./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.v+lhb-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_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/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 75f71671f83387eb35a445031d63abe79f5c0c7c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:53:03,755 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 14:53:03,756 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 14:53:03,762 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 14:53:03,762 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 14:53:03,763 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 14:53:03,764 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 14:53:03,765 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 14:53:03,765 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 14:53:03,766 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 14:53:03,766 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 14:53:03,767 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 14:53:03,767 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 14:53:03,768 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 14:53:03,768 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 14:53:03,769 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 14:53:03,769 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 14:53:03,770 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 14:53:03,771 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 14:53:03,772 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 14:53:03,773 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 14:53:03,773 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 14:53:03,775 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 14:53:03,775 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 14:53:03,775 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 14:53:03,776 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 14:53:03,776 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 14:53:03,777 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 14:53:03,777 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 14:53:03,778 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 14:53:03,778 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 14:53:03,778 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 14:53:03,778 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 14:53:03,779 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 14:53:03,779 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 14:53:03,779 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 14:53:03,780 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 14:53:03,787 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 14:53:03,787 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 14:53:03,787 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 14:53:03,788 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 14:53:03,788 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 14:53:03,788 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 14:53:03,788 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 14:53:03,788 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 14:53:03,788 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 14:53:03,788 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 14:53:03,788 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 14:53:03,789 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 14:53:03,789 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 14:53:03,789 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 14:53:03,789 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 14:53:03,789 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 14:53:03,790 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 14:53:03,790 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 14:53:03,790 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 14:53:03,790 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 14:53:03,790 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 14:53:03,790 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 14:53:03,790 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 14:53:03,790 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 14:53:03,791 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 14:53:03,791 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 14:53:03,791 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 14:53:03,791 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 14:53:03,791 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 14:53:03,791 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 14:53:03,791 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 14:53:03,791 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 14:53:03,791 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 14:53:03,792 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 14:53:03,792 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 14:53:03,792 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 14:53:03,792 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_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/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 -> 75f71671f83387eb35a445031d63abe79f5c0c7c [2018-12-02 14:53:03,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 14:53:03,816 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 14:53:03,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 14:53:03,818 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 14:53:03,819 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 14:53:03,819 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/bin-2019/utaipan/../../sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.v+lhb-reducer.c [2018-12-02 14:53:03,856 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/bin-2019/utaipan/data/4b8a84f7a/caf6a78c400a4846b88b6e2dbb443b49/FLAG62fc52219 [2018-12-02 14:53:04,155 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 14:53:04,156 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.v+lhb-reducer.c [2018-12-02 14:53:04,160 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/bin-2019/utaipan/data/4b8a84f7a/caf6a78c400a4846b88b6e2dbb443b49/FLAG62fc52219 [2018-12-02 14:53:04,168 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/bin-2019/utaipan/data/4b8a84f7a/caf6a78c400a4846b88b6e2dbb443b49 [2018-12-02 14:53:04,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 14:53:04,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 14:53:04,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 14:53:04,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 14:53:04,174 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 14:53:04,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:53:04" (1/1) ... [2018-12-02 14:53:04,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672351b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:04, skipping insertion in model container [2018-12-02 14:53:04,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:53:04" (1/1) ... [2018-12-02 14:53:04,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 14:53:04,196 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 14:53:04,297 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:53:04,300 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 14:53:04,319 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:53:04,327 INFO L195 MainTranslator]: Completed translation [2018-12-02 14:53:04,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:04 WrapperNode [2018-12-02 14:53:04,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 14:53:04,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 14:53:04,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 14:53:04,328 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 14:53:04,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:04" (1/1) ... [2018-12-02 14:53:04,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:04" (1/1) ... [2018-12-02 14:53:04,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 14:53:04,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 14:53:04,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 14:53:04,374 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 14:53:04,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:04" (1/1) ... [2018-12-02 