./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label28_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_53b2d471-054b-4359-840f-412175576ef6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label28_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/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 3b05d579dd12f755368a6bf22b0fd6149bd3ba2b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 08:25:53,480 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 08:25:53,481 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 08:25:53,486 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 08:25:53,487 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 08:25:53,487 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 08:25:53,488 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 08:25:53,489 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 08:25:53,489 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 08:25:53,490 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 08:25:53,490 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 08:25:53,490 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 08:25:53,491 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 08:25:53,491 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 08:25:53,492 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 08:25:53,492 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 08:25:53,493 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 08:25:53,494 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 08:25:53,495 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 08:25:53,495 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 08:25:53,496 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 08:25:53,497 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 08:25:53,498 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 08:25:53,498 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 08:25:53,498 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 08:25:53,499 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 08:25:53,499 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 08:25:53,500 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 08:25:53,500 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 08:25:53,501 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 08:25:53,501 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 08:25:53,501 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 08:25:53,501 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 08:25:53,501 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 08:25:53,502 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 08:25:53,502 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 08:25:53,502 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 08:25:53,510 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 08:25:53,510 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 08:25:53,510 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 08:25:53,510 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 08:25:53,511 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 08:25:53,511 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 08:25:53,511 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 08:25:53,511 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 08:25:53,511 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 08:25:53,511 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 08:25:53,511 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 08:25:53,511 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 08:25:53,512 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 08:25:53,512 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 08:25:53,512 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 08:25:53,512 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 08:25:53,512 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 08:25:53,513 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 08:25:53,513 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 08:25:53,513 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 08:25:53,513 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 08:25:53,513 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 08:25:53,513 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 08:25:53,513 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 08:25:53,513 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 08:25:53,514 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 08:25:53,514 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 08:25:53,514 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 08:25:53,514 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 08:25:53,514 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 08:25:53,514 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 08:25:53,514 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 08:25:53,514 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 08:25:53,515 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 08:25:53,515 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 08:25:53,515 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 08:25:53,515 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_53b2d471-054b-4359-840f-412175576ef6/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 -> 3b05d579dd12f755368a6bf22b0fd6149bd3ba2b [2018-12-09 08:25:53,532 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 08:25:53,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 08:25:53,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 08:25:53,542 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 08:25:53,542 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 08:25:53,542 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label28_true-unreach-call_false-termination.c [2018-12-09 08:25:53,576 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/bin-2019/utaipan/data/5136db482/644d57bf62844bfda997d0d921a65de2/FLAGd2012070f [2018-12-09 08:25:53,995 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 08:25:53,995 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/sv-benchmarks/c/eca-rers2012/Problem01_label28_true-unreach-call_false-termination.c [2018-12-09 08:25:54,003 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/bin-2019/utaipan/data/5136db482/644d57bf62844bfda997d0d921a65de2/FLAGd2012070f [2018-12-09 08:25:54,013 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/bin-2019/utaipan/data/5136db482/644d57bf62844bfda997d0d921a65de2 [2018-12-09 08:25:54,014 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 08:25:54,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 08:25:54,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 08:25:54,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 08:25:54,018 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 08:25:54,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:25:54" (1/1) ... [2018-12-09 