./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label30_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label30_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/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 5e9f687b42339afcb86609638d702908304a6728 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:23:51,910 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:23:51,911 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:23:51,918 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:23:51,918 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:23:51,919 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:23:51,920 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:23:51,921 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:23:51,922 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:23:51,922 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:23:51,923 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:23:51,923 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:23:51,924 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:23:51,924 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:23:51,925 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:23:51,926 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:23:51,926 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:23:51,927 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:23:51,929 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:23:51,930 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:23:51,930 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:23:51,931 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:23:51,933 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:23:51,933 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:23:51,933 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:23:51,933 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:23:51,934 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:23:51,935 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:23:51,935 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:23:51,936 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:23:51,936 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:23:51,937 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:23:51,937 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:23:51,937 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:23:51,938 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:23:51,938 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:23:51,938 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 11:23:51,948 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:23:51,948 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:23:51,949 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:23:51,949 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:23:51,949 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:23:51,949 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:23:51,949 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:23:51,949 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 11:23:51,949 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:23:51,949 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:23:51,949 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 11:23:51,950 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 11:23:51,950 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:23:51,950 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:23:51,950 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:23:51,950 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:23:51,950 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:23:51,951 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:23:51,951 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:23:51,951 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:23:51,951 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:23:51,951 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:23:51,951 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:23:51,951 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:23:51,951 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:23:51,952 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:23:51,952 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:23:51,952 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:23:51,952 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:23:51,952 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:23:51,952 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:23:51,952 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:23:51,952 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:23:51,952 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 11:23:51,952 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:23:51,952 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:23:51,952 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 11:23:51,953 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_05a03d33-dd96-4c1f-bd64-028586760025/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 -> 5e9f687b42339afcb86609638d702908304a6728 [2018-11-18 11:23:51,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:23:51,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:23:51,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:23:51,986 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:23:51,986 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:23:51,987 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label30_true-unreach-call.c [2018-11-18 11:23:52,025 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/data/6146f394d/6b5fb5b164244d9ab625eb9723125248/FLAGa0daf015d [2018-11-18 11:23:52,490 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:23:52,490 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/sv-benchmarks/c/eca-rers2012/Problem10_label30_true-unreach-call.c [2018-11-18 11:23:52,500 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/data/6146f394d/6b5fb5b164244d9ab625eb9723125248/FLAGa0daf015d [2018-11-18 11:23:53,006 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/data/6146f394d/6b5fb5b164244d9ab625eb9723125248 [2018-11-18 11:23:53,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:23:53,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:23:53,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:23:53,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:23:53,011 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:23:53,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:53" (1/1) ... [2018-11-18 11:23:53,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4915a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:53, skipping insertion in model container [2018-11-18 11:23:53,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:53" (1/1) ... [2018-11-18 11:23:53,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:23:53,052 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:23:53,277 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:23:53,281 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:23:53,350 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:23:53,361 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:23:53,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:53 WrapperNode [2018-11-18 11:23:53,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:23:53,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:23:53,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:23:53,363 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:23:53,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:53" (1/1) ... [2018-11-18 11:23:53,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:53" (1/1) ... [2018-11-18 11:23:53,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:23:53,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:23:53,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:23:53,433 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:23:53,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:53" (1/1) ... [2018-11-18 11:23:53,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:53" (1/1) ... [2018-11-18 11:23:53,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:53" (1/1) ... [2018-11-18 11:23:53,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:53" (1/1) ... [2018-11-18 11:23:53,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:53" (1/1) ... [2018-11-18 11:23:53,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:53" (1/1) ... [2018-11-18 