./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.v+nlh-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edfcf451b435e6b30ae37c75ee1e2f5c8348550f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 19:07:09,889 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 19:07:09,890 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 19:07:09,898 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 19:07:09,898 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 19:07:09,899 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 19:07:09,899 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 19:07:09,901 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 19:07:09,902 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 19:07:09,902 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 19:07:09,903 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 19:07:09,903 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 19:07:09,904 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 19:07:09,904 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 19:07:09,905 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 19:07:09,905 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 19:07:09,905 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 19:07:09,906 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 19:07:09,907 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 19:07:09,908 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 19:07:09,908 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 19:07:09,909 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 19:07:09,911 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 19:07:09,911 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 19:07:09,911 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 19:07:09,911 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 19:07:09,912 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 19:07:09,912 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 19:07:09,913 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 19:07:09,913 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 19:07:09,913 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 19:07:09,913 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 19:07:09,914 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 19:07:09,914 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 19:07:09,914 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 19:07:09,914 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 19:07:09,915 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 19:07:09,924 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 19:07:09,925 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 19:07:09,925 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 19:07:09,925 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 19:07:09,926 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 19:07:09,926 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 19:07:09,926 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 19:07:09,926 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 19:07:09,926 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 19:07:09,926 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 19:07:09,927 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 19:07:09,927 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 19:07:09,927 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 19:07:09,927 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 19:07:09,928 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 19:07:09,928 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 19:07:09,928 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 19:07:09,928 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 19:07:09,928 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 19:07:09,928 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 19:07:09,928 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 19:07:09,929 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 19:07:09,929 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 19:07:09,929 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 19:07:09,929 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 19:07:09,929 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 19:07:09,929 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 19:07:09,930 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 19:07:09,930 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 19:07:09,930 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 19:07:09,930 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 19:07:09,930 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 19:07:09,930 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 19:07:09,930 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 19:07:09,931 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 19:07:09,931 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 19:07:09,931 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edfcf451b435e6b30ae37c75ee1e2f5c8348550f [2018-12-02 19:07:09,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 19:07:09,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 19:07:09,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 19:07:09,967 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 19:07:09,968 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 19:07:09,968 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan/../../sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.v+nlh-reducer.c [2018-12-02 19:07:10,010 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan/data/9cf0e2c1e/c93ce2e7c649408ea15d18ba89c77e4b/FLAGe2e156c55 [2018-12-02 19:07:10,351 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 19:07:10,351 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.v+nlh-reducer.c [2018-12-02 19:07:10,355 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan/data/9cf0e2c1e/c93ce2e7c649408ea15d18ba89c77e4b/FLAGe2e156c55 [2018-12-02 19:07:10,744 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan/data/9cf0e2c1e/c93ce2e7c649408ea15d18ba89c77e4b [2018-12-02 19:07:10,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 19:07:10,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 19:07:10,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 19:07:10,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 19:07:10,752 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 19:07:10,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:07:10" (1/1) ... [2018-12-02 19:07:10,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be0f211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:10, skipping insertion in model container [2018-12-02 19:07:10,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:07:10" (1/1) ... [2018-12-02 19:07:10,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 19:07:10,789 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 19:07:10,887 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 19:07:10,890 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 19:07:10,908 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 19:07:10,916 INFO L195 MainTranslator]: Completed translation [2018-12-02 19:07:10,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:10 WrapperNode [2018-12-02 19:07:10,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 19:07:10,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 19:07:10,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 19:07:10,917 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 19:07:10,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:10" (1/1) ... [2018-12-02 19:07:10,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:10" (1/1) ... [2018-12-02 19:07:10,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 19:07:10,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 19:07:10,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 19:07:10,930 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 19:07:10,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:10" (1/1) ... [2018-12-02 19:07:10,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:10" (1/1) ... [2018-12-02 19:07:10,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:10" (1/1) ... [2018-12-02 19:07:10,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:10" (1/1) ... [2018-12-02 19:07:10,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:10" (1/1) ... [2018-12-02 19:07:10,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:10" (1/1) ... [2018-12-02 19:07:10,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:10" (1/1) ... [2018-12-02 19:07:10,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 19:07:10,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 19:07:10,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 19:07:10,976 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 19:07:10,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 19:07:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 19:07:11,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 19:07:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 19:07:11,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 19:07:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 19:07:11,009 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 19:07:11,172 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 