./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.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_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/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 41d17b9aa5f2178c80003b4f705c8a61e02072b8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 15:47:14,328 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:47:14,329 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:47:14,337 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:47:14,337 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:47:14,338 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:47:14,338 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:47:14,340 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:47:14,341 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:47:14,341 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:47:14,342 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:47:14,342 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:47:14,342 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:47:14,343 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:47:14,344 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:47:14,344 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:47:14,345 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:47:14,346 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:47:14,347 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:47:14,348 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:47:14,348 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:47:14,349 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:47:14,350 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:47:14,351 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:47:14,351 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:47:14,351 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:47:14,352 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:47:14,352 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:47:14,353 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:47:14,354 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:47:14,354 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:47:14,354 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:47:14,354 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:47:14,354 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:47:14,355 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:47:14,355 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:47:14,356 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 15:47:14,364 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:47:14,364 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:47:14,365 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:47:14,365 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:47:14,365 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 15:47:14,365 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 15:47:14,366 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 15:47:14,366 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 15:47:14,366 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 15:47:14,366 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 15:47:14,366 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 15:47:14,366 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 15:47:14,366 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 15:47:14,367 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:47:14,367 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 15:47:14,367 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 15:47:14,367 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 15:47:14,367 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:47:14,367 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 15:47:14,367 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:47:14,368 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 15:47:14,368 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 15:47:14,368 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:47:14,368 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:47:14,368 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 15:47:14,368 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:47:14,368 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:47:14,368 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:47:14,369 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:47:14,369 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:47:14,369 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:47:14,369 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:47:14,369 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 15:47:14,369 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 15:47:14,369 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:47:14,369 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 15:47:14,369 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 15:47:14,370 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_73f4cfac-8fb0-4f40-9371-fec711203e2e/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 -> 41d17b9aa5f2178c80003b4f705c8a61e02072b8 [2018-11-23 15:47:14,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:47:14,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:47:14,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:47:14,403 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:47:14,403 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:47:14,404 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.c [2018-11-23 15:47:14,447 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/data/0c1addfb3/88036647718544aa8b28e969f2a46d22/FLAGf3b421029 [2018-11-23 15:47:14,846 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:47:14,846 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/sv-benchmarks/c/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.c [2018-11-23 15:47:14,855 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/data/0c1addfb3/88036647718544aa8b28e969f2a46d22/FLAGf3b421029 [2018-11-23 15:47:15,224 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/data/0c1addfb3/88036647718544aa8b28e969f2a46d22 [2018-11-23 15:47:15,227 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:47:15,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:47:15,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:47:15,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:47:15,231 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:47:15,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:47:15" (1/1) ... [2018-11-23 15:47:15,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc25161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:15, skipping insertion in model container [2018-11-23 15:47:15,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:47:15" (1/1) ... [2018-11-23 15:47:15,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:47:15,277 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:47:15,545 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:47:15,547 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:47:15,634 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:47:15,643 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:47:15,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:15 WrapperNode [2018-11-23 15:47:15,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:47:15,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:47:15,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:47:15,645 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:47:15,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:15" (1/1) ... [2018-11-23 15:47:15,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:15" (1/1) ... [2018-11-23 15:47:15,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:47:15,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:47:15,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:47:15,729 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:47:15,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:15" (1/1) ... [2018-11-23 15:47:15,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:15" (1/1) ... [2018-11-23 15:47:15,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:15" (1/1) ... [2018-11-23 15:47:15,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:15" (1/1) ... [2018-11-23 15:47:15,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:15" (1/1) ... [2018-11-23 15:47:15,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:15" (1/1) ... [2018-11-23 15:47:15,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:15" (1/1) ... [2018-11-23 15:47:15,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:47:15,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:47:15,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:47:15,778 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:47:15,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/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 15:47:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 15:47:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:47:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:47:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 15:47:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 15:47:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:47:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:47:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:47:15,825 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:47:16,811 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:47:16,811 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 15:47:16,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:47:16 BoogieIcfgContainer [2018-11-23 15:47:16,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:47:16,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:47:16,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:47:16,815 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:47:16,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:47:15" (1/3) ... [2018-11-23 15:47:16,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e28628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:47:16, skipping insertion in model container [2018-11-23 15:47:16,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:15" (2/3) ... [2018-11-23 15:47:16,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e28628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:47:16, skipping insertion in model container [2018-11-23 15:47:16,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:47:16" (3/3) ... [2018-11-23 15:47:16,817 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label24_true-unreach-call_false-termination.c [2018-11-23 15:47:16,824 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:47:16,830 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 15:47:16,842 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 15:47:16,866 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:47:16,867 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 15:47:16,867 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:47:16,867 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:47:16,867 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:47:16,867 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:47:16,867 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:47:16,867 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:47:16,885 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-11-23 15:47:16,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 15:47:16,891 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:47:16,891 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] [2018-11-23 15:47:16,893 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:47:16,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:47:16,898 INFO L82 PathProgramCache]: Analyzing trace with hash 2116109586, now seen corresponding path program 1 times [2018-11-23 15:47:16,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:47:16,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:47:16,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:47:16,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:47:16,930 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:47:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:47:17,107 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 15:47:17,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:47:17,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 15:47:17,109 