./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label34_true-unreach-call_false-termination.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_e150be4e-7277-4027-bc42-dc40a7bb4b74/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label34_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/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 f01979d5da4d022026be8efd02bfc41090b6cbce ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:49:50,913 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:49:50,914 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:49:50,922 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:49:50,922 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:49:50,922 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:49:50,923 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:49:50,924 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:49:50,925 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:49:50,926 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:49:50,926 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:49:50,927 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:49:50,927 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:49:50,928 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:49:50,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:49:50,929 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:49:50,930 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:49:50,932 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:49:50,933 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:49:50,934 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:49:50,935 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:49:50,935 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:49:50,937 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:49:50,937 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:49:50,937 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:49:50,939 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:49:50,939 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:49:50,940 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:49:50,941 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:49:50,941 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:49:50,941 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:49:50,942 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:49:50,942 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:49:50,942 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:49:50,943 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:49:50,943 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:49:50,944 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:49:50,953 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:49:50,954 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:49:50,954 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:49:50,954 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:49:50,954 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:49:50,955 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:49:50,955 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:49:50,955 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:49:50,955 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:49:50,955 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:49:50,955 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:49:50,955 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:49:50,956 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:49:50,956 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:49:50,956 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:49:50,956 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:49:50,957 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:49:50,957 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:49:50,957 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:49:50,957 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:49:50,957 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:49:50,957 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:49:50,957 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:49:50,957 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:49:50,958 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:49:50,960 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:49:50,960 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:49:50,960 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:49:50,960 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:49:50,960 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:49:50,961 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:49:50,961 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:49:50,961 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:49:50,961 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:49:50,961 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:49:50,961 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:49:50,961 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:49:50,962 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_e150be4e-7277-4027-bc42-dc40a7bb4b74/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 -> f01979d5da4d022026be8efd02bfc41090b6cbce [2018-11-18 13:49:50,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:49:50,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:49:50,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:49:50,997 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:49:50,997 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:49:50,998 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label34_true-unreach-call_false-termination.c [2018-11-18 13:49:51,039 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/bin-2019/utaipan/data/0aa1a73b8/ae105992fe6f486cbc5c841f68e70d38/FLAG0ff2e4b8c [2018-11-18 13:49:51,495 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:49:51,495 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/sv-benchmarks/c/eca-rers2012/Problem01_label34_true-unreach-call_false-termination.c [2018-11-18 13:49:51,504 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/bin-2019/utaipan/data/0aa1a73b8/ae105992fe6f486cbc5c841f68e70d38/FLAG0ff2e4b8c [2018-11-18 13:49:51,517 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/bin-2019/utaipan/data/0aa1a73b8/ae105992fe6f486cbc5c841f68e70d38 [2018-11-18 13:49:51,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:49:51,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:49:51,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:49:51,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:49:51,524 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:49:51,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:49:51" (1/1) ... [2018-11-18 13:49:51,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411459c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:51, skipping insertion in model container [2018-11-18 13:49:51,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:49:51" (1/1) ... [2018-11-18 13:49:51,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:49:51,569 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:49:51,792 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:49:51,796 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:49:51,866 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:49:51,879 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:49:51,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:51 WrapperNode [2018-11-18 13:49:51,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:49:51,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:49:51,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:49:51,881 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:49:51,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:51" (1/1) ... [2018-11-18 13:49:51,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:51" (1/1) ... [2018-11-18 13:49:51,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:49:51,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:49:51,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:49:51,957 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:49:51,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:51" (1/1) ... [2018-11-18 13:49:51,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:51" (1/1) ... [2018-11-18 13:49:51,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:51" (1/1) ... [2018-11-18 13:49:51,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:51" (1/1) ... [2018-11-18 13:49:51,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:51" (1/1) ... [2018-11-18 13:49:51,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:51" (1/1) ... [2018-11-18 13:49:52,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:51" (1/1) ... [2018-11-18 13:49:52,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:49:52,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:49:52,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:49:52,009 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:49:52,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/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 13:49:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 13:49:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:49:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:49:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 13:49:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 13:49:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:49:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:49:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:49:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:49:52,789 