19:07:11,172 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 19:07:11,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:07:11 BoogieIcfgContainer [2018-12-02 19:07:11,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 19:07:11,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 19:07:11,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 19:07:11,175 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 19:07:11,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:07:10" (1/3) ... [2018-12-02 19:07:11,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34205bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:07:11, skipping insertion in model container [2018-12-02 19:07:11,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:10" (2/3) ... [2018-12-02 19:07:11,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34205bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:07:11, skipping insertion in model container [2018-12-02 19:07:11,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:07:11" (3/3) ... [2018-12-02 19:07:11,176 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag_true-unreach-call.i.v+nlh-reducer.c [2018-12-02 19:07:11,182 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 19:07:11,186 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-12-02 19:07:11,196 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-12-02 19:07:11,214 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 19:07:11,214 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 19:07:11,214 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 19:07:11,214 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 19:07:11,214 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 19:07:11,214 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 19:07:11,215 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 19:07:11,215 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 19:07:11,225 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-12-02 19:07:11,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-02 19:07:11,229 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:11,229 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:11,231 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:11,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:11,234 INFO L82 PathProgramCache]: Analyzing trace with hash -355727005, now seen corresponding path program 1 times [2018-12-02 19:07:11,235 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:11,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:11,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:11,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:11,263 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:11,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:11,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:11,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 19:07:11,344 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:11,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 19:07:11,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 19:07:11,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 19:07:11,356 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 5 states. [2018-12-02 19:07:11,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:11,464 INFO L93 Difference]: Finished difference Result 129 states and 172 transitions. [2018-12-02 19:07:11,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 19:07:11,465 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-12-02 19:07:11,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:11,471 INFO L225 Difference]: With dead ends: 129 [2018-12-02 19:07:11,471 INFO L226 Difference]: Without dead ends: 113 [2018-12-02 19:07:11,473 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-02 19:07:11,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-12-02 19:07:11,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 69. [2018-12-02 19:07:11,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-12-02 19:07:11,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2018-12-02 19:07:11,498 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 12 [2018-12-02 19:07:11,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:11,498 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2018-12-02 19:07:11,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 19:07:11,498 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2018-12-02 19:07:11,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-02 19:07:11,498 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:11,499 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:11,499 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:11,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:11,499 INFO L82 PathProgramCache]: Analyzing trace with hash -358961311, now seen corresponding path program 1 times [2018-12-02 19:07:11,499 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:11,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:11,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:11,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:11,500 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:11,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:11,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:11,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 19:07:11,524 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:11,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 19:07:11,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 19:07:11,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 19:07:11,525 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 4 states. [2018-12-02 19:07:11,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:11,557 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2018-12-02 19:07:11,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 19:07:11,557 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-12-02 19:07:11,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:11,558 INFO L225 Difference]: With dead ends: 69 [2018-12-02 19:07:11,558 INFO L226 Difference]: Without dead ends: 67 [2018-12-02 19:07:11,558 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 19:07:11,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-12-02 19:07:11,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-12-02 19:07:11,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-12-02 19:07:11,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2018-12-02 19:07:11,562 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 12 [2018-12-02 19:07:11,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:11,563 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2018-12-02 19:07:11,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 19:07:11,563 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2018-12-02 19:07:11,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 19:07:11,563 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:11,563 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:11,563 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:11,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:11,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1757104312, now seen corresponding path program 1 times [2018-12-02 19:07:11,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:11,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:11,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:11,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:11,564 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:11,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:11,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:11,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 19:07:11,595 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:11,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 19:07:11,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 19:07:11,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 19:07:11,596 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 5 states. [2018-12-02 19:07:11,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:11,648 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2018-12-02 19:07:11,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 19:07:11,648 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-12-02 19:07:11,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:11,649 INFO L225 Difference]: With dead ends: 73 [2018-12-02 19:07:11,649 INFO L226 Difference]: Without dead ends: 71 [2018-12-02 19:07:11,649 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-02 19:07:11,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-12-02 19:07:11,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2018-12-02 19:07:11,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-12-02 19:07:11,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2018-12-02 19:07:11,654 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 13 [2018-12-02 19:07:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:11,655 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2018-12-02 19:07:11,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 19:07:11,655 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2018-12-02 19:07:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 19:07:11,656 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:11,656 