./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label14_true-unreach-call.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_94d9ec32-7f70-4c8a-86e8-301de7f2370b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label14_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/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 2d05d1de5597bdaeecbf29f7010022c1cc3574fd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 14:59:43,403 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 14:59:43,404 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 14:59:43,410 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 14:59:43,410 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 14:59:43,411 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 14:59:43,411 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 14:59:43,412 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 14:59:43,413 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 14:59:43,413 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 14:59:43,414 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 14:59:43,414 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 14:59:43,414 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 14:59:43,415 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 14:59:43,415 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 14:59:43,416 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 14:59:43,416 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 14:59:43,417 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 14:59:43,418 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 14:59:43,419 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 14:59:43,419 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 14:59:43,420 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 14:59:43,421 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 14:59:43,421 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 14:59:43,421 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 14:59:43,422 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 14:59:43,422 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 14:59:43,423 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 14:59:43,423 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 14:59:43,423 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 14:59:43,424 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 14:59:43,424 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 14:59:43,424 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 14:59:43,424 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 14:59:43,425 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 14:59:43,425 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 14:59:43,425 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 14:59:43,432 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 14:59:43,432 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 14:59:43,433 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 14:59:43,433 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 14:59:43,433 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 14:59:43,433 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 14:59:43,433 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 14:59:43,434 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 14:59:43,434 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 14:59:43,434 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 14:59:43,434 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 14:59:43,434 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 14:59:43,434 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 14:59:43,435 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 14:59:43,435 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 14:59:43,435 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 14:59:43,435 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 14:59:43,435 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 14:59:43,435 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 14:59:43,435 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 14:59:43,436 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 14:59:43,436 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 14:59:43,436 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 14:59:43,436 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 14:59:43,436 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 14:59:43,436 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 14:59:43,436 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 14:59:43,436 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 14:59:43,437 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 14:59:43,437 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 14:59:43,437 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 14:59:43,437 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 14:59:43,437 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 14:59:43,437 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 14:59:43,437 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 14:59:43,438 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 14:59:43,438 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_94d9ec32-7f70-4c8a-86e8-301de7f2370b/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 -> 2d05d1de5597bdaeecbf29f7010022c1cc3574fd [2018-12-09 14:59:43,456 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 14:59:43,464 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 14:59:43,467 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 14:59:43,468 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 14:59:43,468 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 14:59:43,469 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label14_true-unreach-call.c [2018-12-09 14:59:43,515 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/bin-2019/utaipan/data/c14d22040/88519773011b4f9a83a5c04ac37676e6/FLAG371e42275 [2018-12-09 14:59:43,939 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 14:59:43,939 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/sv-benchmarks/c/eca-rers2012/Problem10_label14_true-unreach-call.c [2018-12-09 14:59:43,946 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/bin-2019/utaipan/data/c14d22040/88519773011b4f9a83a5c04ac37676e6/FLAG371e42275 [2018-12-09 14:59:43,955 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/bin-2019/utaipan/data/c14d22040/88519773011b4f9a83a5c04ac37676e6 [2018-12-09 14:59:43,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 14:59:43,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 14:59:43,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 14:59:43,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 14:59:43,961 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 14:59:43,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:59:43" (1/1) ... [2018-12-09 14:59:43,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fdfc843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:59:43, skipping insertion in model container [2018-12-09 14:59:43,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:59:43" (1/1) ... [2018-12-09 14:59:43,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 14:59:43,993 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 14:59:44,169 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 