./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label12.c -s /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/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 14ae8eb2d33b1f0bf446cd99369ade126e9422a8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:23:41,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:41,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:41,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:41,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:41,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:41,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:41,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:41,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:41,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:41,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:41,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:41,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:41,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:41,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:41,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:41,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:41,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:41,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:41,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:41,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:41,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:41,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:41,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:41,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:41,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:41,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:41,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:41,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:41,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:41,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:41,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:41,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:41,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:41,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:41,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:41,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:41,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:41,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:41,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:41,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:41,704 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:23:41,723 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:41,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:41,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:41,726 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:41,727 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:41,727 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:41,727 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:23:41,727 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:41,727 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:41,728 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:23:41,728 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:23:41,728 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:41,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:41,729 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:41,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:23:41,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:41,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:41,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:41,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:41,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:41,730 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:41,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:41,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:41,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:41,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:41,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:41,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:41,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:41,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:41,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:41,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:41,732 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:23:41,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:23:41,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:41,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:41,733 INFO L138 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_23a05148-e856-453c-84b4-822a8e770b62/bin/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 -> 14ae8eb2d33b1f0bf446cd99369ade126e9422a8 [2019-10-22 11:23:41,766 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:41,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:41,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:41,785 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:41,785 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:41,786 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label12.c [2019-10-22 11:23:41,842 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/data/39f01187e/6d47bf4200a04baea45276629b9de48a/FLAG87b2a97b6 [2019-10-22 11:23:42,281 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:42,282 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/sv-benchmarks/c/eca-rers2012/Problem01_label12.c [2019-10-22 11:23:42,304 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/data/39f01187e/6d47bf4200a04baea45276629b9de48a/FLAG87b2a97b6 [2019-10-22 11:23:42,806 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/data/39f01187e/6d47bf4200a04baea45276629b9de48a [2019-10-22 11:23:42,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:42,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:42,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:42,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:42,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:42,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:42" (1/1) ... [2019-10-22 11:23:42,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c07e3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:42, skipping insertion in model container [2019-10-22 11:23:42,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:42" (1/1) ... [2019-10-22 11:23:42,822 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:42,863 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:43,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:43,297 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:43,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:43,403 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:43,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:43 WrapperNode [2019-10-22 11:23:43,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:43,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:43,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:43,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:43,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:43" (1/1) ... [2019-10-22 11:23:43,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:43" (1/1) ... [2019-10-22 11:23:43,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:43,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:43,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:43,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:43,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:43" (1/1) ... [2019-10-22 11:23:43,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:43" (1/1) ... [2019-10-22 11:23:43,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:43" (1/1) ... [2019-10-22 11:23:43,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:43" (1/1) ... [2019-10-22 11:23:43,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:43" (1/1) ... [2019-10-22 11:23:43,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:43" (1/1) ... [2019-10-22 