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:49:52,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:49:52 BoogieIcfgContainer [2018-11-18 13:49:52,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:49:52,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:49:52,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:49:52,792 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:49:52,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:49:51" (1/3) ... [2018-11-18 13:49:52,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7444ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:49:52, skipping insertion in model container [2018-11-18 13:49:52,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:51" (2/3) ... [2018-11-18 13:49:52,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7444ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:49:52, skipping insertion in model container [2018-11-18 13:49:52,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:49:52" (3/3) ... [2018-11-18 13:49:52,795 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label34_true-unreach-call_false-termination.c [2018-11-18 13:49:52,801 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:49:52,806 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:49:52,815 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:49:52,838 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:49:52,838 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:49:52,838 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:49:52,839 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:49:52,839 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:49:52,839 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:49:52,839 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:49:52,839 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:49:52,855 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-11-18 13:49:52,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-18 13:49:52,863 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:49:52,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:52,865 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:49:52,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:49:52,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1144269880, now seen corresponding path program 1 times [2018-11-18 13:49:52,870 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:49:52,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:52,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:49:52,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:52,901 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:49:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:49:53,179 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 13:49:53,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:49:53,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:49:53,181 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:49:53,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:49:53,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:49:53,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:49:53,197 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-11-18 13:49:53,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:49:53,704 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-11-18 13:49:53,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:49:53,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2018-11-18 13:49:53,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:49:53,716 INFO L225 Difference]: With dead ends: 550 [2018-11-18 13:49:53,716 INFO L226 Difference]: Without dead ends: 340 [2018-11-18 13:49:53,720 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 13:49:53,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-11-18 13:49:53,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-11-18 13:49:53,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-11-18 13:49:53,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 569 transitions. [2018-11-18 13:49:53,766 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 569 transitions. Word has length 112 [2018-11-18 13:49:53,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:49:53,767 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 569 transitions. [2018-11-18 13:49:53,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:49:53,767 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 569 transitions. [2018-11-18 13:49:53,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-11-18 13:49:53,771 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:49:53,771 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:49:53,774 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:49:53,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:49:53,774 INFO L82 PathProgramCache]: Analyzing trace with hash -255516033, now seen corresponding path program 1 times [2018-11-18 13:49:53,775 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:49:53,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:53,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:49:53,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:53,776 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:49:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:49:53,845 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:49:53,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:49:53,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:49:53,845 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:49:53,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:49:53,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:49:53,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:49:53,847 INFO L87 Difference]: Start difference. First operand 340 states and 569 transitions. Second operand 5 states. [2018-11-18 13:49:54,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:49:54,422 INFO L93 Difference]: Finished difference Result 1079 states and 1888 transitions. [2018-11-18 13:49:54,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:49:54,423 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2018-11-18 13:49:54,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:49:54,429 INFO L225 Difference]: With dead ends: 1079 [2018-11-18 13:49:54,429 INFO L226 Difference]: Without dead ends: 745 [2018-11-18 13:49:54,431 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 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 13:49:54,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2018-11-18 13:49:54,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 733. [2018-11-18 13:49:54,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-11-18 13:49:54,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1163 transitions. [2018-11-18 13:49:54,460 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1163 transitions. Word has length 122 [2018-11-18 13:49:54,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:49:54,460 INFO L480 AbstractCegarLoop]: Abstraction has 733 states and 1163 transitions. [2018-11-18 13:49:54,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:49:54,460 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1163 transitions. [2018-11-18 13:49:54,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-18 13:49:54,463 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:49:54,464 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:54,464 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:49:54,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:49:54,464 INFO L82 PathProgramCache]: Analyzing trace with hash -289707029, now seen corresponding path program 1 times [2018-11-18 13:49:54,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:49:54,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:54,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:49:54,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:54,465 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:49:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:49:54,561 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:49:54,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:49:54,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:49:54,561 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:49:54,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:49:54,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:49:54,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:49:54,562 INFO L87 Difference]: Start difference. First operand 733 states and 1163 transitions. Second operand 3 states. [2018-11-18 13:49:54,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:49:54,916 INFO L93 Difference]: Finished difference Result 1919 states and 3096 transitions. [2018-11-18 13:49:54,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:49:54,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2018-11-18 13:49:54,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:49:54,920 INFO L225 Difference]: With dead ends: 1919 [2018-11-18 13:49:54,921 INFO L226 Difference]: Without dead ends: 1192 [2018-11-18 13:49:54,923 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 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 13:49:54,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2018-11-18 13:49:54,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1192. [2018-11-18 13:49:54,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2018-11-18 13:49:54,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1735 