14:53:04,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:04" (1/1) ... [2018-12-02 14:53:04,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:04" (1/1) ... [2018-12-02 14:53:04,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:04" (1/1) ... [2018-12-02 14:53:04,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:04" (1/1) ... [2018-12-02 14:53:04,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:04" (1/1) ... [2018-12-02 14:53:04,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:04" (1/1) ... [2018-12-02 14:53:04,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 14:53:04,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 14:53:04,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 14:53:04,394 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 14:53:04,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/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 14:53:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 14:53:04,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 14:53:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 14:53:04,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 14:53:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 14:53:04,427 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 14:53:04,621 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 14:53:04,621 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 14:53:04,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:53:04 BoogieIcfgContainer [2018-12-02 14:53:04,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 14:53:04,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 14:53:04,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 14:53:04,624 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 14:53:04,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:53:04" (1/3) ... [2018-12-02 14:53:04,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ce4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:53:04, skipping insertion in model container [2018-12-02 14:53:04,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:04" (2/3) ... [2018-12-02 14:53:04,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ce4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:53:04, skipping insertion in model container [2018-12-02 14:53:04,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:53:04" (3/3) ... [2018-12-02 14:53:04,626 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag_true-unreach-call.i.v+lhb-reducer.c [2018-12-02 14:53:04,632 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 14:53:04,637 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2018-12-02 14:53:04,647 INFO L257 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2018-12-02 14:53:04,665 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 14:53:04,666 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 14:53:04,666 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 14:53:04,666 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 14:53:04,666 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 14:53:04,666 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 14:53:04,666 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 14:53:04,666 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 14:53:04,678 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2018-12-02 14:53:04,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-02 14:53:04,681 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:04,682 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:53:04,683 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:04,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:04,687 INFO L82 PathProgramCache]: Analyzing trace with hash 288597337, now seen corresponding path program 1 times [2018-12-02 14:53:04,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:04,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:04,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:04,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:04,717 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:04,800 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 14:53:04,801 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:04,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 14:53:04,802 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:04,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 14:53:04,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 14:53:04,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 14:53:04,814 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 5 states. [2018-12-02 14:53:04,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:04,935 INFO L93 Difference]: Finished difference Result 127 states and 170 transitions. [2018-12-02 14:53:04,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 14:53:04,936 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-12-02 14:53:04,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:04,942 INFO L225 Difference]: With dead ends: 127 [2018-12-02 14:53:04,942 INFO L226 Difference]: Without dead ends: 111 [2018-12-02 14:53:04,944 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 14:53:04,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-12-02 14:53:04,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 73. [2018-12-02 14:53:04,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-12-02 14:53:04,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2018-12-02 14:53:04,968 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 12 [2018-12-02 14:53:04,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:04,968 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2018-12-02 14:53:04,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 14:53:04,968 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2018-12-02 14:53:04,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-02 14:53:04,969 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:04,969 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:53:04,969 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:04,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:04,969 INFO L82 PathProgramCache]: Analyzing trace with hash 285426585, now seen corresponding path program 1 times [2018-12-02 14:53:04,969 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:04,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:04,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:04,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:04,970 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:05,006 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 14:53:05,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:05,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 14:53:05,007 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:05,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 14:53:05,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 14:53:05,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 14:53:05,008 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand 5 states. [2018-12-02 14:53:05,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:05,070 INFO L93 Difference]: Finished difference Result 111 states and 117 transitions. [2018-12-02 14:53:05,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 14:53:05,071 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-12-02 14:53:05,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:05,071 INFO L225 Difference]: With dead ends: 111 [2018-12-02 14:53:05,071 INFO L226 Difference]: Without dead ends: 109 [2018-12-02 14:53:05,072 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 14:53:05,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-12-02 14:53:05,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 71. [2018-12-02 14:53:05,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-02 14:53:05,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2018-12-02 14:53:05,077 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 12 [2018-12-02 14:53:05,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:05,077 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2018-12-02 14:53:05,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 14:53:05,077 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2018-12-02 14:53:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 14:53:05,077 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:05,077 