11:23:53,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:53" (1/1) ... [2018-11-18 11:23:53,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:23:53,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:23:53,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:23:53,483 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:23:53,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/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 [2018-11-18 11:23:53,531 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 11:23:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:23:53,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:23:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 11:23:53,532 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 11:23:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:23:53,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:23:53,532 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:23:53,532 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:23:54,299 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:23:54,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:54 BoogieIcfgContainer [2018-11-18 11:23:54,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:23:54,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:23:54,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:23:54,302 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:23:54,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:23:53" (1/3) ... [2018-11-18 11:23:54,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f832111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:54, skipping insertion in model container [2018-11-18 11:23:54,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:53" (2/3) ... [2018-11-18 11:23:54,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f832111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:54, skipping insertion in model container [2018-11-18 11:23:54,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:54" (3/3) ... [2018-11-18 11:23:54,305 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label30_true-unreach-call.c [2018-11-18 11:23:54,311 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:23:54,316 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:23:54,325 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:23:54,348 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:23:54,348 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:23:54,348 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:23:54,348 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:23:54,348 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:23:54,349 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:23:54,349 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:23:54,349 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:23:54,366 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-18 11:23:54,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 11:23:54,371 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:23:54,372 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:23:54,374 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:23:54,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:23:54,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1431628569, now seen corresponding path program 1 times [2018-11-18 11:23:54,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:23:54,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:54,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:23:54,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:54,409 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:23:54,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:23:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:23:54,605 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:23:54,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:23:54,606 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:23:54,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:23:54,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:23:54,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:23:54,624 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-18 11:23:55,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:23:55,277 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-18 11:23:55,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:23:55,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2018-11-18 11:23:55,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:23:55,288 INFO L225 Difference]: With dead ends: 574 [2018-11-18 11:23:55,289 INFO L226 Difference]: Without dead ends: 356 [2018-11-18 11:23:55,292 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:23:55,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-18 11:23:55,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-18 11:23:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-18 11:23:55,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-11-18 11:23:55,339 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 41 [2018-11-18 11:23:55,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:23:55,339 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-11-18 11:23:55,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:23:55,340 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-11-18 11:23:55,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-11-18 11:23:55,344 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:23:55,344 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:23:55,345 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:23:55,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:23:55,345 INFO L82 PathProgramCache]: Analyzing trace with hash -965604765, now seen corresponding path program 1 times [2018-11-18 11:23:55,345 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:23:55,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:55,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:23:55,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:55,347 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:23:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:23:55,497 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:23:55,498 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:23:55,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:23:55,498 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:23:55,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:23:55,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:23:55,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:23:55,501 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 5 states. [2018-11-18 11:23:56,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:23:56,358 INFO L93 Difference]: Finished difference Result 1287 states and 2312 transitions. [2018-11-18 11:23:56,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 11:23:56,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2018-11-18 11:23:56,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:23:56,365 INFO L225 Difference]: With dead ends: 1287 [2018-11-18 11:23:56,365 INFO L226 Difference]: Without dead ends: 937 [2018-11-18 11:23:56,368 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:23:56,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2018-11-18 11:23:56,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 924. [2018-11-18 11:23:56,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 924 states. [2018-11-18 11:23:56,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1441 transitions. [2018-11-18 11:23:56,403 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1441 transitions. Word has length 124 [2018-11-18 11:23:56,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:23:56,404 INFO L480 AbstractCegarLoop]: Abstraction has 924 states and 1441 transitions. [2018-11-18 11:23:56,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:23:56,404 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1441 transitions. [2018-11-18 11:23:56,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-18 11:23:56,408 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:23:56,408 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:23:56,408 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:23:56,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:23:56,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1367473027, now seen corresponding path program 1 times [2018-11-18 11:23:56,409 