transitions. [2018-11-18 13:49:54,949 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1735 transitions. Word has length 132 [2018-11-18 13:49:54,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:49:54,949 INFO L480 AbstractCegarLoop]: Abstraction has 1192 states and 1735 transitions. [2018-11-18 13:49:54,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:49:54,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1735 transitions. [2018-11-18 13:49:54,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-18 13:49:54,952 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:49:54,952 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:49:54,952 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:49:54,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:49:54,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1523382030, now seen corresponding path program 1 times [2018-11-18 13:49:54,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:49:54,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:54,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:49:54,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:54,954 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:49:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:49:55,029 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:49:55,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:49:55,030 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:49:55,030 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-11-18 13:49:55,032 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [533], [535], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 13:49:55,065 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:49:55,065 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:49:55,524 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:49:55,525 INFO L272 AbstractInterpreter]: Visited 116 different actions 225 times. Merged at 4 different actions 4 times. Never widened. Performed 3136 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3136 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 13:49:55,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:49:55,538 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:49:55,799 INFO L227 lantSequenceWeakener]: Weakened 131 states. On average, predicates are now at 81.83% of their original sizes. [2018-11-18 13:49:55,800 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:49:55,876 INFO L415 sIntCurrentIteration]: We unified 133 AI predicates to 133 [2018-11-18 13:49:55,876 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:49:55,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:49:55,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 13:49:55,877 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:49:55,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:49:55,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:49:55,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:49:55,879 INFO L87 Difference]: Start difference. First operand 1192 states and 1735 transitions. Second operand 10 states. [2018-11-18 13:49:59,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:49:59,820 INFO L93 Difference]: Finished difference Result 3717 states and 5365 transitions. [2018-11-18 13:49:59,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 13:49:59,820 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2018-11-18 13:49:59,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:49:59,826 INFO L225 Difference]: With dead ends: 3717 [2018-11-18 13:49:59,826 INFO L226 Difference]: Without dead ends: 2531 [2018-11-18 13:49:59,829 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 143 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-11-18 13:49:59,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2531 states. [2018-11-18 13:49:59,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2531 to 2500. [2018-11-18 13:49:59,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2500 states. [2018-11-18 13:49:59,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2500 states to 2500 states and 3214 transitions. [2018-11-18 13:49:59,869 INFO L78 Accepts]: Start accepts. Automaton has 2500 states and 3214 transitions. Word has length 134 [2018-11-18 13:49:59,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:49:59,870 INFO L480 AbstractCegarLoop]: Abstraction has 2500 states and 3214 transitions. [2018-11-18 13:49:59,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:49:59,870 INFO L276 IsEmpty]: Start isEmpty. Operand 2500 states and 3214 transitions. [2018-11-18 13:49:59,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-18 13:49:59,873 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:49:59,873 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2018-11-18 13:49:59,874 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:49:59,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:49:59,874 INFO L82 PathProgramCache]: Analyzing trace with hash -521176307, now seen corresponding path program 1 times [2018-11-18 13:49:59,874 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:49:59,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:59,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:49:59,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:59,875 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:49:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:49:59,973 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 38 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 13:49:59,973 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:49:59,973 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:49:59,974 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-11-18 13:49:59,974 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [533], [535], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 13:49:59,978 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:49:59,978 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:00,098 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:50:00,098 INFO L272 AbstractInterpreter]: Visited 117 different actions 228 times. Merged at 5 different actions 5 times. Never widened. Performed 3016 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3016 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 13:50:00,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:00,099 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:50:00,263 INFO L227 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 81.79% of their original sizes. [2018-11-18 13:50:00,263 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:50:00,324 INFO L415 sIntCurrentIteration]: We unified 146 AI predicates to 146 [2018-11-18 13:50:00,324 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:50:00,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:50:00,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 13:50:00,324 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:00,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:50:00,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:50:00,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:50:00,325 INFO L87 Difference]: Start difference. First operand 2500 states and 3214 transitions. Second operand 10 states. [2018-11-18 13:50:02,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:02,955 INFO L93 Difference]: Finished difference Result 4999 states and 6497 transitions. [2018-11-18 13:50:02,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 13:50:02,956 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 147 [2018-11-18 13:50:02,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:02,962 INFO L225 Difference]: With dead ends: 4999 [2018-11-18 13:50:02,962 INFO L226 Difference]: Without dead ends: 2641 [2018-11-18 13:50:02,967 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 154 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-18 13:50:02,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2018-11-18 13:50:03,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 2638. [2018-11-18 13:50:03,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2638 states. [2018-11-18 13:50:03,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 3368 transitions. [2018-11-18 13:50:03,023 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 3368 transitions. Word has length 147 [2018-11-18 13:50:03,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:03,023 INFO L480 AbstractCegarLoop]: Abstraction has 2638 states and 3368 transitions. [2018-11-18 13:50:03,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:50:03,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 3368 transitions. [2018-11-18 13:50:03,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-11-18 13:50:03,029 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:03,029 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:50:03,030 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:03,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:03,030 INFO L82 PathProgramCache]: Analyzing trace with hash 644918266, now seen corresponding path program 1 times [2018-11-18 13:50:03,030 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:03,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:03,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:03,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:03,031 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 52 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-18 13:50:03,126 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:03,126 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:03,126 