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:11,656 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:11,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:11,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1775862844, now seen corresponding path program 1 times [2018-12-02 19:07:11,657 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:11,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:11,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:11,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:11,658 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:11,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:11,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:11,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 19:07:11,692 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:11,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 19:07:11,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 19:07:11,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 19:07:11,693 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand 6 states. [2018-12-02 19:07:11,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:11,771 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2018-12-02 19:07:11,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:11,772 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-12-02 19:07:11,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:11,772 INFO L225 Difference]: With dead ends: 107 [2018-12-02 19:07:11,772 INFO L226 Difference]: Without dead ends: 105 [2018-12-02 19:07:11,772 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-12-02 19:07:11,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-12-02 19:07:11,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 68. [2018-12-02 19:07:11,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-12-02 19:07:11,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2018-12-02 19:07:11,777 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 15 [2018-12-02 19:07:11,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:11,777 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2018-12-02 19:07:11,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 19:07:11,777 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2018-12-02 19:07:11,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 19:07:11,777 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:11,777 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:11,778 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:11,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:11,778 INFO L82 PathProgramCache]: Analyzing trace with hash 655192796, now seen corresponding path program 1 times [2018-12-02 19:07:11,778 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:11,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:11,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:11,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:11,779 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:11,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:11,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:11,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 19:07:11,805 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:11,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 19:07:11,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 19:07:11,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 19:07:11,806 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 6 states. [2018-12-02 19:07:11,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:11,864 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2018-12-02 19:07:11,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:11,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-12-02 19:07:11,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:11,865 INFO L225 Difference]: With dead ends: 69 [2018-12-02 19:07:11,865 INFO L226 Difference]: Without dead ends: 67 [2018-12-02 19:07:11,865 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-12-02 19:07:11,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-12-02 19:07:11,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2018-12-02 19:07:11,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-02 19:07:11,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2018-12-02 19:07:11,869 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 15 [2018-12-02 19:07:11,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:11,869 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2018-12-02 19:07:11,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 19:07:11,869 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2018-12-02 19:07:11,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 19:07:11,869 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:11,869 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:11,870 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:11,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:11,870 INFO L82 PathProgramCache]: Analyzing trace with hash 783259850, now seen corresponding path program 1 times [2018-12-02 19:07:11,870 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:11,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:11,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:11,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:11,871 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:11,896 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:11,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 19:07:11,897 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:11,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 19:07:11,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 19:07:11,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 19:07:11,897 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand 6 states. [2018-12-02 19:07:11,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:11,995 INFO L93 Difference]: Finished difference Result 146 states and 155 transitions. [2018-12-02 19:07:11,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:11,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-12-02 19:07:11,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:11,996 INFO L225 Difference]: With dead ends: 146 [2018-12-02 19:07:11,996 INFO L226 Difference]: Without dead ends: 144 [2018-12-02 19:07:11,996 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-12-02 19:07:11,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-12-02 19:07:12,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 64. [2018-12-02 19:07:12,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-12-02 19:07:12,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-12-02 19:07:12,003 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 16 [2018-12-02 19:07:12,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:12,003 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-12-02 19:07:12,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 19:07:12,003 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-12-02 19:07:12,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 19:07:12,004 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:12,004 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:12,004 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:12,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:12,005 INFO L82 PathProgramCache]: Analyzing trace with hash 782829867, now seen corresponding path program 1 times [2018-12-02 19:07:12,005 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:12,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:12,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,006 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:12,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:12,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:12,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 19:07:12,037 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:12,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 19:07:12,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 19:07:12,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 19:07:12,038 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 6 states. [2018-12-02 19:07:12,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:12,122 INFO L93 Difference]: Finished difference Result 99 states and 105 transitions. [2018-12-02 19:07:12,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:12,122 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-12-02 19:07:12,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:12,123 INFO L225 Difference]: With dead ends: 99 [2018-12-02 19:07:12,123 INFO L226 Difference]: Without dead ends: 95 [2018-12-02 19:07:12,124 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-12-02 19:07:12,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-12-02 19:07:12,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 60. [2018-12-02 19:07:12,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-12-02 19:07:12,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2018-12-02 19:07:12,127 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 16 [2018-12-02 19:07:12,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:12,127 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2018-12-02 19:07:12,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 19:07:12,128 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2018-12-02 