422 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 00:03:37,423 INFO L272 AbstractInterpreter]: Visited 78 different actions 220 times. Merged at 4 different actions 7 times. Never widened. Performed 1961 root evaluator evaluations with a maximum evaluation depth of 7. Performed 1961 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 00:03:37,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:03:37,437 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 00:03:37,437 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:03:37,437 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 00:03:37,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:03:37,450 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 00:03:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:03:37,503 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:03:37,557 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:03:37,557 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 00:03:37,606 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:03:37,626 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 00:03:37,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2018-11-23 00:03:37,627 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:03:37,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 00:03:37,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:03:37,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-23 00:03:37,628 INFO L87 Difference]: Start difference. First operand 354 states and 611 transitions. Second operand 3 states. [2018-11-23 00:03:38,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:03:38,142 INFO L93 Difference]: Finished difference Result 988 states and 1776 transitions. [2018-11-23 00:03:38,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:03:38,142 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2018-11-23 00:03:38,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:03:38,147 INFO L225 Difference]: With dead ends: 988 [2018-11-23 00:03:38,147 INFO L226 Difference]: Without dead ends: 640 [2018-11-23 00:03:38,149 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 282 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-23 00:03:38,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2018-11-23 00:03:38,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 640. [2018-11-23 00:03:38,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2018-11-23 00:03:38,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 1030 transitions. [2018-11-23 00:03:38,176 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 1030 transitions. Word has length 141 [2018-11-23 00:03:38,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:03:38,177 INFO L480 AbstractCegarLoop]: Abstraction has 640 states and 1030 transitions. [2018-11-23 00:03:38,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 00:03:38,177 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 1030 transitions. [2018-11-23 00:03:38,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-23 00:03:38,181 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:03:38,182 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:03:38,182 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:03:38,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:03:38,182 INFO L82 PathProgramCache]: Analyzing trace with hash -395920931, now seen corresponding path program 1 times [2018-11-23 00:03:38,182 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:03:38,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:38,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:03:38,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:38,184 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:03:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:03:38,303 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:03:38,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:03:38,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 00:03:38,303 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:03:38,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 00:03:38,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 00:03:38,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 00:03:38,304 INFO L87 Difference]: Start difference. First operand 640 states and 1030 transitions. Second operand 6 states. [2018-11-23 00:03:39,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:03:39,350 INFO L93 Difference]: Finished difference Result 1833 states and 3183 transitions. [2018-11-23 00:03:39,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 00:03:39,352 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2018-11-23 00:03:39,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:03:39,362 INFO L225 Difference]: With dead ends: 1833 [2018-11-23 00:03:39,362 INFO L226 Difference]: Without dead ends: 1199 [2018-11-23 00:03:39,367 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 [2018-11-23 00:03:39,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2018-11-23 00:03:39,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1179. [2018-11-23 00:03:39,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1179 states. [2018-11-23 00:03:39,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1866 transitions. [2018-11-23 00:03:39,407 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1866 transitions. Word has length 152 [2018-11-23 00:03:39,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:03:39,408 INFO L480 AbstractCegarLoop]: Abstraction has 1179 states and 1866 transitions. [2018-11-23 00:03:39,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 00:03:39,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1866 transitions. [2018-11-23 00:03:39,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-11-23 00:03:39,413 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:03:39,414 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 00:03:39,414 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:03:39,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:03:39,414 INFO L82 PathProgramCache]: Analyzing trace with hash -303103034, now seen corresponding path program 1 times [2018-11-23 00:03:39,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:03:39,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:39,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:03:39,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:39,416 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:03:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:03:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:03:39,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:03:39,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 00:03:39,559 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:03:39,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 00:03:39,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 00:03:39,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:03:39,561 INFO L87 Difference]: Start difference. First operand 1179 states and 1866 transitions. Second operand 4 states. [2018-11-23 00:03:40,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:03:40,378 INFO L93 Difference]: Finished difference Result 2352 states and 3732 transitions. [2018-11-23 00:03:40,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 00:03:40,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2018-11-23 00:03:40,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:03:40,387 INFO L225 Difference]: With dead ends: 2352 [2018-11-23 00:03:40,387 INFO L226 Difference]: Without dead ends: 1179 [2018-11-23 00:03:40,391 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:03:40,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2018-11-23 00:03:40,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1179. [2018-11-23 00:03:40,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1179 states. [2018-11-23 00:03:40,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1692 transitions. [2018-11-23 00:03:40,422 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1692 transitions. Word has length 199 [2018-11-23 00:03:40,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:03:40,423 INFO L480 AbstractCegarLoop]: Abstraction has 1179 states and 1692 transitions. [2018-11-23 00:03:40,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 00:03:40,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1692 transitions. [2018-11-23 00:03:40,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-11-23 00:03:40,428 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:03:40,428 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 00:03:40,428 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:03:40,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:03:40,429 INFO L82 PathProgramCache]: Analyzing trace with hash 421403873, now seen corresponding path program 1 times [2018-11-23 00:03:40,429 