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:47:17,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 15:47:17,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 15:47:17,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:47:17,123 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2018-11-23 15:47:17,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:47:17,887 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2018-11-23 15:47:17,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 15:47:17,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-23 15:47:17,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:47:17,900 INFO L225 Difference]: With dead ends: 688 [2018-11-23 15:47:17,900 INFO L226 Difference]: Without dead ends: 432 [2018-11-23 15:47:17,905 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:47:17,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2018-11-23 15:47:17,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2018-11-23 15:47:17,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2018-11-23 15:47:17,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 763 transitions. [2018-11-23 15:47:17,962 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 763 transitions. Word has length 47 [2018-11-23 15:47:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:47:17,963 INFO L480 AbstractCegarLoop]: Abstraction has 432 states and 763 transitions. [2018-11-23 15:47:17,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 15:47:17,963 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 763 transitions. [2018-11-23 15:47:17,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-23 15:47:17,967 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:47:17,967 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:47:17,967 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:47:17,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:47:17,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1939521290, now seen corresponding path program 1 times [2018-11-23 15:47:17,968 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:47:17,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:47:17,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:47:17,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:47:17,969 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:47:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:47:18,102 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:47:18,103 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:47:18,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 15:47:18,103 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:47:18,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 15:47:18,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 15:47:18,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 15:47:18,105 INFO L87 Difference]: Start difference. First operand 432 states and 763 transitions. Second operand 6 states. [2018-11-23 15:47:18,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:47:18,801 INFO L93 Difference]: Finished difference Result 1056 states and 1891 transitions. [2018-11-23 15:47:18,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 15:47:18,801 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-11-23 15:47:18,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:47:18,805 INFO L225 Difference]: With dead ends: 1056 [2018-11-23 15:47:18,805 INFO L226 Difference]: Without dead ends: 630 [2018-11-23 15:47:18,806 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 15:47:18,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2018-11-23 15:47:18,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 622. [2018-11-23 15:47:18,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2018-11-23 15:47:18,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1016 transitions. [2018-11-23 15:47:18,829 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1016 transitions. Word has length 121 [2018-11-23 15:47:18,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:47:18,829 INFO L480 AbstractCegarLoop]: Abstraction has 622 states and 1016 transitions. [2018-11-23 15:47:18,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 15:47:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1016 transitions. [2018-11-23 15:47:18,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-11-23 15:47:18,832 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:47:18,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:47:18,832 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:47:18,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:47:18,833 INFO L82 PathProgramCache]: Analyzing trace with hash -2114473467, now seen corresponding path program 1 times [2018-11-23 15:47:18,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:47:18,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:47:18,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:47:18,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:47:18,835 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:47:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:47:18,932 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:47:18,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:47:18,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 15:47:18,933 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:47:18,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 15:47:18,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 15:47:18,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 15:47:18,934 INFO L87 Difference]: Start difference. First operand 622 states and 1016 transitions. Second operand 4 states. [2018-11-23 15:47:20,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:47:20,024 INFO L93 Difference]: Finished difference Result 2336 states and 3987 transitions. [2018-11-23 15:47:20,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 15:47:20,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2018-11-23 15:47:20,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:47:20,034 INFO L225 Difference]: With dead ends: 2336 [2018-11-23 15:47:20,035 INFO L226 Difference]: Without dead ends: 1720 [2018-11-23 15:47:20,039 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 15:47:20,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2018-11-23 15:47:20,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1720. [2018-11-23 15:47:20,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1720 states. [2018-11-23 15:47:20,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2660 transitions. [2018-11-23 15:47:20,083 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2660 transitions. Word has length 130 [2018-11-23 15:47:20,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:47:20,083 INFO L480 AbstractCegarLoop]: Abstraction has 1720 states and 2660 transitions. [2018-11-23 15:47:20,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 15:47:20,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2660 transitions. [2018-11-23 15:47:20,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-11-23 15:47:20,089 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:47:20,090 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 15:47:20,090 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:47:20,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:47:20,090 INFO L82 PathProgramCache]: Analyzing trace with hash 511372486, now seen corresponding path program 1 times [2018-11-23 15:47:20,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:47:20,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:47:20,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:47:20,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:47:20,091 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:47:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:47:20,342 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 80 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 15:47:20,343 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:47:20,343 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:47:20,344 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-11-23 15:47:20,345 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 15:47:20,382 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:47:20,382 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:47:22,472 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 15:47:22,473 INFO L272 AbstractInterpreter]: Visited 117 different actions 117 times. Never merged. Never widened. Performed 1048 root evaluator evaluations with a maximum evaluation depth of 22. Performed 1048 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Never found a fixpoint. Largest state had 24 variables. [2018-11-23 15:47:22,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:47:22,482 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 15:47:24,214 INFO L227 lantSequenceWeakener]: Weakened 224 states. On average, predicates are now at 77.87% of their original sizes. [2018-11-23 15:47:24,215 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 15:47:24,250 INFO L415 sIntCurrentIteration]: We unified 232 AI predicates to 232 [2018-11-23 15:47:24,250 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 15:47:24,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 15:47:24,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-11-23 15:47:24,251 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:47:24,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 15:47:24,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 15:47:24,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 15:47:24,252 INFO L87 Difference]: Start difference. First operand 1720 states and 2660 transitions. Second operand 6 states. [2018-11-23 15:47:35,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:47:35,935 INFO L93 Difference]: Finished difference Result 3617 states and 5602 transitions. [2018-11-23 15:47:35,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 15:47:35,935 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 233 [2018-11-23 15:47:35,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:47:35,941 INFO L225 Difference]: With dead ends: 3617 [2018-11-23 15:47:35,941 INFO L226 Difference]: Without dead ends: 1903 [2018-11-23 15:47:35,944 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 233 GetRequests, 228 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 15:47:35,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2018-11-23 15:47:35,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1902. [2018-11-23 15:47:35,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1902 states. [2018-11-23 15:47:35,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2850 transitions. [2018-11-23 15:47:35,972 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2850 transitions. Word has length 233 [2018-11-23 15:47:35,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:47:35,972 INFO L480 AbstractCegarLoop]: Abstraction has 1902 states and 2850 transitions. [2018-11-23 15:47:35,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 15:47:35,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2850 transitions. [2018-11-23 15:47:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-11-23 15:47:35,976 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:47:35,977 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:47:35,977 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:47:35,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:47:35,978 INFO L82 PathProgramCache]: Analyzing trace with hash -266552290, now seen corresponding path program 1 times [2018-11-23 15:47:35,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:47:35,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:47:35,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:47:35,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:47:35,979 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:47:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:47:36,398 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 206 proven. 