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 160 with the following transitions: [2018-11-18 13:50:03,127 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [533], [535], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 13:50:03,131 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:03,131 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:03,489 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:50:03,489 INFO L272 AbstractInterpreter]: Visited 118 different actions 351 times. Merged at 7 different actions 19 times. Never widened. Performed 4817 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4817 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 42 variables. [2018-11-18 13:50:03,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:03,494 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:50:03,612 INFO L227 lantSequenceWeakener]: Weakened 156 states. On average, predicates are now at 83.57% of their original sizes. [2018-11-18 13:50:03,612 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:50:03,647 INFO L415 sIntCurrentIteration]: We unified 158 AI predicates to 158 [2018-11-18 13:50:03,647 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:50:03,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:50:03,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2018-11-18 13:50:03,647 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:03,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 13:50:03,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 13:50:03,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:50:03,648 INFO L87 Difference]: Start difference. First operand 2638 states and 3368 transitions. Second operand 9 states. [2018-11-18 13:50:05,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:05,670 INFO L93 Difference]: Finished difference Result 5843 states and 7691 transitions. [2018-11-18 13:50:05,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 13:50:05,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 159 [2018-11-18 13:50:05,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:05,682 INFO L225 Difference]: With dead ends: 5843 [2018-11-18 13:50:05,682 INFO L226 Difference]: Without dead ends: 3485 [2018-11-18 13:50:05,688 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-18 13:50:05,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3485 states. [2018-11-18 13:50:05,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3485 to 3440. [2018-11-18 13:50:05,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3440 states. [2018-11-18 13:50:05,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 4362 transitions. [2018-11-18 13:50:05,754 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 4362 transitions. Word has length 159 [2018-11-18 13:50:05,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:05,754 INFO L480 AbstractCegarLoop]: Abstraction has 3440 states and 4362 transitions. [2018-11-18 13:50:05,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 13:50:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 4362 transitions. [2018-11-18 13:50:05,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-11-18 13:50:05,760 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:05,760 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:50:05,760 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:05,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:05,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1387665827, now seen corresponding path program 1 times [2018-11-18 13:50:05,761 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:05,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:05,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:05,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:05,762 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:05,818 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 74 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-18 13:50:05,819 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:05,819 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:05,819 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-11-18 13:50:05,819 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [533], [535], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 13:50:05,822 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:05,822 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:06,281 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:50:06,281 INFO L272 AbstractInterpreter]: Visited 120 different actions 594 times. Merged at 10 different actions 41 times. Never widened. Performed 8789 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8789 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 12 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-18 13:50:06,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:06,287 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:50:06,287 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:06,287 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/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 13:50:06,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:06,295 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:50:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:06,379 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:50:06,447 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 80 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-18 13:50:06,447 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:50:06,534 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 74 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-18 13:50:06,551 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:50:06,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-11-18 13:50:06,551 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:50:06,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 13:50:06,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 13:50:06,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:50:06,552 INFO L87 Difference]: Start difference. First operand 3440 states and 4362 transitions. Second operand 8 states. [2018-11-18 13:50:08,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:08,300 INFO L93 Difference]: Finished difference Result 12825 states and 17533 transitions. [2018-11-18 13:50:08,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 13:50:08,300 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 179 [2018-11-18 13:50:08,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:08,319 INFO L225 Difference]: With dead ends: 12825 [2018-11-18 13:50:08,319 INFO L226 Difference]: Without dead ends: 5603 [2018-11-18 13:50:08,346 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=215, Invalid=777, Unknown=0, NotChecked=0, Total=992 [2018-11-18 13:50:08,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5603 states. [2018-11-18 13:50:08,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5603 to 5512. [2018-11-18 13:50:08,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5512 states. [2018-11-18 13:50:08,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5512 states to 5512 states and 6499 transitions. [2018-11-18 13:50:08,526 INFO L78 Accepts]: Start accepts. Automaton has 5512 states and 6499 transitions. Word has length 179 [2018-11-18 13:50:08,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:08,526 INFO L480 AbstractCegarLoop]: Abstraction has 5512 states and 6499 transitions. [2018-11-18 13:50:08,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 13:50:08,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5512 states and 6499 transitions. [2018-11-18 13:50:08,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-11-18 13:50:08,533 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:08,534 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:08,534 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:08,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:08,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1042057633, now seen corresponding path program 1 times [2018-11-18 13:50:08,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:08,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:08,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:08,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:08,535 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 78 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 13:50:08,700 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:08,700 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:08,700 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 181 with the following transitions: [2018-11-18 13:50:08,700 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [533], [535], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 13:50:08,703 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:08,704 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:08,834 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:50:08,834 INFO L272 AbstractInterpreter]: Visited 117 different actions 228 times. Merged at 5 different actions 5 times. Never widened. Performed 3115 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3115 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 13:50:08,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:08,842 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:50:08,960 INFO L227 lantSequenceWeakener]: Weakened 177 states. On average, predicates are now at 81.75% of their original sizes. [2018-11-18 13:50:08,960 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:50:09,018 INFO L415 sIntCurrentIteration]: We unified 179 AI predicates