./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label55_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label55_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/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 6dacd915ddcb2eb31881c9efdd8e6c888fdc7dc2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 19:02:18,389 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 19:02:18,390 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 19:02:18,396 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 19:02:18,396 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 19:02:18,397 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 19:02:18,397 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 19:02:18,398 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 19:02:18,399 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 19:02:18,400 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 19:02:18,400 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 19:02:18,400 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 19:02:18,401 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 19:02:18,402 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 19:02:18,402 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 19:02:18,403 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 19:02:18,403 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 19:02:18,404 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 19:02:18,405 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 19:02:18,406 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 19:02:18,406 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 19:02:18,407 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 19:02:18,408 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 19:02:18,409 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 19:02:18,409 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 19:02:18,409 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 19:02:18,410 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 19:02:18,410 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 19:02:18,411 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 19:02:18,411 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 19:02:18,411 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 19:02:18,412 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 19:02:18,412 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 19:02:18,412 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 19:02:18,412 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 19:02:18,413 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 19:02:18,413 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 19:02:18,421 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 19:02:18,421 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 19:02:18,421 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 19:02:18,422 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 19:02:18,422 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 19:02:18,422 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 19:02:18,422 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 19:02:18,422 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 19:02:18,422 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 19:02:18,422 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 19:02:18,422 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 19:02:18,423 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 19:02:18,423 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 19:02:18,423 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 19:02:18,423 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 19:02:18,423 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 19:02:18,423 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 19:02:18,424 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 19:02:18,424 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 19:02:18,424 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 19:02:18,424 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 19:02:18,424 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 19:02:18,424 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 19:02:18,424 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 19:02:18,424 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 19:02:18,424 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 19:02:18,424 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 19:02:18,424 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 19:02:18,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:02:18,425 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 19:02:18,425 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 19:02:18,425 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 19:02:18,425 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 19:02:18,425 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 19:02:18,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 19:02:18,425 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 19:02:18,425 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_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/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 -> 6dacd915ddcb2eb31881c9efdd8e6c888fdc7dc2 [2018-12-08 19:02:18,442 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 19:02:18,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 19:02:18,451 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 19:02:18,452 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 19:02:18,452 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 19:02:18,453 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label55_true-unreach-call_false-termination.c [2018-12-08 19:02:18,488 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/data/1db28a1ba/835d9736abad49a1ac0c382dabc2f501/FLAGdcc191efb [2018-12-08 19:02:18,955 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 19:02:18,956 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/sv-benchmarks/c/eca-rers2012/Problem01_label55_true-unreach-call_false-termination.c [2018-12-08 19:02:18,962 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/data/1db28a1ba/835d9736abad49a1ac0c382dabc2f501/FLAGdcc191efb [2018-12-08 19:02:18,971 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/data/1db28a1ba/835d9736abad49a1ac0c382dabc2f501 [2018-12-08 19:02:18,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 19:02:18,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 19:02:18,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 19:02:18,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 19:02:18,976 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 19:02:18,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:02:18" (1/1) ... [2018-12-08 19:02:18,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2caf47c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:18, skipping insertion in model container [2018-12-08 19:02:18,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:02:18" (1/1) ... [2018-12-08 19:02:18,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 19:02:19,005 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 19:02:19,175 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:02:19,178 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 19:02:19,224 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:02:19,282 INFO L195 MainTranslator]: Completed translation [2018-12-08 19:02:19,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:19 WrapperNode [2018-12-08 19:02:19,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 19:02:19,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 