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:53:05,078 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:05,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:05,078 INFO L82 PathProgramCache]: Analyzing trace with hash -918238132, now seen corresponding path program 1 times [2018-12-02 14:53:05,078 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:05,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:05,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,079 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:05,112 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 14:53:05,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:05,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:53:05,112 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:05,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:53:05,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:53:05,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:53:05,113 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 6 states. [2018-12-02 14:53:05,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:05,190 INFO L93 Difference]: Finished difference Result 109 states and 115 transitions. [2018-12-02 14:53:05,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 14:53:05,190 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-12-02 14:53:05,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:05,190 INFO L225 Difference]: With dead ends: 109 [2018-12-02 14:53:05,191 INFO L226 Difference]: Without dead ends: 107 [2018-12-02 14:53:05,191 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 14:53:05,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-12-02 14:53:05,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 69. [2018-12-02 14:53:05,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-12-02 14:53:05,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2018-12-02 14:53:05,195 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 15 [2018-12-02 14:53:05,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:05,195 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2018-12-02 14:53:05,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:53:05,195 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2018-12-02 14:53:05,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 14:53:05,196 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:05,196 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:53:05,196 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:05,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:05,196 INFO L82 PathProgramCache]: Analyzing trace with hash -888931738, now seen corresponding path program 1 times [2018-12-02 14:53:05,196 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:05,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:05,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,197 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:05,222 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 14:53:05,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:05,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:53:05,222 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:05,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:53:05,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:53:05,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:53:05,223 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 6 states. [2018-12-02 14:53:05,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:05,306 INFO L93 Difference]: Finished difference Result 105 states and 112 transitions. [2018-12-02 14:53:05,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 14:53:05,306 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-12-02 14:53:05,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:05,307 INFO L225 Difference]: With dead ends: 105 [2018-12-02 14:53:05,307 INFO L226 Difference]: Without dead ends: 103 [2018-12-02 14:53:05,307 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-12-02 14:53:05,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-12-02 14:53:05,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 67. [2018-12-02 14:53:05,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-12-02 14:53:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2018-12-02 14:53:05,311 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 15 [2018-12-02 14:53:05,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:05,312 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2018-12-02 14:53:05,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:53:05,312 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2018-12-02 14:53:05,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 14:53:05,312 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:05,312 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:53:05,313 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:05,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:05,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1599834060, now seen corresponding path program 1 times [2018-12-02 14:53:05,313 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:05,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:05,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,314 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:05,340 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 14:53:05,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:05,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:53:05,341 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:05,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:53:05,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:53:05,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:53:05,342 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 6 states. [2018-12-02 14:53:05,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:05,448 INFO L93 Difference]: Finished difference Result 150 states and 159 transitions. [2018-12-02 14:53:05,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 14:53:05,448 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-12-02 14:53:05,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:05,449 INFO L225 Difference]: With dead ends: 150 [2018-12-02 14:53:05,449 INFO L226 Difference]: Without dead ends: 148 [2018-12-02 14:53:05,449 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 14:53:05,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-12-02 14:53:05,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 65. [2018-12-02 14:53:05,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-02 14:53:05,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2018-12-02 14:53:05,455 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 16 [2018-12-02 14:53:05,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:05,456 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2018-12-02 14:53:05,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:53:05,456 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2018-12-02 14:53:05,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 14:53:05,456 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:05,456 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:53:05,457 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:05,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:05,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1599820158, now seen corresponding path program 1 times [2018-12-02 14:53:05,457 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:05,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:05,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,458 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:05,494 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 14:53:05,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:05,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:53:05,494 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:05,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:53:05,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:53:05,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:53:05,495 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 6 states. [2018-12-02 14:53:05,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:05,570 INFO L93 Difference]: Finished difference Result 101 states and 107 transitions. [2018-12-02 14:53:05,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 