19:07:12,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 19:07:12,128 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:12,128 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:12,129 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:12,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:12,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1163856723, now seen corresponding path program 1 times [2018-12-02 19:07:12,129 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:12,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:12,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,130 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:12,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:12,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 19:07:12,153 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:12,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 19:07:12,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 19:07:12,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 19:07:12,153 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 6 states. [2018-12-02 19:07:12,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:12,216 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2018-12-02 19:07:12,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:12,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-12-02 19:07:12,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:12,216 INFO L225 Difference]: With dead ends: 61 [2018-12-02 19:07:12,216 INFO L226 Difference]: Without dead ends: 57 [2018-12-02 19:07:12,217 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-12-02 19:07:12,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-12-02 19:07:12,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2018-12-02 19:07:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-12-02 19:07:12,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-12-02 19:07:12,220 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 16 [2018-12-02 19:07:12,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:12,220 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-12-02 19:07:12,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 19:07:12,220 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-12-02 19:07:12,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 19:07:12,221 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:12,221 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:12,221 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:12,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:12,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1488745224, now seen corresponding path program 1 times [2018-12-02 19:07:12,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:12,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:12,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,222 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:12,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:12,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:12,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 19:07:12,291 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:12,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 19:07:12,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 19:07:12,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-02 19:07:12,291 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 9 states. [2018-12-02 19:07:12,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:12,388 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2018-12-02 19:07:12,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:12,388 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2018-12-02 19:07:12,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:12,388 INFO L225 Difference]: With dead ends: 95 [2018-12-02 19:07:12,389 INFO L226 Difference]: Without dead ends: 93 [2018-12-02 19:07:12,389 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-12-02 19:07:12,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-12-02 19:07:12,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 54. [2018-12-02 19:07:12,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-02 19:07:12,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2018-12-02 19:07:12,391 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 17 [2018-12-02 19:07:12,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:12,392 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2018-12-02 19:07:12,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 19:07:12,392 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2018-12-02 19:07:12,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 19:07:12,392 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:12,392 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:12,392 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:12,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:12,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1705597714, now seen corresponding path program 1 times [2018-12-02 19:07:12,393 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:12,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:12,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,393 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:12,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:12,416 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:12,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 19:07:12,416 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:12,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 19:07:12,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 19:07:12,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 19:07:12,416 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 6 states. [2018-12-02 19:07:12,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:12,467 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2018-12-02 19:07:12,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:12,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-12-02 19:07:12,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:12,467 INFO L225 Difference]: With dead ends: 72 [2018-12-02 19:07:12,468 INFO L226 Difference]: Without dead ends: 70 [2018-12-02 19:07:12,468 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-12-02 19:07:12,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-12-02 19:07:12,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 52. [2018-12-02 19:07:12,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-02 19:07:12,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2018-12-02 19:07:12,470 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 17 [2018-12-02 19:07:12,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:12,471 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2018-12-02 19:07:12,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 19:07:12,471 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2018-12-02 19:07:12,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 19:07:12,471 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:12,471 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:12,471 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:12,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:12,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1704058514, now seen corresponding path program 1 times [2018-12-02 19:07:12,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:12,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:12,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,472 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:12,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:12,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:12,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 19:07:12,502 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:12,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 19:07:12,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 19:07:12,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 19:07:12,502 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 6 states. [2018-12-02 19:07:12,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:12,549 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2018-12-02 19:07:12,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:12,549 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-12-02 19:07:12,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:12,550 INFO L225 Difference]: With dead ends: 53 [2018-12-02 19:07:12,550 INFO L226 Difference]: Without dead ends: 51 [2018-12-02 19:07:12,550 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-12-02 19:07:12,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-02 19:07:12,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2018-12-02 19:07:12,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-02 19:07:12,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2018-12-02 19:07:12,552 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 17 [2018-12-02 19:07:12,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:12,552 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2018-12-02 19:07:12,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 19:07:12,553 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2018-12-02 19:07:12,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 19:07:12,553 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:12,553 