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:03:40,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:40,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:03:40,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:40,430 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:03:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:03:40,560 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:03:40,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:03:40,560 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 00:03:40,560 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:03:40,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 00:03:40,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 00:03:40,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 00:03:40,561 INFO L87 Difference]: Start difference. First operand 1179 states and 1692 transitions. Second operand 6 states. [2018-11-23 00:03:41,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:03:41,092 INFO L93 Difference]: Finished difference Result 2986 states and 4498 transitions. [2018-11-23 00:03:41,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 00:03:41,093 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 202 [2018-11-23 00:03:41,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:03:41,103 INFO L225 Difference]: With dead ends: 2986 [2018-11-23 00:03:41,103 INFO L226 Difference]: Without dead ends: 1813 [2018-11-23 00:03:41,107 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 [2018-11-23 00:03:41,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2018-11-23 00:03:41,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1783. [2018-11-23 00:03:41,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1783 states. [2018-11-23 00:03:41,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2533 transitions. [2018-11-23 00:03:41,163 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2533 transitions. Word has length 202 [2018-11-23 00:03:41,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:03:41,163 INFO L480 AbstractCegarLoop]: Abstraction has 1783 states and 2533 transitions. [2018-11-23 00:03:41,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 00:03:41,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2533 transitions. [2018-11-23 00:03:41,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-11-23 00:03:41,169 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:03:41,169 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:03:41,169 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:03:41,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:03:41,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1534813554, now seen corresponding path program 1 times [2018-11-23 00:03:41,170 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:03:41,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:41,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:03:41,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:41,171 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:03:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:03:41,296 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 128 proven. 65 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 00:03:41,297 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:03:41,297 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:03:41,297 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-11-23 00:03:41,297 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [494], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-23 00:03:41,301 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:03:41,301 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:03:41,412 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 00:03:41,412 INFO L272 AbstractInterpreter]: Visited 86 different actions 86 times. Never merged. Never widened. Performed 767 root evaluator evaluations with a maximum evaluation depth of 8. Performed 767 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Never found a fixpoint. Largest state had 24 variables. [2018-11-23 00:03:41,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:03:41,416 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 00:03:41,721 INFO L227 lantSequenceWeakener]: Weakened 212 states. On average, predicates are now at 73.78% of their original sizes. [2018-11-23 00:03:41,721 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 00:03:41,754 INFO L415 sIntCurrentIteration]: We unified 220 AI predicates to 220 [2018-11-23 00:03:41,754 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 00:03:41,755 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 00:03:41,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-23 00:03:41,755 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:03:41,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 00:03:41,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 00:03:41,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 00:03:41,756 INFO L87 Difference]: Start difference. First operand 1783 states and 2533 transitions. Second operand 6 states. [2018-11-23 00:03:46,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:03:46,873 INFO L93 Difference]: Finished difference Result 3704 states and 5291 transitions. [2018-11-23 00:03:46,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 00:03:46,874 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2018-11-23 00:03:46,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:03:46,880 INFO L225 Difference]: With dead ends: 3704 [2018-11-23 00:03:46,880 INFO L226 Difference]: Without dead ends: 1927 [2018-11-23 00:03:46,885 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 221 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 00:03:46,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2018-11-23 00:03:46,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1926. [2018-11-23 00:03:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1926 states. [2018-11-23 00:03:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2684 transitions. [2018-11-23 00:03:46,929 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2684 transitions. Word has length 221 [2018-11-23 00:03:46,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:03:46,929 INFO L480 AbstractCegarLoop]: Abstraction has 1926 states and 2684 transitions. [2018-11-23 00:03:46,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 00:03:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2684 transitions. [2018-11-23 00:03:46,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-11-23 00:03:46,935 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:03:46,935 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:03:46,935 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:03:46,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:03:46,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1716693714, now seen corresponding path program 1 times [2018-11-23 00:03:46,936 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:03:46,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:46,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:03:46,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:03:46,937 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:03:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:03:47,165 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 132 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:03:47,165 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:03:47,165 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:03:47,165 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-11-23 00:03:47,166 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-23 00:03:47,168 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:03:47,168 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:03:47,294 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 00:03:47,294 INFO L272 AbstractInterpreter]: Visited 95 different actions 278 times. Merged at 6 different actions 14 times. Never widened. Performed 2670 root evaluator evaluations with a maximum evaluation depth of 8. Performed 2670 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 00:03:47,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:03:47,303 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 00:03:47,304 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:03:47,304 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 00:03:47,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:03:47,321 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 00:03:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:03:47,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:03:58,985 WARN L180 SmtUtils]: Spent 11.53 s on a formula simplification. DAG size of input: 113 DAG size of output: 48 [2018-11-23 00:03:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 131 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:03:59,051 