14:59:44,172 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 14:59:44,270 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 14:59:44,282 INFO L195 MainTranslator]: Completed translation [2018-12-09 14:59:44,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:59:44 WrapperNode [2018-12-09 14:59:44,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 14:59:44,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 14:59:44,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 14:59:44,283 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 14:59:44,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:59:44" (1/1) ... [2018-12-09 14:59:44,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:59:44" (1/1) ... [2018-12-09 14:59:44,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 14:59:44,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 14:59:44,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 14:59:44,305 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 14:59:44,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:59:44" (1/1) ... [2018-12-09 14:59:44,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:59:44" (1/1) ... [2018-12-09 14:59:44,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:59:44" (1/1) ... [2018-12-09 14:59:44,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:59:44" (1/1) ... [2018-12-09 14:59:44,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:59:44" (1/1) ... [2018-12-09 14:59:44,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:59:44" (1/1) ... [2018-12-09 14:59:44,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:59:44" (1/1) ... [2018-12-09 14:59:44,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 14:59:44,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 14:59:44,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 14:59:44,343 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 14:59:44,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:59:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/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 14:59:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 14:59:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 14:59:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-09 14:59:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-09 14:59:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 14:59:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 14:59:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 14:59:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 14:59:44,944 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 14:59:44,944 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 14:59:44,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:59:44 BoogieIcfgContainer [2018-12-09 14:59:44,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 14:59:44,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 14:59:44,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 14:59:44,946 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 14:59:44,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:59:43" (1/3) ... [2018-12-09 14:59:44,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c0c0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:59:44, skipping insertion in model container [2018-12-09 14:59:44,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:59:44" (2/3) ... [2018-12-09 14:59:44,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c0c0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:59:44, skipping insertion in model container [2018-12-09 14:59:44,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:59:44" (3/3) ... [2018-12-09 14:59:44,948 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label14_true-unreach-call.c [2018-12-09 14:59:44,955 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 14:59:44,960 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 14:59:44,970 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 14:59:44,992 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 14:59:44,992 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 14:59:44,992 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 14:59:44,992 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 14:59:44,992 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 14:59:44,992 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 14:59:44,992 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 14:59:44,992 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 14:59:45,008 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-12-09 14:59:45,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-09 14:59:45,013 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:59:45,013 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] [2018-12-09 14:59:45,015 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 14:59:45,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:59:45,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1721053394, now seen corresponding path program 1 times [2018-12-09 14:59:45,020 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:59:45,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:45,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:59:45,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:45,050 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:59:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:59:45,194 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 14:59:45,196 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 14:59:45,196 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 14:59:45,196 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 14:59:45,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 14:59:45,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 14:59:45,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 14:59:45,215 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2018-12-09 14:59:45,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 14:59:45,721 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2018-12-09 14:59:45,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 14:59:45,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2018-12-09 14:59:45,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 14:59:45,730 INFO L225 Difference]: With dead ends: 571 [2018-12-09 14:59:45,730 INFO L226 Difference]: Without dead ends: 294 [2018-12-09 14:59:45,733 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 14:59:45,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2018-12-09 14:59:45,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2018-12-09 14:59:45,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2018-12-09 14:59:45,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2018-12-09 14:59:45,769 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 37 [2018-12-09 14:59:45,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 14:59:45,770 INFO L480 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2018-12-09 14:59:45,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 14:59:45,770 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2018-12-09 14:59:45,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-12-09 14:59:45,772 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:59:45,773 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:45,773 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 