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:23:56,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:56,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:23:56,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:56,410 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:23:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:23:56,563 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:23:56,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:23:56,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 11:23:56,564 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:23:56,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:23:56,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:23:56,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:23:56,565 INFO L87 Difference]: Start difference. First operand 924 states and 1441 transitions. Second operand 6 states. [2018-11-18 11:23:57,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:23:57,395 INFO L93 Difference]: Finished difference Result 2533 states and 4079 transitions. [2018-11-18 11:23:57,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:23:57,395 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-11-18 11:23:57,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:23:57,401 INFO L225 Difference]: With dead ends: 2533 [2018-11-18 11:23:57,401 INFO L226 Difference]: Without dead ends: 1615 [2018-11-18 11:23:57,404 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:23:57,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2018-11-18 11:23:57,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1584. [2018-11-18 11:23:57,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1584 states. [2018-11-18 11:23:57,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2317 transitions. [2018-11-18 11:23:57,433 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2317 transitions. Word has length 140 [2018-11-18 11:23:57,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:23:57,434 INFO L480 AbstractCegarLoop]: Abstraction has 1584 states and 2317 transitions. [2018-11-18 11:23:57,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:23:57,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2317 transitions. [2018-11-18 11:23:57,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-11-18 11:23:57,437 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:23:57,437 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:23:57,437 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:23:57,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:23:57,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1368152781, now seen corresponding path program 1 times [2018-11-18 11:23:57,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:23:57,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:57,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:23:57,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:57,439 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:23:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:23:57,590 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:23:57,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:23:57,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 11:23:57,590 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:23:57,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:23:57,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:23:57,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:23:57,591 INFO L87 Difference]: Start difference. First operand 1584 states and 2317 transitions. Second operand 6 states. [2018-11-18 11:23:58,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:23:58,127 INFO L93 Difference]: Finished difference Result 3502 states and 5313 transitions. [2018-11-18 11:23:58,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:23:58,128 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2018-11-18 11:23:58,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:23:58,134 INFO L225 Difference]: With dead ends: 3502 [2018-11-18 11:23:58,135 INFO L226 Difference]: Without dead ends: 1924 [2018-11-18 11:23:58,138 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:23:58,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2018-11-18 11:23:58,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1885. [2018-11-18 11:23:58,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2018-11-18 11:23:58,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2678 transitions. [2018-11-18 11:23:58,172 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2678 transitions. Word has length 164 [2018-11-18 11:23:58,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:23:58,173 INFO L480 AbstractCegarLoop]: Abstraction has 1885 states and 2678 transitions. [2018-11-18 11:23:58,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:23:58,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2678 transitions. [2018-11-18 11:23:58,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-11-18 11:23:58,176 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:23:58,176 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:23:58,176 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:23:58,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:23:58,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1210373809, now seen corresponding path program 1 times [2018-11-18 11:23:58,177 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:23:58,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:58,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:23:58,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:58,178 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:23:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:23:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:23:58,288 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:23:58,288 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:23:58,289 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-11-18 11:23:58,290 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [229], [231], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 11:23:58,320 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:23:58,320 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:23:58,981 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:23:58,982 INFO L272 AbstractInterpreter]: Visited 92 different actions 352 times. Merged at 7 different actions 20 times. Never widened. Performed 3341 root evaluator evaluations with a maximum evaluation depth of 16. Performed 3341 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 11:23:58,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:23:59,001 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:23:59,001 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:23:59,001 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:23:59,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:23:59,012 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:23:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:23:59,081 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:23:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:23:59,183 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:23:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:23:59,319 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 11:23:59,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-18 11:23:59,319 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 11:23:59,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:23:59,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:23:59,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-18 11:23:59,320 INFO L87 Difference]: Start difference. First operand 1885 states and 2678 transitions. Second operand 9 states. [2018-11-18 11:24:00,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:24:00,756 INFO L93 Difference]: Finished difference Result 5379 states and 8820 transitions. [2018-11-18 11:24:00,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 11:24:00,757 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2018-11-18 11:24:00,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:24:00,783 INFO L225 Difference]: With dead ends: 5379 [2018-11-18 11:24:00,783 INFO L226 Difference]: Without dead ends: 3500 [2018-11-18 11:24:00,803 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 393 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2018-11-18 11:24:00,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3500 states. [2018-11-18 11:24:00,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3500 to 3412. [2018-11-18 11:24:00,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3412 