08:25:54,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54724d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:54, skipping insertion in model container [2018-12-09 08:25:54,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:25:54" (1/1) ... [2018-12-09 08:25:54,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 08:25:54,048 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 08:25:54,222 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:25:54,225 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 08:25:54,328 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:25:54,340 INFO L195 MainTranslator]: Completed translation [2018-12-09 08:25:54,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:54 WrapperNode [2018-12-09 08:25:54,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 08:25:54,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 08:25:54,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 08:25:54,341 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 08:25:54,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:54" (1/1) ... [2018-12-09 08:25:54,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:54" (1/1) ... [2018-12-09 08:25:54,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 08:25:54,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 08:25:54,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 08:25:54,365 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 08:25:54,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:54" (1/1) ... [2018-12-09 08:25:54,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:54" (1/1) ... [2018-12-09 08:25:54,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:54" (1/1) ... [2018-12-09 08:25:54,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:54" (1/1) ... [2018-12-09 08:25:54,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:54" (1/1) ... [2018-12-09 08:25:54,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:54" (1/1) ... [2018-12-09 08:25:54,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:54" (1/1) ... [2018-12-09 08:25:54,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 08:25:54,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 08:25:54,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 08:25:54,415 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 08:25:54,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/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 [2018-12-09 08:25:54,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 08:25:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 08:25:54,460 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-09 08:25:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-09 08:25:54,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 08:25:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 08:25:54,461 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 08:25:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 08:25:55,104 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 08:25:55,104 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 08:25:55,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:25:55 BoogieIcfgContainer [2018-12-09 08:25:55,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 08:25:55,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 08:25:55,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 08:25:55,108 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 08:25:55,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:25:54" (1/3) ... [2018-12-09 08:25:55,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d43cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:25:55, skipping insertion in model container [2018-12-09 08:25:55,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:54" (2/3) ... [2018-12-09 08:25:55,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d43cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:25:55, skipping insertion in model container [2018-12-09 08:25:55,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:25:55" (3/3) ... [2018-12-09 08:25:55,110 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label28_true-unreach-call_false-termination.c [2018-12-09 08:25:55,118 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 08:25:55,124 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 08:25:55,134 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 08:25:55,162 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 08:25:55,162 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 08:25:55,162 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 08:25:55,162 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 08:25:55,162 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 08:25:55,162 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 08:25:55,162 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 08:25:55,163 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 08:25:55,175 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-12-09 08:25:55,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-12-09 08:25:55,181 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:25:55,182 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] [2018-12-09 08:25:55,184 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:25:55,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:25:55,187 INFO L82 PathProgramCache]: Analyzing trace with hash -199989281, now seen corresponding path program 1 times [2018-12-09 08:25:55,189 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:25:55,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:25:55,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:25:55,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:25:55,219 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:25:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:25:55,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:25:55,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:25:55,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 08:25:55,451 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:25:55,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 08:25:55,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 08:25:55,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 08:25:55,464 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2018-12-09 08:25:56,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:25:56,094 INFO L93 Difference]: Finished difference Result 698 states and 1223 transitions. [2018-12-09 08:25:56,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 08:25:56,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2018-12-09 08:25:56,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:25:56,103 INFO L225 Difference]: With dead ends: 698 [2018-12-09 08:25:56,103 INFO L226 Difference]: Without dead ends: 413 [2018-12-09 08:25:56,106 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 08:25:56,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2018-12-09 