14:59:45,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:59:45,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1761481729, now seen corresponding path program 1 times [2018-12-09 14:59:45,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:59:45,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:45,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:59:45,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:45,774 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:59:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:59:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:59:45,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 14:59:45,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 14:59:45,921 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 14:59:45,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 14:59:45,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 14:59:45,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 14:59:45,922 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 5 states. [2018-12-09 14:59:46,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 14:59:46,414 INFO L93 Difference]: Finished difference Result 735 states and 1122 transitions. [2018-12-09 14:59:46,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 14:59:46,414 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2018-12-09 14:59:46,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 14:59:46,417 INFO L225 Difference]: With dead ends: 735 [2018-12-09 14:59:46,418 INFO L226 Difference]: Without dead ends: 447 [2018-12-09 14:59:46,419 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-09 14:59:46,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2018-12-09 14:59:46,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 443. [2018-12-09 14:59:46,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2018-12-09 14:59:46,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 634 transitions. [2018-12-09 14:59:46,439 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 634 transitions. Word has length 156 [2018-12-09 14:59:46,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 14:59:46,440 INFO L480 AbstractCegarLoop]: Abstraction has 443 states and 634 transitions. [2018-12-09 14:59:46,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 14:59:46,440 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 634 transitions. [2018-12-09 14:59:46,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-12-09 14:59:46,443 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:59:46,443 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:46,443 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 14:59:46,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:59:46,444 INFO L82 PathProgramCache]: Analyzing trace with hash 630639194, now seen corresponding path program 1 times [2018-12-09 14:59:46,444 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:59:46,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:46,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:59:46,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:46,445 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:59:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:59:46,598 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:59:46,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 14:59:46,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 14:59:46,598 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 14:59:46,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 14:59:46,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 14:59:46,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 14:59:46,599 INFO L87 Difference]: Start difference. First operand 443 states and 634 transitions. Second operand 6 states. [2018-12-09 14:59:47,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 14:59:47,043 INFO L93 Difference]: Finished difference Result 1045 states and 1535 transitions. [2018-12-09 14:59:47,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 14:59:47,043 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2018-12-09 14:59:47,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 14:59:47,045 INFO L225 Difference]: With dead ends: 1045 [2018-12-09 14:59:47,046 INFO L226 Difference]: Without dead ends: 608 [2018-12-09 14:59:47,046 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 14:59:47,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2018-12-09 14:59:47,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 592. [2018-12-09 14:59:47,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2018-12-09 14:59:47,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 804 transitions. [2018-12-09 14:59:47,064 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 804 transitions. Word has length 163 [2018-12-09 14:59:47,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 14:59:47,064 INFO L480 AbstractCegarLoop]: Abstraction has 592 states and 804 transitions. [2018-12-09 14:59:47,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 14:59:47,064 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 804 transitions. [2018-12-09 14:59:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-12-09 14:59:47,068 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:59:47,068 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:59:47,068 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 14:59:47,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:59:47,069 INFO L82 PathProgramCache]: Analyzing trace with hash -545211835, now seen corresponding path program 1 times [2018-12-09 14:59:47,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:59:47,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:47,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:59:47,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:47,070 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:59:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:59:47,418 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:59:47,418 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 14:59:47,418 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 14:59:47,419 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 227 with the following transitions: [2018-12-09 14:59:47,420 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [205], [207], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 14:59:47,450 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 14:59:47,451 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 14:59:48,108 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 14:59:48,108 INFO L272 AbstractInterpreter]: Visited 128 different actions 496 times. Merged at 6 different actions 17 times. Never widened. Performed 5322 root evaluator evaluations with a maximum evaluation depth of 15. Performed 5322 inverse root evaluator evaluations with a maximum inverse evaluation depth of 15. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-09 14:59:48,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:59:48,119 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 14:59:48,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 14:59:48,119 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/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 14:59:48,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:59:48,129 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 14:59:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:59:48,176 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 14:59:48,272 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:59:48,272 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 14:59:48,413 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:59:48,429 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 14:59:48,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 17 [2018-12-09 14:59:48,429 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 14:59:48,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-09 14:59:48,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-09 14:59:48,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-12-09 14:59:48,430 INFO L87 Difference]: Start difference. First operand 592 states and 804 transitions. Second operand 16 states. [2018-12-09 14:59:50,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 14:59:50,855 INFO L93 Difference]: Finished difference Result 1717 states and 2642 transitions. [2018-12-09 14:59:50,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-12-09 14:59:50,855 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 226 [2018-12-09 14:59:50,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 14:59:50,860 INFO L225 Difference]: With dead ends: 1717 [2018-12-09 14:59:50,861 INFO L226 Difference]: Without dead ends: 1274 [2018-12-09 14:59:50,862 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 462 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=613, Invalid=2039, Unknown=0, NotChecked=0, Total=2652 [2018-12-09 14:59:50,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2018-12-09 14:59:50,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1047. [2018-12-09 14:59:50,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1047 states. [2018-12-09 14:59:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1330 transitions. [2018-12-09 14:59:50,896 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1330 transitions. Word has length 226 [2018-12-09 14:59:50,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 14:59:50,897 INFO L480 AbstractCegarLoop]: Abstraction has 1047 states and 1330 transitions. [2018-12-09 14:59:50,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-09 14:59:50,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1330 transitions. [2018-12-09 14:59:50,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-12-09 14:59:50,899 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:59:50,899 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:59:50,899 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 14:59:50,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:59:50,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1220888374, now seen corresponding path program 1 times [2018-12-09 14:59:50,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:59:50,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:50,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:59:50,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:50,900 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:59:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:59:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:59:50,991 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 14:59:50,991 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 14:59:50,991 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-12-09 14:59:50,992 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [205], [207], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [718], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 14:59:50,994 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 14:59:50,994 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 14:59:51,144 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 14:59:51,144 INFO L272 AbstractInterpreter]: Visited 134 different actions 265 times. Merged at 6 different actions 8 times. Never widened. Performed 2810 root evaluator evaluations with a maximum evaluation depth of 10. Performed 2810 inverse root evaluator evaluations with a maximum inverse evaluation depth of 10. Found 2 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 14:59:51,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:59:51,154 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 14:59:51,154 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 14:59:51,154 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 14:59:51,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:59:51,163 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 14:59:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:59:51,208 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 14:59:51,258 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:59:51,258 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 14:59:51,326 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:59:51,351 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 14:59:51,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-12-09 14:59:51,351 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 14:59:51,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 14:59:51,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 14:59:51,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-12-09 14:59:51,352 INFO L87 Difference]: Start difference. First operand 1047 states and 1330 transitions. Second operand 9 states. [2018-12-09 14:59:52,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 14:59:52,432 INFO L93 Difference]: Finished difference Result 3217 states and 4619 transitions. [2018-12-09 14:59:52,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 14:59:52,433 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 241 [2018-12-09 14:59:52,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 14:59:52,438 INFO L225 Difference]: With dead ends: 3217 [2018-12-09 14:59:52,438 INFO L226 Difference]: Without dead ends: 1538 [2018-12-09 14:59:52,441 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 485 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2018-12-09 14:59:52,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2018-12-09 14:59:52,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1369. [2018-12-09 14:59:52,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1369 states. [2018-12-09 14:59:52,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1688 transitions. [2018-12-09 14:59:52,470 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1688 transitions. Word has length 241 [2018-12-09 14:59:52,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 14:59:52,470 INFO L480 AbstractCegarLoop]: Abstraction has 1369 states and 1688 transitions. [2018-12-09 14:59:52,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 14:59:52,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1688 transitions. [2018-12-09 14:59:52,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-12-09 14:59:52,473 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:59:52,473 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:59:52,474 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 14:59:52,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:59:52,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1555176578, now seen corresponding path program 1 times [2018-12-09 14:59:52,474 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:59:52,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:52,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:59:52,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:52,475 