./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label24_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_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/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 41d17b9aa5f2178c80003b4f705c8a61e02072b8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 10:52:40,892 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:52:40,893 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:52:40,902 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:52:40,902 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:52:40,902 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:52:40,903 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:52:40,905 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:52:40,907 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:52:40,907 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:52:40,908 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:52:40,908 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:52:40,909 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:52:40,910 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:52:40,911 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:52:40,911 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:52:40,912 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:52:40,914 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:52:40,915 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:52:40,917 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:52:40,917 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:52:40,918 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:52:40,920 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:52:40,920 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:52:40,921 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:52:40,922 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:52:40,922 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:52:40,923 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:52:40,923 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:52:40,924 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:52:40,925 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:52:40,926 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:52:40,926 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:52:40,926 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:52:40,926 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:52:40,927 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:52:40,927 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 10:52:40,942 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:52:40,942 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:52:40,943 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:52:40,943 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:52:40,943 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:52:40,943 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:52:40,943 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:52:40,944 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:52:40,944 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:52:40,944 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:52:40,944 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:52:40,944 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:52:40,944 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:52:40,945 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:52:40,945 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:52:40,945 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:52:40,945 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:52:40,945 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:52:40,946 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:52:40,946 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:52:40,946 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:52:40,946 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:52:40,946 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:52:40,946 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:52:40,946 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:52:40,947 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:52:40,947 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:52:40,947 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:52:40,947 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:52:40,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:52:40,947 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:52:40,947 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:52:40,948 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:52:40,948 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:52:40,948 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:52:40,948 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:52:40,948 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:52:40,948 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_9846cd49-9f97-40b8-acbe-db46137ae27f/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 -> 41d17b9aa5f2178c80003b4f705c8a61e02072b8 [2018-11-18 10:52:40,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:52:40,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:52:40,984 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:52:40,986 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:52:40,986 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:52:40,986 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.c [2018-11-18 10:52:41,030 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/data/ca0c4803e/a909eb97394f4fbba5b417d7e88f6539/FLAG0314d1606 [2018-11-18 10:52:41,487 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:52:41,488 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/sv-benchmarks/c/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.c [2018-11-18 10:52:41,497 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/data/ca0c4803e/a909eb97394f4fbba5b417d7e88f6539/FLAG0314d1606 [2018-11-18 10:52:42,010 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/data/ca0c4803e/a909eb97394f4fbba5b417d7e88f6539 [2018-11-18 10:52:42,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:52:42,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:52:42,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:52:42,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:52:42,016 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:52:42,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:52:42" (1/1) ... [2018-11-18 10:52:42,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88e9939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:42, skipping insertion in model container [2018-11-18 10:52:42,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:52:42" (1/1) ... [2018-11-18 10:52:42,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:52:42,061 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:52:42,343 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:52:42,346 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:52:42,435 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:52:42,447 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:52:42,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:42 WrapperNode [2018-11-18 10:52:42,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:52:42,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:52:42,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:52:42,448 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:52:42,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:42" (1/1) ... [2018-11-18 10:52:42,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:42" (1/1) ... [2018-11-18 10:52:42,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:52:42,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:52:42,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:52:42,536 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:52:42,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:42" (1/1) ... [2018-11-18 10:52:42,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:42" (1/1) ... [2018-11-18 10:52:42,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:42" (1/1) ... [2018-11-18 10:52:42,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:42" (1/1) ... [2018-11-18 10:52:42,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:42" (1/1) ... [2018-11-18 10:52:42,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:42" (1/1) ... [2018-11-18 10:52:42,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:42" (1/1) ... [2018-11-18 10:52:42,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:52:42,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:52:42,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:52:42,589 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:52:42,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/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 10:52:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 10:52:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:52:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:52:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 