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:12,553 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:12,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:12,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1087292366, now seen corresponding path program 1 times [2018-12-02 19:07:12,553 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:12,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:12,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,554 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:12,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:12,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:12,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 19:07:12,603 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:12,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 19:07:12,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 19:07:12,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-02 19:07:12,604 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 9 states. [2018-12-02 19:07:12,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:12,697 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2018-12-02 19:07:12,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:12,698 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-12-02 19:07:12,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:12,698 INFO L225 Difference]: With dead ends: 51 [2018-12-02 19:07:12,698 INFO L226 Difference]: Without dead ends: 49 [2018-12-02 19:07:12,698 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-12-02 19:07:12,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-12-02 19:07:12,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2018-12-02 19:07:12,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-02 19:07:12,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2018-12-02 19:07:12,701 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 18 [2018-12-02 19:07:12,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:12,702 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2018-12-02 19:07:12,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 19:07:12,702 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2018-12-02 19:07:12,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 19:07:12,702 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:12,702 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:12,703 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:12,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:12,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1332553060, now seen corresponding path program 1 times [2018-12-02 19:07:12,703 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:12,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:12,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,704 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:12,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:12,728 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:12,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 19:07:12,728 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:12,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 19:07:12,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 19:07:12,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 19:07:12,729 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 6 states. [2018-12-02 19:07:12,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:12,775 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2018-12-02 19:07:12,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:12,776 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-12-02 19:07:12,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:12,776 INFO L225 Difference]: With dead ends: 69 [2018-12-02 19:07:12,776 INFO L226 Difference]: Without dead ends: 67 [2018-12-02 19:07:12,777 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-12-02 19:07:12,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-12-02 19:07:12,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 43. [2018-12-02 19:07:12,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-02 19:07:12,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2018-12-02 19:07:12,781 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 18 [2018-12-02 19:07:12,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:12,781 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2018-12-02 19:07:12,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 19:07:12,781 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2018-12-02 19:07:12,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 19:07:12,781 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:12,782 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:12,782 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:12,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:12,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1333918480, now seen corresponding path program 1 times [2018-12-02 19:07:12,782 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:12,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:12,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,783 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:12,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:12,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:12,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 19:07:12,834 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:12,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 19:07:12,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 19:07:12,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-02 19:07:12,834 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 8 states. [2018-12-02 19:07:12,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:12,926 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2018-12-02 19:07:12,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:12,926 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-12-02 19:07:12,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:12,927 INFO L225 Difference]: With dead ends: 57 [2018-12-02 19:07:12,927 INFO L226 Difference]: Without dead ends: 55 [2018-12-02 19:07:12,927 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-12-02 19:07:12,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-12-02 19:07:12,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 41. [2018-12-02 19:07:12,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-02 19:07:12,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-12-02 19:07:12,929 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 18 [2018-12-02 19:07:12,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:12,930 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-12-02 19:07:12,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 19:07:12,930 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-12-02 19:07:12,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 19:07:12,930 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:12,930 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:12,930 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:12,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:12,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1286203230, now seen corresponding path program 1 times [2018-12-02 19:07:12,931 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:12,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:12,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:12,931 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:12,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:12,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:12,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 19:07:12,970 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:12,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 19:07:12,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 19:07:12,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-02 19:07:12,970 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 8 states. [2018-12-02 19:07:13,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:13,043 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-12-02 19:07:13,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 19:07:13,043 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-12-02 19:07:13,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:13,044 INFO L225 Difference]: With dead ends: 41 [2018-12-02 19:07:13,044 INFO L226 Difference]: Without dead ends: 37 [2018-12-02 19:07:13,044 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-12-02 19:07:13,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-02 19:07:13,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-02 19:07:13,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-02 19:07:13,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-12-02 19:07:13,046 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 18 [2018-12-02 19:07:13,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:13,046 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-12-02 19:07:13,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 19:07:13,047 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-12-02 19:07:13,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 19:07:13,047 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:13,047 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:13,047 