19:02:19,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 19:02:19,283 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 19:02:19,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:19" (1/1) ... [2018-12-08 19:02:19,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:19" (1/1) ... [2018-12-08 19:02:19,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 19:02:19,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 19:02:19,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 19:02:19,303 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 19:02:19,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:19" (1/1) ... [2018-12-08 19:02:19,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:19" (1/1) ... [2018-12-08 19:02:19,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:19" (1/1) ... [2018-12-08 19:02:19,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:19" (1/1) ... [2018-12-08 19:02:19,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:19" (1/1) ... [2018-12-08 19:02:19,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:19" (1/1) ... [2018-12-08 19:02:19,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:19" (1/1) ... [2018-12-08 19:02:19,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 19:02:19,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 19:02:19,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 19:02:19,341 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 19:02:19,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:02:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 19:02:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 19:02:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-08 19:02:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-08 19:02:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 19:02:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 19:02:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 19:02:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 19:02:19,917 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 19:02:19,917 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 19:02:19,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:02:19 BoogieIcfgContainer [2018-12-08 19:02:19,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 19:02:19,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 19:02:19,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 19:02:19,921 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 19:02:19,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:02:18" (1/3) ... [2018-12-08 19:02:19,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd092c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:02:19, skipping insertion in model container [2018-12-08 19:02:19,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:19" (2/3) ... [2018-12-08 19:02:19,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd092c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:02:19, skipping insertion in model container [2018-12-08 19:02:19,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:02:19" (3/3) ... [2018-12-08 19:02:19,923 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label55_true-unreach-call_false-termination.c [2018-12-08 19:02:19,929 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 19:02:19,934 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 19:02:19,944 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 19:02:19,964 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 19:02:19,964 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 19:02:19,965 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 19:02:19,965 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 19:02:19,965 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 19:02:19,965 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 19:02:19,965 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 19:02:19,965 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 19:02:19,979 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-12-08 19:02:19,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-12-08 19:02:19,985 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:19,986 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:19,988 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:19,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:19,991 INFO L82 PathProgramCache]: Analyzing trace with hash -462333177, now seen corresponding path program 1 times [2018-12-08 19:02:19,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:02:20,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:20,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:20,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:20,024 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:02:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:20,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:02:20,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:02:20,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 19:02:20,235 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 19:02:20,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 19:02:20,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 19:02:20,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:02:20,248 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2018-12-08 19:02:20,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:02:20,692 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2018-12-08 19:02:20,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 19:02:20,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2018-12-08 19:02:20,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:02:20,702 INFO L225 Difference]: With dead ends: 547 [2018-12-08 19:02:20,702 INFO L226 Difference]: Without dead ends: 278 [2018-12-08 19:02:20,705 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:02:20,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-12-08 19:02:20,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2018-12-08 19:02:20,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-08 19:02:20,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 406 transitions. [2018-12-08 19:02:20,747 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 406 transitions. Word has length 117 [2018-12-08 19:02:20,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:02:20,747 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 406 transitions. [2018-12-08 19:02:20,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 19:02:20,747 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 406 transitions. [2018-12-08 19:02:20,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-12-08 19:02:20,750 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:20,750 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:20,751 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:20,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:20,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1604702730, now seen corresponding path program 1 times [2018-12-08 19:02:20,751 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:02:20,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:20,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:20,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:20,752 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:02:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:20,841 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:02:20,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:02:20,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 19:02:20,841 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 19:02:20,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 19:02:20,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 