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 00:03:59,233 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 131 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:03:59,251 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 00:03:59,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2018-11-23 00:03:59,251 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 00:03:59,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 00:03:59,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 00:03:59,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-11-23 00:03:59,252 INFO L87 Difference]: Start difference. First operand 1926 states and 2684 transitions. Second operand 12 states. [2018-11-23 00:04:02,502 WARN L180 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 53 DAG size of output: 28 [2018-11-23 00:04:08,709 WARN L180 SmtUtils]: Spent 6.07 s on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2018-11-23 00:04:16,898 WARN L180 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 57 DAG size of output: 26 [2018-11-23 00:04:21,413 WARN L180 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 54 DAG size of output: 28 [2018-11-23 00:04:28,865 WARN L180 SmtUtils]: Spent 7.33 s on a formula simplification that was a NOOP. DAG size: 53 [2018-11-23 00:04:34,662 WARN L180 SmtUtils]: Spent 5.67 s on a formula simplification that was a NOOP. DAG size: 55 [2018-11-23 00:04:45,229 WARN L180 SmtUtils]: Spent 10.51 s on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2018-11-23 00:05:00,072 WARN L180 SmtUtils]: Spent 14.67 s on a formula simplification. DAG size of input: 61 DAG size of output: 42 [2018-11-23 00:05:02,826 WARN L180 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 57 DAG size of output: 25 [2018-11-23 00:05:04,440 WARN L180 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 56 DAG size of output: 31 [2018-11-23 00:05:18,089 WARN L180 SmtUtils]: Spent 13.46 s on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2018-11-23 00:05:20,033 WARN L180 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 53 DAG size of output: 28 [2018-11-23 00:05:29,223 WARN L180 SmtUtils]: Spent 9.03 s on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2018-11-23 00:05:29,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:05:29,978 INFO L93 Difference]: Finished difference Result 5633 states and 8422 transitions. [2018-11-23 00:05:29,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-11-23 00:05:29,979 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2018-11-23 00:05:29,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:05:29,990 INFO L225 Difference]: With dead ends: 5633 [2018-11-23 00:05:29,991 INFO L226 Difference]: Without dead ends: 3856 [2018-11-23 00:05:30,000 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 475 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 89.3s TimeCoverageRelationStatistics Valid=735, Invalid=2234, Unknown=1, NotChecked=0, Total=2970 [2018-11-23 00:05:30,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3856 states. [2018-11-23 00:05:30,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3856 to 3765. [2018-11-23 00:05:30,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3765 states. [2018-11-23 00:05:30,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 4753 transitions. [2018-11-23 00:05:30,067 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 4753 transitions. Word has length 227 [2018-11-23 00:05:30,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:05:30,068 INFO L480 AbstractCegarLoop]: Abstraction has 3765 states and 4753 transitions. [2018-11-23 00:05:30,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 00:05:30,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 4753 transitions. [2018-11-23 00:05:30,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-11-23 00:05:30,073 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:05:30,073 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:05:30,073 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:05:30,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:05:30,073 INFO L82 PathProgramCache]: Analyzing trace with hash 805990106, now seen corresponding path program 1 times [2018-11-23 00:05:30,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:05:30,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:05:30,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:05:30,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:05:30,075 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:05:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:05:30,211 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 129 proven. 5 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-23 00:05:30,211 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:05:30,211 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:05:30,211 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 232 with the following transitions: [2018-11-23 00:05:30,212 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [542], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-23 00:05:30,214 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:05:30,215 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:05:30,318 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 00:05:30,318 INFO L272 AbstractInterpreter]: Visited 90 different actions 264 times. Merged at 6 different actions 15 times. Never widened. Performed 2542 root evaluator evaluations with a maximum evaluation depth of 8. Performed 2542 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 3 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 00:05:30,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:05:30,328 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 00:05:30,328 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:05:30,328 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 00:05:30,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:05:30,338 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 00:05:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:05:30,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:05:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:05:30,455 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 00:05:30,516 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:05:30,533 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 00:05:30,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-11-23 00:05:30,534 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 00:05:30,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 00:05:30,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 00:05:30,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-23 00:05:30,534 INFO L87 Difference]: Start difference. First operand 3765 states and 4753 transitions. Second operand 11 states. [2018-11-23 00:05:31,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:05:31,988 INFO L93 Difference]: Finished difference Result 11232 states and 14625 transitions. [2018-11-23 00:05:31,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-23 00:05:31,989 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 231 [2018-11-23 00:05:31,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:05:31,996 INFO L225 Difference]: With dead ends: 11232 [2018-11-23 00:05:31,996 INFO L226 Difference]: Without dead ends: 3381 [2018-11-23 00:05:32,023 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 466 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2018-11-23 00:05:32,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states. [2018-11-23 00:05:32,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 2511. [2018-11-23 00:05:32,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2511 states. [2018-11-23 00:05:32,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 2794 transitions. [2018-11-23 00:05:32,084 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 2794 transitions. Word has length 231 [2018-11-23 00:05:32,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:05:32,084 INFO L480 AbstractCegarLoop]: Abstraction has 2511 states and 2794 transitions. [2018-11-23 00:05:32,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 00:05:32,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 2794 transitions. [2018-11-23 00:05:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-11-23 00:05:32,093 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:05:32,093 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-23 00:05:32,093 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:05:32,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:05:32,093 INFO L82 PathProgramCache]: Analyzing trace with hash -807705670, now seen corresponding path program 1 times [2018-11-23 00:05:32,094 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:05:32,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:05:32,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:05:32,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:05:32,096 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:05:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:05:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 281 proven. 