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:13,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:13,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1640531233, now seen corresponding path program 1 times [2018-12-02 19:07:13,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:13,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:13,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:13,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:13,048 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:13,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:13,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:13,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 19:07:13,084 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:13,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 19:07:13,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 19:07:13,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-02 19:07:13,085 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 8 states. [2018-12-02 19:07:13,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:13,170 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2018-12-02 19:07:13,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:13,170 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-12-02 19:07:13,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:13,170 INFO L225 Difference]: With dead ends: 52 [2018-12-02 19:07:13,170 INFO L226 Difference]: Without dead ends: 50 [2018-12-02 19:07:13,171 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-12-02 19:07:13,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-02 19:07:13,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2018-12-02 19:07:13,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-02 19:07:13,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2018-12-02 19:07:13,174 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 19 [2018-12-02 19:07:13,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:13,174 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2018-12-02 19:07:13,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 19:07:13,174 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2018-12-02 19:07:13,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 19:07:13,175 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:13,175 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:13,175 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:13,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:13,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1995308589, now seen corresponding path program 1 times [2018-12-02 19:07:13,175 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:13,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:13,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:13,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:13,176 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:13,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:13,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:13,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 19:07:13,198 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:13,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 19:07:13,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 19:07:13,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-02 19:07:13,198 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 7 states. [2018-12-02 19:07:13,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:13,243 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2018-12-02 19:07:13,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:13,243 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-02 19:07:13,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:13,244 INFO L225 Difference]: With dead ends: 39 [2018-12-02 19:07:13,244 INFO L226 Difference]: Without dead ends: 37 [2018-12-02 19:07:13,244 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-12-02 19:07:13,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-02 19:07:13,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2018-12-02 19:07:13,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-02 19:07:13,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-12-02 19:07:13,247 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 20 [2018-12-02 19:07:13,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:13,247 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-12-02 19:07:13,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 19:07:13,248 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-12-02 19:07:13,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 19:07:13,248 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:07:13,248 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:07:13,248 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:07:13,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:07:13,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1725020998, now seen corresponding path program 1 times [2018-12-02 19:07:13,249 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:07:13,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:13,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:07:13,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:07:13,249 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:07:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:07:13,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:07:13,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:07:13,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 19:07:13,266 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:07:13,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 19:07:13,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 19:07:13,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 19:07:13,267 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 6 states. [2018-12-02 19:07:13,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:07:13,331 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2018-12-02 19:07:13,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:07:13,331 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-12-02 19:07:13,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:07:13,332 INFO L225 Difference]: With dead ends: 37 [2018-12-02 19:07:13,332 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 19:07:13,332 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-12-02 19:07:13,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 19:07:13,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 19:07:13,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 19:07:13,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 19:07:13,333 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-12-02 19:07:13,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:07:13,333 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 19:07:13,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 19:07:13,333 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 19:07:13,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 19:07:13,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 19:07:13,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:07:13,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:07:13,388 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:07:13,396 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:07:13,466 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 19:07:13,466 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 19:07:13,466 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 19:07:13,466 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 19:07:13,466 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 19:07:13,466 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 19:07:13,466 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 19:07:13,466 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 363) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 370) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 364) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point L110(line 110) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point L284(lines 284 358) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 68) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 240) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 150) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point L78(lines 78 88) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point L334(line 334) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 158) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 251) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point L293(line 293) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 184) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point L120(lines 120 197) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L451 ceAbstractionStarter]: At program point L310(lines 27 363) the Hoare annotation is: true [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 246) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 370) no Hoare annotation was computed. [2018-12-02 19:07:13,467 INFO L448 ceAbstractionStarter]: For program point L170(lines 170 194) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 361) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 196) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L444 