14:53:05,570 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-12-02 14:53:05,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:05,571 INFO L225 Difference]: With dead ends: 101 [2018-12-02 14:53:05,571 INFO L226 Difference]: Without dead ends: 99 [2018-12-02 14:53:05,571 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 14:53:05,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-12-02 14:53:05,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 63. [2018-12-02 14:53:05,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-12-02 14:53:05,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2018-12-02 14:53:05,575 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 16 [2018-12-02 14:53:05,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:05,575 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2018-12-02 14:53:05,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:53:05,575 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2018-12-02 14:53:05,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 14:53:05,576 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:05,576 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:53:05,576 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:05,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:05,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1599392161, now seen corresponding path program 1 times [2018-12-02 14:53:05,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:05,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:05,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,577 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:05,601 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 14:53:05,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:05,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:53:05,602 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:05,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:53:05,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:53:05,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:53:05,602 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 6 states. [2018-12-02 14:53:05,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:05,709 INFO L93 Difference]: Finished difference Result 99 states and 105 transitions. [2018-12-02 14:53:05,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 14:53:05,709 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-12-02 14:53:05,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:05,710 INFO L225 Difference]: With dead ends: 99 [2018-12-02 14:53:05,710 INFO L226 Difference]: Without dead ends: 95 [2018-12-02 14:53:05,710 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 14:53:05,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-12-02 14:53:05,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 59. [2018-12-02 14:53:05,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-12-02 14:53:05,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2018-12-02 14:53:05,713 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 16 [2018-12-02 14:53:05,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:05,714 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2018-12-02 14:53:05,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:53:05,714 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2018-12-02 14:53:05,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 14:53:05,714 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:05,714 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:53:05,715 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:05,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:05,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1787077023, now seen corresponding path program 1 times [2018-12-02 14:53:05,715 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:05,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:05,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,716 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:05,736 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 14:53:05,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:05,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:53:05,736 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:05,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:53:05,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:53:05,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:53:05,737 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 6 states. [2018-12-02 14:53:05,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:05,809 INFO L93 Difference]: Finished difference Result 93 states and 100 transitions. [2018-12-02 14:53:05,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 14:53:05,810 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-12-02 14:53:05,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:05,810 INFO L225 Difference]: With dead ends: 93 [2018-12-02 14:53:05,810 INFO L226 Difference]: Without dead ends: 87 [2018-12-02 14:53:05,811 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-12-02 14:53:05,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-12-02 14:53:05,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 55. [2018-12-02 14:53:05,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-12-02 14:53:05,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2018-12-02 14:53:05,816 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 16 [2018-12-02 14:53:05,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:05,816 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2018-12-02 14:53:05,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:53:05,816 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2018-12-02 14:53:05,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 14:53:05,817 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:05,817 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 14:53:05,817 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:05,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:05,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1944748480, now seen corresponding path program 1 times [2018-12-02 14:53:05,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:05,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:05,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:05,818 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:05,879 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 14:53:05,879 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:05,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 14:53:05,879 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:05,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 14:53:05,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 14:53:05,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-02 14:53:05,880 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 9 states. [2018-12-02 14:53:05,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:05,994 INFO L93 Difference]: Finished difference Result 94 states and 101 transitions. [2018-12-02 14:53:05,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 14:53:05,995 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2018-12-02 14:53:05,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:05,995 INFO L225 Difference]: With dead ends: 94 [2018-12-02 14:53:05,995 INFO L226 Difference]: Without dead ends: 92 [2018-12-02 14:53:05,996 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 14:53:05,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-12-02 14:53:05,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 53. [2018-12-02 14:53:05,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-12-02 14:53:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2018-12-02 14:53:05,999 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 17 [2018-12-02 14:53:05,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:05,999 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2018-12-02 14:53:05,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 14:53:06,000 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2018-12-02 14:53:06,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 14:53:06,000 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:06,000 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 14:53:06,000 