to 179 [2018-11-18 13:50:09,018 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:50:09,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:50:09,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 13:50:09,019 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:09,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:50:09,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:50:09,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:50:09,020 INFO L87 Difference]: Start difference. First operand 5512 states and 6499 transitions. Second operand 10 states. [2018-11-18 13:50:10,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:10,714 INFO L93 Difference]: Finished difference Result 11205 states and 13218 transitions. [2018-11-18 13:50:10,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 13:50:10,715 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 180 [2018-11-18 13:50:10,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:10,730 INFO L225 Difference]: With dead ends: 11205 [2018-11-18 13:50:10,730 INFO L226 Difference]: Without dead ends: 5973 [2018-11-18 13:50:10,738 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 188 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-18 13:50:10,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5973 states. [2018-11-18 13:50:10,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5973 to 5970. [2018-11-18 13:50:10,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5970 states. [2018-11-18 13:50:10,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5970 states to 5970 states and 6988 transitions. [2018-11-18 13:50:10,829 INFO L78 Accepts]: Start accepts. Automaton has 5970 states and 6988 transitions. Word has length 180 [2018-11-18 13:50:10,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:10,830 INFO L480 AbstractCegarLoop]: Abstraction has 5970 states and 6988 transitions. [2018-11-18 13:50:10,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:50:10,830 INFO L276 IsEmpty]: Start isEmpty. Operand 5970 states and 6988 transitions. [2018-11-18 13:50:10,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-11-18 13:50:10,838 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:10,839 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:10,839 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:10,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:10,839 INFO L82 PathProgramCache]: Analyzing trace with hash 660025092, now seen corresponding path program 1 times [2018-11-18 13:50:10,839 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:10,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:10,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:10,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:10,840 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:10,966 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 76 proven. 30 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-18 13:50:10,966 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:10,966 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:10,966 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-11-18 13:50:10,967 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [533], [535], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 13:50:10,969 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:10,969 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:11,211 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:50:11,211 INFO L272 AbstractInterpreter]: Visited 119 different actions 472 times. Merged at 9 different actions 32 times. Never widened. Performed 6772 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6772 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 2 different actions. Largest state had 42 variables. [2018-11-18 13:50:11,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:11,214 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:50:11,214 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:11,214 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/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 13:50:11,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:11,220 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:50:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:11,272 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:50:11,313 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 13:50:11,313 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:50:11,366 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 82 proven. 22 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-18 13:50:11,382 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:50:11,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-11-18 13:50:11,383 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:50:11,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 13:50:11,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 13:50:11,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:50:11,383 INFO L87 Difference]: Start difference. First operand 5970 states and 6988 transitions. Second operand 11 states. [2018-11-18 13:50:12,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:12,189 INFO L93 Difference]: Finished difference Result 12666 states and 15054 transitions. [2018-11-18 13:50:12,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 13:50:12,190 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 189 [2018-11-18 13:50:12,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:12,208 INFO L225 Difference]: With dead ends: 12666 [2018-11-18 13:50:12,208 INFO L226 Difference]: Without dead ends: 7296 [2018-11-18 13:50:12,218 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 379 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-11-18 13:50:12,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7296 states. [2018-11-18 13:50:12,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7296 to 7139. [2018-11-18 13:50:12,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7139 states. [2018-11-18 13:50:12,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7139 states to 7139 states and 8276 transitions. [2018-11-18 13:50:12,339 INFO L78 Accepts]: Start accepts. Automaton has 7139 states and 8276 transitions. Word has length 189 [2018-11-18 13:50:12,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:12,339 INFO L480 AbstractCegarLoop]: Abstraction has 7139 states and 8276 transitions. [2018-11-18 13:50:12,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 13:50:12,339 INFO L276 IsEmpty]: Start isEmpty. Operand 7139 states and 8276 transitions. [2018-11-18 13:50:12,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-11-18 13:50:12,349 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:12,349 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:12,349 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:12,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:12,349 INFO L82 PathProgramCache]: Analyzing trace with hash -2084128074, now seen corresponding path program 1 times [2018-11-18 13:50:12,349 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:12,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:12,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:12,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:12,350 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:12,485 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 98 proven. 25 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 13:50:12,485 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:12,485 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:12,485 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2018-11-18 13:50:12,486 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [173], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [533], [535], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 13:50:12,488 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:12,488 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:12,692 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:50:12,692 INFO L272 AbstractInterpreter]: Visited 118 different actions 346 times. Merged at 7 different actions 14 times. Never widened. Performed 4622 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4622 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 42 variables. [2018-11-18 13:50:12,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:12,698 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:50:12,883 INFO L227 lantSequenceWeakener]: Weakened 195 states. On average, predicates are now at 83.38% of their original sizes. [2018-11-18 13:50:12,884 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:50:12,924 INFO L415 sIntCurrentIteration]: We unified 197 AI predicates to 197 [2018-11-18 13:50:12,924 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:50:12,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:50:12,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 13:50:12,924 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:12,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:50:12,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:50:12,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:50:12,925 INFO L87 Difference]: Start difference. First operand 7139 states and 8276 transitions. Second operand 10 states. [2018-11-18 13:50:14,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:14,715 INFO L93 Difference]: Finished difference Result 13963 states and 16267 transitions. [2018-11-18 13:50:14,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 13:50:14,715 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 198 [2018-11-18 