166 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 00:05:32,528 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:05:32,528 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:05:32,529 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 360 with the following transitions: [2018-11-23 00:05:32,529 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-23 00:05:32,533 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:05:32,533 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:05:33,383 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 00:05:33,383 INFO L272 AbstractInterpreter]: Visited 125 different actions 251 times. Merged at 7 different actions 12 times. Never widened. Performed 2571 root evaluator evaluations with a maximum evaluation depth of 20. Performed 2571 inverse root evaluator evaluations with a maximum inverse evaluation depth of 20. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 00:05:33,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:05:33,392 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 00:05:33,392 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:05:33,392 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 00:05:33,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:05:33,409 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 00:05:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:05:33,467 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:05:33,559 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-23 00:05:33,559 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 00:05:33,721 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-23 00:05:33,739 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 00:05:33,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 16 [2018-11-23 00:05:33,739 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 00:05:33,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 00:05:33,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 00:05:33,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-11-23 00:05:33,740 INFO L87 Difference]: Start difference. First operand 2511 states and 2794 transitions. Second operand 15 states. [2018-11-23 00:05:36,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:05:36,660 INFO L93 Difference]: Finished difference Result 6435 states and 7409 transitions. [2018-11-23 00:05:36,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-11-23 00:05:36,660 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 359 [2018-11-23 00:05:36,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:05:36,668 INFO L225 Difference]: With dead ends: 6435 [2018-11-23 00:05:36,668 INFO L226 Difference]: Without dead ends: 4073 [2018-11-23 00:05:36,671 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 742 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=468, Invalid=1982, Unknown=0, NotChecked=0, Total=2450 [2018-11-23 00:05:36,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2018-11-23 00:05:36,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 3262. [2018-11-23 00:05:36,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3262 states. [2018-11-23 00:05:36,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 3621 transitions. [2018-11-23 00:05:36,754 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 3621 transitions. Word has length 359 [2018-11-23 00:05:36,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:05:36,755 INFO L480 AbstractCegarLoop]: Abstraction has 3262 states and 3621 transitions. [2018-11-23 00:05:36,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 00:05:36,755 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 3621 transitions. [2018-11-23 00:05:36,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-11-23 00:05:36,766 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:05:36,767 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:05:36,767 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:05:36,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:05:36,768 INFO L82 PathProgramCache]: Analyzing trace with hash 362141877, now seen corresponding path program 1 times [2018-11-23 00:05:36,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:05:36,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:05:36,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:05:36,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:05:36,770 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:05:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:05:37,428 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 253 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:05:37,428 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:05:37,428 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:05:37,429 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 401 with the following transitions: [2018-11-23 00:05:37,429 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-23 00:05:37,431 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:05:37,431 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:05:37,576 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 00:05:37,577 INFO L272 AbstractInterpreter]: Visited 144 different actions 427 times. Merged at 7 different actions 16 times. Never widened. Performed 4515 root evaluator evaluations with a maximum evaluation depth of 9. Performed 4515 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 00:05:37,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:05:37,578 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 00:05:37,578 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:05:37,578 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 00:05:37,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:05:37,585 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 00:05:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:05:37,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:05:41,748 WARN L180 SmtUtils]: Spent 3.94 s on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-11-23 00:05:43,955 WARN L180 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 31 [2018-11-23 00:05:44,324 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 166 proven. 204 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-11-23 00:05:44,324 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 00:05:44,574 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:44,781 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2018-11-23 00:05:44,785 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:44,847 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:44,919 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:44,976 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,016 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,062 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,115 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,169 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,226 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,292 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,346 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,400 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,451 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,510 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,564 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,632 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,688 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,759 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,813 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,869 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,923 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:45,979 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,053 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,123 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,207 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,262 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,323 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,382 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,437 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,497 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,550 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,605 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,646 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,689 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,741 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,790 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,841 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,894 