11:23:43,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:43" (1/1) ... [2019-10-22 11:23:43,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:43,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:43,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:43,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:43,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/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 [2019-10-22 11:23:43,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:43,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:44,593 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:44,593 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 11:23:44,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:44 BoogieIcfgContainer [2019-10-22 11:23:44,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:44,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:44,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:44,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:44,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:42" (1/3) ... [2019-10-22 11:23:44,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a29f509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:44, skipping insertion in model container [2019-10-22 11:23:44,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:43" (2/3) ... [2019-10-22 11:23:44,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a29f509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:44, skipping insertion in model container [2019-10-22 11:23:44,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:44" (3/3) ... [2019-10-22 11:23:44,602 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label12.c [2019-10-22 11:23:44,612 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:44,620 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:23:44,632 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:23:44,659 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:44,659 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:44,660 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:44,660 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:44,660 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:44,660 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:44,660 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:44,660 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:44,683 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-10-22 11:23:44,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-22 11:23:44,696 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:44,697 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:44,699 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:44,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:44,706 INFO L82 PathProgramCache]: Analyzing trace with hash -56899633, now seen corresponding path program 1 times [2019-10-22 11:23:44,714 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:44,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371255098] [2019-10-22 11:23:44,715 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:44,715 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:44,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:45,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:45,145 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371255098] [2019-10-22 11:23:45,146 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:45,146 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:45,147 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422440212] [2019-10-22 11:23:45,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:23:45,153 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:45,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:23:45,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:45,171 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 4 states. [2019-10-22 11:23:46,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:46,311 INFO L93 Difference]: Finished difference Result 687 states and 1203 transitions. [2019-10-22 11:23:46,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:23:46,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2019-10-22 11:23:46,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:46,330 INFO L225 Difference]: With dead ends: 687 [2019-10-22 11:23:46,331 INFO L226 Difference]: Without dead ends: 397 [2019-10-22 11:23:46,334 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:46,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-10-22 11:23:46,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 266. [2019-10-22 11:23:46,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-10-22 11:23:46,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2019-10-22 11:23:46,401 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 120 [2019-10-22 11:23:46,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:46,401 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2019-10-22 11:23:46,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:23:46,403 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2019-10-22 11:23:46,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-22 11:23:46,406 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:46,406 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:46,406 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:46,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:46,407 INFO L82 PathProgramCache]: Analyzing trace with hash -2046521246, now seen corresponding path program 1 times [2019-10-22 11:23:46,407 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:46,407 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050214950] [2019-10-22 11:23:46,407 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:46,408 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:46,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:46,482 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:46,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050214950] [2019-10-22 11:23:46,482 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:46,483 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:46,483 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404598574] [2019-10-22 11:23:46,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:23:46,485 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:46,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:23:46,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:46,485 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 4 states. [2019-10-22 11:23:47,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:47,191 INFO L93 Difference]: Finished difference Result 1054 states and 1512 transitions. [2019-10-22 11:23:47,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:23:47,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 126 [2019-10-22 11:23:47,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:47,195 INFO L225 Difference]: With dead ends: 1054 [2019-10-22 11:23:47,195 INFO L226 Difference]: Without dead ends: 790 [2019-10-22 11:23:47,197 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:47,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-22 11:23:47,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-10-22 11:23:47,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-10-22 11:23:47,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1068 transitions. [2019-10-22 11:23:47,238 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1068 transitions. Word has length 126 [2019-10-22 11:23:47,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:47,239 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1068 transitions. [2019-10-22 11:23:47,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:23:47,239 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1068 transitions. [2019-10-22 11:23:47,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-22 11:23:47,243 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:47,243 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:47,243 