ceAbstractionStarter]: At program point L352(lines 278 359) the Hoare annotation is: (and (not (= 0 main_~__VERIFIER_assert__cond~13)) (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (= main_~__VERIFIER_assert__cond~12 1) (<= 0 main_~main__t~0)) [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 39) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 370) the Hoare annotation is: true [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point L220(line 220) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point L344(lines 344 353) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L444 ceAbstractionStarter]: At program point L245(lines 97 247) the Hoare annotation is: (and (= main_~__VERIFIER_assert__cond~0 1) (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (not (= 0 main_~__VERIFIER_assert__cond~1)) (<= 1 main_~main__t~0)) [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point L303(lines 303 311) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 172) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point L138(line 138) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point L39(line 39) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 220) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 293) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 247) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point L320(lines 320 357) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 346) no Hoare annotation was computed. [2018-12-02 19:07:13,468 INFO L448 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 369) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 334) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point L230(lines 230 238) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point L346(line 346) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 51) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 156) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 138) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 249) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point L305(line 305) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point L272(lines 272 359) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 90) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 232) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point L182(lines 182 192) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 199) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 305) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point L232(line 232) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-12-02 19:07:13,469 INFO L444 ceAbstractionStarter]: At program point L323(lines 27 363) the Hoare annotation is: (and (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (<= 0 main_~main__t~0)) [2018-12-02 19:07:13,470 INFO L444 ceAbstractionStarter]: At program point L191(lines 55 249) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (= main_~__VERIFIER_assert__cond~0 1) (not (= 0 main_~__VERIFIER_assert__cond~1)) (<= 1 main_~main__t~0)) [2018-12-02 19:07:13,470 INFO L448 ceAbstractionStarter]: For program point L150(line 150) no Hoare annotation was computed. [2018-12-02 19:07:13,470 INFO L448 ceAbstractionStarter]: For program point L51(line 51) no Hoare annotation was computed. [2018-12-02 19:07:13,470 INFO L448 ceAbstractionStarter]: For program point L274(line 274) no Hoare annotation was computed. [2018-12-02 19:07:13,470 INFO L448 ceAbstractionStarter]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 274) no Hoare annotation was computed. [2018-12-02 19:07:13,470 INFO L448 ceAbstractionStarter]: For program point L332(lines 332 355) no Hoare annotation was computed. [2018-12-02 19:07:13,470 INFO L448 ceAbstractionStarter]: For program point L101(lines 101 205) no Hoare annotation was computed. [2018-12-02 19:07:13,470 INFO L448 ceAbstractionStarter]: For program point L68(line 68) no Hoare annotation was computed. [2018-12-02 19:07:13,470 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 313) no Hoare annotation was computed. [2018-12-02 19:07:13,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:07:13 BoogieIcfgContainer [2018-12-02 19:07:13,479 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 19:07:13,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 19:07:13,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 19:07:13,480 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 19:07:13,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:07:11" (3/4) ... [2018-12-02 19:07:13,482 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 19:07:13,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 19:07:13,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 19:07:13,490 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-02 19:07:13,491 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 19:07:13,531 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_68c1e4b6-e90a-4b15-837e-94e064e0791b/bin-2019/utaipan/witness.graphml [2018-12-02 19:07:13,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 19:07:13,532 INFO L168 Benchmark]: Toolchain (without parser) took 2785.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -132.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-02 19:07:13,533 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 19:07:13,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.07 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 936.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-02 19:07:13,533 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.83 ms. Allocated memory is still 1.0 GB. Free memory is still 936.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 19:07:13,533 INFO L168 Benchmark]: Boogie Preprocessor took 45.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -161.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-02 19:07:13,534 INFO L168 Benchmark]: RCFGBuilder took 196.92 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: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2018-12-02 19:07:13,534 INFO L168 Benchmark]: TraceAbstraction took 2306.36 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 46.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -19.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-12-02 19:07:13,534 INFO L168 Benchmark]: Witness Printer took 52.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. [2018-12-02 19:07:13,535 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 168.07 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 936.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.83 ms. Allocated memory is still 1.0 GB. Free memory is still 936.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -161.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 196.92 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: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2306.36 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 46.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -19.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Witness Printer took 52.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 305]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 51]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 150]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 184]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 39]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 68]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 172]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 274]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 334]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 293]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 220]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 138]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 346]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 80]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 122]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 110]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 232]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: main__t + 1 <= main__tagbuf_len && 0 <= main__t - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((main__t <= main__tagbuf_len && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__t - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: ((__VERIFIER_assert__cond == 1 && main__t + 1 <= main__tagbuf_len) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__t - InvariantResult [Line: 278]: Loop Invariant Derived loop invariant: ((!(0 == __VERIFIER_assert__cond) && main__t + 1 <= main__tagbuf_len) && __VERIFIER_assert__cond == 1) && 0 <= main__t - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 76 locations, 17 error locations. SAFE Result, 2.2s OverallTime, 18 OverallIterations, 1 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 827 SDtfs, 1999 SDslu, 1410 SDs, 0 SdLazy, 1547 SolverSat, 217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 18 MinimizatonAttempts, 318 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 12 NumberOfFragments, 63 HoareAnnotationTreeSize, 9 FomulaSimplifications, 282753 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 149 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 298 NumberOfCodeBlocks, 298 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 11607 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...