./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label30.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label30.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/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 01a8e9a3332b0304ee54749c06e9a9a428acc8a8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:50:51,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:50:51,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:50:51,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:50:51,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:50:51,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:50:51,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:50:51,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:50:51,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:50:51,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:50:51,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:50:51,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:50:51,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:50:51,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:50:51,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:50:51,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:50:51,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:50:51,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:50:51,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:50:51,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:50:51,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:50:51,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:50:51,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:50:51,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:50:51,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:50:51,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:50:51,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:50:51,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:50:51,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:50:51,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:50:51,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:50:51,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:50:51,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:50:51,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:50:51,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:50:51,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:50:51,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:50:51,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:50:51,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:50:51,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:50:51,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:50:51,848 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:50:51,860 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:50:51,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:50:51,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:50:51,861 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:50:51,861 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:50:51,862 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:50:51,862 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:50:51,862 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:50:51,862 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:50:51,862 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:50:51,862 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:50:51,863 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:50:51,863 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:50:51,863 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:50:51,863 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:50:51,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:50:51,864 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:50:51,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:50:51,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:50:51,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:50:51,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:50:51,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:50:51,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:50:51,865 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:50:51,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:50:51,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:50:51,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:50:51,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:50:51,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:50:51,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:50:51,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:50:51,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:50:51,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:50:51,867 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:50:51,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:50:51,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:50:51,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:50:51,870 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/run_dir_9e306957-9de1-473c-b190-b703c17d4590/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 -> 01a8e9a3332b0304ee54749c06e9a9a428acc8a8 [2019-11-26 02:50:52,012 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:50:52,022 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:50:52,025 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:50:52,026 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:50:52,027 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:50:52,027 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label30.c [2019-11-26 02:50:52,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/bin/utaipan/data/dd8b92668/b1b83f90c3d34958b57d35942d57a90e/FLAG026bf2724 [2019-11-26 02:50:52,574 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:50:52,575 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/sv-benchmarks/c/eca-rers2012/Problem02_label30.c [2019-11-26 02:50:52,603 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/bin/utaipan/data/dd8b92668/b1b83f90c3d34958b57d35942d57a90e/FLAG026bf2724 [2019-11-26 02:50:53,095 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/bin/utaipan/data/dd8b92668/b1b83f90c3d34958b57d35942d57a90e [2019-11-26 02:50:53,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:50:53,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:50:53,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:50:53,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:50:53,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:50:53,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26b4ff5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53, skipping insertion in model container [2019-11-26 02:50:53,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:50:53,164 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:50:53,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:50:53,538 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:50:53,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:50:53,647 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:50:53,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53 WrapperNode [2019-11-26 02:50:53,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:50:53,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:50:53,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:50:53,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:50:53,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:50:53,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:50:53,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:50:53,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:50:53,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:50:53,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:50:53,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:50:53,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:50:53,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/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 [2019-11-26 02:50:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:50:53,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:50:55,853 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:50:55,853 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-26 02:50:55,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:55 BoogieIcfgContainer [2019-11-26 02:50:55,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:50:55,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:50:55,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:50:55,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:50:55,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:50:53" (1/3) ... [2019-11-26 02:50:55,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35428dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:50:55, skipping insertion in model container [2019-11-26 02:50:55,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (2/3) ... [2019-11-26 02:50:55,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35428dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:50:55, skipping insertion in model container [2019-11-26 02:50:55,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:55" (3/3) ... [2019-11-26 02:50:55,861 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label30.c [2019-11-26 02:50:55,869 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:50:55,876 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:50:55,886 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:50:55,913 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:50:55,913 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:50:55,913 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:50:55,914 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:50:55,914 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:50:55,914 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:50:55,914 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:50:55,914 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:50:55,933 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-11-26 02:50:55,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-11-26 02:50:55,945 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:50:55,946 INFO L410 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] [2019-11-26 02:50:55,946 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:50:55,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:55,952 INFO L82 PathProgramCache]: Analyzing trace with hash 925960463, now seen corresponding path program 1 times [2019-11-26 02:50:55,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:50:55,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845276279] [2019-11-26 02:50:55,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:50:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:56,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:50:56,248 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845276279] [2019-11-26 02:50:56,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:50:56,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:50:56,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154523275] [2019-11-26 02:50:56,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:50:56,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:50:56,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:50:56,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:50:56,272 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2019-11-26 02:50:56,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:50:56,906 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2019-11-26 02:50:56,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:50:56,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-11-26 02:50:56,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:50:56,918 INFO L225 Difference]: With dead ends: 251 [2019-11-26 02:50:56,918 INFO L226 Difference]: Without dead ends: 163 [2019-11-26 02:50:56,921 INFO L630 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 [2019-11-26 02:50:56,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-11-26 02:50:56,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2019-11-26 02:50:56,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-11-26 02:50:56,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 288 transitions. [2019-11-26 02:50:56,976 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 288 transitions. Word has length 80 [2019-11-26 02:50:56,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:50:56,977 INFO L462 AbstractCegarLoop]: Abstraction has 163 states and 288 transitions. [2019-11-26 02:50:56,978 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:50:56,978 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 288 transitions. [2019-11-26 02:50:56,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-11-26 02:50:56,984 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:50:56,985 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-26 02:50:56,985 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:50:56,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:56,986 INFO L82 PathProgramCache]: Analyzing trace with hash 221760942, now seen corresponding path program 1 times [2019-11-26 02:50:56,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:50:56,986 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8260549] [2019-11-26 02:50:56,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:50:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:50:57,101 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8260549] [2019-11-26 02:50:57,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:50:57,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:50:57,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097756672] [2019-11-26 02:50:57,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:50:57,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:50:57,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:50:57,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:50:57,106 INFO L87 Difference]: Start difference. First operand 163 states and 288 transitions. Second operand 4 states. [2019-11-26 02:50:57,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:50:57,732 INFO L93 Difference]: Finished difference Result 647 states and 1148 transitions. [2019-11-26 02:50:57,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:50:57,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2019-11-26 02:50:57,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:50:57,737 INFO L225 Difference]: With dead ends: 647 [2019-11-26 02:50:57,737 INFO L226 Difference]: Without dead ends: 485 [2019-11-26 02:50:57,739 INFO L630 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 [2019-11-26 02:50:57,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-11-26 02:50:57,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 323. [2019-11-26 02:50:57,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2019-11-26 02:50:57,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 549 transitions. [2019-11-26 02:50:57,787 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 549 transitions. Word has length 98 [2019-11-26 02:50:57,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:50:57,789 INFO L462 AbstractCegarLoop]: Abstraction has 323 states and 549 transitions. [2019-11-26 02:50:57,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:50:57,789 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 549 transitions. [2019-11-26 