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:46,952 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,005 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,059 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,129 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,178 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,231 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,283 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,335 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,407 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,480 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,555 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,623 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,682 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,734 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,785 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,839 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,893 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:47,960 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,007 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,056 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,103 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,165 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,222 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,283 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,348 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,402 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,472 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,597 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,671 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,742 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,810 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,883 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,934 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:48,996 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:49,049 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:49,103 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:49,169 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:49,222 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:49,277 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:49,333 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:49,398 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:05:49,892 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-11-23 00:05:49,908 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 00:05:49,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 6] total 30 [2018-11-23 00:05:49,908 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 00:05:49,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-11-23 00:05:49,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-11-23 00:05:49,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=757, Unknown=1, NotChecked=0, Total=870 [2018-11-23 00:05:49,910 INFO L87 Difference]: Start difference. First operand 3262 states and 3621 transitions. Second operand 27 states. [2018-11-23 00:05:51,303 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2018-11-23 00:05:54,874 WARN L180 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 114 DAG size of output: 80 [2018-11-23 00:06:14,564 WARN L180 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2018-11-23 00:06:19,583 WARN L180 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2018-11-23 00:06:23,115 WARN L180 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 128 DAG size of output: 93 [2018-11-23 00:06:28,367 WARN L180 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2018-11-23 00:06:38,612 WARN L180 SmtUtils]: Spent 4.50 s on a formula simplification. DAG size of input: 129 DAG size of output: 102 [2018-11-23 00:06:41,367 WARN L180 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 87 DAG size of output: 40 [2018-11-23 00:06:49,456 WARN L180 SmtUtils]: Spent 4.24 s on a formula simplification. DAG size of input: 129 DAG size of output: 94 [2018-11-23 00:07:00,882 WARN L180 SmtUtils]: Spent 3.66 s on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2018-11-23 00:07:07,826 WARN L180 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2018-11-23 00:07:21,575 WARN L180 SmtUtils]: Spent 4.99 s on a formula simplification. DAG size of input: 123 DAG size of output: 80 [2018-11-23 00:08:00,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:08:00,869 INFO L93 Difference]: Finished difference Result 8969 states and 10141 transitions. [2018-11-23 00:08:00,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2018-11-23 00:08:00,869 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 400 [2018-11-23 00:08:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:08:00,880 INFO L225 Difference]: With dead ends: 8969 [2018-11-23 00:08:00,881 INFO L226 Difference]: Without dead ends: 5856 [2018-11-23 00:08:00,887 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 726 SyntacticMatches, 83 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6829 ImplicationChecksByTransitivity, 58.9s TimeCoverageRelationStatistics Valid=2680, Invalid=14080, Unknown=10, NotChecked=0, Total=16770 [2018-11-23 00:08:00,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5856 states. [2018-11-23 00:08:00,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5856 to 4412. [2018-11-23 00:08:00,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4412 states. [2018-11-23 00:08:00,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4412 states to 4412 states and 4803 transitions. [2018-11-23 00:08:00,966 INFO L78 Accepts]: Start accepts. Automaton has 4412 states and 4803 transitions. Word has length 400 [2018-11-23 00:08:00,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:08:00,966 INFO L480 AbstractCegarLoop]: Abstraction has 4412 states and 4803 transitions. [2018-11-23 00:08:00,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-11-23 00:08:00,967 INFO L276 IsEmpty]: Start isEmpty. Operand 4412 states and 4803 transitions. [2018-11-23 00:08:00,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2018-11-23 00:08:00,979 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:08:00,979 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-23 00:08:00,979 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:08:00,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:08:00,980 INFO L82 PathProgramCache]: Analyzing trace with hash 466690654, now seen corresponding path program 1 times [2018-11-23 00:08:00,980 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:08:00,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:08:00,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:08:00,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:08:00,981 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:08:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:08:02,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 545 proven. 410 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2018-11-23 00:08:02,084 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:08:02,084 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:08:02,085 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 606 with the following transitions: [2018-11-23 00:08:02,085 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [730], [731], [735], [739], [743], [747], [751], [754], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-23 00:08:02,086 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:08:02,086 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:08:02,377 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 00:08:02,377 INFO L272 AbstractInterpreter]: Visited 146 different actions 588 times. Merged at 9 different actions 35 times. Never widened. Performed 6320 root evaluator evaluations with a maximum evaluation depth of 14. Performed 6320 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Found 11 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 00:08:02,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:08:02,379 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 00:08:02,379 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:08:02,380 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 00:08:02,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:08:02,385 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 00:08:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:08:02,467 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:08:04,542 WARN L180 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 72 DAG size of output: 23 [2018-11-23 00:08:06,563 WARN L180 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 20 [2018-11-23 00:08:09,983 WARN L180 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 123 DAG size of output: 62 [2018-11-23 00:08:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 822 proven. 