142 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 15:47:36,398 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:47:36,398 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:47:36,398 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 318 with the following transitions: [2018-11-23 15:47:36,399 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 15:47:36,402 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:47:36,402 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:47:39,447 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 15:47:39,448 INFO L272 AbstractInterpreter]: Visited 121 different actions 235 times. Merged at 3 different actions 3 times. Never widened. Performed 2161 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2161 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 15:47:39,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:47:39,452 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 15:47:41,020 INFO L227 lantSequenceWeakener]: Weakened 314 states. On average, predicates are now at 77.76% of their original sizes. [2018-11-23 15:47:41,020 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 15:47:41,075 INFO L415 sIntCurrentIteration]: We unified 316 AI predicates to 316 [2018-11-23 15:47:41,075 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 15:47:41,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 15:47:41,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-11-23 15:47:41,076 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:47:41,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 15:47:41,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 15:47:41,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 15:47:41,077 INFO L87 Difference]: Start difference. First operand 1902 states and 2850 transitions. Second operand 10 states. [2018-11-23 15:48:18,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:48:18,527 INFO L93 Difference]: Finished difference Result 4169 states and 6332 transitions. [2018-11-23 15:48:18,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 15:48:18,528 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 317 [2018-11-23 15:48:18,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:48:18,536 INFO L225 Difference]: With dead ends: 4169 [2018-11-23 15:48:18,536 INFO L226 Difference]: Without dead ends: 2455 [2018-11-23 15:48:18,543 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 325 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-23 15:48:18,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2018-11-23 15:48:18,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2453. [2018-11-23 15:48:18,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2453 states. [2018-11-23 15:48:18,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3436 transitions. [2018-11-23 15:48:18,595 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3436 transitions. Word has length 317 [2018-11-23 15:48:18,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:48:18,596 INFO L480 AbstractCegarLoop]: Abstraction has 2453 states and 3436 transitions. [2018-11-23 15:48:18,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 15:48:18,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3436 transitions. [2018-11-23 15:48:18,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2018-11-23 15:48:18,605 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:48:18,605 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 15:48:18,606 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:48:18,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:48:18,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1532597849, now seen corresponding path program 1 times [2018-11-23 15:48:18,606 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:48:18,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:48:18,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:48:18,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:48:18,607 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:48:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:48:19,276 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 353 proven. 212 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-23 15:48:19,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:48:19,276 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:48:19,276 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 417 with the following transitions: [2018-11-23 15:48:19,277 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 15:48:19,279 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:48:19,279 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:48:22,059 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 15:48:22,060 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 times. Merged at 4 different actions 4 times. Never widened. Performed 2172 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2172 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 15:48:22,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:48:22,061 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 15:48:23,659 INFO L227 lantSequenceWeakener]: Weakened 413 states. On average, predicates are now at 77.67% of their original sizes. [2018-11-23 15:48:23,659 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 15:48:23,711 INFO L415 sIntCurrentIteration]: We unified 415 AI predicates to 415 [2018-11-23 15:48:23,711 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 15:48:23,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 15:48:23,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-11-23 15:48:23,712 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:48:23,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 15:48:23,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 15:48:23,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 15:48:23,713 INFO L87 Difference]: Start difference. First operand 2453 states and 3436 transitions. Second operand 10 states. [2018-11-23 15:48:42,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:48:42,290 INFO L93 Difference]: Finished difference Result 4904 states and 6882 transitions. [2018-11-23 15:48:42,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 15:48:42,290 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 416 [2018-11-23 15:48:42,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:48:42,298 INFO L225 Difference]: With dead ends: 4904 [2018-11-23 15:48:42,298 INFO L226 Difference]: Without dead ends: 2639 [2018-11-23 15:48:42,303 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 423 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-23 15:48:42,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2018-11-23 15:48:42,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2637. [2018-11-23 15:48:42,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2637 states. [2018-11-23 15:48:42,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 3627 transitions. [2018-11-23 15:48:42,350 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 3627 transitions. Word has length 416 [2018-11-23 15:48:42,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:48:42,351 INFO L480 AbstractCegarLoop]: Abstraction has 2637 states and 3627 transitions. [2018-11-23 15:48:42,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 15:48:42,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 3627 transitions. [2018-11-23 15:48:42,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2018-11-23 15:48:42,361 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:48:42,362 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:48:42,362 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:48:42,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:48:42,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1203933665, now seen corresponding path program 1 times [2018-11-23 15:48:42,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:48:42,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:48:42,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:48:42,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:48:42,363 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:48:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:48:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 388 proven. 74 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-11-23 15:48:42,684 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:48:42,684 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:48:42,684 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 453 with the following transitions: [2018-11-23 15:48:42,685 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 15:48:42,687 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:48:42,687 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:48:49,144 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 15:48:49,144 INFO L272 AbstractInterpreter]: Visited 122 different actions 359 times. Merged at 6 different actions 13 times. Never widened. Performed 3467 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3467 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 15:48:49,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:48:49,145 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 15:48:49,985 INFO L227 lantSequenceWeakener]: Weakened 449 states. On average, predicates are now at 80.28% of their original sizes. [2018-11-23 15:48:49,986 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 15:48:50,040 INFO L415 sIntCurrentIteration]: We unified 451 AI predicates to 451 [2018-11-23 15:48:50,040 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 15:48:50,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 15:48:50,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-11-23 15:48:50,041 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:48:50,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 15:48:50,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 15:48:50,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 15:48:50,042 INFO L87 Difference]: Start difference. First operand 2637 states and 3627 transitions. Second operand 9 states. [2018-11-23 15:49:06,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:49:06,207 INFO L93 Difference]: Finished difference Result 5619 states and 7995 transitions. [2018-11-23 15:49:06,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 15:49:06,207 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 452 [2018-11-23 15:49:06,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:49:06,215 INFO L225 Difference]: With dead ends: 5619 [2018-11-23 15:49:06,216 INFO L226 Difference]: Without dead ends: 3354 [2018-11-23 15:49:06,221 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 458 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-23 15:49:06,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3354 states. [2018-11-23 15:49:06,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3354 to 3336. [2018-11-23 15:49:06,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3336 states. [2018-11-23 15:49:06,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4565 transitions. [2018-11-23 15:49:06,278 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4565 transitions. Word has length 452 [2018-11-23 15:49:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:49:06,278 INFO L480 AbstractCegarLoop]: Abstraction has 3336 states and 4565 transitions. [2018-11-23 15:49:06,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 15:49:06,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4565 transitions. [2018-11-23 15:49:06,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2018-11-23 15:49:06,290 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:49:06,290 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:49:06,291 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:49:06,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:49:06,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1808065537, now seen corresponding path program 1 times [2018-11-23 15:49:06,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:49:06,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:06,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:49:06,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:06,292 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:49:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:49:06,537 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 294 proven. 