19:02:20,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 19:02:20,843 INFO L87 Difference]: Start difference. First operand 278 states and 406 transitions. Second operand 5 states. [2018-12-08 19:02:21,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:02:21,237 INFO L93 Difference]: Finished difference Result 840 states and 1253 transitions. [2018-12-08 19:02:21,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 19:02:21,238 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2018-12-08 19:02:21,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:02:21,241 INFO L225 Difference]: With dead ends: 840 [2018-12-08 19:02:21,241 INFO L226 Difference]: Without dead ends: 568 [2018-12-08 19:02:21,242 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 19:02:21,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2018-12-08 19:02:21,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 558. [2018-12-08 19:02:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2018-12-08 19:02:21,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 788 transitions. [2018-12-08 19:02:21,262 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 788 transitions. Word has length 126 [2018-12-08 19:02:21,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:02:21,262 INFO L480 AbstractCegarLoop]: Abstraction has 558 states and 788 transitions. [2018-12-08 19:02:21,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 19:02:21,263 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 788 transitions. [2018-12-08 19:02:21,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-12-08 19:02:21,264 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:21,264 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:21,265 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:21,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:21,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1555807011, now seen corresponding path program 1 times [2018-12-08 19:02:21,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:02:21,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:21,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:21,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:21,266 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:02:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:21,348 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:02:21,349 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 19:02:21,349 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 19:02:21,349 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-12-08 19:02:21,351 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 19:02:21,383 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 19:02:21,383 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 19:02:21,846 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 19:02:21,847 INFO L272 AbstractInterpreter]: Visited 121 different actions 235 times. Merged at 3 different actions 3 times. Never widened. Performed 3263 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3263 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-08 19:02:21,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:21,852 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 19:02:22,052 INFO L227 lantSequenceWeakener]: Weakened 134 states. On average, predicates are now at 81.92% of their original sizes. [2018-12-08 19:02:22,053 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 19:02:22,109 INFO L418 sIntCurrentIteration]: We unified 136 AI predicates to 136 [2018-12-08 19:02:22,109 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 19:02:22,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 19:02:22,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-08 19:02:22,110 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 19:02:22,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 19:02:22,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 19:02:22,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 19:02:22,112 INFO L87 Difference]: Start difference. First operand 558 states and 788 transitions. Second operand 10 states. [2018-12-08 19:02:25,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:02:25,703 INFO L93 Difference]: Finished difference Result 1901 states and 2752 transitions. [2018-12-08 19:02:25,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-08 19:02:25,703 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 137 [2018-12-08 19:02:25,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:02:25,707 INFO L225 Difference]: With dead ends: 1901 [2018-12-08 19:02:25,707 INFO L226 Difference]: Without dead ends: 1349 [2018-12-08 19:02:25,708 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-12-08 19:02:25,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2018-12-08 19:02:25,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 697. [2018-12-08 19:02:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2018-12-08 19:02:25,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 939 transitions. [2018-12-08 19:02:25,732 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 939 transitions. Word has length 137 [2018-12-08 19:02:25,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:02:25,733 INFO L480 AbstractCegarLoop]: Abstraction has 697 states and 939 transitions. [2018-12-08 19:02:25,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 19:02:25,733 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 939 transitions. [2018-12-08 19:02:25,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-12-08 19:02:25,735 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:25,736 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:25,736 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:25,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:25,736 INFO L82 PathProgramCache]: Analyzing trace with hash 830818489, now seen corresponding path program 1 times [2018-12-08 19:02:25,736 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:02:25,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:25,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:25,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:25,737 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:02:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:25,849 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:02:25,849 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 19:02:25,849 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 19:02:25,849 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 145 with the following transitions: [2018-12-08 19:02:25,850 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 19:02:25,853 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 19:02:25,854 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 19:02:25,999 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 19:02:25,999 INFO L272 AbstractInterpreter]: Visited 121 different actions 236 times. Merged at 4 different actions 4 times. Never widened. Performed 3168 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3168 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-08 19:02:26,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:26,001 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 19:02:26,119 INFO L227 lantSequenceWeakener]: Weakened 141 states. On average, predicates are now at 81.9% of their original sizes. [2018-12-08 19:02:26,119 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 19:02:26,176 INFO L418 sIntCurrentIteration]: We unified 143 AI predicates to 143 [2018-12-08 19:02:26,176 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 19:02:26,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 19:02:26,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-12-08 