08:25:56,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 278. [2018-12-09 08:25:56,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-09 08:25:56,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2018-12-09 08:25:56,141 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 99 [2018-12-09 08:25:56,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:25:56,142 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2018-12-09 08:25:56,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 08:25:56,142 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2018-12-09 08:25:56,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-12-09 08:25:56,144 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:25:56,144 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 08:25:56,145 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:25:56,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:25:56,145 INFO L82 PathProgramCache]: Analyzing trace with hash 732624616, now seen corresponding path program 1 times [2018-12-09 08:25:56,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:25:56,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:25:56,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:25:56,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:25:56,146 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:25:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:25:56,210 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:25:56,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:25:56,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 08:25:56,211 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:25:56,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 08:25:56,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 08:25:56,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 08:25:56,213 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 6 states. [2018-12-09 08:25:56,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:25:56,577 INFO L93 Difference]: Finished difference Result 840 states and 1243 transitions. [2018-12-09 08:25:56,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 08:25:56,577 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-12-09 08:25:56,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:25:56,580 INFO L225 Difference]: With dead ends: 840 [2018-12-09 08:25:56,580 INFO L226 Difference]: Without dead ends: 568 [2018-12-09 08:25:56,581 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-09 08:25:56,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2018-12-09 08:25:56,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 556. [2018-12-09 08:25:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-12-09 08:25:56,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 798 transitions. [2018-12-09 08:25:56,605 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 798 transitions. Word has length 109 [2018-12-09 08:25:56,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:25:56,605 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 798 transitions. [2018-12-09 08:25:56,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 08:25:56,605 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 798 transitions. [2018-12-09 08:25:56,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-12-09 08:25:56,608 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:25:56,608 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 08:25:56,609 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:25:56,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:25:56,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1967237378, now seen corresponding path program 1 times [2018-12-09 08:25:56,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:25:56,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:25:56,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:25:56,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:25:56,610 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:25:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:25:56,701 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:25:56,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:25:56,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 08:25:56,701 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:25:56,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 08:25:56,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 08:25:56,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 08:25:56,702 INFO L87 Difference]: Start difference. First operand 556 states and 798 transitions. Second operand 6 states. [2018-12-09 08:25:57,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:25:57,066 INFO L93 Difference]: Finished difference Result 1537 states and 2260 transitions. [2018-12-09 08:25:57,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 08:25:57,066 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-12-09 08:25:57,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:25:57,069 INFO L225 Difference]: With dead ends: 1537 [2018-12-09 08:25:57,069 INFO L226 Difference]: Without dead ends: 987 [2018-12-09 08:25:57,070 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-09 08:25:57,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2018-12-09 08:25:57,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 977. [2018-12-09 08:25:57,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2018-12-09 08:25:57,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1387 transitions. [2018-12-09 08:25:57,088 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1387 transitions. Word has length 122 [2018-12-09 08:25:57,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:25:57,088 INFO L480 AbstractCegarLoop]: Abstraction has 977 states and 1387 transitions. [2018-12-09 08:25:57,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 08:25:57,088 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1387 transitions. [2018-12-09 08:25:57,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-12-09 08:25:57,090 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:25:57,090 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 08:25:57,090 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:25:57,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:25:57,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1893643415, now seen corresponding path program 1 times [2018-12-09 08:25:57,091 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:25:57,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:25:57,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:25:57,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:25:57,091 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:25:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:25:57,149 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:25:57,149 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 08:25:57,149 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 