10:52:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 10:52:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:52:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:52:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:52:42,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:52:43,683 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:52:43,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:43 BoogieIcfgContainer [2018-11-18 10:52:43,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:52:43,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:52:43,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:52:43,686 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:52:43,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:52:42" (1/3) ... [2018-11-18 10:52:43,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3c6ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:52:43, skipping insertion in model container [2018-11-18 10:52:43,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:42" (2/3) ... [2018-11-18 10:52:43,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3c6ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:52:43, skipping insertion in model container [2018-11-18 10:52:43,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:43" (3/3) ... [2018-11-18 10:52:43,689 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label24_true-unreach-call_false-termination.c [2018-11-18 10:52:43,695 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:52:43,701 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:52:43,710 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:52:43,733 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:52:43,733 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:52:43,733 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:52:43,734 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:52:43,734 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:52:43,734 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:52:43,734 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:52:43,734 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:52:43,751 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-11-18 10:52:43,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 10:52:43,756 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:43,757 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] [2018-11-18 10:52:43,759 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:43,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:43,763 INFO L82 PathProgramCache]: Analyzing trace with hash -364363092, now seen corresponding path program 1 times [2018-11-18 10:52:43,764 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:43,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:43,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:43,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:43,794 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:43,964 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 10:52:43,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:43,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:52:43,966 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:43,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:52:43,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:52:43,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:52:43,980 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-11-18 10:52:44,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:44,699 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-11-18 10:52:44,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:52:44,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 10:52:44,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:44,710 INFO L225 Difference]: With dead ends: 691 [2018-11-18 10:52:44,710 INFO L226 Difference]: Without dead ends: 434 [2018-11-18 10:52:44,714 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 10:52:44,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-11-18 10:52:44,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-11-18 10:52:44,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-11-18 10:52:44,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-11-18 10:52:44,773 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 48 [2018-11-18 10:52:44,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:44,774 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-11-18 10:52:44,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:52:44,774 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-11-18 10:52:44,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-11-18 10:52:44,778 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:44,779 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 10:52:44,779 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:44,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:44,779 INFO L82 PathProgramCache]: Analyzing trace with hash 792460239, now seen corresponding path program 1 times [2018-11-18 10:52:44,779 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:44,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:44,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:44,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:44,781 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:44,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:44,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:52:44,928 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:44,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:52:44,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:52:44,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:52:44,930 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-11-18 10:52:45,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:45,602 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-11-18 10:52:45,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:52:45,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-11-18 10:52:45,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:45,607 INFO L225 Difference]: With dead ends: 1062 [2018-11-18 10:52:45,607 INFO L226 Difference]: Without dead ends: 634 [2018-11-18 10:52:45,609 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:52:45,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-11-18 10:52:45,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-11-18 10:52:45,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-11-18 10:52:45,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-11-18 10:52:45,636 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 123 [2018-11-18 10:52:45,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:45,637 INFO L480 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-11-18 10:52:45,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:52:45,637 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-11-18 10:52:45,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-18 10:52:45,639 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:45,639 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 10:52:45,640 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:45,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:45,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1806555924, now seen corresponding path program 1 times [2018-11-18 10:52:45,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:45,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:45,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:45,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:45,641 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:45,715 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:45,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:45,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 10:52:45,715 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:45,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 10:52:45,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 10:52:45,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:52:45,717 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 4 states. [2018-11-18 10:52:46,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:46,615 INFO L93 Difference]: Finished difference Result 2348 states and 3999 transitions. [2018-11-18 10:52:46,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:52:46,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2018-11-18 10:52:46,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:46,621 INFO L225 Difference]: With dead ends: 2348 [2018-11-18 10:52:46,621 INFO L226 Difference]: Without dead ends: 1729 [2018-11-18 10:52:46,625 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:52:46,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2018-11-18 10:52:46,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1729. [2018-11-18 10:52:46,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1729 states. [2018-11-18 10:52:46,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2669 transitions. [2018-11-18 10:52:46,655 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2669 transitions. Word has length 132 [2018-11-18 10:52:46,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:46,655 INFO L480 AbstractCegarLoop]: Abstraction has 1729 states and 2669 transitions. [2018-11-18 10:52:46,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 10:52:46,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2669 transitions. [2018-11-18 10:52:46,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-11-18 10:52:46,660 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:46,660 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:46,660 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:46,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:46,660 INFO L82 PathProgramCache]: Analyzing trace with hash 38946104, now seen corresponding path program 1 times [2018-11-18 10:52:46,661 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:46,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:46,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:46,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:46,661 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:46,881 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 82 proven. 