02:50:57,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-11-26 02:50:57,796 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:50:57,796 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-26 02:50:57,796 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:50:57,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:57,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1583662382, now seen corresponding path program 1 times [2019-11-26 02:50:57,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:50:57,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110798138] [2019-11-26 02:50:57,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:50:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:57,907 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:50:57,907 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110798138] [2019-11-26 02:50:57,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:50:57,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:50:57,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120203553] [2019-11-26 02:50:57,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:50:57,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:50:57,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:50:57,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:50:57,915 INFO L87 Difference]: Start difference. First operand 323 states and 549 transitions. Second operand 4 states. [2019-11-26 02:50:58,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:50:58,584 INFO L93 Difference]: Finished difference Result 1287 states and 2192 transitions. [2019-11-26 02:50:58,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:50:58,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2019-11-26 02:50:58,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:50:58,592 INFO L225 Difference]: With dead ends: 1287 [2019-11-26 02:50:58,592 INFO L226 Difference]: Without dead ends: 965 [2019-11-26 02:50:58,594 INFO L630 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 [2019-11-26 02:50:58,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2019-11-26 02:50:58,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 643. [2019-11-26 02:50:58,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-11-26 02:50:58,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1036 transitions. [2019-11-26 02:50:58,631 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1036 transitions. Word has length 99 [2019-11-26 02:50:58,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:50:58,631 INFO L462 AbstractCegarLoop]: Abstraction has 643 states and 1036 transitions. [2019-11-26 02:50:58,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:50:58,632 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1036 transitions. [2019-11-26 02:50:58,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-11-26 02:50:58,634 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:50:58,634 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:50:58,634 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:50:58,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:58,635 INFO L82 PathProgramCache]: Analyzing trace with hash -875184285, now seen corresponding path program 1 times [2019-11-26 02:50:58,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:50:58,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575885120] [2019-11-26 02:50:58,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:50:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:58,698 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:50:58,701 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575885120] [2019-11-26 02:50:58,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:50:58,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:50:58,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213951237] [2019-11-26 02:50:58,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:50:58,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:50:58,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:50:58,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:50:58,703 INFO L87 Difference]: Start difference. First operand 643 states and 1036 transitions. Second operand 4 states. [2019-11-26 02:50:59,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:50:59,396 INFO L93 Difference]: Finished difference Result 2085 states and 3289 transitions. [2019-11-26 02:50:59,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:50:59,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2019-11-26 02:50:59,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:50:59,404 INFO L225 Difference]: With dead ends: 2085 [2019-11-26 02:50:59,404 INFO L226 Difference]: Without dead ends: 1443 [2019-11-26 02:50:59,406 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:50:59,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2019-11-26 02:50:59,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1283. [2019-11-26 02:50:59,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2019-11-26 02:50:59,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1832 transitions. [2019-11-26 02:50:59,453 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1832 transitions. Word has length 102 [2019-11-26 02:50:59,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:50:59,454 INFO L462 AbstractCegarLoop]: Abstraction has 1283 states and 1832 transitions. [2019-11-26 02:50:59,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:50:59,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1832 transitions. [2019-11-26 02:50:59,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-11-26 02:50:59,459 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:50:59,459 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:50:59,459 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:50:59,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:59,460 INFO L82 PathProgramCache]: Analyzing trace with hash -2118164719, now seen corresponding path program 1 times [2019-11-26 02:50:59,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:50:59,460 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325704619] [2019-11-26 02:50:59,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:50:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:59,632 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-26 02:50:59,632 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325704619] [2019-11-26 02:50:59,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:50:59,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:50:59,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92777588] [2019-11-26 02:50:59,633 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:50:59,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:50:59,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:50:59,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:50:59,633 INFO L87 Difference]: Start difference. First operand 1283 states and 1832 transitions. Second operand 3 states. [2019-11-26 02:51:00,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:00,011 INFO L93 Difference]: Finished difference Result 2565 states and 3663 transitions. [2019-11-26 02:51:00,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:51:00,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2019-11-26 02:51:00,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:00,019 INFO L225 Difference]: With dead ends: 2565 [2019-11-26 02:51:00,019 INFO L226 Difference]: Without dead ends: 1283 [2019-11-26 02:51:00,021 INFO L630 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 [2019-11-26 02:51:00,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2019-11-26 02:51:00,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 963. [2019-11-26 02:51:00,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2019-11-26 