08:25:57,150 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 134 with the following transitions: [2018-12-09 08:25:57,151 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [65], [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], [437], [439], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 08:25:57,177 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 08:25:57,177 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 08:25:57,537 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 08:25:57,538 INFO L272 AbstractInterpreter]: Visited 103 different actions 199 times. Merged at 3 different actions 3 times. Never widened. Performed 2872 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2872 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-09 08:25:57,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:25:57,543 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 08:25:57,761 INFO L227 lantSequenceWeakener]: Weakened 130 states. On average, predicates are now at 81.57% of their original sizes. [2018-12-09 08:25:57,762 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 08:25:57,819 INFO L418 sIntCurrentIteration]: We unified 132 AI predicates to 132 [2018-12-09 08:25:57,819 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 08:25:57,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 08:25:57,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-09 08:25:57,820 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:25:57,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 08:25:57,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 08:25:57,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 08:25:57,821 INFO L87 Difference]: Start difference. First operand 977 states and 1387 transitions. Second operand 10 states. [2018-12-09 08:26:01,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:26:01,020 INFO L93 Difference]: Finished difference Result 2602 states and 3745 transitions. [2018-12-09 08:26:01,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-09 08:26:01,020 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 133 [2018-12-09 08:26:01,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:26:01,023 INFO L225 Difference]: With dead ends: 2602 [2018-12-09 08:26:01,023 INFO L226 Difference]: Without dead ends: 1631 [2018-12-09 08:26:01,024 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-12-09 08:26:01,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2018-12-09 08:26:01,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 979. [2018-12-09 08:26:01,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 979 states. [2018-12-09 08:26:01,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1336 transitions. [2018-12-09 08:26:01,042 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1336 transitions. Word has length 133 [2018-12-09 08:26:01,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:26:01,042 INFO L480 AbstractCegarLoop]: Abstraction has 979 states and 1336 transitions. [2018-12-09 08:26:01,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 08:26:01,042 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1336 transitions. [2018-12-09 08:26:01,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-12-09 08:26:01,043 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:26:01,043 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 08:26:01,044 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:26:01,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:26:01,044 INFO L82 PathProgramCache]: Analyzing trace with hash 114736532, now seen corresponding path program 1 times [2018-12-09 08:26:01,044 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:26:01,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:26:01,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:26:01,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:26:01,045 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:26:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:26:01,114 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 47 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 08:26:01,114 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 08:26:01,114 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 08:26:01,114 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-12-09 08:26:01,114 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [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], [437], [439], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 08:26:01,117 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 08:26:01,117 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 08:26:01,213 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 08:26:01,213 INFO L272 AbstractInterpreter]: Visited 104 different actions 202 times. Merged at 4 different actions 4 times. Never widened. Performed 2767 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2767 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-09 08:26:01,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:26:01,214 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 08:26:01,327 INFO L227 lantSequenceWeakener]: Weakened 142 states. On average, predicates are now at 81.55% of their original sizes. [2018-12-09 08:26:01,327 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 08:26:01,367 INFO L418 sIntCurrentIteration]: We unified 144 AI predicates to 144 [2018-12-09 08:26:01,367 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 08:26:01,367 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 08:26:01,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-09 08:26:01,367 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:26:01,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 08:26:01,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 08:26:01,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 08:26:01,368 INFO L87 Difference]: Start difference. First operand 979 states and 1336 transitions. Second operand 10 states. [2018-12-09 08:26:03,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:26:03,259 INFO L93 Difference]: Finished difference Result 2226 states and 3001 transitions. [2018-12-09 08:26:03,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 08:26:03,259 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2018-12-09 08:26:03,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:26:03,264 INFO L225 Difference]: With dead ends: 2226 [2018-12-09 08:26:03,264 INFO L226 Difference]: Without dead ends: 1253 [2018-12-09 08:26:03,266 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 152 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-09 08:26:03,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2018-12-09 08:26:03,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1251. [2018-12-09 08:26:03,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1251 states. [2018-12-09 08:26:03,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1633 transitions. [2018-12-09 08:26:03,297 