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:06,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:06,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1945179456, now seen corresponding path program 1 times [2018-12-02 14:53:06,001 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:06,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:06,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,001 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:06,071 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 14:53:06,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:06,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 14:53:06,071 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:06,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 14:53:06,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 14:53:06,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-02 14:53:06,072 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 9 states. [2018-12-02 14:53:06,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:06,207 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-12-02 14:53:06,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 14:53:06,207 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2018-12-02 14:53:06,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:06,207 INFO L225 Difference]: With dead ends: 85 [2018-12-02 14:53:06,207 INFO L226 Difference]: Without dead ends: 83 [2018-12-02 14:53:06,208 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-12-02 14:53:06,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-12-02 14:53:06,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 51. [2018-12-02 14:53:06,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-02 14:53:06,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-12-02 14:53:06,211 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 17 [2018-12-02 14:53:06,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:06,211 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-12-02 14:53:06,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 14:53:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-12-02 14:53:06,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 14:53:06,212 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:06,212 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 14:53:06,212 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:06,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:06,212 INFO L82 PathProgramCache]: Analyzing trace with hash 449409464, now seen corresponding path program 1 times [2018-12-02 14:53:06,212 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:06,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:06,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,213 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:06,240 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 14:53:06,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:06,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:53:06,241 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:06,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:53:06,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:53:06,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:53:06,241 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2018-12-02 14:53:06,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:06,342 INFO L93 Difference]: Finished difference Result 115 states and 126 transitions. [2018-12-02 14:53:06,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 14:53:06,342 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-12-02 14:53:06,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:06,343 INFO L225 Difference]: With dead ends: 115 [2018-12-02 14:53:06,343 INFO L226 Difference]: Without dead ends: 113 [2018-12-02 14:53:06,343 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-12-02 14:53:06,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-12-02 14:53:06,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 49. [2018-12-02 14:53:06,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-12-02 14:53:06,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2018-12-02 14:53:06,347 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 17 [2018-12-02 14:53:06,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:06,347 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2018-12-02 14:53:06,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:53:06,347 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2018-12-02 14:53:06,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 14:53:06,347 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:06,347 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 14:53:06,348 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:06,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:06,348 INFO L82 PathProgramCache]: Analyzing trace with hash 450948664, now seen corresponding path program 1 times [2018-12-02 14:53:06,348 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:06,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:06,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,348 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:06,373 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 14:53:06,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:06,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:53:06,373 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:06,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:53:06,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:53:06,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:53:06,374 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 6 states. [2018-12-02 14:53:06,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:06,447 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2018-12-02 14:53:06,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 14:53:06,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-12-02 14:53:06,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:06,447 INFO L225 Difference]: With dead ends: 77 [2018-12-02 14:53:06,447 INFO L226 Difference]: Without dead ends: 75 [2018-12-02 14:53:06,448 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-12-02 14:53:06,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-12-02 14:53:06,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 47. [2018-12-02 14:53:06,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-02 14:53:06,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2018-12-02 14:53:06,451 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 17 [2018-12-02 14:53:06,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:06,451 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2018-12-02 14:53:06,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:53:06,451 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2018-12-02 14:53:06,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 14:53:06,451 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:06,451 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 14:53:06,451 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:06,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:06,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1048160016, now seen corresponding path program 1 times [2018-12-02 14:53:06,452 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:06,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:06,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,452 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:06,469 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 14:53:06,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:06,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:53:06,469 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:06,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:53:06,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:53:06,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:53:06,470 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 6 states. [2018-12-02 14:53:06,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:06,545 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2018-12-02 14:53:06,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 14:53:06,545 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-12-02 14:53:06,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:06,545 INFO L225 Difference]: With