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:47,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:47,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1403860126, now seen corresponding path program 1 times [2019-10-22 11:23:47,244 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:47,244 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664311120] [2019-10-22 11:23:47,244 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:47,244 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:47,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:47,389 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:47,390 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664311120] [2019-10-22 11:23:47,390 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:47,390 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:23:47,390 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818296466] [2019-10-22 11:23:47,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:23:47,391 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:47,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:23:47,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:47,391 INFO L87 Difference]: Start difference. First operand 790 states and 1068 transitions. Second operand 4 states. [2019-10-22 11:23:48,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:48,043 INFO L93 Difference]: Finished difference Result 1578 states and 2134 transitions. [2019-10-22 11:23:48,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:23:48,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2019-10-22 11:23:48,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:48,046 INFO L225 Difference]: With dead ends: 1578 [2019-10-22 11:23:48,047 INFO L226 Difference]: Without dead ends: 790 [2019-10-22 11:23:48,048 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:48,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-22 11:23:48,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-10-22 11:23:48,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-10-22 11:23:48,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 994 transitions. [2019-10-22 11:23:48,070 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 994 transitions. Word has length 127 [2019-10-22 11:23:48,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:48,071 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 994 transitions. [2019-10-22 11:23:48,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:23:48,071 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 994 transitions. [2019-10-22 11:23:48,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-22 11:23:48,075 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:48,075 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:48,076 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:48,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:48,076 INFO L82 PathProgramCache]: Analyzing trace with hash -401386139, now seen corresponding path program 1 times [2019-10-22 11:23:48,076 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:48,076 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192024736] [2019-10-22 11:23:48,076 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:48,077 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:48,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:48,143 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:23:48,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192024736] [2019-10-22 11:23:48,144 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:48,144 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:48,144 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614797056] [2019-10-22 11:23:48,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:48,145 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:48,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:48,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:48,145 INFO L87 Difference]: Start difference. First operand 790 states and 994 transitions. Second operand 3 states. [2019-10-22 11:23:48,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:48,563 INFO L93 Difference]: Finished difference Result 2102 states and 2630 transitions. [2019-10-22 11:23:48,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:48,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-22 11:23:48,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:48,571 INFO L225 Difference]: With dead ends: 2102 [2019-10-22 11:23:48,571 INFO L226 Difference]: Without dead ends: 1314 [2019-10-22 11:23:48,572 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:48,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2019-10-22 11:23:48,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1183. [2019-10-22 11:23:48,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2019-10-22 11:23:48,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1429 transitions. [2019-10-22 11:23:48,595 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1429 transitions. Word has length 138 [2019-10-22 11:23:48,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:48,596 INFO L462 AbstractCegarLoop]: Abstraction has 1183 states and 1429 transitions. [2019-10-22 11:23:48,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:48,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1429 transitions. [2019-10-22 11:23:48,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-22 11:23:48,600 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:48,600 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:48,600 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:48,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:48,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1268632313, now seen corresponding path program 1 times [2019-10-22 11:23:48,601 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:48,601 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86393064] [2019-10-22 11:23:48,601 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:48,601 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:48,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:48,759 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:23:48,760 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86393064] [2019-10-22 11:23:48,760 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:48,760 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:48,760 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826099152] [2019-10-22 11:23:48,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:23:48,761 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:48,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:23:48,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:48,762 INFO L87 Difference]: Start difference. First operand 1183 states and 1429 transitions. Second operand 4 states. [2019-10-22 11:23:49,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:49,248 INFO L93 Difference]: Finished difference Result 2500 states and 3010 transitions. [2019-10-22 11:23:49,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:23:49,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 146 [2019-10-22 11:23:49,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:49,253 INFO L225 Difference]: With dead ends: 2500 [2019-10-22 11:23:49,253 INFO L226 Difference]: Without dead ends: 1319 [2019-10-22 11:23:49,255 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:49,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2019-10-22 11:23:49,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1314. [2019-10-22 11:23:49,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2019-10-22 11:23:49,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1566 transitions. [2019-10-22 11:23:49,280 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1566 transitions. Word has length 146 [2019-10-22 11:23:49,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:49,280 INFO L462 AbstractCegarLoop]: Abstraction has 1314 states and 1566 transitions. [2019-10-22 11:23:49,280 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:23:49,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1566 