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:59:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:59:52,583 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 60 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 14:59:52,584 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 14:59:52,584 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 14:59:52,584 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 252 with the following transitions: [2018-12-09 14:59:52,584 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [205], [207], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 14:59:52,587 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 14:59:52,587 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 14:59:52,654 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 14:59:52,654 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Performed 1208 root evaluator evaluations with a maximum evaluation depth of 9. Performed 1208 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Never found a fixpoint. Largest state had 24 variables. [2018-12-09 14:59:52,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:59:52,658 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 14:59:52,871 INFO L227 lantSequenceWeakener]: Weakened 242 states. On average, predicates are now at 73.01% of their original sizes. [2018-12-09 14:59:52,871 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 14:59:52,900 INFO L418 sIntCurrentIteration]: We unified 250 AI predicates to 250 [2018-12-09 14:59:52,900 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 14:59:52,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 14:59:52,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-12-09 14:59:52,900 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 14:59:52,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 14:59:52,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 14:59:52,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 14:59:52,901 INFO L87 Difference]: Start difference. First operand 1369 states and 1688 transitions. Second operand 6 states. [2018-12-09 14:59:55,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 14:59:55,102 INFO L93 Difference]: Finished difference Result 2447 states and 3044 transitions. [2018-12-09 14:59:55,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 14:59:55,102 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 251 [2018-12-09 14:59:55,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 14:59:55,105 INFO L225 Difference]: With dead ends: 2447 [2018-12-09 14:59:55,105 INFO L226 Difference]: Without dead ends: 1370 [2018-12-09 14:59:55,107 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 251 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 14:59:55,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2018-12-09 14:59:55,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1369. [2018-12-09 14:59:55,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1369 states. [2018-12-09 14:59:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1677 transitions. [2018-12-09 14:59:55,129 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1677 transitions. Word has length 251 [2018-12-09 14:59:55,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 14:59:55,129 INFO L480 AbstractCegarLoop]: Abstraction has 1369 states and 1677 transitions. [2018-12-09 14:59:55,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 14:59:55,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1677 transitions. [2018-12-09 14:59:55,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-12-09 14:59:55,132 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:59:55,132 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:59:55,133 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 14:59:55,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:59:55,133 INFO L82 PathProgramCache]: Analyzing trace with hash 949684802, now seen corresponding path program 1 times [2018-12-09 14:59:55,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:59:55,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:55,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:59:55,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:59:55,134 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:59:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:59:55,231 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 61 proven. 46 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-12-09 14:59:55,231 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 14:59:55,231 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 14:59:55,231 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 278 with the following transitions: [2018-12-09 14:59:55,231 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [205], [207], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [718], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 14:59:55,233 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 14:59:55,234 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 14:59:55,324 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 14:59:55,324 INFO L272 AbstractInterpreter]: Visited 133 different actions 260 times. Merged at 4 different actions 4 times. Never widened. Performed 2715 root evaluator evaluations with a maximum evaluation depth of 13. Performed 2715 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-09 14:59:55,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:59:55,326 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 14:59:55,467 INFO L227 lantSequenceWeakener]: Weakened 274 states. On average, predicates are now at 77.93% of their original sizes. [2018-12-09 14:59:55,467 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 14:59:55,516 INFO L418 sIntCurrentIteration]: We unified 276 AI predicates to 276 [2018-12-09 14:59:55,516 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 14:59:55,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 14:59:55,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-09 14:59:55,516 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 14:59:55,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 14:59:55,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 14:59:55,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 14:59:55,517 INFO L87 Difference]: Start difference. First operand 1369 states and 1677 transitions. Second operand 10 states. [2018-12-09 15:00:06,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:00:06,340 INFO L93 Difference]: Finished difference Result 2462 states and 3051 transitions. [2018-12-09 15:00:06,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 15:00:06,341 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 277 [2018-12-09 15:00:06,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:00:06,343 INFO L225 Difference]: With dead ends: 2462 [2018-12-09 15:00:06,343 INFO L226 Difference]: Without dead ends: 1385 [2018-12-09 15:00:06,345 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 287 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-12-09 15:00:06,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2018-12-09 15:00:06,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1341. [2018-12-09 15:00:06,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2018-12-09 15:00:06,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1525 transitions. [2018-12-09 15:00:06,362 