253 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2018-11-23 15:49:06,538 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:49:06,538 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:49:06,538 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 501 with the following transitions: [2018-11-23 15:49:06,538 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 15:49:06,541 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:49:06,541 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:49:11,063 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:49:11,063 INFO L272 AbstractInterpreter]: Visited 124 different actions 498 times. Merged at 9 different actions 35 times. Never widened. Performed 4754 root evaluator evaluations with a maximum evaluation depth of 22. Performed 4754 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 10 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 15:49:11,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:49:11,065 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:49:11,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:49:11,065 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/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 15:49:11,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:49:11,072 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:49:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:49:11,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:49:11,383 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 647 proven. 2 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2018-11-23 15:49:11,383 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:49:11,562 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 294 proven. 253 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2018-11-23 15:49:11,579 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:49:11,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-23 15:49:11,579 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:49:11,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 15:49:11,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 15:49:11,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-23 15:49:11,580 INFO L87 Difference]: Start difference. First operand 3336 states and 4565 transitions. Second operand 9 states. [2018-11-23 15:49:13,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:49:13,648 INFO L93 Difference]: Finished difference Result 6895 states and 9654 transitions. [2018-11-23 15:49:13,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-23 15:49:13,648 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 500 [2018-11-23 15:49:13,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:49:13,656 INFO L225 Difference]: With dead ends: 6895 [2018-11-23 15:49:13,657 INFO L226 Difference]: Without dead ends: 3564 [2018-11-23 15:49:13,663 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1048 GetRequests, 1016 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=226, Invalid=704, Unknown=0, NotChecked=0, Total=930 [2018-11-23 15:49:13,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2018-11-23 15:49:13,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3540. [2018-11-23 15:49:13,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3540 states. [2018-11-23 15:49:13,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 4270 transitions. [2018-11-23 15:49:13,698 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 4270 transitions. Word has length 500 [2018-11-23 15:49:13,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:49:13,699 INFO L480 AbstractCegarLoop]: Abstraction has 3540 states and 4270 transitions. [2018-11-23 15:49:13,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 15:49:13,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 4270 transitions. [2018-11-23 15:49:13,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2018-11-23 15:49:13,703 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:49:13,704 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:13,704 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:49:13,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:49:13,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1064577518, now seen corresponding path program 1 times [2018-11-23 15:49:13,704 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:49:13,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:13,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:49:13,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:13,705 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:49:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:49:14,433 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 389 proven. 249 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-23 15:49:14,433 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:49:14,434 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:49:14,434 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 520 with the following transitions: [2018-11-23 15:49:14,434 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 15:49:14,437 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:49:14,437 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:49:18,475 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:49:18,475 INFO L272 AbstractInterpreter]: Visited 190 different actions 752 times. Merged at 8 different actions 25 times. Never widened. Performed 8304 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8304 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 15:49:18,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:49:18,478 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:49:18,478 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:49:18,478 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/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 15:49:18,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:49:18,486 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:49:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:49:18,552 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:49:18,781 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 561 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-11-23 15:49:18,781 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:49:19,113 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 388 proven. 74 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-11-23 15:49:19,127 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:49:19,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 20 [2018-11-23 15:49:19,128 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:49:19,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 15:49:19,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 15:49:19,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2018-11-23 15:49:19,129 INFO L87 Difference]: Start difference. First operand 3540 states and 4270 transitions. Second operand 17 states. [2018-11-23 15:49:23,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:49:23,630 INFO L93 Difference]: Finished difference Result 8348 states and 10568 transitions. [2018-11-23 15:49:23,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-11-23 15:49:23,630 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 519 [2018-11-23 15:49:23,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:49:23,638 INFO L225 Difference]: With dead ends: 8348 [2018-11-23 15:49:23,638 INFO L226 Difference]: Without dead ends: 4490 [2018-11-23 15:49:23,645 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1124 GetRequests, 1065 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=757, Invalid=2903, Unknown=0, NotChecked=0, Total=3660 [2018-11-23 15:49:23,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4490 states. [2018-11-23 15:49:23,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4490 to 4232. [2018-11-23 15:49:23,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4232 states. [2018-11-23 15:49:23,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4232 states to 4232 states and 5027 transitions. [2018-11-23 15:49:23,690 INFO L78 Accepts]: Start accepts. Automaton has 4232 states and 5027 transitions. Word has length 519 [2018-11-23 15:49:23,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:49:23,691 INFO L480 AbstractCegarLoop]: Abstraction has 4232 states and 5027 transitions. [2018-11-23 15:49:23,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 15:49:23,691 INFO L276 IsEmpty]: Start isEmpty. Operand 4232 states and 5027 transitions. [2018-11-23 15:49:23,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2018-11-23 15:49:23,695 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:49:23,696 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:49:23,696 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:49:23,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:49:23,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1455433953, now seen corresponding path program 1 times [2018-11-23 15:49:23,696 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:49:23,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:23,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:49:23,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:23,697 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:49:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:49:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 511 proven. 385 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-11-23 15:49:24,324 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:49:24,324 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:49:24,324 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 525 with the following transitions: [2018-11-23 15:49:24,324 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 15:49:24,326 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:49:24,326 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:49:31,402 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:49:31,402 INFO L272 AbstractInterpreter]: Visited 124 different actions 491 times. Merged at 8 different actions 28 times. Widened at 1 different actions 1 times. Performed 4912 root evaluator evaluations with a maximum evaluation depth of 22. Performed 4912 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-23 15:49:31,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:49:31,406 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:49:31,406 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:49:31,406 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/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 15:49:31,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:49:31,411 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:49:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:49:31,486 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:49:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 748 proven. 2 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-11-23 15:49:31,768 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:49:32,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 507 proven. 74 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2018-11-23 15:49:32,094 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:49:32,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-23 15:49:32,094 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:49:32,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 15:49:32,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 15:49:32,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-11-23 15:49:32,095 INFO L87 Difference]: Start difference. First operand 4232 states and 5027 transitions. Second operand 17 states. [2018-11-23 15:49:34,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:49:34,919 INFO L93 Difference]: Finished difference Result 9550 states and 11783 transitions. [2018-11-23 15:49:34,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-23 15:49:34,920 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 524 [2018-11-23 15:49:34,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:49:34,930 INFO L225 Difference]: With dead ends: 9550 [2018-11-23 15:49:34,930 INFO L226 Difference]: Without dead ends: 4567 [2018-11-23 15:49:34,939 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1108 GetRequests, 1060 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=536, Invalid=1816, Unknown=0, NotChecked=0, Total=2352 [2018-11-23 15:49:34,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4567 states. [2018-11-23 15:49:34,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4567 to 4359. [2018-11-23 15:49:34,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4359 states. [2018-11-23 15:49:35,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4359 states to 4359 states and 4904 transitions. [2018-11-23 15:49:35,006 INFO L78 Accepts]: Start accepts. Automaton has 4359 states and 4904 transitions. Word has length 524 [2018-11-23 15:49:35,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:49:35,007 INFO L480 AbstractCegarLoop]: Abstraction has 4359 states and 4904 transitions. [2018-11-23 15:49:35,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 15:49:35,007 INFO L276 IsEmpty]: Start isEmpty. Operand 4359 states and 4904 transitions. [2018-11-23 15:49:35,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2018-11-23 15:49:35,012 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:49:35,012 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:49:35,012 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:49:35,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:49:35,013 INFO L82 PathProgramCache]: Analyzing trace with hash 629641869, now seen corresponding path program 1 times [2018-11-23 15:49:35,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:49:35,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:35,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:49:35,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:35,014 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:49:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:49:35,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 552 proven. 