transitions. [2019-10-22 11:23:49,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-22 11:23:49,285 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:49,285 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:49,285 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:49,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:49,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1203929905, now seen corresponding path program 1 times [2019-10-22 11:23:49,286 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:49,286 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058998948] [2019-10-22 11:23:49,286 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:49,286 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:49,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:49,386 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:23:49,387 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058998948] [2019-10-22 11:23:49,387 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:49,387 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:23:49,387 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088677042] [2019-10-22 11:23:49,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:49,388 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:49,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:49,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:49,388 INFO L87 Difference]: Start difference. First operand 1314 states and 1566 transitions. Second operand 5 states. [2019-10-22 11:23:50,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:50,155 INFO L93 Difference]: Finished difference Result 2757 states and 3328 transitions. [2019-10-22 11:23:50,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:23:50,156 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2019-10-22 11:23:50,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:50,160 INFO L225 Difference]: With dead ends: 2757 [2019-10-22 11:23:50,160 INFO L226 Difference]: Without dead ends: 1576 [2019-10-22 11:23:50,161 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:50,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2019-10-22 11:23:50,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2019-10-22 11:23:50,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2019-10-22 11:23:50,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1859 transitions. [2019-10-22 11:23:50,196 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1859 transitions. Word has length 150 [2019-10-22 11:23:50,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:50,196 INFO L462 AbstractCegarLoop]: Abstraction has 1576 states and 1859 transitions. [2019-10-22 11:23:50,197 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:50,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1859 transitions. [2019-10-22 11:23:50,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-22 11:23:50,206 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:50,207 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:50,207 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:50,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:50,207 INFO L82 PathProgramCache]: Analyzing trace with hash 290696396, now seen corresponding path program 1 times [2019-10-22 11:23:50,207 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:50,208 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900677264] [2019-10-22 11:23:50,208 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:50,208 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:50,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:50,261 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:23:50,262 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900677264] [2019-10-22 11:23:50,262 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:50,262 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:50,262 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951765733] [2019-10-22 11:23:50,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:50,263 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:50,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:50,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:50,264 INFO L87 Difference]: Start difference. First operand 1576 states and 1859 transitions. Second operand 3 states. [2019-10-22 11:23:50,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:50,568 INFO L93 Difference]: Finished difference Result 3150 states and 3716 transitions. [2019-10-22 11:23:50,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:50,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-22 11:23:50,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:50,572 INFO L225 Difference]: With dead ends: 3150 [2019-10-22 11:23:50,572 INFO L226 Difference]: Without dead ends: 1576 [2019-10-22 11:23:50,574 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:50,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2019-10-22 11:23:50,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1314. [2019-10-22 11:23:50,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2019-10-22 11:23:50,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1419 transitions. [2019-10-22 11:23:50,595 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1419 transitions. Word has length 153 [2019-10-22 11:23:50,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:50,596 INFO L462 AbstractCegarLoop]: Abstraction has 1314 states and 1419 transitions. [2019-10-22 11:23:50,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:50,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1419 transitions. [2019-10-22 11:23:50,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-22 11:23:50,599 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:50,599 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:50,599 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:50,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:50,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1555225680, now seen corresponding path program 1 times [2019-10-22 11:23:50,599 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:50,600 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001894617] [2019-10-22 11:23:50,600 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:50,600 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:50,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:50,667 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-22 11:23:50,667 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001894617] [2019-10-22 11:23:50,667 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:50,667 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:50,668 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429664238] [2019-10-22 11:23:50,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:50,668 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:50,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:50,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:50,669 INFO L87 Difference]: Start difference. First operand 1314 states and 1419 transitions. Second operand 3 states. [2019-10-22 11:23:50,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:50,964 INFO L93 Difference]: Finished difference Result 3281 states and 3559 transitions. [2019-10-22 11:23:50,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:50,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-10-22 11:23:50,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:50,969 INFO L225 Difference]: With dead ends: 3281 [2019-10-22 11:23:50,969 INFO L226 Difference]: Without dead ends: 2100 [2019-10-22 11:23:50,971 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:50,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2019-10-22 11:23:51,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2019-10-22 11:23:51,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-10-22 11:23:51,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 1964 transitions. [2019-10-22 11:23:51,008 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 1964 transitions. Word has length 