dead ends: 113 [2018-12-02 14:53:06,545 INFO L226 Difference]: Without dead ends: 111 [2018-12-02 14:53:06,546 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-12-02 14:53:06,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-12-02 14:53:06,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 45. [2018-12-02 14:53:06,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-02 14:53:06,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2018-12-02 14:53:06,549 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 18 [2018-12-02 14:53:06,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:06,549 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2018-12-02 14:53:06,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:53:06,549 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2018-12-02 14:53:06,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 14:53:06,549 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:06,549 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 14:53:06,550 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:06,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:06,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1046794596, now seen corresponding path program 1 times [2018-12-02 14:53:06,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:06,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:06,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,551 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:06,600 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 14:53:06,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:06,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 14:53:06,600 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:06,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 14:53:06,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 14:53:06,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-02 14:53:06,601 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 9 states. [2018-12-02 14:53:06,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:06,687 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2018-12-02 14:53:06,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 14:53:06,688 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-12-02 14:53:06,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:06,688 INFO L225 Difference]: With dead ends: 60 [2018-12-02 14:53:06,688 INFO L226 Difference]: Without dead ends: 58 [2018-12-02 14:53:06,688 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 14:53:06,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-12-02 14:53:06,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 43. [2018-12-02 14:53:06,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-02 14:53:06,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2018-12-02 14:53:06,693 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 18 [2018-12-02 14:53:06,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:06,693 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2018-12-02 14:53:06,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 14:53:06,694 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2018-12-02 14:53:06,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 14:53:06,694 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:06,694 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 14:53:06,695 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:06,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:06,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1094509846, now seen corresponding path program 1 times [2018-12-02 14:53:06,695 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:06,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:06,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,696 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:06,751 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 14:53:06,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:06,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 14:53:06,751 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:06,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 14:53:06,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 14:53:06,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-02 14:53:06,752 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 9 states. [2018-12-02 14:53:06,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:06,826 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-12-02 14:53:06,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 14:53:06,826 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-12-02 14:53:06,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:06,827 INFO L225 Difference]: With dead ends: 44 [2018-12-02 14:53:06,827 INFO L226 Difference]: Without dead ends: 40 [2018-12-02 14:53:06,827 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-12-02 14:53:06,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-12-02 14:53:06,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-12-02 14:53:06,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-02 14:53:06,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-12-02 14:53:06,832 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 18 [2018-12-02 14:53:06,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:06,832 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-12-02 14:53:06,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 14:53:06,832 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-12-02 14:53:06,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 14:53:06,833 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:06,833 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 14:53:06,833 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:06,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:06,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1866774741, now seen corresponding path program 1 times [2018-12-02 14:53:06,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:06,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:06,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,834 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:06,891 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 14:53:06,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:06,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 14:53:06,891 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:06,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 14:53:06,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 14:53:06,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-02 14:53:06,892 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 9 states. [2018-12-02 14:53:06,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:06,980 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2018-12-02 14:53:06,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 14:53:06,980 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-12-02 14:53:06,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:06,980 INFO L225 Difference]: With dead ends: 55 [2018-12-02 14:53:06,981 INFO L226 Difference]: Without dead ends: 53 [2018-12-02 14:53:06,981 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 14:53:06,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-02 14:53:06,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 37. [2018-12-02 14:53:06,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-02 14:53:06,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-12-02 14:53:06,984 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 19 [2018-12-02 14:53:06,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:06,984 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-12-02 14:53:06,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 14:53:06,984 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-12-02 14:53:06,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 14:53:06,984 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:06,984 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 14:53:06,985 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:06,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:06,985 INFO L82 PathProgramCache]: Analyzing trace with hash 947355911, now seen corresponding path program 1 times [2018-12-02 14:53:06,985 