74 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-11-23 15:49:35,392 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:49:35,392 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:49:35,392 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 637 with the following transitions: [2018-11-23 15:49:35,392 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 15:49:35,395 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:49:35,395 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:49:39,368 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:49:39,369 INFO L272 AbstractInterpreter]: Visited 191 different actions 768 times. Merged at 9 different actions 37 times. Widened at 1 different actions 2 times. Performed 8556 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8556 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 15:49:39,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:49:39,370 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:49:39,370 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:49:39,370 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/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 15:49:39,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:49:39,376 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:49:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:49:39,445 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:49:39,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 795 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2018-11-23 15:49:39,581 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:49:39,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 552 proven. 74 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-11-23 15:49:39,919 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:49:39,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-23 15:49:39,919 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:49:39,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 15:49:39,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 15:49:39,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-23 15:49:39,921 INFO L87 Difference]: Start difference. First operand 4359 states and 4904 transitions. Second operand 7 states. [2018-11-23 15:49:41,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:49:41,054 INFO L93 Difference]: Finished difference Result 13500 states and 17290 transitions. [2018-11-23 15:49:41,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 15:49:41,055 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 636 [2018-11-23 15:49:41,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:49:41,084 INFO L225 Difference]: With dead ends: 13500 [2018-11-23 15:49:41,084 INFO L226 Difference]: Without dead ends: 9513 [2018-11-23 15:49:41,102 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1289 GetRequests, 1275 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-11-23 15:49:41,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9513 states. [2018-11-23 15:49:41,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9513 to 9288. [2018-11-23 15:49:41,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9288 states. [2018-11-23 15:49:41,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9288 states to 9288 states and 10676 transitions. [2018-11-23 15:49:41,242 INFO L78 Accepts]: Start accepts. Automaton has 9288 states and 10676 transitions. Word has length 636 [2018-11-23 15:49:41,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:49:41,243 INFO L480 AbstractCegarLoop]: Abstraction has 9288 states and 10676 transitions. [2018-11-23 15:49:41,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 15:49:41,243 INFO L276 IsEmpty]: Start isEmpty. Operand 9288 states and 10676 transitions. [2018-11-23 15:49:41,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2018-11-23 15:49:41,251 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:49:41,252 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:41,252 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:49:41,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:49:41,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1074697562, now seen corresponding path program 1 times [2018-11-23 15:49:41,252 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:49:41,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:41,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:49:41,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:41,253 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:49:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:49:42,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 765 proven. 673 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-11-23 15:49:42,588 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:49:42,588 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:49:42,588 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 796 with the following transitions: [2018-11-23 15:49:42,588 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [854], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 15:49:42,590 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:49:42,590 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:49:46,565 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:49:46,565 INFO L272 AbstractInterpreter]: Visited 192 different actions 772 times. Merged at 9 different actions 37 times. Widened at 1 different actions 1 times. Performed 8586 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8586 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 11 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-23 15:49:46,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:49:46,573 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:49:46,574 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:49:46,574 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/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 15:49:46,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:49:46,580 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:49:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:49:46,670 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:49:46,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 1071 proven. 2 refuted. 0 times theorem prover too weak. 696 trivial. 0 not checked. [2018-11-23 15:49:46,937 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:49:47,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 758 proven. 74 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2018-11-23 15:49:47,296 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:49:47,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 22 [2018-11-23 15:49:47,296 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:49:47,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-23 15:49:47,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-23 15:49:47,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-11-23 15:49:47,298 INFO L87 Difference]: Start difference. First operand 9288 states and 10676 transitions. Second operand 20 states. [2018-11-23 15:49:52,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:49:52,311 INFO L93 Difference]: Finished difference Result 21858 states and 25597 transitions. [2018-11-23 15:49:52,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-11-23 15:49:52,311 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 795 [2018-11-23 15:49:52,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:49:52,329 INFO L225 Difference]: With dead ends: 21858 [2018-11-23 15:49:52,329 INFO L226 Difference]: Without dead ends: 10553 [2018-11-23 15:49:52,349 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1740 GetRequests, 1645 SyntacticMatches, 5 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2697 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1231, Invalid=7141, Unknown=0, NotChecked=0, Total=8372 [2018-11-23 15:49:52,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10553 states. [2018-11-23 15:49:52,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10553 to 9678. [2018-11-23 15:49:52,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9678 states. [2018-11-23 15:49:52,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9678 states to 9678 states and 10691 transitions. [2018-11-23 15:49:52,442 INFO L78 Accepts]: Start accepts. Automaton has 9678 states and 10691 transitions. Word has length 795 [2018-11-23 15:49:52,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:49:52,442 INFO L480 AbstractCegarLoop]: Abstraction has 9678 states and 10691 transitions. [2018-11-23 15:49:52,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-23 15:49:52,443 INFO L276 IsEmpty]: Start isEmpty. Operand 9678 states and 10691 transitions. [2018-11-23 15:49:52,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 962 [2018-11-23 15:49:52,449 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:49:52,450 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 15:49:52,450 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:49:52,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:49:52,450 INFO L82 PathProgramCache]: Analyzing trace with hash 317370558, now seen corresponding path program 1 times [2018-11-23 15:49:52,450 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:49:52,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:52,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:49:52,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:52,451 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:49:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:49:54,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 705 proven. 1256 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2018-11-23 15:49:54,100 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:49:54,100 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:49:54,100 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 962 with the following transitions: [2018-11-23 15:49:54,100 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [522], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 15:49:54,102 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:49:54,102 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:49:58,061 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:49:58,061 INFO L272 AbstractInterpreter]: Visited 193 different actions 770 times. Merged at 11 different actions 31 times. Never widened. Performed 8479 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8479 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 12 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-23 15:49:58,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:49:58,074 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:49:58,074 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:49:58,074 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/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 15:49:58,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:49:58,080 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:49:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:49:58,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:49:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 1911 proven. 2 refuted. 0 times theorem prover too weak. 939 trivial. 0 not checked. [2018-11-23 15:49:58,830 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:49:59,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 701 proven. 