168 [2019-10-22 11:23:51,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:51,008 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 1964 transitions. [2019-10-22 11:23:51,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:51,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 1964 transitions. [2019-10-22 11:23:51,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-22 11:23:51,012 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:51,012 INFO L380 BasicCegarLoop]: trace histogram [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, 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] [2019-10-22 11:23:51,012 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:51,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:51,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1961603004, now seen corresponding path program 1 times [2019-10-22 11:23:51,013 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:51,013 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979537803] [2019-10-22 11:23:51,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:51,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:51,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:51,139 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 97 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:23:51,139 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979537803] [2019-10-22 11:23:51,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026821324] [2019-10-22 11:23:51,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:51,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:23:51,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:51,325 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-22 11:23:51,326 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:51,368 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-22 11:23:51,369 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-22 11:23:51,369 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2019-10-22 11:23:51,369 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571758416] [2019-10-22 11:23:51,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:51,370 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:51,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:51,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:23:51,370 INFO L87 Difference]: Start difference. First operand 1838 states and 1964 transitions. Second operand 3 states. [2019-10-22 11:23:51,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:51,705 INFO L93 Difference]: Finished difference Result 1971 states and 2114 transitions. [2019-10-22 11:23:51,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:51,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-10-22 11:23:51,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:51,711 INFO L225 Difference]: With dead ends: 1971 [2019-10-22 11:23:51,711 INFO L226 Difference]: Without dead ends: 1969 [2019-10-22 11:23:51,712 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 392 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:23:51,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2019-10-22 11:23:51,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2019-10-22 11:23:51,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-10-22 11:23:51,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 1963 transitions. [2019-10-22 11:23:51,746 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 1963 transitions. Word has length 197 [2019-10-22 11:23:51,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:51,746 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 1963 transitions. [2019-10-22 11:23:51,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:51,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 1963 transitions. [2019-10-22 11:23:51,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-22 11:23:51,752 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:51,752 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:51,953 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:51,953 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:51,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:51,953 INFO L82 PathProgramCache]: Analyzing trace with hash 964757150, now seen corresponding path program 1 times [2019-10-22 11:23:51,954 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:51,954 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132399389] [2019-10-22 11:23:51,954 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:51,954 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:51,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:52,090 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 139 proven. 27 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-22 11:23:52,090 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132399389] [2019-10-22 11:23:52,090 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383919216] [2019-10-22 11:23:52,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:52,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:23:52,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:52,237 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2019-10-22 11:23:52,237 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2019-10-22 11:23:52,279 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-22 11:23:52,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2019-10-22 11:23:52,280 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698589835] [2019-10-22 11:23:52,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:52,281 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:52,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:52,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:23:52,281 INFO L87 Difference]: Start difference. First operand 1838 states and 1963 transitions. Second operand 3 states. [2019-10-22 11:23:52,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:52,656 INFO L93 Difference]: Finished difference Result 3936 states and 4208 transitions. [2019-10-22 11:23:52,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:52,657 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2019-10-22 11:23:52,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:52,662 INFO L225 Difference]: With dead ends: 3936 [2019-10-22 11:23:52,662 INFO L226 Difference]: Without dead ends: 1969 [2019-10-22 11:23:52,664 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 424 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:23:52,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2019-10-22 11:23:52,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2019-10-22 11:23:52,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-10-22 11:23:52,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 1943 transitions. [2019-10-22 11:23:52,692 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 1943 transitions. Word has length 213 [2019-10-22 11:23:52,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:52,693 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 1943 transitions. [2019-10-22 11:23:52,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:52,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 1943 transitions. [2019-10-22 11:23:52,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-22 11:23:52,697 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:52,697 INFO L380 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:52,898 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:52,898 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:52,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:52,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1703638970, now seen corresponding path program 1 times [2019-10-22 11:23:52,899 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:52,899 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066558147] [2019-10-22 11:23:52,899 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:52,899 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:52,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:53,232 