02:51:00,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1321 transitions. [2019-11-26 02:51:00,053 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1321 transitions. Word has length 107 [2019-11-26 02:51:00,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:00,053 INFO L462 AbstractCegarLoop]: Abstraction has 963 states and 1321 transitions. [2019-11-26 02:51:00,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:51:00,054 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1321 transitions. [2019-11-26 02:51:00,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-11-26 02:51:00,056 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:00,057 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2019-11-26 02:51:00,057 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:00,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:00,057 INFO L82 PathProgramCache]: Analyzing trace with hash -306790973, now seen corresponding path program 1 times [2019-11-26 02:51:00,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:51:00,058 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55149898] [2019-11-26 02:51:00,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:51:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:00,112 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-26 02:51:00,114 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55149898] [2019-11-26 02:51:00,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:00,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:51:00,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734267079] [2019-11-26 02:51:00,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:51:00,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:51:00,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:51:00,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:00,117 INFO L87 Difference]: Start difference. First operand 963 states and 1321 transitions. Second operand 3 states. [2019-11-26 02:51:00,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:00,490 INFO L93 Difference]: Finished difference Result 2323 states and 3135 transitions. [2019-11-26 02:51:00,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:51:00,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2019-11-26 02:51:00,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:00,492 INFO L225 Difference]: With dead ends: 2323 [2019-11-26 02:51:00,492 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:51:00,494 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:00,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:51:00,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:51:00,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:51:00,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:51:00,495 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2019-11-26 02:51:00,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:00,495 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:51:00,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:51:00,496 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:51:00,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:51:00,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:51:00,706 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 28 [2019-11-26 02:51:00,823 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 28 [2019-11-26 02:51:00,825 INFO L444 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-11-26 02:51:00,826 INFO L444 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-11-26 02:51:00,826 INFO L444 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-11-26 02:51:00,826 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-11-26 02:51:00,826 INFO L444 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-11-26 02:51:00,826 INFO L444 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-11-26 02:51:00,826 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-11-26 02:51:00,826 INFO L444 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-11-26 02:51:00,826 INFO L444 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-11-26 02:51:00,827 INFO L444 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-11-26 02:51:00,827 INFO L444 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-11-26 02:51:00,827 INFO L444 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-11-26 02:51:00,827 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-11-26 02:51:00,827 INFO L444 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-11-26 02:51:00,827 INFO L444 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-11-26 02:51:00,827 INFO L444 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-11-26 02:51:00,827 INFO L444 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-11-26 02:51:00,827 INFO L444 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-11-26 02:51:00,828 INFO L444 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-11-26 02:51:00,828 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-11-26 02:51:00,828 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-11-26 02:51:00,828 INFO L444 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-11-26 02:51:00,828 INFO L444 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-11-26 02:51:00,828 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-11-26 02:51:00,828 INFO L444 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-11-26 02:51:00,828 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:51:00,828 INFO L444 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-11-26 02:51:00,828 INFO L444 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-11-26 02:51:00,829 INFO L444 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-11-26 02:51:00,829 INFO L444 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-11-26 02:51:00,829 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-11-26 02:51:00,829 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-11-26 02:51:00,829 INFO L444 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-11-26 02:51:00,829 INFO L444 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-11-26 02:51:00,829 INFO L444 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-11-26 02:51:00,829 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-11-26 02:51:00,829 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 556) no Hoare annotation was computed. [2019-11-26 02:51:00,830 INFO L444 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-11-26 02:51:00,830 INFO L444 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-11-26 02:51:00,830 INFO L444 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-11-26 02:51:00,830 INFO L444 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-11-26 02:51:00,830 INFO L440 ceAbstractionStarter]: At program point L597(lines 29 598) the Hoare annotation is: (let ((.cse3 (= ~a11~0 1))) (let ((.cse0 (= ~a19~0 1)) (.cse2 (= ~a28~0 9)) (.cse4 (not (= ~a25~0 1))) (.cse6 (not .cse3)) (.cse5 (= ~a17~0 8)) (.cse1 (not (= ~a28~0 11)))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse4 .cse0) (and .cse4 .cse3 .cse1) (and .cse4 .cse5 .cse6) (and .cse0 .cse6) (and .cse2 .cse4 .cse6) (and .cse5 .cse1)))) [2019-11-26 02:51:00,830 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-11-26 02:51:00,830 INFO L444 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-11-26 02:51:00,831 INFO L447 ceAbstractionStarter]: At program point L600(lines 600 617) the Hoare annotation is: true [2019-11-26 02:51:00,831 INFO L444 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-11-26 02:51:00,831 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-11-26 02:51:00,831 INFO L444 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-11-26 02:51:00,831 INFO L444 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-11-26 02:51:00,831 INFO L444 