19:02:26,177 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 19:02:26,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 19:02:26,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 19:02:26,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 19:02:26,178 INFO L87 Difference]: Start difference. First operand 697 states and 939 transitions. Second operand 10 states. [2018-12-08 19:02:28,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:02:28,324 INFO L93 Difference]: Finished difference Result 1662 states and 2205 transitions. [2018-12-08 19:02:28,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 19:02:28,324 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 144 [2018-12-08 19:02:28,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:02:28,326 INFO L225 Difference]: With dead ends: 1662 [2018-12-08 19:02:28,326 INFO L226 Difference]: Without dead ends: 971 [2018-12-08 19:02:28,327 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-08 19:02:28,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2018-12-08 19:02:28,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 969. [2018-12-08 19:02:28,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2018-12-08 19:02:28,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1236 transitions. [2018-12-08 19:02:28,344 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1236 transitions. Word has length 144 [2018-12-08 19:02:28,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:02:28,344 INFO L480 AbstractCegarLoop]: Abstraction has 969 states and 1236 transitions. [2018-12-08 19:02:28,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 19:02:28,344 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1236 transitions. [2018-12-08 19:02:28,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-12-08 19:02:28,347 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:28,347 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:28,347 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:28,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:28,347 INFO L82 PathProgramCache]: Analyzing trace with hash 469138834, now seen corresponding path program 1 times [2018-12-08 19:02:28,347 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:02:28,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:28,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:28,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:28,348 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:02:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:28,425 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-08 19:02:28,425 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 19:02:28,426 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 19:02:28,426 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-12-08 19:02:28,426 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 19:02:28,428 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 19:02:28,428 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 19:02:28,655 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 19:02:28,655 INFO L272 AbstractInterpreter]: Visited 123 different actions 487 times. Merged at 7 different actions 27 times. Never widened. Performed 6927 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6927 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-08 19:02:28,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:28,657 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 19:02:28,657 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 19:02:28,658 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 19:02:28,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:28,665 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 19:02:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:28,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:02:28,758 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-08 19:02:28,758 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 19:02:28,806 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-08 19:02:28,822 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 19:02:28,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-12-08 19:02:28,822 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 19:02:28,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 19:02:28,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 19:02:28,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-08 19:02:28,823 INFO L87 Difference]: Start difference. First operand 969 states and 1236 transitions. Second operand 8 states. [2018-12-08 19:02:30,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:02:30,401 INFO L93 Difference]: Finished difference Result 2933 states and 3963 transitions. [2018-12-08 19:02:30,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-12-08 19:02:30,401 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2018-12-08 19:02:30,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:02:30,405 INFO L225 Difference]: With dead ends: 2933 [2018-12-08 19:02:30,405 INFO L226 Difference]: Without dead ends: 1819 [2018-12-08 19:02:30,406 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2018-12-08 19:02:30,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2018-12-08 19:02:30,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1527. [2018-12-08 19:02:30,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1527 states. [2018-12-08 19:02:30,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1773 transitions. [2018-12-08 19:02:30,431 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1773 transitions. Word has length 155 [2018-12-08 19:02:30,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:02:30,431 INFO L480 AbstractCegarLoop]: Abstraction has 1527 states and 1773 transitions. [2018-12-08 19:02:30,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 19:02:30,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1773 transitions. [2018-12-08 19:02:30,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-12-08 19:02:30,434 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:30,434 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:30,434 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:30,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:30,434 INFO L82 PathProgramCache]: Analyzing trace with hash -769454370, now seen corresponding path program 1 times [2018-12-08 19:02:30,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:02:30,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:30,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:30,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:30,435 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:02:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 73 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-08 19:02:30,503 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 19:02:30,503 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 19:02:30,503 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 183 with the following transitions: [2018-12-08 19:02:30,503 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 19:02:30,506 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 19:02:30,506 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 19:02:30,602 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 19:02:30,602 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 times. Merged at 4 different actions 4 times. Never widened. Performed 3238 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3238 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-08 19:02:30,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:30,604 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 19:02:30,747 INFO L227 lantSequenceWeakener]: Weakened 179 states. On