13:50:14,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:14,730 INFO L225 Difference]: With dead ends: 13963 [2018-11-18 13:50:14,730 INFO L226 Difference]: Without dead ends: 7562 [2018-11-18 13:50:14,738 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 205 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-18 13:50:14,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7562 states. [2018-11-18 13:50:14,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7562 to 7555. [2018-11-18 13:50:14,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7555 states. [2018-11-18 13:50:14,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7555 states to 7555 states and 8733 transitions. [2018-11-18 13:50:14,851 INFO L78 Accepts]: Start accepts. Automaton has 7555 states and 8733 transitions. Word has length 198 [2018-11-18 13:50:14,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:14,851 INFO L480 AbstractCegarLoop]: Abstraction has 7555 states and 8733 transitions. [2018-11-18 13:50:14,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:50:14,851 INFO L276 IsEmpty]: Start isEmpty. Operand 7555 states and 8733 transitions. [2018-11-18 13:50:14,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-11-18 13:50:14,862 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:14,862 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:14,862 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:14,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:14,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1822184039, now seen corresponding path program 1 times [2018-11-18 13:50:14,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:14,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:14,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:14,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:14,864 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:14,966 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 98 proven. 51 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-11-18 13:50:14,966 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:14,966 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:14,966 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-11-18 13:50:14,966 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [533], [535], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 13:50:14,968 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:14,968 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:15,243 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:50:15,244 INFO L272 AbstractInterpreter]: Visited 120 different actions 480 times. Merged at 10 different actions 36 times. Never widened. Performed 6917 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6917 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 10 fixpoints after 4 different actions. Largest state had 42 variables. [2018-11-18 13:50:15,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:15,246 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:50:15,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:15,246 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/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 13:50:15,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:15,259 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:50:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:15,322 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:50:15,433 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-18 13:50:15,434 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:50:15,483 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 104 proven. 20 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-18 13:50:15,499 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:50:15,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-11-18 13:50:15,499 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:50:15,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 13:50:15,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 13:50:15,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-11-18 13:50:15,500 INFO L87 Difference]: Start difference. First operand 7555 states and 8733 transitions. Second operand 12 states. [2018-11-18 13:50:17,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:17,369 INFO L93 Difference]: Finished difference Result 18363 states and 22223 transitions. [2018-11-18 13:50:17,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-11-18 13:50:17,370 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 209 [2018-11-18 13:50:17,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:17,395 INFO L225 Difference]: With dead ends: 18363 [2018-11-18 13:50:17,395 INFO L226 Difference]: Without dead ends: 10734 [2018-11-18 13:50:17,409 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 448 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=468, Invalid=1788, Unknown=0, NotChecked=0, Total=2256 [2018-11-18 13:50:17,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10734 states. [2018-11-18 13:50:17,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10734 to 10466. [2018-11-18 13:50:17,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10466 states. [2018-11-18 13:50:17,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10466 states to 10466 states and 12353 transitions. [2018-11-18 13:50:17,573 INFO L78 Accepts]: Start accepts. Automaton has 10466 states and 12353 transitions. Word has length 209 [2018-11-18 13:50:17,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:17,573 INFO L480 AbstractCegarLoop]: Abstraction has 10466 states and 12353 transitions. [2018-11-18 13:50:17,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 13:50:17,573 INFO L276 IsEmpty]: Start isEmpty. Operand 10466 states and 12353 transitions. [2018-11-18 13:50:17,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-11-18 13:50:17,585 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:17,586 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 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] [2018-11-18 13:50:17,587 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:17,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:17,587 INFO L82 PathProgramCache]: Analyzing trace with hash -637261400, now seen corresponding path program 1 times [2018-11-18 13:50:17,587 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:17,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:17,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:17,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:17,588 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:17,725 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 153 proven. 25 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 13:50:17,726 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:17,726 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:17,726 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-11-18 13:50:17,727 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [105], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [533], [535], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 13:50:17,728 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:17,729 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:18,111 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:50:18,111 INFO L272 AbstractInterpreter]: Visited 119 different actions 475 times. Merged at 9 different actions 35 times. Widened at 1 different actions 1 times. Performed 6943 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6943 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-18 13:50:18,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:18,118 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:50:18,118 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:18,118 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/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 13:50:18,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:18,125 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:50:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:18,178 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:50:18,219 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-11-18 13:50:18,219 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:50:18,305 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-11-18 13:50:18,329 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:50:18,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-11-18 13:50:18,329 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:18,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:50:18,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:50:18,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:50:18,330 INFO L87 Difference]: Start difference. First operand 10466 states and 12353 transitions. Second operand 3 states. [2018-11-18 13:50:18,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:18,656 INFO L93 Difference]: Finished difference Result 16334 states and 19372 transitions. [2018-11-18 13:50:18,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:50:18,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2018-11-18 13:50:18,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:18,656 INFO L225 Difference]: With dead ends: 16334 [2018-11-18 13:50:18,656 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:50:18,673 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 426 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:50:18,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:50:18,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:50:18,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:50:18,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:50:18,674 