states. [2018-11-18 11:24:00,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 4805 transitions. [2018-11-18 11:24:00,908 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 4805 transitions. Word has length 195 [2018-11-18 11:24:00,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:24:00,909 INFO L480 AbstractCegarLoop]: Abstraction has 3412 states and 4805 transitions. [2018-11-18 11:24:00,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:24:00,909 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 4805 transitions. [2018-11-18 11:24:00,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-11-18 11:24:00,919 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:24:00,920 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:24:00,920 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:24:00,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:00,920 INFO L82 PathProgramCache]: Analyzing trace with hash -299276356, now seen corresponding path program 1 times [2018-11-18 11:24:00,920 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:24:00,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:00,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:00,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:00,921 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:24:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:24:01,035 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:24:01,035 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:24:01,035 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-11-18 11:24:01,036 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [229], [231], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [546], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 11:24:01,038 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:24:01,039 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:24:01,237 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 11:24:01,237 INFO L272 AbstractInterpreter]: Visited 88 different actions 88 times. Never merged. Never widened. Performed 770 root evaluator evaluations with a maximum evaluation depth of 14. Performed 770 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Never found a fixpoint. Largest state had 24 variables. [2018-11-18 11:24:01,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:01,239 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 11:24:01,583 INFO L227 lantSequenceWeakener]: Weakened 193 states. On average, predicates are now at 73.21% of their original sizes. [2018-11-18 11:24:01,583 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 11:24:01,616 INFO L415 sIntCurrentIteration]: We unified 201 AI predicates to 201 [2018-11-18 11:24:01,617 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 11:24:01,617 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 11:24:01,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-18 11:24:01,617 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:24:01,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:24:01,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:24:01,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:24:01,618 INFO L87 Difference]: Start difference. First operand 3412 states and 4805 transitions. Second operand 6 states. [2018-11-18 11:24:12,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:24:12,494 INFO L93 Difference]: Finished difference Result 6964 states and 9802 transitions. [2018-11-18 11:24:12,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:24:12,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 202 [2018-11-18 11:24:12,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:24:12,510 INFO L225 Difference]: With dead ends: 6964 [2018-11-18 11:24:12,510 INFO L226 Difference]: Without dead ends: 3558 [2018-11-18 11:24:12,530 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 202 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:24:12,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2018-11-18 11:24:12,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3556. [2018-11-18 11:24:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3556 states. [2018-11-18 11:24:12,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3556 states to 3556 states and 4956 transitions. [2018-11-18 11:24:12,626 INFO L78 Accepts]: Start accepts. Automaton has 3556 states and 4956 transitions. Word has length 202 [2018-11-18 11:24:12,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:24:12,627 INFO L480 AbstractCegarLoop]: Abstraction has 3556 states and 4956 transitions. [2018-11-18 11:24:12,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:24:12,627 INFO L276 IsEmpty]: Start isEmpty. Operand 3556 states and 4956 transitions. [2018-11-18 11:24:12,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-11-18 11:24:12,640 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:24:12,641 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:24:12,641 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:24:12,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:12,641 INFO L82 PathProgramCache]: Analyzing trace with hash 970569073, now seen corresponding path program 1 times [2018-11-18 11:24:12,641 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:24:12,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:12,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:12,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:12,642 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:24:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 108 proven. 154 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-18 11:24:12,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:24:12,843 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:24:12,843 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 283 with the following transitions: [2018-11-18 11:24:12,844 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [229], [231], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [534], [535], [539], [543], [546], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 11:24:12,846 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:24:12,846 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:24:13,122 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:24:13,123 INFO L272 AbstractInterpreter]: Visited 93 different actions 280 times. Merged at 8 different actions 24 times. Never widened. Performed 2652 root evaluator evaluations with a maximum evaluation depth of 16. Performed 2652 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 5 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 11:24:13,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:13,128 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:24:13,128 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:24:13,128 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:24:13,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:13,136 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:24:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:13,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:24:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 301 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-11-18 11:24:13,303 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:24:13,474 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 183 proven. 