70 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 10:52:46,881 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:52:46,881 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:52:46,882 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-11-18 10:52:46,883 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:52:46,916 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:52:46,917 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:52:48,890 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 10:52:48,891 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Performed 1048 root evaluator evaluations with a maximum evaluation depth of 22. Performed 1048 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Never found a fixpoint. Largest state had 24 variables. [2018-11-18 10:52:48,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:48,905 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 10:52:51,120 INFO L227 lantSequenceWeakener]: Weakened 227 states. On average, predicates are now at 77.91% of their original sizes. [2018-11-18 10:52:51,120 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 10:52:51,143 INFO L415 sIntCurrentIteration]: We unified 235 AI predicates to 235 [2018-11-18 10:52:51,144 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 10:52:51,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 10:52:51,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-11-18 10:52:51,145 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:51,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:52:51,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:52:51,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:52:51,146 INFO L87 Difference]: Start difference. First operand 1729 states and 2669 transitions. Second operand 6 states. [2018-11-18 10:53:01,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:53:01,734 INFO L93 Difference]: Finished difference Result 3637 states and 5622 transitions. [2018-11-18 10:53:01,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:53:01,735 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 236 [2018-11-18 10:53:01,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:53:01,743 INFO L225 Difference]: With dead ends: 3637 [2018-11-18 10:53:01,743 INFO L226 Difference]: Without dead ends: 1914 [2018-11-18 10:53:01,749 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 236 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:53:01,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2018-11-18 10:53:01,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1912. [2018-11-18 10:53:01,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1912 states. [2018-11-18 10:53:01,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2860 transitions. [2018-11-18 10:53:01,791 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2860 transitions. Word has length 236 [2018-11-18 10:53:01,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:53:01,792 INFO L480 AbstractCegarLoop]: Abstraction has 1912 states and 2860 transitions. [2018-11-18 10:53:01,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:53:01,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2860 transitions. [2018-11-18 10:53:01,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2018-11-18 10:53:01,799 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:53:01,799 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 10:53:01,799 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:53:01,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:01,800 INFO L82 PathProgramCache]: Analyzing trace with hash 142855015, now seen corresponding path program 1 times [2018-11-18 10:53:01,800 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:53:01,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:01,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:01,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:01,801 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:53:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:02,235 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 211 proven. 142 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 10:53:02,235 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:02,235 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:53:02,236 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 322 with the following transitions: [2018-11-18 10:53:02,236 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:53:02,238 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:53:02,238 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:53:05,462 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 10:53:05,462 INFO L272 AbstractInterpreter]: Visited 122 different actions 237 times. Merged at 4 different actions 4 times. Never widened. Performed 2161 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2161 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 10:53:05,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:05,464 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 10:53:06,990 INFO L227 lantSequenceWeakener]: Weakened 318 states. On average, predicates are now at 77.81% of their original sizes. [2018-11-18 10:53:06,990 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 10:53:07,062 INFO L415 sIntCurrentIteration]: We unified 320 AI predicates to 320 [2018-11-18 10:53:07,062 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 10:53:07,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 10:53:07,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-11-18 10:53:07,063 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:53:07,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 10:53:07,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 10:53:07,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 10:53:07,064 INFO L87 Difference]: Start difference. First operand 1912 states and 2860 transitions. Second operand 10 states. [2018-11-18 10:53:26,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:53:26,806 INFO L93 Difference]: Finished difference Result 4192 states and 6355 transitions. [2018-11-18 10:53:26,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 10:53:26,807 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 321 [2018-11-18 10:53:26,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:53:26,816 INFO L225 Difference]: With dead ends: 4192 [2018-11-18 10:53:26,816 INFO L226 Difference]: Without dead ends: 2469 [2018-11-18 10:53:26,823 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 329 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-18 10:53:26,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2018-11-18 10:53:26,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 2466. [2018-11-18 10:53:26,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2466 states. [2018-11-18 10:53:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 3449 transitions. [2018-11-18 10:53:26,879 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 3449 transitions. Word has length 321 [2018-11-18 10:53:26,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:53:26,879 INFO L480 AbstractCegarLoop]: Abstraction has 2466 states and 3449 transitions. [2018-11-18 10:53:26,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 10:53:26,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 3449 transitions. [2018-11-18 10:53:26,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2018-11-18 10:53:26,889 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:53:26,889 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:53:26,889 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:53:26,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:26,890 INFO L82 PathProgramCache]: Analyzing trace with hash -67105873, now seen corresponding path program 1 times [2018-11-18 10:53:26,890 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:53:26,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:26,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:26,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:26,891 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:53:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:27,484 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 362 proven. 