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1633 transitions. Word has length 145 [2018-12-09 08:26:03,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:26:03,297 INFO L480 AbstractCegarLoop]: Abstraction has 1251 states and 1633 transitions. [2018-12-09 08:26:03,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 08:26:03,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1633 transitions. [2018-12-09 08:26:03,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-12-09 08:26:03,301 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:26:03,301 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 08:26:03,301 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:26:03,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:26:03,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1787569115, now seen corresponding path program 1 times [2018-12-09 08:26:03,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:26:03,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:26:03,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:26:03,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:26:03,303 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:26:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:26:03,345 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 59 proven. 14 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-12-09 08:26:03,346 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 08:26:03,346 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 08:26:03,346 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-12-09 08:26:03,346 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [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], [437], [439], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 08:26:03,348 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 08:26:03,348 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 08:26:03,501 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 08:26:03,502 INFO L272 AbstractInterpreter]: Visited 105 different actions 311 times. Merged at 6 different actions 16 times. Never widened. Performed 4416 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4416 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-09 08:26:03,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:26:03,503 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 08:26:03,651 INFO L227 lantSequenceWeakener]: Weakened 153 states. On average, predicates are now at 83.32% of their original sizes. [2018-12-09 08:26:03,651 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 08:26:03,685 INFO L418 sIntCurrentIteration]: We unified 155 AI predicates to 155 [2018-12-09 08:26:03,685 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 08:26:03,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 08:26:03,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2018-12-09 08:26:03,685 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:26:03,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 08:26:03,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 08:26:03,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 08:26:03,686 INFO L87 Difference]: Start difference. First operand 1251 states and 1633 transitions. Second operand 9 states. [2018-12-09 08:26:05,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:26:05,331 INFO L93 Difference]: Finished difference Result 2526 states and 3397 transitions. [2018-12-09 08:26:05,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 08:26:05,331 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2018-12-09 08:26:05,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:26:05,335 INFO L225 Difference]: With dead ends: 2526 [2018-12-09 08:26:05,335 INFO L226 Difference]: Without dead ends: 1553 [2018-12-09 08:26:05,337 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 162 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-12-09 08:26:05,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2018-12-09 08:26:05,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1535. [2018-12-09 08:26:05,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1535 states. [2018-12-09 08:26:05,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 1979 transitions. [2018-12-09 08:26:05,366 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 1979 transitions. Word has length 156 [2018-12-09 08:26:05,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:26:05,366 INFO L480 AbstractCegarLoop]: Abstraction has 1535 states and 1979 transitions. [2018-12-09 08:26:05,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 08:26:05,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 1979 transitions. [2018-12-09 08:26:05,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-12-09 08:26:05,368 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:26:05,368 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2018-12-09 08:26:05,369 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:26:05,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:26:05,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1995266330, now seen corresponding path program 1 times [2018-12-09 08:26:05,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:26:05,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:26:05,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:26:05,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:26:05,369 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:26:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:26:05,406 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 79 proven. 20 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-12-09 08:26:05,406 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 08:26:05,407 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 08:26:05,407 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 176 with the following transitions: [2018-12-09 08:26:05,407 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [49], [50], [54], [58], [62], [65], [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], [437], [439], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 08:26:05,409 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 08:26:05,409 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 08:26:05,701 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 08:26:05,701 INFO L272 AbstractInterpreter]: Visited 107 different actions 532 times. Merged at 9 different actions 40 times. Widened at 1 different actions 1 times. Performed 8015 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8015 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 12 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-09 08:26:05,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:26:05,703 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 08:26:05,703 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 08:26:05,703 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/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 [2018-12-09 08:26:05,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:26:05,710 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 08:26:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:26:05,777 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:26:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-12-09 08:26:05,822 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 08:26:05,891 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 79 proven. 