400 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2018-11-23 15:49:59,815 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:49:59,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 20 [2018-11-23 15:49:59,815 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:49:59,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 15:49:59,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 15:49:59,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2018-11-23 15:49:59,816 INFO L87 Difference]: Start difference. First operand 9678 states and 10691 transitions. Second operand 18 states. [2018-11-23 15:50:02,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:50:02,348 INFO L93 Difference]: Finished difference Result 20696 states and 23059 transitions. [2018-11-23 15:50:02,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-23 15:50:02,348 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 961 [2018-11-23 15:50:02,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:50:02,362 INFO L225 Difference]: With dead ends: 20696 [2018-11-23 15:50:02,362 INFO L226 Difference]: Without dead ends: 10706 [2018-11-23 15:50:02,373 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1978 GetRequests, 1935 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=421, Invalid=1471, Unknown=0, NotChecked=0, Total=1892 [2018-11-23 15:50:02,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10706 states. [2018-11-23 15:50:02,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10706 to 9879. [2018-11-23 15:50:02,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9879 states. [2018-11-23 15:50:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9879 states to 9879 states and 10847 transitions. [2018-11-23 15:50:02,504 INFO L78 Accepts]: Start accepts. Automaton has 9879 states and 10847 transitions. Word has length 961 [2018-11-23 15:50:02,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:50:02,505 INFO L480 AbstractCegarLoop]: Abstraction has 9879 states and 10847 transitions. [2018-11-23 15:50:02,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 15:50:02,505 INFO L276 IsEmpty]: Start isEmpty. Operand 9879 states and 10847 transitions. [2018-11-23 15:50:02,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2018-11-23 15:50:02,515 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:50:02,516 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:50:02,516 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:50:02,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:50:02,516 INFO L82 PathProgramCache]: Analyzing trace with hash -264884215, now seen corresponding path program 1 times [2018-11-23 15:50:02,516 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:50:02,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:50:02,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:50:02,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:50:02,517 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:50:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:50:04,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2866 backedges. 705 proven. 1270 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2018-11-23 15:50:04,212 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:50:04,212 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:50:04,213 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 969 with the following transitions: [2018-11-23 15:50:04,213 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [522], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 15:50:04,215 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:50:04,215 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:50:08,182 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:50:08,182 INFO L272 AbstractInterpreter]: Visited 194 different actions 775 times. Merged at 10 different actions 32 times. Widened at 1 different actions 1 times. Performed 8681 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8681 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 14 fixpoints after 7 different actions. Largest state had 24 variables. [2018-11-23 15:50:08,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:50:08,183 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:50:08,183 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:50:08,183 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 15:50:08,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:50:08,189 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:50:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:50:08,311 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:50:08,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2866 backedges. 854 proven. 2 refuted. 0 times theorem prover too weak. 2010 trivial. 0 not checked. [2018-11-23 15:50:08,623 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:50:09,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2866 backedges. 854 proven. 2 refuted. 0 times theorem prover too weak. 2010 trivial. 0 not checked. [2018-11-23 15:50:09,274 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:50:09,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 20 [2018-11-23 15:50:09,274 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:50:09,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 15:50:09,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 15:50:09,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2018-11-23 15:50:09,275 INFO L87 Difference]: Start difference. First operand 9879 states and 10847 transitions. Second operand 18 states. [2018-11-23 15:50:13,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:50:13,510 INFO L93 Difference]: Finished difference Result 20205 states and 22369 transitions. [2018-11-23 15:50:13,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-11-23 15:50:13,511 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 968 [2018-11-23 15:50:13,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:50:13,524 INFO L225 Difference]: With dead ends: 20205 [2018-11-23 15:50:13,524 INFO L226 Difference]: Without dead ends: 10310 [2018-11-23 15:50:13,534 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2032 GetRequests, 1965 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1292 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=851, Invalid=3705, Unknown=0, NotChecked=0, Total=4556 [2018-11-23 15:50:13,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10310 states. [2018-11-23 15:50:13,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10310 to 9752. [2018-11-23 15:50:13,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9752 states. [2018-11-23 15:50:13,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9752 states to 9752 states and 10526 transitions. [2018-11-23 15:50:13,648 INFO L78 Accepts]: Start accepts. Automaton has 9752 states and 10526 transitions. Word has length 968 [2018-11-23 15:50:13,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:50:13,649 INFO L480 AbstractCegarLoop]: Abstraction has 9752 states and 10526 transitions. [2018-11-23 15:50:13,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 15:50:13,649 INFO L276 IsEmpty]: Start isEmpty. Operand 9752 states and 10526 transitions. [2018-11-23 15:50:13,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1098 [2018-11-23 15:50:13,658 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:50:13,658 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:50:13,658 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:50:13,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:50:13,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1467967182, now seen corresponding path program 1 times [2018-11-23 15:50:13,659 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:50:13,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:50:13,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:50:13,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:50:13,660 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:50:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:50:14,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3737 backedges. 1693 proven. 265 refuted. 0 times theorem prover too weak. 1779 trivial. 0 not checked. [2018-11-23 15:50:14,235 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:50:14,235 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:50:14,236 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1098 with the following transitions: [2018-11-23 15:50:14,236 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 15:50:14,238 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:50:14,238 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:50:18,220 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:50:18,220 INFO L272 AbstractInterpreter]: Visited 195 different actions 781 times. Merged at 12 different actions 34 times. Never widened. Performed 8676 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8676 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-23 15:50:18,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:50:18,221 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:50:18,222 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:50:18,222 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 15:50:18,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:50:18,229 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:50:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:50:18,392 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:50:18,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3737 backedges. 2216 proven. 6 refuted. 0 times theorem prover too weak. 1515 trivial. 0 not checked. [2018-11-23 15:50:18,825 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:50:19,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3737 backedges. 1693 proven. 269 refuted. 0 times theorem prover too weak. 1775 trivial. 0 not checked. [2018-11-23 15:50:19,449 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:50:19,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2018-11-23 15:50:19,449 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:50:19,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 15:50:19,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 15:50:19,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-11-23 15:50:19,450 INFO L87 Difference]: Start difference. First operand 9752 states and 10526 transitions. Second operand 9 states. [2018-11-23 15:50:20,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:50:20,789 INFO L93 Difference]: Finished difference Result 19775 states and 21674 transitions. [2018-11-23 15:50:20,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 15:50:20,789 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1097 [2018-11-23 15:50:20,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:50:20,802 INFO L225 Difference]: With dead ends: 19775 [2018-11-23 15:50:20,802 INFO L226 Difference]: Without dead ends: 11765 [2018-11-23 15:50:20,810 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2222 GetRequests, 2198 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2018-11-23 15:50:20,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11765 states. [2018-11-23 15:50:20,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11765 to 11189. [2018-11-23 15:50:20,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11189 states. [2018-11-23 15:50:20,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11189 states to 11189 states and 12098 transitions. [2018-11-23 15:50:20,918 INFO L78 Accepts]: Start accepts. Automaton has 11189 states and 12098 transitions. Word has length 1097 [2018-11-23 15:50:20,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:50:20,919 INFO L480 AbstractCegarLoop]: Abstraction has 11189 states and 12098 transitions. [2018-11-23 15:50:20,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 15:50:20,919 INFO L276 IsEmpty]: Start isEmpty. Operand 11189 states and 12098 transitions. [2018-11-23 15:50:20,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1397 [2018-11-23 15:50:20,961 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:50:20,961 INFO L402 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:50:20,961 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:50:20,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:50:20,961 INFO L82 PathProgramCache]: Analyzing trace with hash 2008033529, now seen corresponding path program 1 times [2018-11-23 15:50:20,962 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:50:20,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:50:20,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:50:20,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:50:20,962 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:50:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:50:23,112 INFO L134 CoverageAnalysis]: Checked inductivity of 5366 backedges. 