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:06,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:06,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:06,986 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:07,010 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 14:53:07,010 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:07,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 14:53:07,010 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:07,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 14:53:07,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 14:53:07,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-02 14:53:07,011 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 7 states. [2018-12-02 14:53:07,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:07,077 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2018-12-02 14:53:07,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 14:53:07,077 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-02 14:53:07,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:07,077 INFO L225 Difference]: With dead ends: 53 [2018-12-02 14:53:07,077 INFO L226 Difference]: Without dead ends: 51 [2018-12-02 14:53:07,078 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-12-02 14:53:07,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-02 14:53:07,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 35. [2018-12-02 14:53:07,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-02 14:53:07,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2018-12-02 14:53:07,081 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 20 [2018-12-02 14:53:07,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:07,081 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2018-12-02 14:53:07,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 14:53:07,081 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2018-12-02 14:53:07,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 14:53:07,081 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:53:07,081 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 14:53:07,082 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:53:07,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:53:07,082 INFO L82 PathProgramCache]: Analyzing trace with hash -696734716, now seen corresponding path program 1 times [2018-12-02 14:53:07,082 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:53:07,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:07,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:53:07,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:53:07,083 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:53:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:53:07,103 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 14:53:07,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:53:07,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:53:07,104 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:53:07,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:53:07,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:53:07,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:53:07,104 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 6 states. [2018-12-02 14:53:07,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:53:07,171 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2018-12-02 14:53:07,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 14:53:07,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-12-02 14:53:07,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:53:07,171 INFO L225 Difference]: With dead ends: 49 [2018-12-02 14:53:07,171 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 14:53:07,172 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-12-02 14:53:07,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 14:53:07,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 14:53:07,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 14:53:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 14:53:07,172 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-12-02 14:53:07,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:53:07,172 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 14:53:07,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:53:07,172 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 14:53:07,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 14:53:07,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 14:53:07,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:53:07,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 14:53:07,415 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 13 [2018-12-02 14:53:07,417 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 14:53:07,417 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 14:53:07,417 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 14:53:07,417 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 14:53:07,417 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 14:53:07,417 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 14:53:07,417 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 14:53:07,417 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 79) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 390) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 385) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 239) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 397) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 391) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point L77(lines 77 87) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point L135(lines 135 157) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point L292(line 292) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 340) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 196) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L451 ceAbstractionStarter]: At program point L309(lines 27 390) the Hoare annotation is: true [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point L210(lines 210 245) no Hoare annotation was computed. [2018-12-02 14:53:07,418 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 248) no Hoare annotation was computed. [2018-12-02 14:53:07,419 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 193) no Hoare annotation was computed. [2018-12-02 14:53:07,419 INFO L448 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2018-12-02 14:53:07,419 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 382) no Hoare annotation was computed. [2018-12-02 14:53:07,419 INFO L448 ceAbstractionStarter]: For program point L326(lines 326 349) no Hoare annotation was computed. [2018-12-02 14:53:07,419 INFO L448 ceAbstractionStarter]: For program point L260(lines 260 388) no Hoare annotation was computed. [2018-12-02 14:53:07,419 INFO L448 ceAbstractionStarter]: For program point L128(lines 128 195) no Hoare annotation was computed. [2018-12-02 14:53:07,419 INFO L448 ceAbstractionStarter]: For program point L219(line 219) no Hoare annotation was computed. [2018-12-02 14:53:07,419 INFO L448 ceAbstractionStarter]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 361) no Hoare annotation was computed. [2018-12-02 14:53:07,419 INFO L444 ceAbstractionStarter]: At program point L244(lines 96 246) the Hoare annotation is: (and (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (<= 1 main_~main__t~0)) [2018-12-02 14:53:07,419 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-02 14:53:07,419 INFO L448 ceAbstractionStarter]: For program point L302(lines 302 310) no Hoare annotation was computed. [2018-12-02 14:53:07,419 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 397) no Hoare annotation was computed. [2018-12-02 14:53:07,419 INFO L448 ceAbstractionStarter]: For program point L137(line 137) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 183) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point L96(lines 96 246) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point L319(lines 319 384) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 397) the Hoare annotation is: true [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point L47(line 47) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point L171(line 171) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point L361(line 361) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point L328(line 328) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 237) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point L147(lines 147 155) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point L304(line 304) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 396) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point L271(lines 271 386) no Hoare annotation was computed. [2018-12-02 14:53:07,420 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 89) no Hoare annotation was computed. [2018-12-02 14:53:07,421 INFO L444 ceAbstractionStarter]: At program point L379(lines 277 386) 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 14:53:07,421 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 149) no Hoare annotation was computed. [2018-12-02 14:53:07,421 INFO L444 ceAbstractionStarter]: At program point L346(lines 27 390) the Hoare annotation is: (and (or (<= 1 main_~main__t~0) (= main_~__VERIFIER_assert__cond~0 1)) (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (<= 0 main_~main__t~0)) [2018-12-02 14:53:07,421 INFO L448 ceAbstractionStarter]: For program point L181(lines 181 191) no Hoare annotation was computed. [2018-12-02 14:53:07,421 INFO L448 ceAbstractionStarter]: For program point L371(lines 371 380) no Hoare annotation was computed. [2018-12-02 14:53:07,421 INFO L448 ceAbstractionStarter]: For program point L338(lines 338 347) no Hoare annotation was computed. [2018-12-02 14:53:07,421 INFO L448 ceAbstractionStarter]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 273) no Hoare annotation was computed. [2018-12-02 14:53:07,421 INFO L448 ceAbstractionStarter]: For program point L107(lines 107 198) no Hoare annotation was computed. [2018-12-02 14:53:07,421 INFO L448 ceAbstractionStarter]: For program point L231(line 231) no Hoare annotation was computed. [2018-12-02 14:53:07,421 INFO L448 ceAbstractionStarter]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 231) no Hoare annotation was computed. [2018-12-02 14:53:07,421 INFO L448 ceAbstractionStarter]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 292) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L444 ceAbstractionStarter]: At program point L190(lines 51 248) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (<= 1 main_~main__t~0)) [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 171) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point L149(line 149) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point L273(line 273) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 304) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 328) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point L100(lines 100 204) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 250) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point L290(lines 290 312) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 373) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point L183(line 183) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 67) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point L373(line 373) no Hoare annotation was computed. [2018-12-02 14:53:07,422 INFO L448 ceAbstractionStarter]: For program point L340(line 340) no Hoare annotation was computed. [2018-12-02 14:53:07,423 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 109) no Hoare annotation was computed. [2018-12-02 14:53:07,423 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-02 14:53:07,423 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2018-12-02 14:53:07,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:53:07 BoogieIcfgContainer [2018-12-02 14:53:07,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 14:53:07,435 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 14:53:07,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 14:53:07,435 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 14:53:07,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:53:04" (3/4) ... [2018-12-02 14:53:07,438 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 14:53:07,443 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 14:53:07,443 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 14:53:07,447 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-02 14:53:07,447 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 14:53:07,492 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_845461b9-c5ea-4fe8-9fbc-71bf4c4d1289/bin-2019/utaipan/witness.graphml [2018-12-02 14:53:07,492 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 14:53:07,493 INFO L168 Benchmark]: Toolchain (without parser) took 3323.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.4 MB). Free memory was 952.4 MB in the beginning and 838.6 MB in the end (delta: 113.8 MB). Peak memory consumption was 295.2 MB. Max. memory is 11.5 GB. [2018-12-02 14:53:07,493 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:53:07,494 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.88 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-02 14:53:07,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-02 14:53:07,494 INFO L168 Benchmark]: Boogie Preprocessor took 19.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:53:07,494 INFO L168 Benchmark]: RCFGBuilder took 227.48 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-02 14:53:07,495 INFO L168 Benchmark]: TraceAbstraction took 2812.79 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 91.8 MB). Free memory was 1.1 GB in the beginning and 838.6 MB in the end (delta: 213.4 MB). Peak memory consumption was 305.1 MB. Max. memory is 11.5 GB. [2018-12-02 14:53:07,495 INFO L168 Benchmark]: Witness Printer took 57.73 ms. Allocated memory is still 1.2 GB. Free memory is still 838.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:53:07,496 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.88 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 227.48 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2812.79 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 91.8 MB). Free memory was 1.1 GB in the beginning and 838.6 MB in the end (delta: 213.4 MB). Peak memory consumption was 305.1 MB. Max. memory is 11.5 GB. * Witness Printer took 57.73 ms. Allocated memory is still 1.2 GB. Free memory is still 838.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 219]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 149]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 47]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 79]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 137]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 171]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 109]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 373]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 304]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 183]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 292]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 121]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 328]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 340]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 361]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 231]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 67]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 273]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 277]: Loop Invariant Derived loop invariant: ((!(0 == __VERIFIER_assert__cond) && main__t + 1 <= main__tagbuf_len) && __VERIFIER_assert__cond == 1) && 0 <= main__t - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: main__t <= main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: main__t + 1 <= main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((1 <= main__t || __VERIFIER_assert__cond == 1) && main__t + 1 <= main__tagbuf_len) && 0 <= main__t - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 80 locations, 18 error locations. SAFE Result, 2.7s OverallTime, 18 OverallIterations, 1 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 872 SDtfs, 2467 SDslu, 1673 SDs, 0 SdLazy, 1819 SolverSat, 263 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred 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, 614 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 14 NumberOfFragments, 54 HoareAnnotationTreeSize, 9 FomulaSimplifications, 9989709 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 16618 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 11454 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...