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1525 transitions. Word has length 277 [2018-12-09 15:00:06,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:00:06,362 INFO L480 AbstractCegarLoop]: Abstraction has 1341 states and 1525 transitions. [2018-12-09 15:00:06,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 15:00:06,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1525 transitions. [2018-12-09 15:00:06,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2018-12-09 15:00:06,364 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:00:06,364 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:00:06,364 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:00:06,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:00:06,364 INFO L82 PathProgramCache]: Analyzing trace with hash 677384141, now seen corresponding path program 1 times [2018-12-09 15:00:06,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:00:06,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:00:06,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:00:06,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:00:06,365 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:00:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:00:06,743 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 281 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:00:06,743 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:00:06,743 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:00:06,743 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 349 with the following transitions: [2018-12-09 15:00:06,743 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [205], [207], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [679], [683], [687], [691], [694], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 15:00:06,745 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:00:06,745 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:00:06,949 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:00:06,949 INFO L272 AbstractInterpreter]: Visited 129 different actions 386 times. Merged at 7 different actions 21 times. Never widened. Performed 4158 root evaluator evaluations with a maximum evaluation depth of 15. Performed 4158 inverse root evaluator evaluations with a maximum inverse evaluation depth of 15. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 15:00:06,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:00:06,951 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:00:06,951 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:00:06,951 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:00:06,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:00:06,957 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:00:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:00:07,005 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:00:12,565 WARN L180 SmtUtils]: Spent 5.48 s on a formula simplification. DAG size of input: 90 DAG size of output: 47 [2018-12-09 15:00:12,708 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 326 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-12-09 15:00:12,708 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:00:13,011 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,060 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 26 [2018-12-09 15:00:13,173 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,211 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,252 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,295 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,332 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,369 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,406 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,443 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,483 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,520 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,561 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,604 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,646 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,687 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,731 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,782 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,825 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,870 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,915 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:13,959 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,003 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,055 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,098 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,136 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,176 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,218 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,256 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,296 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,333 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,369 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,409 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,447 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,486 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,525 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,565 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,607 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,648 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,687 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,726 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,765 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,807 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,851 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,893 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,936 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:14,980 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,020 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,058 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,101 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,144 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,188 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,231 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,269 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,307 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,346 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,381 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,421 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,463 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,504 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,544 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,581 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,618 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,653 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,697 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,737 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,776 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,815 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,853 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,898 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,942 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:15,986 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,027 