20 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-12-09 08:26:05,913 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 08:26:05,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-12-09 08:26:05,914 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 08:26:05,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 08:26:05,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 08:26:05,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-09 08:26:05,915 INFO L87 Difference]: Start difference. First operand 1535 states and 1979 transitions. Second operand 8 states. [2018-12-09 08:26:07,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:26:07,382 INFO L93 Difference]: Finished difference Result 4611 states and 6159 transitions. [2018-12-09 08:26:07,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-09 08:26:07,383 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2018-12-09 08:26:07,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:26:07,383 INFO L225 Difference]: With dead ends: 4611 [2018-12-09 08:26:07,383 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 08:26:07,389 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2018-12-09 08:26:07,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 08:26:07,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 08:26:07,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 08:26:07,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 08:26:07,389 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 175 [2018-12-09 08:26:07,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:26:07,390 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 08:26:07,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 08:26:07,390 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 08:26:07,390 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 08:26:07,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 08:26:08,030 WARN L180 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 85 [2018-12-09 08:26:08,148 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 56 [2018-12-09 08:26:08,288 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 53 [2018-12-09 08:26:08,289 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 08:26:08,290 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(~a16~0)| ~a16~0)) [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-12-09 08:26:08,290 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 455) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-12-09 08:26:08,291 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,292 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-12-09 08:26:08,293 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-12-09 08:26:08,294 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-12-09 08:26:08,295 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse18 (= 1 |old(~a20~0)|))) (let ((.cse12 (and (= |old(~a7~0)| |old(~a20~0)|) .cse18)) (.cse4 (not (= 1 |old(~a21~0)|))) (.cse5 (= 13 |old(~a8~0)|))) (let ((.cse0 (= 6 |old(~a16~0)|)) (.cse14 (or (not (= 1 ~a20~0)) (not (= ~a20~0 ~a7~0)))) (.cse15 (= ~a20~0 1)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse7 (= ~a17~0 1)) (.cse8 (= ~a21~0 1)) (.cse16 (let ((.cse17 (not .cse18))) (and (or .cse4 .cse17 .cse12) (or .cse4 .cse17 (not (= 4 |old(~a16~0)|)) (not .cse5))))) (.cse6 (= 0 |old(~a16~0)|)) (.cse9 (not (= 8 ~a12~0))) (.cse10 (= |calculate_output_#in~input| 0)) (.cse11 (= 0 |old(~a8~0)|)) (.cse13 (not (= 1 |old(~a17~0)|))) (.cse2 (= |old(~a8~0)| ~a8~0)) (.cse3 (= |old(~a16~0)| ~a16~0))) (and (or .cse0 (and .cse1 .cse2 .cse3)) (or .cse4 .cse5 .cse6 (and .cse7 .cse8) .cse9 .cse10 .cse11 .cse12 .cse13) (or (and .cse1 .cse2 .cse3 .cse14) .cse5 .cse12) (or (and .cse2 .cse3 .cse15) .cse16 .cse6 .cse9 .cse10 .cse11 .cse13) (or .cse0 .cse12 .cse14) (or .cse10 (or .cse15 (= ~a20~0 0)) (or (not (= 0 |old(~a7~0)|)) .cse4 (not (= 15 |old(~a8~0)|)) (not (= 0 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) .cse9 .cse13)) (or (and .cse1 .cse7 .cse8) .cse16 .cse6 .cse9 .cse10 .cse11 .cse13) (or (< 13 |old(~a8~0)|) (and (= 1 ~a7~0) .cse2 .cse3) (not (= 1 |old(~a7~0)|))))))) [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-12-09 08:26:08,296 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-09 08:26:08,297 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-12-09 08:26:08,297 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-12-09 08:26:08,297 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-12-09 08:26:08,297 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-12-09 08:26:08,297 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-12-09 08:26:08,297 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-12-09 08:26:08,297 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-12-09 08:26:08,297 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-12-09 08:26:08,297 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,297 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,297 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,297 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,298 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,298 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-12-09 08:26:08,298 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,298 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-12-09 08:26:08,298 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-12-09 08:26:08,298 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-12-09 08:26:08,298 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-12-09 08:26:08,298 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-09 08:26:08,298 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-12-09 08:26:08,298 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-12-09 08:26:08,298 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-12-09 08:26:08,298 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-12-09 08:26:08,298 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-09 08:26:08,299 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-09 08:26:08,300 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-12-09 08:26:08,300 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-12-09 08:26:08,300 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-12-09 08:26:08,300 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-12-09 08:26:08,300 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-12-09 08:26:08,300 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 08:26:08,300 