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-11-26 02:51:00,832 INFO L444 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-11-26 02:51:00,832 INFO L444 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-11-26 02:51:00,832 INFO L440 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (= ~a11~0 1))) (let ((.cse0 (= ~a19~0 1)) (.cse2 (= ~a28~0 9)) (.cse4 (not (= ~a25~0 1))) (.cse6 (not .cse3)) (.cse5 (= ~a17~0 8)) (.cse1 (not (= ~a28~0 11)))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse4 .cse0) (and .cse4 .cse3 .cse1) (and .cse4 .cse5 .cse6) (and .cse0 .cse6) (and .cse2 .cse4 .cse6) (and .cse5 .cse1)))) [2019-11-26 02:51:00,833 INFO L444 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-11-26 02:51:00,833 INFO L444 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-11-26 02:51:00,833 INFO L444 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-11-26 02:51:00,833 INFO L444 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-11-26 02:51:00,833 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-11-26 02:51:00,833 INFO L444 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-11-26 02:51:00,834 INFO L444 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-11-26 02:51:00,834 INFO L444 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-11-26 02:51:00,834 INFO L444 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-11-26 02:51:00,834 INFO L444 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-11-26 02:51:00,834 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:51:00,834 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-11-26 02:51:00,834 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-11-26 02:51:00,835 INFO L444 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-11-26 02:51:00,835 INFO L444 ceAbstractionStarter]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2019-11-26 02:51:00,835 INFO L444 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-11-26 02:51:00,835 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-11-26 02:51:00,835 INFO L444 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-11-26 02:51:00,835 INFO L444 ceAbstractionStarter]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2019-11-26 02:51:00,836 INFO L444 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-11-26 02:51:00,836 INFO L444 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-11-26 02:51:00,836 INFO L444 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-11-26 02:51:00,836 INFO L444 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2019-11-26 02:51:00,836 INFO L444 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-11-26 02:51:00,836 INFO L444 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-11-26 02:51:00,836 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-11-26 02:51:00,837 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-11-26 02:51:00,837 INFO L444 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-11-26 02:51:00,837 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-11-26 02:51:00,837 INFO L444 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-11-26 02:51:00,837 INFO L444 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-11-26 02:51:00,837 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-11-26 02:51:00,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:51:00 BoogieIcfgContainer [2019-11-26 02:51:00,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:51:00,854 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:51:00,854 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:51:00,854 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:51:00,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:55" (3/4) ... [2019-11-26 02:51:00,858 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:51:00,884 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2019-11-26 02:51:00,886 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2019-11-26 02:51:00,888 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-26 02:51:00,889 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:51:01,067 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9e306957-9de1-473c-b190-b703c17d4590/bin/utaipan/witness.graphml [2019-11-26 02:51:01,067 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:51:01,069 INFO L168 Benchmark]: Toolchain (without parser) took 7970.03 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 287.3 MB). Free memory was 938.0 MB in the beginning and 1.0 GB in the end (delta: -83.7 MB). Peak memory consumption was 203.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:01,069 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:51:01,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -140.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:01,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.62 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:01,070 INFO L168 Benchmark]: Boogie Preprocessor took 61.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:01,070 INFO L168 Benchmark]: RCFGBuilder took 2069.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 846.0 MB in the end (delta: 218.5 MB). Peak memory consumption was 218.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:01,071 INFO L168 Benchmark]: TraceAbstraction took 4998.85 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 176.7 MB). Free memory was 846.0 MB in the beginning and 1.0 GB in the end (delta: -198.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:51:01,071 INFO L168 Benchmark]: Witness Printer took 213.39 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:01,073 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 546.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -140.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.62 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2069.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 846.0 MB in the end (delta: 218.5 MB). Peak memory consumption was 218.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4998.85 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 176.7 MB). Free memory was 846.0 MB in the beginning and 1.0 GB in the end (delta: -198.1 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 213.39 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 556]: 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: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((a19 == 1 && !(a28 == 11)) || (a28 == 9 && a11 == 1)) || (!(a25 == 1) && a19 == 1)) || ((!(a25 == 1) && a11 == 1) && !(a28 == 11))) || ((!(a25 == 1) && a17 == 8) && !(a11 == 1))) || (a19 == 1 && !(a11 == 1))) || ((a28 == 9 && !(a25 == 1)) && !(a11 == 1))) || (a17 == 8 && !(a28 == 11)) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((a19 == 1 && !(a28 == 11)) || (a28 == 9 && a11 == 1)) || (!(a25 == 1) && a19 == 1)) || ((!(a25 == 1) && a11 == 1) && !(a28 == 11))) || ((!(a25 == 1) && a17 == 8) && !(a11 == 1))) || (a19 == 1 && !(a11 == 1))) || ((a28 == 9 && !(a25 == 1)) && !(a11 == 1))) || (a17 == 8 && !(a28 == 11)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Result: SAFE, OverallTime: 4.9s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 318 SDtfs, 693 SDslu, 70 SDs, 0 SdLazy, 2115 SolverSat, 556 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1283occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 964 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 39 NumberOfFragments, 153 HoareAnnotationTreeSize, 3 FomulaSimplifications, 802 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 356 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 595 NumberOfCodeBlocks, 595 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 589 ConstructedInterpolants, 0 QuantifiedInterpolants, 102863 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 133/133 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...