average, predicates are now at 81.82% of their original sizes. [2018-12-08 19:02:30,747 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 19:02:30,821 INFO L418 sIntCurrentIteration]: We unified 181 AI predicates to 181 [2018-12-08 19:02:30,821 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 19:02:30,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 19:02:30,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-08 19:02:30,821 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 19:02:30,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 19:02:30,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 19:02:30,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 19:02:30,822 INFO L87 Difference]: Start difference. First operand 1527 states and 1773 transitions. Second operand 10 states. [2018-12-08 19:02:32,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:02:32,643 INFO L93 Difference]: Finished difference Result 3050 states and 3596 transitions. [2018-12-08 19:02:32,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-08 19:02:32,643 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 182 [2018-12-08 19:02:32,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:02:32,648 INFO L225 Difference]: With dead ends: 3050 [2018-12-08 19:02:32,648 INFO L226 Difference]: Without dead ends: 1801 [2018-12-08 19:02:32,650 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-08 19:02:32,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2018-12-08 19:02:32,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1799. [2018-12-08 19:02:32,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1799 states. [2018-12-08 19:02:32,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2066 transitions. [2018-12-08 19:02:32,678 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2066 transitions. Word has length 182 [2018-12-08 19:02:32,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:02:32,679 INFO L480 AbstractCegarLoop]: Abstraction has 1799 states and 2066 transitions. [2018-12-08 19:02:32,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 19:02:32,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2066 transitions. [2018-12-08 19:02:32,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-12-08 19:02:32,681 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:32,681 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:32,681 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:32,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:32,682 INFO L82 PathProgramCache]: Analyzing trace with hash -131879047, now seen corresponding path program 1 times [2018-12-08 19:02:32,682 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:02:32,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:32,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:32,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:32,682 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:02:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:32,747 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 70 proven. 29 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-12-08 19:02:32,747 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 19:02:32,748 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 19:02:32,748 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-12-08 19:02:32,748 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 19:02:32,749 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 19:02:32,750 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 19:02:32,983 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 19:02:32,983 INFO L272 AbstractInterpreter]: Visited 124 different actions 493 times. Merged at 8 different actions 30 times. Never widened. Performed 7049 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7049 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-08 19:02:32,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:32,986 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 19:02:32,986 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 19:02:32,986 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 19:02:32,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:32,992 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 19:02:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:33,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:02:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-08 19:02:33,066 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 19:02:33,121 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 75 proven. 22 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-08 19:02:33,137 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 19:02:33,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-12-08 19:02:33,137 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 19:02:33,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 19:02:33,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 19:02:33,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-12-08 19:02:33,138 INFO L87 Difference]: Start difference. First operand 1799 states and 2066 transitions. Second operand 11 states. [2018-12-08 19:02:34,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:02:34,114 INFO L93 Difference]: Finished difference Result 6388 states and 7728 transitions. [2018-12-08 19:02:34,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 19:02:34,114 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 190 [2018-12-08 19:02:34,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:02:34,123 INFO L225 Difference]: With dead ends: 6388 [2018-12-08 19:02:34,123 INFO L226 Difference]: Without dead ends: 5002 [2018-12-08 19:02:34,125 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 383 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2018-12-08 19:02:34,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5002 states. [2018-12-08 19:02:34,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5002 to 4861. [2018-12-08 19:02:34,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4861 states. [2018-12-08 19:02:34,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4861 states to 4861 states and 5730 transitions. [2018-12-08 19:02:34,181 INFO L78 Accepts]: Start accepts. Automaton has 4861 states and 5730 transitions. Word has length 190 [2018-12-08 19:02:34,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:02:34,181 INFO L480 AbstractCegarLoop]: Abstraction has 4861 states and 5730 transitions. [2018-12-08 19:02:34,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 19:02:34,181 INFO L276 IsEmpty]: Start isEmpty. Operand 4861 states and 5730 transitions. [2018-12-08 19:02:34,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-12-08 19:02:34,186 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:34,186 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:34,186 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:34,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:34,187 INFO L82 PathProgramCache]: Analyzing trace with hash -770071325, now seen corresponding path program 2 times [2018-12-08 19:02:34,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:02:34,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:34,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:34,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:34,187 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:02:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:34,248 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 70 proven. 