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 214 [2018-11-18 13:50:18,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:18,674 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:50:18,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:50:18,675 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:50:18,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:50:18,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:50:18,904 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,911 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,939 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,970 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,972 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,974 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,976 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,978 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,987 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,992 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,994 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:18,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,011 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,032 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,042 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,066 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,071 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,079 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,105 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 146 [2018-11-18 13:50:19,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,138 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,138 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,142 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,143 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,152 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,155 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,155 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,182 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:19,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:21,156 WARN L180 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 307 DAG size of output: 126 [2018-11-18 13:50:21,597 WARN L180 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 73 [2018-11-18 13:50:21,845 WARN L180 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2018-11-18 13:50:21,847 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:50:21,847 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= |old(~a20~0)| ~a20~0) (= ~a17~0 |old(~a17~0)|)) [2018-11-18 13:50:21,847 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:50:21,847 INFO L425 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-11-18 13:50:21,847 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-11-18 13:50:21,847 INFO L425 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,847 INFO L425 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,847 INFO L425 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,847 INFO L425 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,847 INFO L425 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,847 INFO L425 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-11-18 13:50:21,848 INFO L425 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-11-18 13:50:21,849 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-11-18 13:50:21,850 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,851 INFO L425 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,852 INFO L425 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,853 INFO L425 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,854 INFO L425 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-11-18 13:50:21,854 INFO L425 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-11-18 13:50:21,854 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-11-18 13:50:21,854 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-11-18 13:50:21,854 INFO L425 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-11-18 13:50:21,854 INFO L425 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-11-18 13:50:21,854 INFO L425 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-11-18 13:50:21,854 INFO L425 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-11-18 13:50:21,854 INFO L425 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-11-18 13:50:21,854 INFO L425 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-11-18 13:50:21,855 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse32 (= ~a16~0 6))) (let ((.cse9 (= ~a7~0 |old(~a7~0)|)) (.cse35 (not (= 0 |old(~a17~0)|))) (.cse33 (not (= 0 |old(~a7~0)|))) (.cse5 (not (= 1 |old(~a21~0)|))) (.cse34 (not (= 15 |old(~a8~0)|))) (.cse14 (not (= 8 ~a12~0))) (.cse19 (not (= 1 |old(~a17~0)|))) (.cse7 (= |old(~a20~0)| ~a20~0)) (.cse11 (= ~a17~0 |old(~a17~0)|)) (.cse25 (= 1 ~a7~0)) (.cse10 (= |old(~a8~0)| ~a8~0)) (.cse4 (not .cse32))) (let ((.cse28 (< |old(~a8~0)| 15)) (.cse29 (= 1 ~a20~0)) (.cse27 (and .cse25 .cse10 .cse4)) (.cse23 (= ~a16~0 5)) (.cse22 (not (= |old(~a20~0)| 1))) (.cse21 (= ~a17~0 1)) (.cse20 (< 13 |old(~a8~0)|)) (.cse26 (and .cse25 .cse10 .cse7 .cse11 .cse4)) (.cse24 (let ((.cse36 (not (= 5 |old(~a16~0)|)))) (and (or .cse33 .cse5 .cse34 .cse35 .cse36 .cse14) (or .cse33 .cse5 .cse34 .cse36 .cse14 .cse19)))) (.cse6 (not (= ~a16~0 0))) (.cse8 (= ~a21~0 1)) (.cse12 (= 13 |old(~a8~0)|)) (.cse31 (and .cse9 .cse10 .cse7 .cse11)) (.cse18 (< 0 |old(~a20~0)|)) (.cse0 (= 6 |old(~a16~0)|)) (.cse15 (< 0 |old(~a7~0)|)) (.cse3 (< 0 |old(~a17~0)|)) (.cse1 (not (= 1 |old(~a20~0)|))) (.cse30 (= ~a20~0 1)) (.cse13 (= 0 |old(~a16~0)|)) (.cse2 (not (= 1 |old(~a7~0)|))) (.cse16 (= |calculate_output_#in~input| 0)) (.cse17 (= 0 |old(~a8~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 (and .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19) (or .cse0 .cse5 .cse20 (and .cse6 .cse21 .cse8) .cse13 .cse14 .cse16 .cse17 .cse19) (or .cse22 .cse23 .cse16 .cse24) (or .cse0 .cse15 .cse3 .cse4 .cse18) (or (and .cse25 .cse10 .cse7 .cse11) .cse22 .cse2 .cse3) (or .cse0 .cse26 .cse2 .cse3 .cse18) (or .cse0 .cse27 .cse2 .cse28) (or .cse0 (and .cse7 .cse11) .cse15 .cse3 .cse18) (or .cse0 (= |old(~a7~0)| 1) .cse20 (and .cse9 .cse10 .cse4)) (or .cse0 .cse5 .cse13 .cse14 .cse4 .cse15 .cse16 .cse18 .cse19) (or .cse0 .cse26 .cse20 .cse1 .cse2) (or .cse1 (and .cse25 .cse10 .cse29) .cse2 .cse28) (or .cse29 .cse0 .cse20 .cse1) (or .cse0 .cse5 .cse27 .cse13 .cse14 .cse2 .cse16 .cse17 .cse19) (or .cse16 .cse23 .cse24 .cse18) (or .cse5 (and .cse6 .cse25 .cse10 .cse21 .cse8) .cse12 .cse13 .cse14 .cse2 .cse16 .cse17 .cse19) (or .cse0 .cse5 .cse1 .cse13 .cse14 .cse15 .cse16 (and .cse6 .cse8 .cse9 .cse10 .cse11 .cse4 .cse30) .cse17 .cse19) (or .cse0 .cse4 .cse22 .cse15 .cse3) (or .cse1 .cse31 .cse12 .cse15 .cse3) (or .cse5 .cse20 (and .cse9 .cse6 .cse10 .cse21 .cse8 .cse30) .cse1 .cse13 .cse14 .cse16 .cse17 .cse19) (or (or .cse5 .cse1 (not (= 4 |old(~a16~0)|)) (not .cse12)) (= ~a16~0 4) .cse14 .cse2 .cse16 .cse19) (or .cse0 .cse20 .cse26 .cse2 .cse18) (or (and .cse8 .cse32) .cse16 (or (not .cse0) .cse33 .cse5 .cse1 .cse34 .cse35 .cse14)) (or .cse8 .cse16 .cse24 .cse18) (or .cse0 .cse33 .cse5 .cse14 .cse3 .cse16 (and .cse6 .cse8) .cse1 .cse34 .cse13) (or .cse12 .cse15 .cse3 .cse31 .cse18) (or .cse0 .cse1 .cse11 .cse15 .cse3) (or .cse5 .cse1 .cse30 .cse13 .cse14 .cse2 .cse16 .cse17 .cse19))))) [2018-11-18 13:50:21,855 INFO L425 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-11-18 13:50:21,855 INFO L425 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,855 INFO L425 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,855 INFO L425 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,855 INFO L425 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,855 INFO L425 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-11-18 13:50:21,855 INFO L425 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,855 INFO L425 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,855 INFO L425 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-11-18 13:50:21,855 INFO L425 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-11-18 13:50:21,855 INFO L425 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,856 INFO L425 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 491) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-11-18 13:50:21,857 INFO L425 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= ~a17~0 1) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (= ~a16~0 5)) [2018-11-18 13:50:21,858 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:50:21,858 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 8 ~a12~0)) (and (= ~a21~0 1) (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 1) (= ~a16~0 5)) (not (= 1 |old(~a17~0)|))) [2018-11-18 13:50:21,858 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-11-18 13:50:21,859 INFO L421 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse14 (<= ~a8~0 |old(~a8~0)|)) (.cse15 (<= 15 ~a8~0)) (.cse13 (= 1 ~a20~0)) (.cse2 (<= ~a17~0 0)) (.cse11 (not (= ~a8~0 13))) (.cse9 (<= ~a7~0 0)) (.cse4 (not (= ~a16~0 0))) (.cse5 (not (= main_~input~0 0))) (.cse6 (not (= ~a8~0 0))) (.cse7 (= ~a17~0 1)) (.cse8 (= ~a21~0 1)) (.cse10 (= ~a20~0 1)) (.cse12 (<= ~a8~0 13)) (.cse0 (= 1 ~a7~0)) (.cse1 (not (= ~a16~0 6))) (.cse3 (<= ~a20~0 0))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2 .cse3) (not (= 8 ~a12~0)) (and .