77 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-18 11:24:13,490 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 11:24:13,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-11-18 11:24:13,490 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 11:24:13,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 11:24:13,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 11:24:13,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:24:13,492 INFO L87 Difference]: Start difference. First operand 3556 states and 4956 transitions. Second operand 11 states. [2018-11-18 11:24:15,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:24:15,179 INFO L93 Difference]: Finished difference Result 10416 states and 15706 transitions. [2018-11-18 11:24:15,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 11:24:15,180 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 282 [2018-11-18 11:24:15,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:24:15,191 INFO L225 Difference]: With dead ends: 10416 [2018-11-18 11:24:15,191 INFO L226 Difference]: Without dead ends: 2891 [2018-11-18 11:24:15,238 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 571 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2018-11-18 11:24:15,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states. [2018-11-18 11:24:15,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 2507. [2018-11-18 11:24:15,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2507 states. [2018-11-18 11:24:15,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 3140 transitions. [2018-11-18 11:24:15,301 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 3140 transitions. Word has length 282 [2018-11-18 11:24:15,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:24:15,302 INFO L480 AbstractCegarLoop]: Abstraction has 2507 states and 3140 transitions. [2018-11-18 11:24:15,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 11:24:15,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 3140 transitions. [2018-11-18 11:24:15,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-11-18 11:24:15,307 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:24:15,308 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:24:15,308 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:24:15,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:15,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1311023255, now seen corresponding path program 1 times [2018-11-18 11:24:15,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:24:15,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:15,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:15,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:15,309 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:24:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:15,497 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 264 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-18 11:24:15,497 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:24:15,497 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:24:15,498 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 319 with the following transitions: [2018-11-18 11:24:15,498 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [229], [231], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 11:24:15,501 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:24:15,501 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:24:15,772 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:24:15,773 INFO L272 AbstractInterpreter]: Visited 126 different actions 375 times. Merged at 8 different actions 21 times. Never widened. Performed 3884 root evaluator evaluations with a maximum evaluation depth of 16. Performed 3884 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 11:24:15,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:15,775 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:24:15,775 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:24:15,775 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:24:15,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:15,781 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:24:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:15,832 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:24:15,909 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 264 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-18 11:24:15,909 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:24:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 264 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-18 11:24:16,003 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 11:24:16,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-18 11:24:16,003 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 11:24:16,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:24:16,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:24:16,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:24:16,004 INFO L87 Difference]: Start difference. First operand 2507 states and 3140 transitions. Second operand 9 states. [2018-11-18 11:24:16,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:24:16,609 INFO L93 Difference]: Finished difference Result 4738 states and 5990 transitions. [2018-11-18 11:24:16,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 11:24:16,609 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 318 [2018-11-18 11:24:16,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:24:16,616 INFO L225 Difference]: With dead ends: 4738 [2018-11-18 11:24:16,616 INFO L226 Difference]: Without dead ends: 2381 [2018-11-18 11:24:16,621 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 638 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2018-11-18 11:24:16,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2018-11-18 11:24:16,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2291. [2018-11-18 11:24:16,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2291 states. [2018-11-18 11:24:16,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 2626 transitions. [2018-11-18 11:24:16,672 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 2626 transitions. Word has length 318 [2018-11-18 11:24:16,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:24:16,672 INFO L480 AbstractCegarLoop]: Abstraction has 2291 states and 2626 transitions. [2018-11-18 11:24:16,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:24:16,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 2626 transitions. [2018-11-18 11:24:16,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-11-18 11:24:16,678 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:24:16,678 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:24:16,679 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:24:16,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:16,679 INFO L82 PathProgramCache]: Analyzing trace with hash -2136184651, now seen corresponding path program 1 times [2018-11-18 11:24:16,679 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:24:16,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:16,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:16,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:16,680 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:24:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:16,830 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-11-18 11:24:16,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:24:16,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:24:16,831 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:24:16,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:24:16,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:24:16,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:24:16,832 INFO L87 Difference]: Start difference. First operand 2291 states and 2626 transitions. Second operand 4 states. [2018-11-18 11:24:17,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:24:17,292 INFO L93 Difference]: Finished difference Result 5011 states and 5829 transitions. [2018-11-18 11:24:17,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:24:17,292 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 328 [2018-11-18 11:24:17,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:24:17,296 INFO L225 Difference]: With dead ends: 5011 [2018-11-18 11:24:17,296 INFO L226 Difference]: Without dead ends: 2671 [2018-11-18 11:24:17,298 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:24:17,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2018-11-18 11:24:17,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2379. [2018-11-18 11:24:17,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2379 states. [2018-11-18 11:24:17,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 2707 transitions. [2018-11-18 11:24:17,325 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 2707 transitions. Word has length 328 [2018-11-18 11:24:17,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:24:17,325 INFO L480 AbstractCegarLoop]: Abstraction has 2379 states and 2707 transitions. [2018-11-18 11:24:17,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:24:17,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 2707 transitions. [2018-11-18 11:24:17,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2018-11-18 11:24:17,329 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:24:17,329 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:24:17,330 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:24:17,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:17,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1784904567, now seen corresponding path program 1 times [2018-11-18 11:24:17,330 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:24:17,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:17,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:17,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:17,331 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:24:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:17,669 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 108 proven. 