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,072 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,113 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,151 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,188 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,224 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,263 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,300 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,342 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,386 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,429 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,473 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,515 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,556 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,604 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,647 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,689 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,727 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,767 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,806 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,847 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,886 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,926 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:16,971 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,010 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,051 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,093 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,145 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,195 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,246 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,298 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,345 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,390 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,434 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,472 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,508 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,541 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,574 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:00:17,942 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 95 proven. 260 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 15:00:17,957 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 15:00:17,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 8] total 28 [2018-12-09 15:00:17,957 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 15:00:17,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-12-09 15:00:17,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-12-09 15:00:17,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=655, Unknown=0, NotChecked=0, Total=756 [2018-12-09 15:00:17,958 INFO L87 Difference]: Start difference. First operand 1341 states and 1525 transitions. Second operand 23 states. [2018-12-09 15:00:19,559 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 31 [2018-12-09 15:00:20,226 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 28 [2018-12-09 15:00:21,390 WARN L180 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2018-12-09 15:00:23,362 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2018-12-09 15:00:24,308 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 28 [2018-12-09 15:00:30,245 WARN L180 SmtUtils]: Spent 5.67 s on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-12-09 15:00:40,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:00:40,691 INFO L93 Difference]: Finished difference Result 5081 states and 6740 transitions. [2018-12-09 15:00:40,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2018-12-09 15:00:40,692 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 348 [2018-12-09 15:00:40,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:00:40,693 INFO L225 Difference]: With dead ends: 5081 [2018-12-09 15:00:40,693 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 15:00:40,704 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 594 SyntacticMatches, 113 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9171 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=2848, Invalid=16612, Unknown=0, NotChecked=0, Total=19460 [2018-12-09 15:00:40,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 15:00:40,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 15:00:40,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 15:00:40,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 15:00:40,704 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 348 [2018-12-09 15:00:40,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:00:40,705 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:00:40,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-12-09 15:00:40,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 15:00:40,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 15:00:40,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 15:00:40,859 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:00:40,915 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 170 [2018-12-09 15:00:40,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:00:41,011 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:00:41,039 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 176 [2018-12-09 15:00:41,429 WARN L180 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 46 [2018-12-09 15:00:41,706 WARN L180 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 44 [2018-12-09 15:00:41,956 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 40 [2018-12-09 15:00:41,958 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 15:00:41,958 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|)) [2018-12-09 15:00:41,958 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 15:00:41,958 INFO L448 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-12-09 15:00:41,958 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,958 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,958 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,958 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,958 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,958 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,958 INFO L448 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-12-09 15:00:41,958 INFO L448 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-12-09 15:00:41,958 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-12-09 15:00:41,959 INFO L448 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,960 INFO L448 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-12-09 15:00:41,961 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-12-09 15:00:41,962 INFO L448 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,963 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse6 (= ~a19~0 |old(~a19~0)|)) (.cse7 (= |old(~a10~0)| ~a10~0)) (.cse5 (= ~a1~0 |old(~a1~0)|))) (let ((.cse3 (< 2 |old(~a10~0)|)) (.cse1 (not (= 14 ~a4~0))) (.cse2 (not (= 0 ~a12~0))) (.cse0 (and .cse6 .cse7 .cse5)) (.cse4 (= 1 |old(~a10~0)|))) (and (or .cse0 (or .cse1 .cse2 .cse3 .cse4)) (or (and .cse5 .cse6 .cse7) .cse1 .cse2 (not (= 9 |old(~a19~0)|)) (= |calculate_output_#in~input| 0)) (or (not (= 8 |old(~a19~0)|)) .cse1 .cse2 .cse0) (or .cse0 .cse1 .cse2 (= 6 |old(~a19~0)|) .cse3) (or (< 8 |old(~a19~0)|) .cse1 .cse2 .cse0 (< 33 |old(~a1~0)|) .cse4)))) [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,964 INFO L448 