212 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-18 10:53:27,484 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:27,484 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:53:27,485 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 422 with the following transitions: [2018-11-18 10:53:27,485 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:53:27,488 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:53:27,488 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:53:30,236 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 10:53:30,237 INFO L272 AbstractInterpreter]: Visited 123 different actions 240 times. Merged at 5 different actions 5 times. Never widened. Performed 2172 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2172 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 10:53:30,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:30,241 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 10:53:31,815 INFO L227 lantSequenceWeakener]: Weakened 418 states. On average, predicates are now at 77.71% of their original sizes. [2018-11-18 10:53:31,815 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 10:53:31,856 INFO L415 sIntCurrentIteration]: We unified 420 AI predicates to 420 [2018-11-18 10:53:31,857 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 10:53:31,857 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 10:53:31,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-11-18 10:53:31,857 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:53:31,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 10:53:31,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 10:53:31,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 10:53:31,858 INFO L87 Difference]: Start difference. First operand 2466 states and 3449 transitions. Second operand 10 states. [2018-11-18 10:53:42,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:53:42,604 INFO L93 Difference]: Finished difference Result 4931 states and 6909 transitions. [2018-11-18 10:53:42,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 10:53:42,604 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 421 [2018-11-18 10:53:42,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:53:42,611 INFO L225 Difference]: With dead ends: 4931 [2018-11-18 10:53:42,611 INFO L226 Difference]: Without dead ends: 2654 [2018-11-18 10:53:42,617 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 428 GetRequests, 412 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 10:53:42,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2018-11-18 10:53:42,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2651. [2018-11-18 10:53:42,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2651 states. [2018-11-18 10:53:42,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2651 states to 2651 states and 3641 transitions. [2018-11-18 10:53:42,667 INFO L78 Accepts]: Start accepts. Automaton has 2651 states and 3641 transitions. Word has length 421 [2018-11-18 10:53:42,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:53:42,667 INFO L480 AbstractCegarLoop]: Abstraction has 2651 states and 3641 transitions. [2018-11-18 10:53:42,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 10:53:42,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2651 states and 3641 transitions. [2018-11-18 10:53:42,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2018-11-18 10:53:42,679 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:53:42,679 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:53:42,679 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:53:42,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:42,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1778676391, now seen corresponding path program 1 times [2018-11-18 10:53:42,679 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:53:42,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:42,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:53:42,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:53:42,680 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:53:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:53:43,015 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 396 proven. 74 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2018-11-18 10:53:43,015 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:53:43,015 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:53:43,015 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 458 with the following transitions: [2018-11-18 10:53:43,015 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:53:43,018 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:53:43,018 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:53:49,469 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 10:53:49,469 INFO L272 AbstractInterpreter]: Visited 123 different actions 368 times. Merged at 7 different actions 21 times. Never widened. Performed 3551 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3551 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 10:53:49,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:53:49,471 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 10:53:50,355 INFO L227 lantSequenceWeakener]: Weakened 454 states. On average, predicates are now at 80.25% of their original sizes. [2018-11-18 10:53:50,356 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 10:53:50,413 INFO L415 sIntCurrentIteration]: We unified 456 AI predicates to 456 [2018-11-18 10:53:50,413 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 10:53:50,413 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 10:53:50,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-11-18 10:53:50,413 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:53:50,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 10:53:50,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 10:53:50,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 10:53:50,414 INFO L87 Difference]: Start difference. First operand 2651 states and 3641 transitions. Second operand 10 states. [2018-11-18 10:54:08,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:54:08,416 INFO L93 Difference]: Finished difference Result 6026 states and 8566 transitions. [2018-11-18 10:54:08,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 10:54:08,416 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 457 [2018-11-18 10:54:08,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:54:08,422 INFO L225 Difference]: With dead ends: 6026 [2018-11-18 10:54:08,422 INFO L226 Difference]: Without dead ends: 3749 [2018-11-18 10:54:08,426 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 467 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-18 10:54:08,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3749 states. [2018-11-18 10:54:08,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3749 to 3723. [2018-11-18 10:54:08,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3723 states. [2018-11-18 10:54:08,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5044 transitions. [2018-11-18 10:54:08,469 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5044 transitions. Word has length 457 [2018-11-18 10:54:08,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:54:08,470 INFO L480 AbstractCegarLoop]: Abstraction has 3723 states and 5044 transitions. [2018-11-18 10:54:08,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 10:54:08,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5044 transitions. [2018-11-18 10:54:08,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2018-11-18 10:54:08,474 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:54:08,475 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:54:08,475 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:54:08,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:54:08,475 INFO L82 PathProgramCache]: Analyzing trace with hash 336884832, now seen corresponding path program 1 times [2018-11-18 10:54:08,475 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:54:08,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:08,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:54:08,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:08,476 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:54:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:54:08,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 303 proven. 