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 140 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:53,232 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066558147] [2019-10-22 11:23:53,232 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220480103] [2019-10-22 11:23:53,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:53,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:23:53,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2019-10-22 11:23:53,355 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:53,394 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2019-10-22 11:23:53,394 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-22 11:23:53,394 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2019-10-22 11:23:53,394 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205004957] [2019-10-22 11:23:53,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:53,395 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:53,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:53,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:23:53,396 INFO L87 Difference]: Start difference. First operand 1838 states and 1943 transitions. Second operand 3 states. [2019-10-22 11:23:53,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:53,733 INFO L93 Difference]: Finished difference Result 3934 states and 4173 transitions. [2019-10-22 11:23:53,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:53,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2019-10-22 11:23:53,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:53,735 INFO L225 Difference]: With dead ends: 3934 [2019-10-22 11:23:53,735 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:23:53,738 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 429 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:23:53,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:23:53,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:23:53,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:23:53,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:23:53,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 216 [2019-10-22 11:23:53,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:53,739 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:23:53,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:53,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:23:53,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:23:53,940 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:53,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:23:54,239 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-10-22 11:23:54,438 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 37 [2019-10-22 11:23:54,439 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-10-22 11:23:54,439 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-10-22 11:23:54,439 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2019-10-22 11:23:54,440 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-10-22 11:23:54,441 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-10-22 11:23:54,441 INFO L443 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,441 INFO L443 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,441 INFO L443 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,441 INFO L443 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,441 INFO L443 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,441 INFO L443 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,441 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-10-22 11:23:54,441 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-10-22 11:23:54,441 INFO L443 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2019-10-22 11:23:54,441 INFO L443 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2019-10-22 11:23:54,441 INFO L443 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-10-22 11:23:54,441 INFO L443 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-10-22 11:23:54,442 INFO L443 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-10-22 11:23:54,442 INFO L443 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2019-10-22 11:23:54,442 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-10-22 11:23:54,442 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-10-22 11:23:54,442 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-10-22 11:23:54,442 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-10-22 11:23:54,442 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-10-22 11:23:54,442 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-10-22 11:23:54,442 INFO L443 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-10-22 11:23:54,442 INFO L443 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,442 INFO L443 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,443 INFO L443 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,443 INFO L443 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,443 INFO L443 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,443 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-10-22 11:23:54,443 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-10-22 11:23:54,443 INFO L443 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2019-10-22 11:23:54,443 INFO L443 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-10-22 11:23:54,443 INFO L443 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2019-10-22 11:23:54,443 INFO L443 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-10-22 11:23:54,443 INFO L443 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-10-22 11:23:54,443 INFO L443 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2019-10-22 11:23:54,444 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-10-22 11:23:54,444 INFO L439 ceAbstractionStarter]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse2 (= ~a20~0 1)) (.cse5 (not (= ~a16~0 5))) (.cse6 (= 1 ~a7~0)) (.cse0 (<= ~a17~0 0)) (.cse4 (<= ~a20~0 0)) (.cse3 (= ~a17~0 1)) (.cse1 (= ~a21~0 1))) (or (and .cse0 .cse1 .cse2) (and (not (= 1 ULTIMATE.start_calculate_output_~input)) (not (= ~a7~0 1)) .cse3 (= ~a12~0 8) .cse1 .cse2 (= 15 ~a8~0)) (and .cse3 .cse1 .cse4) (and .cse3 .cse1 .cse2 .cse5) (and .cse6 .cse5) (and .cse6 .cse4) (and .cse6 (<= ~a21~0 0) .cse3) (and .cse0 .cse4) (and (= ~a16~0 4) .cse3 .cse1))) [2019-10-22 11:23:54,444 INFO L443 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,444 INFO L443 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,444 INFO L443 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,444 INFO L443 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,444 INFO L443 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,445 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-10-22 11:23:54,445 INFO L443 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-10-22 11:23:54,445 INFO L443 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-10-22 11:23:54,445 INFO L443 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-10-22 11:23:54,445 INFO L443 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-10-22 11:23:54,445 INFO L443 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-10-22 11:23:54,445 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-10-22 11:23:54,445 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-10-22 11:23:54,445 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-10-22 11:23:54,446 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-10-22 11:23:54,446 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-10-22 11:23:54,446 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-10-22 11:23:54,446 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L446 ceAbstractionStarter]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 536) no Hoare annotation was computed. [2019-10-22 11:23:54,447 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-10-22 11:23:54,448 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-10-22 11:23:54,449 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-10-22 11:23:54,449 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-10-22 11:23:54,449 INFO L443 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,449 