31 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-08 19:02:34,249 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 19:02:34,249 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 19:02:34,249 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 19:02:34,249 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 19:02:34,249 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 19:02:34,249 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/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 [2018-12-08 19:02:34,255 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 19:02:34,256 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 19:02:34,293 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-08 19:02:34,293 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 19:02:34,297 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:02:34,325 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-12-08 19:02:34,325 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 19:02:34,358 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-12-08 19:02:34,373 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-08 19:02:34,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-12-08 19:02:34,374 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 19:02:34,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 19:02:34,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 19:02:34,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-12-08 19:02:34,374 INFO L87 Difference]: Start difference. First operand 4861 states and 5730 transitions. Second operand 3 states. [2018-12-08 19:02:34,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:02:34,663 INFO L93 Difference]: Finished difference Result 11630 states and 14026 transitions. [2018-12-08 19:02:34,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 19:02:34,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2018-12-08 19:02:34,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:02:34,676 INFO L225 Difference]: With dead ends: 11630 [2018-12-08 19:02:34,676 INFO L226 Difference]: Without dead ends: 7047 [2018-12-08 19:02:34,681 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 379 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-12-08 19:02:34,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7047 states. [2018-12-08 19:02:34,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7047 to 5965. [2018-12-08 19:02:34,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5965 states. [2018-12-08 19:02:34,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5965 states to 5965 states and 7054 transitions. [2018-12-08 19:02:34,751 INFO L78 Accepts]: Start accepts. Automaton has 5965 states and 7054 transitions. Word has length 190 [2018-12-08 19:02:34,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:02:34,752 INFO L480 AbstractCegarLoop]: Abstraction has 5965 states and 7054 transitions. [2018-12-08 19:02:34,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 19:02:34,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5965 states and 7054 transitions. [2018-12-08 19:02:34,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-12-08 19:02:34,758 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:34,759 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:34,759 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:34,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:34,759 INFO L82 PathProgramCache]: Analyzing trace with hash 686529897, now seen corresponding path program 1 times [2018-12-08 19:02:34,759 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:02:34,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:34,759 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 19:02:34,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:34,760 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:02:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:34,856 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 111 proven. 52 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-08 19:02:34,856 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 19:02:34,856 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 19:02:34,856 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-12-08 19:02:34,856 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [93], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [173], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 19:02:34,858 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 19:02:34,858 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 19:02:35,006 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 19:02:35,007 INFO L272 AbstractInterpreter]: Visited 123 different actions 361 times. Merged at 6 different actions 12 times. Never widened. Performed 4803 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4803 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-08 19:02:35,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:35,008 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 19:02:35,161 INFO L227 lantSequenceWeakener]: Weakened 217 states. On average, predicates are now at 83.32% of their original sizes. [2018-12-08 19:02:35,162 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 19:02:35,207 INFO L418 sIntCurrentIteration]: We unified 219 AI predicates to 219 [2018-12-08 19:02:35,207 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 19:02:35,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 19:02:35,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-12-08 19:02:35,207 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 19:02:35,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 19:02:35,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 19:02:35,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-08 19:02:35,208 INFO L87 Difference]: Start difference. First operand 5965 states and 7054 transitions. Second operand 9 states. [2018-12-08 19:02:37,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:02:37,257 INFO L93 Difference]: Finished difference Result 12067 states and 14380 transitions. [2018-12-08 19:02:37,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 19:02:37,257 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 220 [2018-12-08 19:02:37,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:02:37,267 INFO L225 Difference]: With dead ends: 12067 [2018-12-08 19:02:37,268 INFO L226 Difference]: Without dead ends: 6652 [2018-12-08 19:02:37,272 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-12-08 19:02:37,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6652 states. [2018-12-08 19:02:37,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6652 to 6513. [2018-12-08 19:02:37,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6513 states. [2018-12-08 19:02:37,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6513 states to 6513 states and 7664 transitions. [2018-12-08 19:02:37,336 INFO L78 Accepts]: Start accepts. Automaton has 6513 states and 7664 transitions. Word has length 220 [2018-12-08 19:02:37,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:02:37,337 INFO L480 AbstractCegarLoop]: Abstraction has 6513 states and 7664 transitions. [2018-12-08 19:02:37,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 19:02:37,337 INFO L276 IsEmpty]: Start isEmpty. Operand 6513 states and 7664 transitions. [2018-12-08 19:02:37,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-12-08 19:02:37,344 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:37,344 INFO L402 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:37,344 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:37,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:37,344 INFO L82 PathProgramCache]: Analyzing trace with hash -2054284233, now seen corresponding path program 1 times [2018-12-08 19:02:37,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:02:37,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:37,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:37,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:37,345 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:02:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:37,425 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 165 proven. 