134 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2018-11-23 00:08:10,411 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 00:08:10,638 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:10,817 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2018-11-23 00:08:10,819 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:10,875 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:10,925 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:10,976 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,032 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,087 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,139 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,193 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,242 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,292 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,340 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,395 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,452 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,514 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,586 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,641 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,695 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,751 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,809 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,866 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,924 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:11,980 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,037 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,094 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,151 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,210 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,284 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,344 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,422 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,496 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,553 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,630 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,696 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,756 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,809 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,867 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,927 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:12,983 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,038 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,096 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,154 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,209 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,264 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,320 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,380 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,436 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,493 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,551 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,606 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,659 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,715 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,772 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,830 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,905 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:13,962 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,019 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,078 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,136 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,193 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,254 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,310 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,366 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,423 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,479 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,535 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,593 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,653 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,710 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,763 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,816 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,869 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,924 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:14,980 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:15,036 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:15,092 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:15,149 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:15,205 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:15,261 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:15,319 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-23 00:08:15,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 662 proven. 2 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2018-11-23 00:08:15,943 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 00:08:15,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 9, 6] total 31 [2018-11-23 00:08:15,943 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 00:08:15,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-11-23 00:08:15,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-11-23 00:08:15,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=810, Unknown=1, NotChecked=0, Total=930 [2018-11-23 00:08:15,944 INFO L87 Difference]: Start difference. First operand 4412 states and 4803 transitions. Second operand 27 states. [2018-11-23 00:08:19,893 WARN L180 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 126 DAG size of output: 109 [2018-11-23 00:08:24,668 WARN L180 SmtUtils]: Spent 4.71 s on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2018-11-23 00:08:26,550 WARN L180 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 129 DAG size of output: 82 [2018-11-23 00:08:27,524 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2018-11-23 00:08:31,694 WARN L180 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2018-11-23 00:08:34,569 WARN L180 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 57 DAG size of output: 36 [2018-11-23 00:08:35,813 WARN L180 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 28 [2018-11-23 00:08:39,554 WARN L180 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2018-11-23 00:08:42,250 WARN L180 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 70 DAG size of output: 39 [2018-11-23 00:08:44,443 WARN L180 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 56 DAG size of output: 35 [2018-11-23 00:08:47,315 WARN L180 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 69 DAG size of output: 40 [2018-11-23 00:08:50,167 WARN L180 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 76 DAG size of output: 43 [2018-11-23 00:08:52,589 WARN L180 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2018-11-23 00:08:54,949 WARN L180 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-11-23 00:08:57,465 WARN L180 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2018-11-23 00:08:57,719 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 101 [2018-11-23 00:09:00,006 WARN L180 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 76 DAG size of output: 38 [2018-11-23 00:09:02,570 WARN L180 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-11-23 00:09:05,170 WARN L180 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2018-11-23 00:09:07,535 WARN L180 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2018-11-23 00:09:10,204 WARN L180 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2018-11-23 00:09:10,970 WARN L180 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 93 [2018-11-23 00:09:13,388 WARN L180 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2018-11-23 00:09:16,134 WARN L180 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2018-11-23 00:09:19,130 WARN L180 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2018-11-23 00:09:22,205 WARN L180 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2018-11-23 00:09:24,815 WARN L180 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2018-11-23 00:09:27,598 WARN L180 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2018-11-23 00:09:33,754 WARN L180 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 70 DAG size of output: 43 [2018-11-23 00:09:36,152 WARN L180 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-11-23 00:09:38,492 WARN L180 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2018-11-23 00:09:42,448 WARN L180 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-11-23 00:09:43,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:09:43,289 INFO L93 Difference]: Finished difference Result 9282 states and 10502 