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,965 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-12-09 15:00:41,966 INFO L448 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-09 15:00:41,967 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-09 15:00:41,968 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-09 15:00:41,968 INFO L448 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-12-09 15:00:41,968 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-12-09 15:00:41,968 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-12-09 15:00:41,968 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 15:00:41,968 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14) (= 9 ~a19~0)) [2018-12-09 15:00:41,968 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 15:00:41,968 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 15:00:41,968 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (and (= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0)) (not (= 14 ~a4~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (= 0 |old(~a10~0)|))) [2018-12-09 15:00:41,968 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-12-09 15:00:41,968 INFO L444 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (not (= ~a10~0 1))) (.cse1 (<= ~a10~0 2))) (or (not (= 23 |old(~a1~0)|)) (= 8 ~a19~0) (not (= 0 ~a12~0)) (not (= 0 |old(~a10~0)|)) (and (<= ~a19~0 8) (<= ~a1~0 33) .cse0) (and .cse1 .cse0) (not (= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (and (not (= ~a19~0 6)) .cse1) (and (not (= main_~input~0 0)) (= 9 ~a19~0)))) [2018-12-09 15:00:41,969 INFO L448 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-12-09 15:00:41,969 INFO L448 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-12-09 15:00:41,969 INFO L444 ceAbstractionStarter]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (not (= ~a10~0 1))) (.cse1 (<= ~a10~0 2))) (or (not (= 23 |old(~a1~0)|)) (= 8 ~a19~0) (not (= 0 ~a12~0)) (not (= 0 |old(~a10~0)|)) (and (<= ~a19~0 8) (<= ~a1~0 33) .cse0) (and .cse1 .cse0) (not (= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (= 9 ~a19~0) (and (not (= ~a19~0 6)) .cse1))) [2018-12-09 15:00:41,969 INFO L448 ceAbstractionStarter]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2018-12-09 15:00:41,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:00:41 BoogieIcfgContainer [2018-12-09 15:00:41,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 15:00:41,977 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:00:41,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:00:41,977 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:00:41,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:59:44" (3/4) ... [2018-12-09 15:00:41,981 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 15:00:41,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 15:00:41,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-09 15:00:41,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 15:00:41,994 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 15:00:41,994 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 15:00:42,019 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(23 == \old(a1)) || 8 == a19) || !(0 == a12)) || !(0 == \old(a10))) || ((a19 <= 8 && a1 <= 33) && !(a10 == 1))) || (a10 <= 2 && !(a10 == 1))) || !(9 == \old(a19))) || !(14 == a4)) || 9 == a19) || (!(a19 == 6) && a10 <= 2) [2018-12-09 15:00:42,079 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_94d9ec32-7f70-4c8a-86e8-301de7f2370b/bin-2019/utaipan/witness.graphml [2018-12-09 15:00:42,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:00:42,080 INFO L168 Benchmark]: Toolchain (without parser) took 58121.93 ms. Allocated memory was 1.0 GB in the beginning and 3.7 GB in the end (delta: 2.7 GB). Free memory was 941.6 MB in the beginning and 3.2 GB in the end (delta: -2.3 GB). Peak memory consumption was 403.6 MB. Max. memory is 11.5 GB. [2018-12-09 15:00:42,080 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:00:42,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2018-12-09 15:00:42,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.26 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 15:00:42,081 INFO L168 Benchmark]: Boogie Preprocessor took 37.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:00:42,081 INFO L168 Benchmark]: RCFGBuilder took 601.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 977.1 MB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 11.5 GB. [2018-12-09 15:00:42,081 INFO L168 Benchmark]: TraceAbstraction took 57031.81 ms. Allocated memory was 1.1 GB in the beginning and 3.7 GB in the end (delta: 2.6 GB). Free memory was 977.1 MB in the beginning and 3.3 GB in the end (delta: -2.3 GB). Peak memory consumption was 2.5 GB. Max. memory is 11.5 GB. [2018-12-09 15:00:42,081 INFO L168 Benchmark]: Witness Printer took 102.39 ms. Allocated memory is still 3.7 GB. Free memory was 3.3 GB in the beginning and 3.2 GB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:00:42,083 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.26 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. * Boogie Preprocessor took 37.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 601.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 977.1 MB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 57031.81 ms. Allocated memory was 1.1 GB in the beginning and 3.7 GB in the end (delta: 2.6 GB). Free memory was 977.1 MB in the beginning and 3.3 GB in the end (delta: -2.3 GB). Peak memory consumption was 2.5 GB. Max. memory is 11.5 GB. * Witness Printer took 102.39 ms. Allocated memory is still 3.7 GB. Free memory was 3.3 GB in the beginning and 3.2 GB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 97]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((((!(23 == \old(a1)) || 8 == a19) || !(0 == a12)) || !(0 == \old(a10))) || ((a19 <= 8 && a1 <= 33) && !(a10 == 1))) || (a10 <= 2 && !(a10 == 1))) || !(9 == \old(a19))) || !(14 == a4)) || 9 == a19) || (!(a19 == 6) && a10 <= 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. SAFE Result, 56.9s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 40.7s AutomataDifference, 0.0s DeadEndRemovalTime, 1.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 361 SDtfs, 15691 SDslu, 964 SDs, 0 SdLazy, 16949 SolverSat, 4765 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2425 GetRequests, 2062 SyntacticMatches, 121 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9943 ImplicationChecksByTransitivity, 22.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1369occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.2s AbstIntTime, 5 AbstIntIterations, 2 AbstIntStrong, 0.9973805295824982 AbsIntWeakeningRatio, 0.09885931558935361 AbsIntAvgWeakeningVarsNumRemoved, 14.49809885931559 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 461 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 131 PreInvPairs, 277 NumberOfFragments, 304 HoareAnnotationTreeSize, 131 FomulaSimplifications, 28396 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 14288 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.2s InterpolantComputationTime, 2514 NumberOfCodeBlocks, 2514 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 3315 ConstructedInterpolants, 124 QuantifiedInterpolants, 7991340 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1374 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 1785/2274 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...