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse5 (not (= ~a16~0 5))) (.cse6 (= 1 ~a7~0)) (.cse0 (<= ~a17~0 0)) (.cse4 (<= ~a20~0 0)) (.cse3 (= ~a17~0 1)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse4) (and .cse3 .cse1 .cse2 .cse5) (and .cse6 .cse5) (and .cse6 .cse4) (and .cse6 (<= ~a21~0 0) .cse3) (and .cse0 .cse4) (and (= ~a16~0 4) .cse3 .cse1) (and (not (= ~a7~0 1)) (= ~a12~0 8) .cse3 .cse1 .cse2 (= 15 ~a8~0)))) [2019-10-22 11:23:54,449 INFO L443 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,449 INFO L443 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,449 INFO L443 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,450 INFO L443 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,450 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-10-22 11:23:54,450 INFO L443 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-10-22 11:23:54,450 INFO L443 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-10-22 11:23:54,450 INFO L443 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-10-22 11:23:54,451 INFO L443 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-10-22 11:23:54,451 INFO L443 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-10-22 11:23:54,451 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-10-22 11:23:54,451 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-10-22 11:23:54,451 INFO L443 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,451 INFO L443 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,451 INFO L443 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,451 INFO L443 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,451 INFO L443 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,451 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-10-22 11:23:54,451 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:23:54,451 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-10-22 11:23:54,451 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,452 INFO L443 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-10-22 11:23:54,453 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-10-22 11:23:54,454 INFO L443 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,455 INFO L443 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:23:54,456 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-10-22 11:23:54,456 INFO L443 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2019-10-22 11:23:54,456 INFO L443 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2019-10-22 11:23:54,456 INFO L443 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-10-22 11:23:54,456 INFO L443 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-10-22 11:23:54,456 INFO L443 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2019-10-22 11:23:54,456 INFO L443 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2019-10-22 11:23:54,456 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-10-22 11:23:54,456 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-10-22 11:23:54,456 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-10-22 11:23:54,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:23:54 BoogieIcfgContainer [2019-10-22 11:23:54,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:23:54,478 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:23:54,478 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:23:54,478 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:23:54,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:44" (3/4) ... [2019-10-22 11:23:54,482 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:23:54,499 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:23:54,499 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:23:54,635 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_23a05148-e856-453c-84b4-822a8e770b62/bin/utaipan/witness.graphml [2019-10-22 11:23:54,635 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:23:54,636 INFO L168 Benchmark]: Toolchain (without parser) took 11827.01 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 439.9 MB). Free memory was 939.2 MB in the beginning and 832.0 MB in the end (delta: 107.2 MB). Peak memory consumption was 547.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:54,636 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:54,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 593.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:54,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.76 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. [2019-10-22 11:23:54,637 INFO L168 Benchmark]: Boogie Preprocessor took 52.35 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. [2019-10-22 11:23:54,638 INFO L168 Benchmark]: RCFGBuilder took 1059.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 969.9 MB in the end (delta: 114.6 MB). Peak memory consumption was 114.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:54,638 INFO L168 Benchmark]: TraceAbstraction took 9881.75 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 321.4 MB). Free memory was 969.9 MB in the beginning and 859.7 MB in the end (delta: 110.2 MB). Peak memory consumption was 431.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:54,639 INFO L168 Benchmark]: Witness Printer took 157.46 ms. Allocated memory is still 1.5 GB. Free memory was 859.7 MB in the beginning and 832.0 MB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:54,640 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 593.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.76 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 52.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1059.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 969.9 MB in the end (delta: 114.6 MB). Peak memory consumption was 114.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9881.75 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 321.4 MB). Free memory was 969.9 MB in the beginning and 859.7 MB in the end (delta: 110.2 MB). Peak memory consumption was 431.5 MB. Max. memory is 11.5 GB. * Witness Printer took 157.46 ms. Allocated memory is still 1.5 GB. Free memory was 859.7 MB in the beginning and 832.0 MB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 536]: 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: 30]: Loop Invariant Derived loop invariant: (((((((((a17 <= 0 && a21 == 1) && a20 == 1) || ((((((!(1 == input) && !(a7 == 1)) && a17 == 1) && a12 == 8) && a21 == 1) && a20 == 1) && 15 == a8)) || ((a17 == 1 && a21 == 1) && a20 <= 0)) || (((a17 == 1 && a21 == 1) && a20 == 1) && !(a16 == 5))) || (1 == a7 && !(a16 == 5))) || (1 == a7 && a20 <= 0)) || ((1 == a7 && a21 <= 0) && a17 == 1)) || (a17 <= 0 && a20 <= 0)) || ((a16 == 4 && a17 == 1) && a21 == 1) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((a17 <= 0 && a21 == 1) && a20 == 1) || ((a17 == 1 && a21 == 1) && a20 <= 0)) || (((a17 == 1 && a21 == 1) && a20 == 1) && !(a16 == 5))) || (1 == a7 && !(a16 == 5))) || (1 == a7 && a20 <= 0)) || ((1 == a7 && a21 <= 0) && a17 == 1)) || (a17 <= 0 && a20 <= 0)) || ((a16 == 4 && a17 == 1) && a21 == 1)) || (((((!(a7 == 1) && a12 == 8) && a17 == 1) && a21 == 1) && a20 == 1) && 15 == a8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 9.7s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 1145 SDtfs, 1828 SDslu, 105 SDs, 0 SdLazy, 5131 SolverSat, 820 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1294 GetRequests, 1256 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1838occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1053 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 42 NumberOfFragments, 199 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1163 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 870 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2380 NumberOfCodeBlocks, 2380 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2989 ConstructedInterpolants, 0 QuantifiedInterpolants, 1516954 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1092 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 1599/1694 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...