transitions. [2018-11-23 00:09:43,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-11-23 00:09:43,289 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 605 [2018-11-23 00:09:43,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:09:43,290 INFO L225 Difference]: With dead ends: 9282 [2018-11-23 00:09:43,290 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 00:09:43,300 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1369 GetRequests, 1170 SyntacticMatches, 79 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6194 ImplicationChecksByTransitivity, 84.7s TimeCoverageRelationStatistics Valid=2320, Invalid=12441, Unknown=1, NotChecked=0, Total=14762 [2018-11-23 00:09:43,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 00:09:43,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 00:09:43,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 00:09:43,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 00:09:43,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 605 [2018-11-23 00:09:43,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:09:43,301 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 00:09:43,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-11-23 00:09:43,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 00:09:43,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 00:09:43,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 00:09:43,696 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,718 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,784 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,872 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,873 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:43,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,086 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,466 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,477 WARN L180 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 537 DAG size of output: 462 [2018-11-23 00:09:44,485 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,498 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,500 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,500 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,506 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,507 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,507 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,510 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,517 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,518 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,520 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:44,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:45,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:45,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:45,214 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:09:45,220 WARN L180 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 460 [2018-11-23 00:10:01,001 WARN L180 SmtUtils]: Spent 15.70 s on a formula simplification. DAG size of input: 415 DAG size of output: 104 [2018-11-23 00:10:40,959 WARN L180 SmtUtils]: Spent 39.95 s on a formula simplification. DAG size of input: 460 DAG size of output: 72 [2018-11-23 00:11:22,014 WARN L180 SmtUtils]: Spent 41.05 s on a formula simplification. DAG size of input: 457 DAG size of output: 72 [2018-11-23 00:11:22,016 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 00:11:22,016 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|)) [2018-11-23 00:11:22,016 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 00:11:22,016 INFO L448 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-11-23 00:11:22,016 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,016 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,016 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,016 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,016 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,016 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,016 INFO L448 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-23 00:11:22,017 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-11-23 00:11:22,018 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-11-23 00:11:22,019 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-11-23 00:11:22,019 INFO L448 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-11-23 00:11:22,019 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,019 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,019 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,019 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,019 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,019 INFO L448 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-11-23 00:11:22,019 INFO L448 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-11-23 00:11:22,019 INFO L448 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-11-23 00:11:22,019 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-23 00:11:22,019 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-23 00:11:22,020 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-23 00:11:22,020 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-23 00:11:22,020 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-23 00:11:22,020 INFO L448 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-11-23 00:11:22,020 INFO L448 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-11-23 00:11:22,020 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-11-23 00:11:22,020 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-11-23 00:11:22,020 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-11-23 00:11:22,020 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,020 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,020 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,020 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,021 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-23 00:11:22,022 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,023 INFO L448 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse18 (= 9 |old(~a19~0)|)) (.cse6 (< |old(~a10~0)| 2)) (.cse20 (<= (+ |old(~a1~0)| 13) 0)) (.cse0 (= 8 |old(~a19~0)|)) (.cse19 (= |old(~a19~0)| ~a19~0)) (.cse3 (= ~a1~0 |old(~a1~0)|)) (.cse16 (= ~a19~0 |old(~a19~0)|)) (.cse17 (= |old(~a10~0)| ~a10~0))) (let ((.cse10 (< |old(~a1~0)| 23)) (.cse12 (and .cse3 .cse16 .cse17)) (.cse15 (not (= 1 |old(~a10~0)|))) (.cse5 (<= 449589 ~a1~0)) (.cse8 (< |old(~a1~0)| 449589)) (.cse7 (< 8 |old(~a19~0)|)) (.cse4 (and .cse19 .cse17)) (.cse11 (and .cse17 .cse16 .cse3)) (.cse1 (not (= 14 ~a4~0))) (.cse9 (or .cse6 (= 10 |old(~a19~0)|) .cse20 .cse0)) (.cse13 (not .cse18)) (.cse2 (not (= 0 ~a12~0))) (.cse14 (forall ((v_~a1~0_430 Int)) (let ((.cse22 (mod v_~a1~0_430 299993))) (or (= .cse22 0) (< 0 (+ v_~a1~0_430 13)) (< (+ |old(~a1~0)| 600000) .cse22) (<= 0 v_~a1~0_430)))))) (and (or (or .cse0 (not (= 2 |old(~a10~0)|))) .cse1 .cse2 (and .cse3 .cse4)) (or .cse5 .cse6 .cse7 .cse8) (or .cse9 .cse10 .cse1 .cse2 .cse11) (or (< 4 |old(~a1~0)|) .cse12 .cse1 .cse2 .cse13 (not (= 3 |old(~a10~0)|)) .cse14) (or .cse10 .cse1 .cse2 .cse13 (not (= 0 |old(~a10~0)|)) .cse12) (or .cse1 .cse2 (or .cse15 .cse13) (and (= ~a10~0 |old(~a10~0)|) .cse16 .cse3)) (or .cse7 .cse4 .cse0) (or .cse15 .cse5 .cse7 .cse8 .cse0) (or (and .cse16 .cse17 .cse3) (or .cse18 (< 2 |old(~a10~0)|) .cse0) .cse1 .cse2) (or (and .cse19 (< 0 (+ ~a1~0 13)) .cse17) .cse7 .cse20) (or .cse6 .cse7 .cse4) (or .cse11 (or .cse1 (let ((.cse21 (< |old(~a10~0)| 4))) (and (or .cse9 .cse21) (or .cse13 .cse21))) .cse2) .cse14)))) [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,024 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,025 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 199) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-11-23 00:11:22,026 INFO L448 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14) (= 9 ~a19~0)) [2018-11-23 00:11:22,027 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 00:11:22,027 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 14 ~a4~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (and (= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0)) (not (= 0 |old(~a10~0)|))) [2018-11-23 00:11:22,027 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-11-23 00:11:22,028 INFO L444 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse4 (not (= ~a19~0 8))) (.cse6 (= 9 |old(~a19~0)|)) (.cse5 (< 0 (+ ~a1~0 13))) (.cse7 (<= 2 ~a10~0)) (.cse8 (not (= ~a19~0 10)))) (let ((.cse3 (and .cse7 .cse8)) (.cse0 (<= 23 ~a1~0)) (.cse1 (and .cse7 .cse8 .cse4 .cse6 .cse5))) (or (not (= 0 |old(~a10~0)|)) (and .cse0 .cse1) (not (= 14 ~a4~0)) (and (exists ((v_~a1~0_430 Int)) (let ((.cse2 (mod v_~a1~0_430 299993))) (and (< v_~a1~0_430 0) (<= (+ v_~a1~0_430 13) 0) (<= .cse2 (+ ~a1~0 600000)) (not (= .cse2 0))))) (<= ~a1~0 4) .cse3 (= 9 ~a19~0)) (and (<= ~a19~0 8) .cse3) (not (= 23 |old(~a1~0)|)) (= 2 ~a10~0) (not (= 0 ~a12~0)) (and .cse0 (= 0 ~a10~0)) (and .cse4 (<= ~a10~0 2) (not (= ~a19~0 9))) (and (= |old(~a19~0)| ~a19~0) (= 1 ~a10~0)) (and (= 8 ~a19~0) .cse5) (not .cse6) (and (<= 4 ~a10~0) .cse1)))) [2018-11-23 00:11:22,028 INFO L448 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-11-23 00:11:22,028 INFO L448 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-11-23 00:11:22,028 INFO L444 ceAbstractionStarter]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse4 (not (= ~a19~0 8))) (.cse6 (= 9 |old(~a19~0)|)) (.cse5 (< 0 (+ ~a1~0 13))) (.cse7 (<= 2 ~a10~0)) (.cse8 (not (= ~a19~0 10)))) (let ((.cse3 (and .cse7 .cse8)) (.cse0 (<= 23 ~a1~0)) (.cse1 (and .cse7 .cse8 .cse4 .cse6 .cse5))) (or (not (= 0 |old(~a10~0)|)) (and .cse0 .cse1) (not (= 14 ~a4~0)) (and (exists ((v_~a1~0_430 Int)) (let ((.cse2 (mod v_~a1~0_430 299993))) (and (< v_~a1~0_430 0) (<= (+ v_~a1~0_430 13) 0) (<= .cse2 (+ ~a1~0 600000)) (not (= .cse2 0))))) (<= ~a1~0 4) .cse3 (= 9 ~a19~0)) (and (<= ~a19~0 8) .cse3) (not (= 23 |old(~a1~0)|)) (= 2 ~a10~0) (not (= 0 ~a12~0)) (and .cse0 (= 0 ~a10~0)) (and .cse4 (<= ~a10~0 2) (not (= ~a19~0 9))) (and (= |old(~a19~0)| ~a19~0) (= 1 ~a10~0)) (and (= 8 ~a19~0) .cse5) (not .cse6) (and (<= 4 ~a10~0) .cse1)))) [2018-11-23 00:11:22,028 INFO L448 ceAbstractionStarter]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2018-11-23 00:11:22,032 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,033 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,034 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,034 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,039 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,039 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,039 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,039 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:11:22 BoogieIcfgContainer [2018-11-23 00:11:22,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 00:11:22,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:11:22,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:11:22,044 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:11:22,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:03:35" (3/4) ... [2018-11-23 00:11:22,053 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 00:11:22,059 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 00:11:22,059 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-23 00:11:22,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 00:11:22,075 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 00:11:22,077 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 00:11:22,102 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((!(0 == \old(a10)) || (23 <= a1 && (((2 <= a10 && !(a19 == 10)) && !(a19 == 8)) && 9 == \old(a19)) && 0 < a1 + 13)) || !(14 == a4)) || ((((\exists v_~a1~0_430 : int :: ((v_~a1~0_430 < 0 && v_~a1~0_430 + 13 <= 0) && v_~a1~0_430 % 299993 <= a1 + 600000) && !(v_~a1~0_430 % 299993 == 0)) && a1 <= 4) && 2 <= a10 && !(a19 == 10)) && 9 == a19)) || (a19 <= 8 && 2 <= a10 && !(a19 == 10))) || !(23 == \old(a1))) || 2 == a10) || !(0 == a12)) || (23 <= a1 && 0 == a10)) || ((!(a19 == 8) && a10 <= 2) && !(a19 == 9))) || (\old(a19) == a19 && 1 == a10)) || (8 == a19 && 0 < a1 + 13)) || !(9 == \old(a19))) || (4 <= a10 && (((2 <= a10 && !(a19 == 10)) && !(a19 == 8)) && 9 == \old(a19)) && 0 < a1 + 13) [2018-11-23 00:11:22,167 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_563dcfd6-b4a1-4ab4-818b-81dcf142dc4d/bin-2019/utaipan/witness.graphml [2018-11-23 00:11:22,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:11:22,168 INFO L168 Benchmark]: Toolchain (without parser) took 468602.68 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.3 GB). Free memory was 956.6 MB in the beginning and 1.2 GB in the end (delta: -288.3 MB). Peak memory consumption was 981.0 MB. Max. memory is 11.5 GB. [2018-11-23 00:11:22,169 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:11:22,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.71 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 919.0 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-23 00:11:22,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 919.0 MB in the beginning and 1.1 GB in the end (delta: -216.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-11-23 00:11:22,170 INFO L168 Benchmark]: Boogie Preprocessor took 58.90 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. [2018-11-23 00:11:22,170 INFO L168 Benchmark]: RCFGBuilder took 1068.62 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: 106.1 MB). Peak memory consumption was 106.1 MB. Max. memory is 11.5 GB. [2018-11-23 00:11:22,170 INFO L168 Benchmark]: TraceAbstraction took 466858.76 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -221.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-11-23 00:11:22,170 INFO L168 Benchmark]: Witness Printer took 123.66 ms. Allocated memory is still 2.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 22.2 kB). Peak memory consumption was 22.2 kB. Max. memory is 11.5 GB. [2018-11-23 00:11:22,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 402.71 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 919.0 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 919.0 MB in the beginning and 1.1 GB in the end (delta: -216.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.90 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. * RCFGBuilder took 1068.62 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: 106.1 MB). Peak memory consumption was 106.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 466858.76 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -221.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. * Witness Printer took 123.66 ms. Allocated memory is still 2.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 22.2 kB). Peak memory consumption was 22.2 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 199]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant [2018-11-23 00:11:22,175 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,175 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,175 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,176 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,177 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,177 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,177 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-23 00:11:22,177 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] Derived loop invariant: ((((((((((((!(0 == \old(a10)) || (23 <= a1 && (((2 <= a10 && !(a19 == 10)) && !(a19 == 8)) && 9 == \old(a19)) && 0 < a1 + 13)) || !(14 == a4)) || ((((\exists v_~a1~0_430 : int :: ((v_~a1~0_430 < 0 && v_~a1~0_430 + 13 <= 0) && v_~a1~0_430 % 299993 <= a1 + 600000) && !(v_~a1~0_430 % 299993 == 0)) && a1 <= 4) && 2 <= a10 && !(a19 == 10)) && 9 == a19)) || (a19 <= 8 && 2 <= a10 && !(a19 == 10))) || !(23 == \old(a1))) || 2 == a10) || !(0 == a12)) || (23 <= a1 && 0 == a10)) || ((!(a19 == 8) && a10 <= 2) && !(a19 == 9))) || (\old(a19) == a19 && 1 == a10)) || (8 == a19 && 0 < a1 + 13)) || !(9 == \old(a19))) || (4 <= a10 && (((2 <= a10 && !(a19 == 10)) && !(a19 == 8)) && 9 == \old(a19)) && 0 < a1 + 13) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. SAFE Result, 466.7s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 322.6s AutomataDifference, 0.0s DeadEndRemovalTime, 98.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 1591 SDtfs, 21679 SDslu, 2976 SDs, 0 SdLazy, 41625 SolverSat, 6562 SolverUnsat, 66 SolverUnknown, 0 SolverNotchecked, 117.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 4666 GetRequests, 4088 SyntacticMatches, 176 SemanticMatches, 402 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14700 ImplicationChecksByTransitivity, 234.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4412occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.1s AbstIntTime, 7 AbstIntIterations, 1 AbstIntStrong, 0.9974409681227866 AbsIntWeakeningRatio, 0.11818181818181818 AbsIntAvgWeakeningVarsNumRemoved, 15.522727272727273 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 3425 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 231 PreInvPairs, 425 NumberOfFragments, 752 HoareAnnotationTreeSize, 231 FomulaSimplifications, 131207 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 73687 FormulaSimplificationTreeSizeReductionInter, 96.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 40.0s InterpolantComputationTime, 4771 NumberOfCodeBlocks, 4771 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 6711 ConstructedInterpolants, 330 QuantifiedInterpolants, 24837750 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3131 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 23 InterpolantComputations, 6 PerfectInterpolantSequences, 6841/8264 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...