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)) [2018-12-09 08:26:08,300 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 08:26:08,300 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 08:26:08,300 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 1) (= ~a21~0 1) (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= ~a20~0 1) (= ~a16~0 5)) (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)) (not (= 1 |old(~a17~0)|))) [2018-12-09 08:26:08,300 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-12-09 08:26:08,301 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (or (not (= 1 ~a20~0)) (not (= ~a20~0 ~a7~0))))) (or (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (not (= ~a16~0 6)) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and (<= ~a8~0 13) (= 1 ~a7~0)) (and .cse0 (not (= ~a8~0 13))) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (and (and (not (= main_~input~0 0)) .cse0 (= ~a20~0 1)) (= ~a17~0 1) (= ~a21~0 1)) (not (= 15 |old(~a8~0)|)))) [2018-12-09 08:26:08,301 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-12-09 08:26:08,301 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-12-09 08:26:08,301 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (or (not (= 1 ~a20~0)) (not (= ~a20~0 ~a7~0))))) (or (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (not (= ~a16~0 6)) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and (<= ~a8~0 13) (= 1 ~a7~0)) (and .cse0 (not (= ~a8~0 13))) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (and (and (= ~a17~0 1) .cse0 (= ~a20~0 1)) (= ~a21~0 1)) (not (= 15 |old(~a8~0)|)))) [2018-12-09 08:26:08,301 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-12-09 08:26:08,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:26:08 BoogieIcfgContainer [2018-12-09 08:26:08,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 08:26:08,309 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 08:26:08,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 08:26:08,310 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 08:26:08,310 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:25:55" (3/4) ... [2018-12-09 08:26:08,312 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 08:26:08,315 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 08:26:08,315 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-09 08:26:08,315 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 08:26:08,321 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 08:26:08,322 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 08:26:08,340 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(1 == \old(a21)) || !(8 == a12)) || !(a16 == 6)) || !(1 == \old(a20))) || !(5 == \old(a16))) || (a8 <= 13 && 1 == a7)) || ((!(1 == a20) || !(a20 == a7)) && !(a8 == 13))) || !(0 == \old(a7))) || !(1 == \old(a17))) || (((a17 == 1 && (!(1 == a20) || !(a20 == a7))) && a20 == 1) && a21 == 1)) || !(15 == \old(a8)) [2018-12-09 08:26:08,401 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_53b2d471-054b-4359-840f-412175576ef6/bin-2019/utaipan/witness.graphml [2018-12-09 08:26:08,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 08:26:08,402 INFO L168 Benchmark]: Toolchain (without parser) took 14386.80 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 704.1 MB). Free memory was 947.0 MB in the beginning and 842.4 MB in the end (delta: 104.6 MB). Peak memory consumption was 808.7 MB. Max. memory is 11.5 GB. [2018-12-09 08:26:08,402 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:26:08,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -138.0 MB). Peak memory consumption was 35.5 MB. Max. memory is 11.5 GB. [2018-12-09 08:26:08,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 08:26:08,402 INFO L168 Benchmark]: Boogie Preprocessor took 49.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 08:26:08,403 INFO L168 Benchmark]: RCFGBuilder took 689.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 971.8 MB in the end (delta: 105.1 MB). Peak memory consumption was 105.1 MB. Max. memory is 11.5 GB. [2018-12-09 08:26:08,403 INFO L168 Benchmark]: TraceAbstraction took 13204.09 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 601.9 MB). Free memory was 969.1 MB in the beginning and 858.8 MB in the end (delta: 110.4 MB). Peak memory consumption was 712.3 MB. Max. memory is 11.5 GB. [2018-12-09 08:26:08,403 INFO L168 Benchmark]: Witness Printer took 91.58 ms. Allocated memory is still 1.7 GB. Free memory was 858.8 MB in the beginning and 842.4 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. [2018-12-09 08:26:08,404 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 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 325.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -138.0 MB). Peak memory consumption was 35.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 689.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 971.8 MB in the end (delta: 105.1 MB). Peak memory consumption was 105.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13204.09 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 601.9 MB). Free memory was 969.1 MB in the beginning and 858.8 MB in the end (delta: 110.4 MB). Peak memory consumption was 712.3 MB. Max. memory is 11.5 GB. * Witness Printer took 91.58 ms. Allocated memory is still 1.7 GB. Free memory was 858.8 MB in the beginning and 842.4 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 455]: 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)) || !(a16 == 6)) || !(1 == \old(a20))) || !(5 == \old(a16))) || (a8 <= 13 && 1 == a7)) || ((!(1 == a20) || !(a20 == a7)) && !(a8 == 13))) || !(0 == \old(a7))) || !(1 == \old(a17))) || (((a17 == 1 && (!(1 == a20) || !(a20 == a7))) && a20 == 1) && a21 == 1)) || !(15 == \old(a8)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 13.1s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 9.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 356 SDtfs, 4765 SDslu, 436 SDs, 0 SdLazy, 6366 SolverSat, 1320 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 871 GetRequests, 776 SyntacticMatches, 4 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1535occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.9s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9960092008384028 AbsIntWeakeningRatio, 0.2853828306264501 AbsIntAvgWeakeningVarsNumRemoved, 28.17633410672854 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 829 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 76 PreInvPairs, 142 NumberOfFragments, 520 HoareAnnotationTreeSize, 76 FomulaSimplifications, 18589 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5666 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 1114 NumberOfCodeBlocks, 1114 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1280 ConstructedInterpolants, 0 QuantifiedInterpolants, 336707 SizeOfPredicates, 1 NumberOfNonLiveVariables, 613 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 692/765 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...