241 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 11:24:17,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:24:17,670 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:24:17,670 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 335 with the following transitions: [2018-11-18 11:24:17,670 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [229], [231], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [610], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 11:24:17,672 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:24:17,672 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:24:17,863 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:24:17,863 INFO L272 AbstractInterpreter]: Visited 126 different actions 375 times. Merged at 8 different actions 21 times. Never widened. Performed 3881 root evaluator evaluations with a maximum evaluation depth of 14. Performed 3881 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 11:24:17,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:17,867 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:24:17,867 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:24:17,868 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:24:17,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:17,874 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:24:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:17,925 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:24:23,433 WARN L180 SmtUtils]: Spent 5.43 s on a formula simplification. DAG size of input: 90 DAG size of output: 47 [2018-11-18 11:24:23,576 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-11-18 11:24:23,576 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:24:23,860 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:23,915 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 118 [2018-11-18 11:24:24,721 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,723 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,727 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,730 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,734 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,738 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,742 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,745 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,749 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,752 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,755 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,758 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,761 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,764 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,767 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,770 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,773 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,775 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,778 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,781 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,784 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,787 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,790 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,794 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,797 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,800 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,803 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,806 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,809 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,812 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,815 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,818 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,821 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,825 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,828 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,831 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,834 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,836 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,839 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,842 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,845 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,848 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,851 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,854 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,857 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,860 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,862 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,866 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,868 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,871 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,874 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,877 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,879 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,882 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,885 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,887 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,890 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,893 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,896 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,899 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,901 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,904 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,906 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,909 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,911 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,914 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,916 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,919 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,921 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,924 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,926 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,929 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,931 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,934 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,936 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,939 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,941 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,944 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,947 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,949 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,952 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,954 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,957 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,959 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,962 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,964 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,967 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,969 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,972 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,974 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,977 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,979 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,982 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,985 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,988 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,991 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,994 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,997 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:24,999 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:25,002 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:25,005 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:25,008 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:25,011 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:25,013 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:25,016 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:25,019 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:25,021 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:25,024 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 11:24:25,536 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 108 proven. 