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse1 .cse10) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse4 .cse5 .cse6 .cse7 .cse8 .cse11 .cse3 .cse9) (and .cse12 .cse4 .cse5 .cse6 .cse1 .cse7 .cse8) (and .cse1 .cse2 .cse3 .cse9) (and .cse12 .cse0 .cse13 .cse1) (and .cse14 .cse0 .cse15 .cse1) (not (= 0 |old(~a7~0)|)) (and .cse4 .cse0 .cse5 .cse6 .cse7 .cse8 .cse11) (and .cse14 .cse0 .cse15 .cse13) (and .cse2 .cse11 .cse3 .cse9) (and .cse12 (= ~a7~0 |old(~a7~0)|) .cse1) (and .cse13 .cse1 .cse2 .cse9) (and .cse0 .cse13 .cse2) (and (= |old(~a20~0)| ~a20~0) .cse2 .cse11 .cse9) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (and .cse12 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10) (and .cse12 .cse0 .cse1 .cse3))) [2018-11-18 13:50:21,859 INFO L425 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-11-18 13:50:21,859 INFO L425 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-11-18 13:50:21,859 INFO L425 ceAbstractionStarter]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2018-11-18 13:50:21,859 INFO L421 ceAbstractionStarter]: At program point L583-3(lines 583 593) the Hoare annotation is: (let ((.cse7 (<= ~a8~0 |old(~a8~0)|)) (.cse8 (<= 15 ~a8~0)) (.cse6 (= 1 ~a20~0)) (.cse2 (<= ~a17~0 0)) (.cse4 (<= ~a7~0 0)) (.cse9 (not (= ~a8~0 13))) (.cse10 (not (= ~a16~0 0))) (.cse11 (not (= ~a8~0 0))) (.cse12 (= ~a17~0 1)) (.cse14 (= ~a20~0 1)) (.cse13 (= ~a21~0 1)) (.cse5 (<= ~a8~0 13)) (.cse0 (= 1 ~a7~0)) (.cse1 (not (= ~a16~0 6))) (.cse3 (<= ~a20~0 0))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2 .cse3) (not (= 8 ~a12~0)) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse6 .cse1) (and .cse7 .cse0 .cse8 .cse1) (and .cse7 .cse0 .cse8 .cse6) (and .cse5 (= ~a7~0 |old(~a7~0)|) .cse1) (and .cse6 .cse1 .cse2 .cse4) (and (= |old(~a20~0)| ~a20~0) .cse2 .cse9 .cse4) (and .cse5 .cse10 .cse11 .cse1 .cse12 .cse13) (and (and .cse10 .cse11 .cse1 .cse12 .cse13 .cse14) .cse4) (and .cse10 .cse0 .cse11 .cse12 .cse13 .cse9) (and .cse0 .cse6 .cse2) (not (= 0 |old(~a7~0)|)) (and .cse2 .cse9 .cse3 .cse4) (not (= 1 |old(~a17~0)|)) (and .cse10 .cse11 .cse12 .cse13 .cse3 .cse4 .cse9) (not (= 15 |old(~a8~0)|)) (and .cse5 .cse10 .cse11 .cse12 .cse14 .cse13) (and .cse5 .cse0 .cse1 .cse3))) [2018-11-18 13:50:21,859 INFO L425 ceAbstractionStarter]: For program point L583-4(lines 577 594) no Hoare annotation was computed. [2018-11-18 13:50:21,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:50:21 BoogieIcfgContainer [2018-11-18 13:50:21,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:50:21,869 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:50:21,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:50:21,869 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:50:21,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:49:52" (3/4) ... [2018-11-18 13:50:21,873 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:50:21,882 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:50:21,882 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 13:50:21,882 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:50:21,889 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 13:50:21,889 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:50:21,906 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((!(1 == \old(a21)) || (((1 == a7 && !(a16 == 6)) && a17 <= 0) && a20 <= 0)) || !(8 == a12)) || !(1 == \old(a20))) || !(5 == \old(a16))) || (((!(a16 == 6) && a17 <= 0) && a20 <= 0) && a7 <= 0)) || (((a8 <= 13 && 1 == a7) && 1 == a20) && !(a16 == 6))) || (((a8 <= \old(a8) && 1 == a7) && 15 <= a8) && !(a16 == 6))) || (((a8 <= \old(a8) && 1 == a7) && 15 <= a8) && 1 == a20)) || ((a8 <= 13 && a7 == \old(a7)) && !(a16 == 6))) || (((1 == a20 && !(a16 == 6)) && a17 <= 0) && a7 <= 0)) || (((\old(a20) == a20 && a17 <= 0) && !(a8 == 13)) && a7 <= 0)) || (((((a8 <= 13 && !(a16 == 0)) && !(a8 == 0)) && !(a16 == 6)) && a17 == 1) && a21 == 1)) || ((((((!(a16 == 0) && !(a8 == 0)) && !(a16 == 6)) && a17 == 1) && a21 == 1) && a20 == 1) && a7 <= 0)) || (((((!(a16 == 0) && 1 == a7) && !(a8 == 0)) && a17 == 1) && a21 == 1) && !(a8 == 13))) || ((1 == a7 && 1 == a20) && a17 <= 0)) || !(0 == \old(a7))) || (((a17 <= 0 && !(a8 == 13)) && a20 <= 0) && a7 <= 0)) || !(1 == \old(a17))) || ((((((!(a16 == 0) && !(a8 == 0)) && a17 == 1) && a21 == 1) && a20 <= 0) && a7 <= 0) && !(a8 == 13))) || !(15 == \old(a8))) || (((((a8 <= 13 && !(a16 == 0)) && !(a8 == 0)) && a17 == 1) && a20 == 1) && a21 == 1)) || (((a8 <= 13 && 1 == a7) && !(a16 == 6)) && a20 <= 0) [2018-11-18 13:50:21,961 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e150be4e-7277-4027-bc42-dc40a7bb4b74/bin-2019/utaipan/witness.graphml [2018-11-18 13:50:21,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:50:21,962 INFO L168 Benchmark]: Toolchain (without parser) took 30442.43 ms. Allocated memory was 1.0 GB in the beginning and 2.8 GB in the end (delta: 1.8 GB). Free memory was 955.5 MB in the beginning and 1.5 GB in the end (delta: -592.9 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-11-18 13:50:21,962 INFO L168 Benchmark]: CDTParser took 0.17 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 13:50:21,963 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.09 ms. Allocated memory is still 1.0 GB. Free memory was 955.5 MB in the beginning and 915.2 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-11-18 13:50:21,963 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 915.2 MB in the beginning and 1.1 GB in the end (delta: -213.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:50:21,963 INFO L168 Benchmark]: Boogie Preprocessor took 51.51 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:50:21,963 INFO L168 Benchmark]: RCFGBuilder took 781.57 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 13:50:21,964 INFO L168 Benchmark]: TraceAbstraction took 29078.18 ms. Allocated memory was 1.2 GB in the beginning and 2.8 GB in the end (delta: 1.6 GB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -531.5 MB). Peak memory consumption was 1.7 GB. Max. memory is 11.5 GB. [2018-11-18 13:50:21,964 INFO L168 Benchmark]: Witness Printer took 92.62 ms. Allocated memory is still 2.8 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:50:21,965 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 359.09 ms. Allocated memory is still 1.0 GB. Free memory was 955.5 MB in the beginning and 915.2 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 915.2 MB in the beginning and 1.1 GB in the end (delta: -213.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.51 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 781.57 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 29078.18 ms. Allocated memory was 1.2 GB in the beginning and 2.8 GB in the end (delta: 1.6 GB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -531.5 MB). Peak memory consumption was 1.7 GB. Max. memory is 11.5 GB. * Witness Printer took 92.62 ms. Allocated memory is still 2.8 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 491]: 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: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((((!(1 == \old(a21)) || (((1 == a7 && !(a16 == 6)) && a17 <= 0) && a20 <= 0)) || !(8 == a12)) || !(1 == \old(a20))) || !(5 == \old(a16))) || (((!(a16 == 6) && a17 <= 0) && a20 <= 0) && a7 <= 0)) || (((a8 <= 13 && 1 == a7) && 1 == a20) && !(a16 == 6))) || (((a8 <= \old(a8) && 1 == a7) && 15 <= a8) && !(a16 == 6))) || (((a8 <= \old(a8) && 1 == a7) && 15 <= a8) && 1 == a20)) || ((a8 <= 13 && a7 == \old(a7)) && !(a16 == 6))) || (((1 == a20 && !(a16 == 6)) && a17 <= 0) && a7 <= 0)) || (((\old(a20) == a20 && a17 <= 0) && !(a8 == 13)) && a7 <= 0)) || (((((a8 <= 13 && !(a16 == 0)) && !(a8 == 0)) && !(a16 == 6)) && a17 == 1) && a21 == 1)) || ((((((!(a16 == 0) && !(a8 == 0)) && !(a16 == 6)) && a17 == 1) && a21 == 1) && a20 == 1) && a7 <= 0)) || (((((!(a16 == 0) && 1 == a7) && !(a8 == 0)) && a17 == 1) && a21 == 1) && !(a8 == 13))) || ((1 == a7 && 1 == a20) && a17 <= 0)) || !(0 == \old(a7))) || (((a17 <= 0 && !(a8 == 13)) && a20 <= 0) && a7 <= 0)) || !(1 == \old(a17))) || ((((((!(a16 == 0) && !(a8 == 0)) && a17 == 1) && a21 == 1) && a20 <= 0) && a7 <= 0) && !(a8 == 13))) || !(15 == \old(a8))) || (((((a8 <= 13 && !(a16 == 0)) && !(a8 == 0)) && a17 == 1) && a20 == 1) && a21 == 1)) || (((a8 <= 13 && 1 == a7) && !(a16 == 6)) && a20 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. SAFE Result, 29.0s OverallTime, 12 OverallIterations, 6 TraceHistogramMax, 18.5s AutomataDifference, 0.0s DeadEndRemovalTime, 3.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 1493 SDtfs, 13000 SDslu, 2381 SDs, 0 SdLazy, 14508 SolverSat, 3010 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 2604 GetRequests, 2407 SyntacticMatches, 8 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1075 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10466occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.7s AbstIntTime, 9 AbstIntIterations, 5 AbstIntStrong, 0.9962800323049066 AbsIntWeakeningRatio, 0.25953259532595324 AbsIntAvgWeakeningVarsNumRemoved, 27.215252152521526 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 617 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 444 PreInvPairs, 728 NumberOfFragments, 1711 HoareAnnotationTreeSize, 444 FomulaSimplifications, 21169 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9151 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2766 NumberOfCodeBlocks, 2766 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3537 ConstructedInterpolants, 0 QuantifiedInterpolants, 1235806 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2463 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 2193/2446 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...