52 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-12-08 19:02:37,425 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 19:02:37,426 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 19:02:37,426 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-12-08 19:02:37,426 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [93], [94], [98], [102], [105], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-08 19:02:37,427 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 19:02:37,427 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 19:02:37,713 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 19:02:37,713 INFO L272 AbstractInterpreter]: Visited 124 different actions 493 times. Merged at 8 different actions 30 times. Widened at 1 different actions 1 times. Performed 7116 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7116 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-08 19:02:37,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:37,719 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 19:02:37,719 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 19:02:37,719 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/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 [2018-12-08 19:02:37,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:37,724 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 19:02:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:37,777 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:02:37,810 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2018-12-08 19:02:37,810 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 19:02:37,863 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2018-12-08 19:02:37,878 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-08 19:02:37,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-12-08 19:02:37,878 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 19:02:37,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 19:02:37,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 19:02:37,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-08 19:02:37,879 INFO L87 Difference]: Start difference. First operand 6513 states and 7664 transitions. Second operand 3 states. [2018-12-08 19:02:38,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:02:38,075 INFO L93 Difference]: Finished difference Result 7055 states and 8298 transitions. [2018-12-08 19:02:38,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 19:02:38,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2018-12-08 19:02:38,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:02:38,076 INFO L225 Difference]: With dead ends: 7055 [2018-12-08 19:02:38,076 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 19:02:38,081 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 470 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-08 19:02:38,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 19:02:38,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 19:02:38,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 19:02:38,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 19:02:38,082 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2018-12-08 19:02:38,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:02:38,082 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 19:02:38,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 19:02:38,082 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 19:02:38,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 19:02:38,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 19:02:38,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,196 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,203 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,206 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,213 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,234 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,238 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,241 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,245 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:38,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 19:02:39,242 WARN L180 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 107 [2018-12-08 19:02:39,380 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2018-12-08 19:02:39,507 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 57 [2018-12-08 19:02:39,508 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 19:02:39,508 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= |old(~a20~0)| ~a20~0)) [2018-12-08 19:02:39,508 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 19:02:39,508 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-12-08 19:02:39,508 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-12-08 19:02:39,509 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-12-08 19:02:39,510 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-12-08 19:02:39,511 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-12-08 19:02:39,512 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-12-08 19:02:39,513 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-12-08 19:02:39,514 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-12-08 19:02:39,515 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-12-08 19:02:39,516 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-12-08 19:02:39,517 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-12-08 19:02:39,517 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse19 (= 1 |old(~a20~0)|))) (let ((.cse17 (not (= 1 |old(~a7~0)|))) (.cse14 (= 6 |old(~a16~0)|)) (.cse27 (= ~a16~0 6)) (.cse9 (not (= 1 |old(~a21~0)|))) (.cse25 (not .cse19)) (.cse26 (= 0 |old(~a16~0)|)) (.cse12 (not (= 8 ~a12~0))) (.cse7 (= |calculate_output_#in~input| 0)) (.cse13 (not (= 1 |old(~a17~0)|)))) (let ((.cse6 (= ~a17~0 1)) (.cse22 (or .cse9 .cse25 .cse26 .cse12 .cse7 (= 0 |old(~a8~0)|) .cse13)) (.cse18 (< |old(~a20~0)| 1)) (.cse1 (< |old(~a8~0)| 15)) (.cse23 (not (= ~a16~0 0))) (.cse20 (= ~a21~0 1)) (.cse2 (<= ~a17~0 0)) (.cse15 (= 13 |old(~a8~0)|)) (.cse8 (not (= 0 |old(~a7~0)|))) (.cse10 (not (= 15 |old(~a8~0)|))) (.cse11 (not (= 5 |old(~a16~0)|))) (.cse0 (< 0 |old(~a17~0)|)) (.cse21 (= ~a16~0 5)) (.cse5 (= |old(~a20~0)| ~a20~0)) (.cse16 (not .cse27)) (.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse4 (= |old(~a8~0)| ~a8~0)) (.cse24 (let ((.cse28 (< 13 |old(~a8~0)|))) (and (or .cse28 .cse17) (or .cse14 .cse28))))) (and (or .cse0 .cse1 .cse2) (or (and .cse3 .cse4 .cse5) .cse1) (or .cse6 .cse7 (or .cse8 .cse9 .cse10 (not (= 0 |old(~a20~0)|)) .cse11 .cse12 .cse13)) (or .cse14 .cse15 .cse16 .cse17 .cse0) (or .cse14 .cse15 (and .cse3 .cse4 .cse5 .cse16 .cse2) .cse18 .cse0) (or .cse8 .cse9 .cse12 .cse7 .cse19 .cse10 .cse11 (and .cse20 .cse21)) (or .cse8 .cse10 .cse21 .cse11 .cse22) (or (and .cse3 .cse23 .cse4 .cse6 .cse20 (= ~a20~0 1)) .cse22) (or .cse18 .cse24 .cse0 .cse2) (or .cse14 .cse16 .cse19 .cse1) (or .cse14 .cse8 .cse9 .cse12 .cse0 .cse7 (and .cse23 .cse20) .cse25 .cse10 .cse26) (or .cse7 (or (not .cse14) .cse8 .cse9 .cse25 .cse10 (not (= 0 |old(~a17~0)|)) .cse12) (and .cse20 (and (= ~a17~0 0) .cse27))) (or (and .cse3 .cse4 .cse5 .cse2) (or .cse15 .cse0 (< 0 |old(~a20~0)|))) (or (or .cse8 .cse9 .cse10 .cse11 .cse12 .cse7 .cse0) .cse21) (or (and .cse5 (or (and .cse3 .cse4 .cse16) (and .cse3 (= 1 ~a7~0) .cse4))) .cse24))))) [2018-12-08 19:02:39,517 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-12-08 19:02:39,517 