244 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 11:24:25,551 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 11:24:25,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 21 [2018-11-18 11:24:25,551 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 11:24:25,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 11:24:25,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 11:24:25,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2018-11-18 11:24:25,552 INFO L87 Difference]: Start difference. First operand 2379 states and 2707 transitions. Second operand 16 states. [2018-11-18 11:24:32,768 WARN L180 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2018-11-18 11:24:33,636 WARN L180 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 27 [2018-11-18 11:24:36,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:24:36,315 INFO L93 Difference]: Finished difference Result 6401 states and 7661 transitions. [2018-11-18 11:24:36,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-18 11:24:36,315 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 334 [2018-11-18 11:24:36,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:24:36,322 INFO L225 Difference]: With dead ends: 6401 [2018-11-18 11:24:36,322 INFO L226 Difference]: Without dead ends: 4172 [2018-11-18 11:24:36,324 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 726 GetRequests, 677 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=460, Invalid=1702, Unknown=0, NotChecked=0, Total=2162 [2018-11-18 11:24:36,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4172 states. [2018-11-18 11:24:36,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4172 to 3826. [2018-11-18 11:24:36,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3826 states. [2018-11-18 11:24:36,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 4472 transitions. [2018-11-18 11:24:36,373 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 4472 transitions. Word has length 334 [2018-11-18 11:24:36,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:24:36,373 INFO L480 AbstractCegarLoop]: Abstraction has 3826 states and 4472 transitions. [2018-11-18 11:24:36,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 11:24:36,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 4472 transitions. [2018-11-18 11:24:36,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-11-18 11:24:36,378 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:24:36,379 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:24:36,379 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:24:36,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:36,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1047573034, now seen corresponding path program 1 times [2018-11-18 11:24:36,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:24:36,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:36,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:36,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:36,380 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:24:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2018-11-18 11:24:36,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:24:36,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:24:36,493 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:24:36,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:24:36,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:24:36,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:24:36,493 INFO L87 Difference]: Start difference. First operand 3826 states and 4472 transitions. Second operand 4 states. [2018-11-18 11:24:36,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:24:36,947 INFO L93 Difference]: Finished difference Result 8677 states and 10282 transitions. [2018-11-18 11:24:36,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:24:36,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 353 [2018-11-18 11:24:36,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:24:36,949 INFO L225 Difference]: With dead ends: 8677 [2018-11-18 11:24:36,949 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:24:36,956 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:24:36,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:24:36,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:24:36,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:24:36,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:24:36,957 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 353 [2018-11-18 11:24:36,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:24:36,957 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:24:36,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:24:36,957 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:24:36,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:24:36,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 11:24:37,087 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,116 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,163 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,175 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,183 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,214 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,222 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,232 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,238 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,306 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 241 [2018-11-18 11:24:37,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,326 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,354 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,354 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,378 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,396 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:24:37,522 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 238 [2018-11-18 11:24:38,193 WARN L180 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 52 [2018-11-18 11:24:38,688 WARN L180 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 53 [2018-11-18 11:24:39,289 WARN L180 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 53 [2018-11-18 11:24:39,291 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:24:39,291 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a19~0)| ~a19~0) (= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|)) [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 11:24:39,292 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 11:24:39,293 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 11:24:39,294 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 11:24:39,295 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 11:24:39,295 INFO L425 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-11-18 11:24:39,295 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-11-18 11:24:39,295 INFO L425 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-11-18 11:24:39,295 INFO L425 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-11-18 11:24:39,303 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,303 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-11-18 11:24:39,304 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,305 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,306 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,306 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,306 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,310 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-11-18 11:24:39,311 INFO L425 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 11:24:39,312 INFO L425 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse9 (= |old(~a19~0)| ~a19~0)) (.cse6 (= |old(~a10~0)| ~a10~0)) (.cse7 (= ~a1~0 |old(~a1~0)|))) (let ((.cse2 (< 2 |old(~a10~0)|)) (.cse1 (< 8 |old(~a19~0)|)) (.cse0 (and .cse9 .cse6 .cse7)) (.cse4 (< 206 |old(~a1~0)|)) (.cse5 (= 2 |old(~a10~0)|)) (.cse3 (= 7 |old(~a19~0)|)) (.cse8 (= 10 |old(~a19~0)|))) (and (or (not (= 1 |old(~a10~0)|)) .cse0) (or .cse1 .cse2 (< 23 |old(~a1~0)|) .cse0) (or .cse3 .cse4 .cse5 .cse2 .cse0) (or (not (= 9 |old(~a19~0)|)) (and (<= ~a19~0 |old(~a19~0)|) .cse6 (<= 9 ~a19~0) .cse7)) (or .cse0 .cse3 .cse1 (= 8 |old(~a19~0)|)) (or .cse0 .cse4 (or .cse8 (not .cse5))) (or (or (= 3 |old(~a10~0)|) .cse3 .cse8) (and (and .cse9 .cse6) .cse7))))) [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 11:24:39,313 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-11-18 11:24:39,314 INFO L425 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-11-18 11:24:39,315 