1047 proven. 2535 refuted. 0 times theorem prover too weak. 1784 trivial. 0 not checked. [2018-11-23 15:50:23,112 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:50:23,112 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:50:23,112 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1397 with the following transitions: [2018-11-23 15:50:23,112 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [930], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 15:50:23,114 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:50:23,114 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:50:27,189 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:50:27,189 INFO L272 AbstractInterpreter]: Visited 199 different actions 804 times. Merged at 12 different actions 41 times. Widened at 1 different actions 1 times. Performed 8875 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8875 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 17 fixpoints after 7 different actions. Largest state had 24 variables. [2018-11-23 15:50:27,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:50:27,190 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:50:27,190 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:50:27,190 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 15:50:27,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:50:27,196 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:50:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:50:27,341 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:50:27,857 INFO L134 CoverageAnalysis]: Checked inductivity of 5366 backedges. 3084 proven. 2 refuted. 0 times theorem prover too weak. 2280 trivial. 0 not checked. [2018-11-23 15:50:27,857 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:50:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 5366 backedges. 1245 proven. 278 refuted. 0 times theorem prover too weak. 3843 trivial. 0 not checked. [2018-11-23 15:50:28,862 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:50:28,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 21 [2018-11-23 15:50:28,863 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:50:28,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-23 15:50:28,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-23 15:50:28,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2018-11-23 15:50:28,864 INFO L87 Difference]: Start difference. First operand 11189 states and 12098 transitions. Second operand 19 states. [2018-11-23 15:50:32,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:50:32,058 INFO L93 Difference]: Finished difference Result 20983 states and 24038 transitions. [2018-11-23 15:50:32,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-11-23 15:50:32,058 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1396 [2018-11-23 15:50:32,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:50:32,081 INFO L225 Difference]: With dead ends: 20983 [2018-11-23 15:50:32,081 INFO L226 Difference]: Without dead ends: 11720 [2018-11-23 15:50:32,093 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2879 GetRequests, 2822 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=759, Invalid=2433, Unknown=0, NotChecked=0, Total=3192 [2018-11-23 15:50:32,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11720 states. [2018-11-23 15:50:32,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11720 to 11189. [2018-11-23 15:50:32,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11189 states. [2018-11-23 15:50:32,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11189 states to 11189 states and 12090 transitions. [2018-11-23 15:50:32,224 INFO L78 Accepts]: Start accepts. Automaton has 11189 states and 12090 transitions. Word has length 1396 [2018-11-23 15:50:32,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:50:32,225 INFO L480 AbstractCegarLoop]: Abstraction has 11189 states and 12090 transitions. [2018-11-23 15:50:32,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-23 15:50:32,225 INFO L276 IsEmpty]: Start isEmpty. Operand 11189 states and 12090 transitions. [2018-11-23 15:50:32,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1515 [2018-11-23 15:50:32,236 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:50:32,236 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:50:32,237 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:50:32,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:50:32,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1398103861, now seen corresponding path program 1 times [2018-11-23 15:50:32,237 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:50:32,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:50:32,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:50:32,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:50:32,238 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:50:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:50:33,030 INFO L134 CoverageAnalysis]: Checked inductivity of 6489 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 6019 trivial. 0 not checked. [2018-11-23 15:50:33,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:50:33,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 15:50:33,031 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:50:33,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 15:50:33,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 15:50:33,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 15:50:33,032 INFO L87 Difference]: Start difference. First operand 11189 states and 12090 transitions. Second operand 4 states. [2018-11-23 15:50:33,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:50:33,614 INFO L93 Difference]: Finished difference Result 23654 states and 25637 transitions. [2018-11-23 15:50:33,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 15:50:33,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1514 [2018-11-23 15:50:33,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:50:33,615 INFO L225 Difference]: With dead ends: 23654 [2018-11-23 15:50:33,615 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 15:50:33,639 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 15:50:33,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 15:50:33,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 15:50:33,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 15:50:33,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 15:50:33,640 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1514 [2018-11-23 15:50:33,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:50:33,640 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 15:50:33,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 15:50:33,640 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 15:50:33,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 15:50:33,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 15:50:33,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:33,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:33,996 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,054 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,175 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,831 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:34,970 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,115 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,289 WARN L180 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 659 DAG size of output: 542 [2018-11-23 15:50:35,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,408 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,463 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,474 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,475 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,475 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,692 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,797 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,842 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:35,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:50:36,050 WARN L180 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 638 DAG size of output: 522 [2018-11-23 15:50:37,192 WARN L180 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 303 DAG size of output: 91 [2018-11-23 15:50:39,307 WARN L180 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 495 DAG size of output: 102 [2018-11-23 15:50:41,133 WARN L180 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 480 DAG size of output: 106 [2018-11-23 15:50:41,135 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 15:50:41,135 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-11-23 15:50:41,135 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,136 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-23 15:50:41,137 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,138 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-23 15:50:41,139 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-23 15:50:41,140 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-23 15:50:41,141 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-23 15:50:41,141 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-23 15:50:41,141 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,141 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,141 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,141 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-23 15:50:41,141 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-23 15:50:41,141 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-23 15:50:41,141 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-23 15:50:41,141 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-23 15:50:41,141 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-23 15:50:41,141 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse11 (= 8 |old(~a15~0)|)) (.cse6 (= ~a12~0 |old(~a12~0)|)) (.cse8 (= ~a21~0 |old(~a21~0)|)) (.cse14 (= |old(~a15~0)| ~a15~0)) (.cse26 (= 1 ~a24~0)) (.cse23 (= 10 |old(~a21~0)|))) (let ((.cse10 (<= |old(~a12~0)| 80)) (.cse3 (< 6 |old(~a21~0)|)) (.cse15 (= 6 |old(~a15~0)|)) (.cse0 (= 0 |old(~a21~0)|)) (.cse18 (< 76 |old(~a12~0)|)) (.cse21 (= 6 |old(~a21~0)|)) (.cse20 (= 9 |old(~a21~0)|)) (.cse12 (not .cse23)) (.cse19 (<= |old(~a12~0)| 11)) (.cse9 (and .cse6 .cse8 .cse14 .cse26)) (.cse4 (< |old(~a12~0)| 12849)) (.cse22 (< 73282 |old(~a12~0)|)) (.cse7 (= ~a24~0 |old(~a24~0)|)) (.cse17 (and .cse6 .cse8 (= 8 ~a15~0) (= ~a24~0 1))) (.cse1 (not .cse11)) (.cse2 (= |calculate_output_#in~input| 0)) (.cse24 (not (= 7 |old(~a21~0)|))) (.cse13 (< 11 |old(~a12~0)|)) (.cse16 (= 9 |old(~a15~0)|)) (.cse5 (not (= 1 |old(~a24~0)|))) (.cse25 (not (= 8 |old(~a21~0)|)))) (and (or (or .cse0 .cse1 .cse2 .cse3) .cse4 .cse5 (and .cse6 .cse7 .cse8 (= ~a15~0 |old(~a15~0)|))) (or (< |old(~a21~0)| 9) .cse5 .cse9 .cse10 .cse11) (or .cse12 .cse9 .cse5 .cse13 .cse11) (or .cse13 (and .cse6 .cse7 .cse8 .cse14) .cse15 .cse11 .cse3 .cse16) (or .cse17 .cse12 .cse5 .cse1 .cse2 .cse10) (or .cse18 .cse9 .cse5 .cse19 .cse11 .cse3 .cse16) (or .cse9 .cse5 .cse15 .cse11 .cse16) (or .cse9 .cse4 .cse5 .cse15 .cse11) (or .cse1 .cse2 .cse17 (not .cse20) .cse5 .cse13) (or .cse21 .cse5 .cse13 .cse11 .cse16 .cse9) (or .cse9 .cse4 .cse5 .cse22 .cse11) (or .cse21 .cse17 .cse0 .cse18 .cse5 .cse1 .cse2 .cse19) (or .cse21 .cse20 .cse9 .cse5 .cse11 .cse16 .cse23) (or .cse17 .cse12 .cse5 .cse13 .cse1 .cse2) (or .cse24 .cse5 .cse19 .cse11 .cse9) (or .cse17 .cse4 .cse5 .cse1 .cse22 .cse2 .cse25) (or .cse24 (and .cse7 .cse8 .cse14) .cse11 .cse16) (or .cse17 .cse1 .cse2 .cse24 .cse5 .cse13) (or (not .cse16) (and .cse6 .cse8 .cse26 (= 9 ~a15~0)) .cse5 .cse25)))) [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,142 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-23 15:50:41,143 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,144 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,145 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-23 15:50:41,146 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,147 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-23 15:50:41,148 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,149 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-23 15:50:41,150 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-23 15:50:41,151 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-23 15:50:41,151 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 15:50:41,151 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-11-23 15:50:41,151 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 