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,517 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,517 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,517 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,517 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-12-08 19:02:39,517 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,517 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,517 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-12-08 19:02:39,517 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-12-08 19:02:39,518 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,519 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 509) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-12-08 19:02:39,520 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 19:02:39,521 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= ~a17~0 1) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (= ~a16~0 5)) [2018-12-08 19:02:39,521 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 19:02:39,521 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 19:02:39,521 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 8 ~a12~0)) (and (= ~a17~0 1) (= ~a21~0 1) (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= ~a20~0 1) (= ~a16~0 5)) (not (= 1 |old(~a17~0)|))) [2018-12-08 19:02:39,521 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-12-08 19:02:39,521 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (not (= ~a16~0 6))) (.cse1 (<= ~a17~0 0))) (or (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and (not (= ~a16~0 0)) (not (= main_~input~0 0)) (not (= ~a8~0 0)) (= ~a17~0 1) (= ~a21~0 1) (= ~a20~0 1)) (not (= 0 |old(~a7~0)|)) (and .cse0 .cse1) (let ((.cse2 (<= ~a8~0 13))) (or (and .cse2 (= 1 ~a7~0)) (and .cse2 .cse0))) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (<= 15 ~a8~0) (and .cse1 (not (= ~a8~0 13)) (<= ~a20~0 0)))) [2018-12-08 19:02:39,521 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-12-08 19:02:39,521 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-12-08 19:02:39,521 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (not (= ~a16~0 6))) (.cse1 (<= ~a17~0 0))) (or (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 0 |old(~a7~0)|)) (and (not (= ~a16~0 0)) (not (= ~a8~0 0)) (= ~a17~0 1) (= ~a21~0 1) (= ~a20~0 1)) (and .cse0 .cse1) (let ((.cse2 (<= ~a8~0 13))) (or (and .cse2 (= 1 ~a7~0)) (and .cse2 .cse0))) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (<= 15 ~a8~0) (and .cse1 (not (= ~a8~0 13)) (<= ~a20~0 0)))) [2018-12-08 19:02:39,521 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-12-08 19:02:39,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:02:39 BoogieIcfgContainer [2018-12-08 19:02:39,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 19:02:39,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 19:02:39,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 19:02:39,531 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 19:02:39,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:02:19" (3/4) ... [2018-12-08 19:02:39,535 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 19:02:39,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 19:02:39,540 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-08 19:02:39,540 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 19:02:39,548 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-08 19:02:39,549 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 19:02:39,567 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(1 == \old(a21)) || !(8 == a12)) || !(1 == \old(a20))) || !(5 == \old(a16))) || !(0 == \old(a7))) || ((((!(a16 == 0) && !(a8 == 0)) && a17 == 1) && a21 == 1) && a20 == 1)) || (!(a16 == 6) && a17 <= 0)) || (a8 <= 13 && 1 == a7) || (a8 <= 13 && !(a16 == 6))) || !(1 == \old(a17))) || !(15 == \old(a8))) || 15 <= a8) || ((a17 <= 0 && !(a8 == 13)) && a20 <= 0) [2018-12-08 19:02:39,612 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6078d6aa-bf6f-43f7-ba4b-3688de3c9082/bin-2019/utaipan/witness.graphml [2018-12-08 19:02:39,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 19:02:39,612 INFO L168 Benchmark]: Toolchain (without parser) took 20639.47 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.2 GB). Free memory was 948.1 MB in the beginning and 1.2 GB in the end (delta: -218.8 MB). Peak memory consumption was 979.8 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:39,613 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:02:39,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 948.1 MB in the beginning and 1.2 GB in the end (delta: -215.8 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:39,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:39,613 INFO L168 Benchmark]: Boogie Preprocessor took 38.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:39,613 INFO L168 Benchmark]: RCFGBuilder took 576.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 109.6 MB). Peak memory consumption was 109.6 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:39,614 INFO L168 Benchmark]: TraceAbstraction took 19612.36 ms. Allocated memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -148.4 MB). Peak memory consumption was 877.7 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:39,614 INFO L168 Benchmark]: Witness Printer took 80.74 ms. Allocated memory is still 2.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:39,615 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 308.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 948.1 MB in the beginning and 1.2 GB in the end (delta: -215.8 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 576.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 109.6 MB). Peak memory consumption was 109.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19612.36 ms. Allocated memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -148.4 MB). Peak memory consumption was 877.7 MB. Max. memory is 11.5 GB. * Witness Printer took 80.74 ms. Allocated memory is still 2.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 509]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((!(1 == \old(a21)) || !(8 == a12)) || !(1 == \old(a20))) || !(5 == \old(a16))) || !(0 == \old(a7))) || ((((!(a16 == 0) && !(a8 == 0)) && a17 == 1) && a21 == 1) && a20 == 1)) || (!(a16 == 6) && a17 <= 0)) || (a8 <= 13 && 1 == a7) || (a8 <= 13 && !(a16 == 6))) || !(1 == \old(a17))) || !(15 == \old(a8))) || 15 <= a8) || ((a17 <= 0 && !(a8 == 13)) && a20 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 19.5s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 13.5s AutomataDifference, 0.0s DeadEndRemovalTime, 1.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 616 SDtfs, 6720 SDslu, 585 SDs, 0 SdLazy, 9071 SolverSat, 1452 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 2349 GetRequests, 2207 SyntacticMatches, 9 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6513occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.6s AbstIntTime, 7 AbstIntIterations, 4 AbstIntStrong, 0.9968739938177931 AbsIntWeakeningRatio, 0.23269513991163476 AbsIntAvgWeakeningVarsNumRemoved, 28.384388807069218 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 2320 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 178 PreInvPairs, 294 NumberOfFragments, 727 HoareAnnotationTreeSize, 178 FomulaSimplifications, 14864 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5581 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 2468 NumberOfCodeBlocks, 2404 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 3221 ConstructedInterpolants, 0 QuantifiedInterpolants, 1260476 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2065 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 1714/1933 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...