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-11-18 11:24:39,315 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 11:24:39,315 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 11:24:39,315 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 11:24:39,315 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 11:24:39,315 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 11:24:39,315 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 11:24:39,315 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-11-18 11:24:39,315 INFO L425 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-11-18 11:24:39,315 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-11-18 11:24:39,315 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,315 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,315 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,317 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-11-18 11:24:39,318 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:24:39,319 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 9) (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14)) [2018-11-18 11:24:39,319 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:24:39,319 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:24:39,319 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 14 ~a4~0)) (not (= 23 |old(~a1~0)|)) (and (= |old(~a19~0)| ~a19~0) (= ~a1~0 23) (= |old(~a10~0)| ~a10~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|))) [2018-11-18 11:24:39,319 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-11-18 11:24:39,319 INFO L421 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a1~0 206)) (.cse1 (= 2 ~a10~0)) (.cse4 (<= ~a10~0 2)) (.cse2 (<= ~a19~0 8)) (.cse3 (not (= ~a19~0 7)))) (or (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and .cse0 .cse1 .cse2) (not (= 0 |old(~a10~0)|)) (and .cse0 .cse3 .cse4 (not .cse1)) (= 1 ~a10~0) (and (<= ~a19~0 |old(~a19~0)|) (<= 9 ~a19~0)) (and (<= ~a1~0 23) .cse2 .cse4) (not (= 9 |old(~a19~0)|)) (and .cse3 (not (= ~a19~0 8)) .cse2) (and (not (= ~a10~0 3)) .cse3 (not (= ~a19~0 10))) (not (= 14 ~a4~0)))) [2018-11-18 11:24:39,319 INFO L425 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-11-18 11:24:39,319 INFO L425 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-11-18 11:24:39,319 INFO L425 ceAbstractionStarter]: For program point L582-1(lines 582 591) no Hoare annotation was computed. [2018-11-18 11:24:39,319 INFO L421 ceAbstractionStarter]: At program point L582-3(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a1~0 206)) (.cse1 (= 2 ~a10~0)) (.cse4 (<= ~a10~0 2)) (.cse2 (<= ~a19~0 8)) (.cse3 (not (= ~a19~0 7)))) (or (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and .cse0 .cse1 .cse2) (not (= 0 |old(~a10~0)|)) (and .cse0 .cse3 .cse4 (not .cse1)) (= 1 ~a10~0) (and (<= ~a19~0 |old(~a19~0)|) (<= 9 ~a19~0)) (and (<= ~a1~0 23) .cse2 .cse4) (not (= 9 |old(~a19~0)|)) (and .cse3 (not (= ~a19~0 8)) .cse2) (and (not (= ~a10~0 3)) .cse3 (not (= ~a19~0 10))) (not (= 14 ~a4~0)))) [2018-11-18 11:24:39,319 INFO L425 ceAbstractionStarter]: For program point L582-4(lines 576 592) no Hoare annotation was computed. [2018-11-18 11:24:39,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:24:39 BoogieIcfgContainer [2018-11-18 11:24:39,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:24:39,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:24:39,337 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:24:39,337 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:24:39,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:54" (3/4) ... [2018-11-18 11:24:39,341 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 11:24:39,346 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 11:24:39,346 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 11:24:39,346 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 11:24:39,356 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 11:24:39,356 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 11:24:39,379 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(23 == \old(a1)) || !(0 == a12)) || ((a1 <= 206 && 2 == a10) && a19 <= 8)) || !(0 == \old(a10))) || (((a1 <= 206 && !(a19 == 7)) && a10 <= 2) && !(2 == a10))) || 1 == a10) || (a19 <= \old(a19) && 9 <= a19)) || ((a1 <= 23 && a19 <= 8) && a10 <= 2)) || !(9 == \old(a19))) || ((!(a19 == 7) && !(a19 == 8)) && a19 <= 8)) || ((!(a10 == 3) && !(a19 == 7)) && !(a19 == 10))) || !(14 == a4) [2018-11-18 11:24:39,442 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_05a03d33-dd96-4c1f-bd64-028586760025/bin-2019/utaipan/witness.graphml [2018-11-18 11:24:39,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:24:39,443 INFO L168 Benchmark]: Toolchain (without parser) took 46434.09 ms. Allocated memory was 1.0 GB in the beginning and 3.6 GB in the end (delta: 2.6 GB). Free memory was 956.6 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-11-18 11:24:39,443 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:24:39,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.83 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 924.3 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:24:39,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 921.7 MB in the beginning and 1.1 GB in the end (delta: -210.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:24:39,444 INFO L168 Benchmark]: Boogie Preprocessor took 50.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:24:39,444 INFO L168 Benchmark]: RCFGBuilder took 816.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 100.6 MB). Peak memory consumption was 100.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:24:39,444 INFO L168 Benchmark]: TraceAbstraction took 45036.69 ms. Allocated memory was 1.2 GB in the beginning and 3.6 GB in the end (delta: 2.4 GB). Free memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-11-18 11:24:39,444 INFO L168 Benchmark]: Witness Printer took 105.32 ms. Allocated memory is still 3.6 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:24:39,445 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 352.83 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 924.3 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 921.7 MB in the beginning and 1.1 GB in the end (delta: -210.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 816.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 100.6 MB). Peak memory consumption was 100.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 45036.69 ms. Allocated memory was 1.2 GB in the beginning and 3.6 GB in the end (delta: 2.4 GB). Free memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. * Witness Printer took 105.32 ms. Allocated memory is still 3.6 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((((((!(23 == \old(a1)) || !(0 == a12)) || ((a1 <= 206 && 2 == a10) && a19 <= 8)) || !(0 == \old(a10))) || (((a1 <= 206 && !(a19 == 7)) && a10 <= 2) && !(2 == a10))) || 1 == a10) || (a19 <= \old(a19) && 9 <= a19)) || ((a1 <= 23 && a19 <= 8) && a10 <= 2)) || !(9 == \old(a19))) || ((!(a19 == 7) && !(a19 == 8)) && a19 <= 8)) || ((!(a10 == 3) && !(a19 == 7)) && !(a19 == 10))) || !(14 == a4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. SAFE Result, 44.9s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 29.3s AutomataDifference, 0.0s DeadEndRemovalTime, 2.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 924 SDtfs, 8474 SDslu, 1421 SDs, 0 SdLazy, 14949 SolverSat, 2799 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 21.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 2637 GetRequests, 2491 SyntacticMatches, 15 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3826occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.6s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9971990695871293 AbsIntWeakeningRatio, 0.12935323383084577 AbsIntAvgWeakeningVarsNumRemoved, 15.323383084577115 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 1285 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 273 PreInvPairs, 459 NumberOfFragments, 388 HoareAnnotationTreeSize, 273 FomulaSimplifications, 61871 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 17612 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 3610 NumberOfCodeBlocks, 3610 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 4720 ConstructedInterpolants, 126 QuantifiedInterpolants, 7710396 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1936 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 19 InterpolantComputations, 6 PerfectInterpolantSequences, 3752/4486 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...