15:50:41,151 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 15:50:41,151 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-11-23 15:50:41,151 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-23 15:50:41,151 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse25 (= ~a21~0 10)) (.cse19 (not (= ~a21~0 0))) (.cse6 (not (= main_~input~0 0))) (.cse10 (= ~a15~0 |old(~a15~0)|)) (.cse7 (= 8 ~a15~0)) (.cse8 (= ~a24~0 1)) (.cse21 (not (= ~a15~0 9))) (.cse15 (= 8 |old(~a15~0)|)) (.cse20 (<= ~a21~0 6)) (.cse3 (= 1 ~a24~0)) (.cse26 (<= 7 |old(~a21~0)|)) (.cse2 (not (= ~a15~0 8))) (.cse24 (not (= 6 ~a21~0))) (.cse22 (not (= ~a15~0 6)))) (let ((.cse0 (and .cse3 .cse26 .cse2 .cse24 .cse22)) (.cse5 (< 11 ~a12~0)) (.cse13 (<= ~a12~0 76)) (.cse17 (and .cse21 .cse3 .cse2 .cse15 .cse20)) (.cse11 (= ~a24~0 |old(~a24~0)|)) (.cse4 (= ~a21~0 7)) (.cse12 (and .cse21 .cse3 .cse26 .cse2 .cse15 .cse24)) (.cse1 (< 80 ~a12~0)) (.cse16 (<= ~a12~0 73282)) (.cse14 (and .cse19 .cse6 .cse26 .cse10 .cse7 .cse8 .cse24)) (.cse18 (<= 12849 ~a12~0)) (.cse23 (and .cse6 .cse8 .cse25)) (.cse9 (<= ~a12~0 11))) (or (and (<= 9 ~a21~0) .cse0 .cse1) (and (and .cse2 .cse3 .cse4) .cse5) (not (= 7 |old(~a21~0)|)) (and (and .cse6 .cse7 .cse8) (= 9 ~a21~0) .cse9) (and (and (and .cse6 (= 7 ~a21~0) .cse10) .cse9) .cse11) (and .cse0 (= 8 ~a21~0)) (not (= 1 |old(~a24~0)|)) (and .cse12 .cse1) (and .cse5 (and .cse13 .cse14)) (not .cse15) (and (and .cse16 .cse17) .cse18) (and .cse5 (and .cse13 .cse17)) (and (and (and .cse19 .cse6 .cse7 .cse20) .cse11) .cse18) (and .cse21 .cse4 .cse2) (and (not (= 10 ~a21~0)) (not (= ~a21~0 9)) .cse12) (not (= 0 (+ |old(~a12~0)| 49))) (and (and .cse21 .cse2 .cse22) .cse3) (and .cse2 .cse21 .cse9 .cse20 .cse22) (and .cse23 .cse1) (and .cse2 .cse21 .cse3 .cse9 .cse24) (and .cse16 (and (= ~a21~0 8) .cse14) .cse18) (and (and .cse3 .cse25 .cse2) .cse9) (and (and .cse2 .cse3 .cse22) .cse18) (and .cse23 .cse9)))) [2018-11-23 15:50:41,151 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-23 15:50:41,152 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-23 15:50:41,152 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse16 (not (= ~a21~0 0))) (.cse7 (= ~a24~0 1)) (.cse9 (= ~a15~0 |old(~a15~0)|)) (.cse18 (not (= ~a15~0 9))) (.cse10 (= 8 |old(~a15~0)|)) (.cse17 (<= ~a21~0 6)) (.cse3 (= 1 ~a24~0)) (.cse22 (<= 7 |old(~a21~0)|)) (.cse2 (not (= ~a15~0 8))) (.cse21 (not (= 6 ~a21~0))) (.cse20 (not (= ~a15~0 6)))) (let ((.cse0 (and .cse3 .cse22 .cse2 .cse21 .cse20)) (.cse1 (< 80 ~a12~0)) (.cse12 (and .cse18 .cse3 .cse2 .cse10 .cse17)) (.cse4 (= ~a21~0 7)) (.cse6 (and .cse18 .cse3 .cse22 .cse2 .cse10 .cse21)) (.cse5 (< 11 ~a12~0)) (.cse19 (and .cse16 .cse7 .cse22 .cse10 .cse9 .cse21)) (.cse15 (<= ~a12~0 76)) (.cse11 (<= ~a12~0 73282)) (.cse14 (= ~a21~0 10)) (.cse8 (<= ~a12~0 11)) (.cse13 (<= 12849 ~a12~0))) (or (and (<= 9 ~a21~0) .cse0 .cse1) (and (and .cse2 .cse3 .cse4) .cse5) (not (= 7 |old(~a21~0)|)) (and .cse0 (= 8 ~a21~0)) (not (= 1 |old(~a24~0)|)) (and .cse6 .cse1) (and (and (and (= 7 ~a21~0) .cse7) .cse8) .cse9) (not .cse10) (and (and .cse11 .cse12) .cse13) (and .cse1 (and .cse7 .cse14)) (and .cse5 (and .cse15 .cse12)) (and (and (and (and .cse16 .cse7) .cse17) .cse9) .cse13) (and .cse18 .cse4 .cse2) (and (not (= 10 ~a21~0)) (not (= ~a21~0 9)) .cse6) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse5 (and .cse15 .cse19)) (and (and .cse18 .cse2 .cse20) .cse3) (and .cse2 .cse18 .cse8 .cse17 .cse20) (and (= 9 ~a21~0) (and .cse19 .cse15)) (and .cse2 .cse18 .cse3 .cse8 .cse21) (and .cse11 (and (= ~a24~0 |old(~a24~0)|) (= ~a21~0 8)) .cse13) (and (and .cse3 .cse14) .cse8) (and (and .cse2 .cse3 .cse20) .cse13)))) [2018-11-23 15:50:41,152 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-11-23 15:50:41,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:50:41 BoogieIcfgContainer [2018-11-23 15:50:41,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 15:50:41,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:50:41,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:50:41,163 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:50:41,164 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:47:16" (3/4) ... [2018-11-23 15:50:41,166 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 15:50:41,171 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 15:50:41,171 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-23 15:50:41,171 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 15:50:41,181 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 15:50:41,182 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 15:50:41,205 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((9 <= a21 && (((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && !(6 == a21)) && !(a15 == 6)) && 80 < a12) || (((!(a15 == 8) && 1 == a24) && a21 == 7) && 11 < a12)) || !(7 == \old(a21))) || (((((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && !(6 == a21)) && !(a15 == 6)) && 8 == a21)) || !(1 == \old(a24))) || ((((((!(a15 == 9) && 1 == a24) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(6 == a21)) && 80 < a12)) || (((7 == a21 && a24 == 1) && a12 <= 11) && a15 == \old(a15))) || !(8 == \old(a15))) || ((a12 <= 73282 && (((!(a15 == 9) && 1 == a24) && !(a15 == 8)) && 8 == \old(a15)) && a21 <= 6) && 12849 <= a12)) || (80 < a12 && a24 == 1 && a21 == 10)) || (11 < a12 && a12 <= 76 && (((!(a15 == 9) && 1 == a24) && !(a15 == 8)) && 8 == \old(a15)) && a21 <= 6)) || ((((!(a21 == 0) && a24 == 1) && a21 <= 6) && a15 == \old(a15)) && 12849 <= a12)) || ((!(a15 == 9) && a21 == 7) && !(a15 == 8))) || ((!(10 == a21) && !(a21 == 9)) && ((((!(a15 == 9) && 1 == a24) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(6 == a21))) || !(0 == \old(a12) + 49)) || (11 < a12 && a12 <= 76 && ((((!(a21 == 0) && a24 == 1) && 7 <= \old(a21)) && 8 == \old(a15)) && a15 == \old(a15)) && !(6 == a21))) || (((!(a15 == 9) && !(a15 == 8)) && !(a15 == 6)) && 1 == a24)) || ((((!(a15 == 8) && !(a15 == 9)) && a12 <= 11) && a21 <= 6) && !(a15 == 6))) || (9 == a21 && (((((!(a21 == 0) && a24 == 1) && 7 <= \old(a21)) && 8 == \old(a15)) && a15 == \old(a15)) && !(6 == a21)) && a12 <= 76)) || ((((!(a15 == 8) && !(a15 == 9)) && 1 == a24) && a12 <= 11) && !(6 == a21))) || ((a12 <= 73282 && a24 == \old(a24) && a21 == 8) && 12849 <= a12)) || ((1 == a24 && a21 == 10) && a12 <= 11)) || (((!(a15 == 8) && 1 == a24) && !(a15 == 6)) && 12849 <= a12) [2018-11-23 15:50:41,275 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_73f4cfac-8fb0-4f40-9371-fec711203e2e/bin-2019/utaipan/witness.graphml [2018-11-23 15:50:41,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:50:41,276 INFO L168 Benchmark]: Toolchain (without parser) took 206048.85 ms. Allocated memory was 1.0 GB in the beginning and 5.0 GB in the end (delta: 4.0 GB). Free memory was 951.1 MB in the beginning and 3.0 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.0 GB. Max. memory is 11.5 GB. [2018-11-23 15:50:41,277 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:50:41,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.78 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 908.1 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-11-23 15:50:41,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 908.1 MB in the beginning and 1.1 GB in the end (delta: -222.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2018-11-23 15:50:41,277 INFO L168 Benchmark]: Boogie Preprocessor took 49.49 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-23 15:50:41,278 INFO L168 Benchmark]: RCFGBuilder took 1033.79 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: 122.6 MB). Peak memory consumption was 122.6 MB. Max. memory is 11.5 GB. [2018-11-23 15:50:41,278 INFO L168 Benchmark]: TraceAbstraction took 204350.49 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.8 GB). Free memory was 1.0 GB in the beginning and 3.0 GB in the end (delta: -2.0 GB). Peak memory consumption was 4.4 GB. Max. memory is 11.5 GB. [2018-11-23 15:50:41,278 INFO L168 Benchmark]: Witness Printer took 112.12 ms. Allocated memory is still 5.0 GB. Free memory was 3.0 GB in the beginning and 3.0 GB in the end (delta: 4.3 kB). Peak memory consumption was 4.3 kB. Max. memory is 11.5 GB. [2018-11-23 15:50:41,279 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 415.78 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 908.1 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 83.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 908.1 MB in the beginning and 1.1 GB in the end (delta: -222.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.49 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1033.79 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: 122.6 MB). Peak memory consumption was 122.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 204350.49 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.8 GB). Free memory was 1.0 GB in the beginning and 3.0 GB in the end (delta: -2.0 GB). Peak memory consumption was 4.4 GB. Max. memory is 11.5 GB. * Witness Printer took 112.12 ms. Allocated memory is still 5.0 GB. Free memory was 3.0 GB in the beginning and 3.0 GB in the end (delta: 4.3 kB). Peak memory consumption was 4.3 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((9 <= a21 && (((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && !(6 == a21)) && !(a15 == 6)) && 80 < a12) || (((!(a15 == 8) && 1 == a24) && a21 == 7) && 11 < a12)) || !(7 == \old(a21))) || (((((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && !(6 == a21)) && !(a15 == 6)) && 8 == a21)) || !(1 == \old(a24))) || ((((((!(a15 == 9) && 1 == a24) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(6 == a21)) && 80 < a12)) || (((7 == a21 && a24 == 1) && a12 <= 11) && a15 == \old(a15))) || !(8 == \old(a15))) || ((a12 <= 73282 && (((!(a15 == 9) && 1 == a24) && !(a15 == 8)) && 8 == \old(a15)) && a21 <= 6) && 12849 <= a12)) || (80 < a12 && a24 == 1 && a21 == 10)) || (11 < a12 && a12 <= 76 && (((!(a15 == 9) && 1 == a24) && !(a15 == 8)) && 8 == \old(a15)) && a21 <= 6)) || ((((!(a21 == 0) && a24 == 1) && a21 <= 6) && a15 == \old(a15)) && 12849 <= a12)) || ((!(a15 == 9) && a21 == 7) && !(a15 == 8))) || ((!(10 == a21) && !(a21 == 9)) && ((((!(a15 == 9) && 1 == a24) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(6 == a21))) || !(0 == \old(a12) + 49)) || (11 < a12 && a12 <= 76 && ((((!(a21 == 0) && a24 == 1) && 7 <= \old(a21)) && 8 == \old(a15)) && a15 == \old(a15)) && !(6 == a21))) || (((!(a15 == 9) && !(a15 == 8)) && !(a15 == 6)) && 1 == a24)) || ((((!(a15 == 8) && !(a15 == 9)) && a12 <= 11) && a21 <= 6) && !(a15 == 6))) || (9 == a21 && (((((!(a21 == 0) && a24 == 1) && 7 <= \old(a21)) && 8 == \old(a15)) && a15 == \old(a15)) && !(6 == a21)) && a12 <= 76)) || ((((!(a15 == 8) && !(a15 == 9)) && 1 == a24) && a12 <= 11) && !(6 == a21))) || ((a12 <= 73282 && a24 == \old(a24) && a21 == 8) && 12849 <= a12)) || ((1 == a24 && a21 == 10) && a12 <= 11)) || (((!(a15 == 8) && 1 == a24) && !(a15 == 6)) && 12849 <= a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 204.2s OverallTime, 17 OverallIterations, 12 TraceHistogramMax, 114.2s AutomataDifference, 0.0s DeadEndRemovalTime, 7.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 2226 SDtfs, 40823 SDslu, 4415 SDs, 0 SdLazy, 50207 SolverSat, 7063 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 93.0s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 16884 GetRequests, 16378 SyntacticMatches, 19 SemanticMatches, 487 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7113 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11189occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 54.0s AbstIntTime, 13 AbstIntIterations, 4 AbstIntStrong, 0.9970503006962547 AbsIntWeakeningRatio, 0.09476661951909476 AbsIntAvgWeakeningVarsNumRemoved, 16.123762376237625 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 4113 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 398 PreInvPairs, 546 NumberOfFragments, 1511 HoareAnnotationTreeSize, 398 FomulaSimplifications, 317999 FormulaSimplificationTreeSizeReduction, 2.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 131301 FormulaSimplificationTreeSizeReductionInter, 5.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 18022 NumberOfCodeBlocks, 18022 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 25383 ConstructedInterpolants, 0 QuantifiedInterpolants, 99256702 SizeOfPredicates, 27 NumberOfNonLiveVariables, 10643 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 35 InterpolantComputations, 4 PerfectInterpolantSequences, 60914/69892 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...