253 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2018-11-18 10:54:08,649 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:54:08,649 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:54:08,649 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 507 with the following transitions: [2018-11-18 10:54:08,649 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:54:08,651 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:54:08,651 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:54:13,230 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:54:13,230 INFO L272 AbstractInterpreter]: Visited 125 different actions 503 times. Merged at 10 different actions 39 times. Never widened. Performed 4751 root evaluator evaluations with a maximum evaluation depth of 22. Performed 4751 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 10 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 10:54:13,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:54:13,232 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:54:13,232 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:54:13,232 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/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 10:54:13,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:54:13,238 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:54:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:54:13,336 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:54:13,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 656 proven. 2 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2018-11-18 10:54:13,473 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:54:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 303 proven. 253 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2018-11-18 10:54:13,651 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:54:13,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-18 10:54:13,651 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:54:13,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 10:54:13,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 10:54:13,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-18 10:54:13,652 INFO L87 Difference]: Start difference. First operand 3723 states and 5044 transitions. Second operand 9 states. [2018-11-18 10:54:15,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:54:15,667 INFO L93 Difference]: Finished difference Result 7663 states and 10610 transitions. [2018-11-18 10:54:15,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 10:54:15,667 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 506 [2018-11-18 10:54:15,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:54:15,673 INFO L225 Difference]: With dead ends: 7663 [2018-11-18 10:54:15,673 INFO L226 Difference]: Without dead ends: 3945 [2018-11-18 10:54:15,681 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1060 GetRequests, 1028 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=226, Invalid=704, Unknown=0, NotChecked=0, Total=930 [2018-11-18 10:54:15,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3945 states. [2018-11-18 10:54:15,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3945 to 3740. [2018-11-18 10:54:15,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3740 states. [2018-11-18 10:54:15,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 4520 transitions. [2018-11-18 10:54:15,736 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 4520 transitions. Word has length 506 [2018-11-18 10:54:15,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:54:15,736 INFO L480 AbstractCegarLoop]: Abstraction has 3740 states and 4520 transitions. [2018-11-18 10:54:15,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 10:54:15,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 4520 transitions. [2018-11-18 10:54:15,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2018-11-18 10:54:15,743 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:54:15,743 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:54:15,743 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:54:15,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:54:15,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1153318864, now seen corresponding path program 1 times [2018-11-18 10:54:15,743 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:54:15,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:15,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:54:15,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:15,744 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:54:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:54:16,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 524 proven. 385 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-11-18 10:54:16,387 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:54:16,387 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:54:16,387 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 531 with the following transitions: [2018-11-18 10:54:16,387 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:54:16,389 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:54:16,390 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:54:23,424 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:54:23,424 INFO L272 AbstractInterpreter]: Visited 125 different actions 494 times. Merged at 10 different actions 30 times. Never widened. Performed 4871 root evaluator evaluations with a maximum evaluation depth of 22. Performed 4871 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 10:54:23,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:54:23,425 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:54:23,426 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:54:23,426 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/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 10:54:23,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:54:23,449 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:54:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:54:23,514 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:54:23,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 759 proven. 2 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2018-11-18 10:54:23,783 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:54:24,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 518 proven. 74 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2018-11-18 10:54:24,122 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:54:24,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-18 10:54:24,122 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:54:24,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 10:54:24,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 10:54:24,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-18 10:54:24,123 INFO L87 Difference]: Start difference. First operand 3740 states and 4520 transitions. Second operand 17 states. [2018-11-18 10:54:26,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:54:26,905 INFO L93 Difference]: Finished difference Result 8644 states and 10785 transitions. [2018-11-18 10:54:26,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-18 10:54:26,905 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 530 [2018-11-18 10:54:26,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:54:26,913 INFO L225 Difference]: With dead ends: 8644 [2018-11-18 10:54:26,913 INFO L226 Difference]: Without dead ends: 4157 [2018-11-18 10:54:26,922 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1118 GetRequests, 1071 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=521, Invalid=1735, Unknown=0, NotChecked=0, Total=2256 [2018-11-18 10:54:26,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4157 states. [2018-11-18 10:54:26,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4157 to 3892. [2018-11-18 10:54:26,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3892 states. [2018-11-18 10:54:26,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3892 states to 3892 states and 4442 transitions. [2018-11-18 10:54:26,985 INFO L78 Accepts]: Start accepts. Automaton has 3892 states and 4442 transitions. Word has length 530 [2018-11-18 10:54:26,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:54:26,985 INFO L480 AbstractCegarLoop]: Abstraction has 3892 states and 4442 transitions. [2018-11-18 10:54:26,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 10:54:26,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3892 states and 4442 transitions. [2018-11-18 10:54:26,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2018-11-18 10:54:26,991 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:54:26,991 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-11-18 10:54:26,991 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:54:26,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:54:26,992 INFO L82 PathProgramCache]: Analyzing trace with hash 880002196, now seen corresponding path program 1 times [2018-11-18 10:54:26,992 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:54:26,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:26,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:54:26,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:26,993 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:54:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:54:27,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 563 proven. 74 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2018-11-18 10:54:27,425 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:54:27,425 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:54:27,425 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 643 with the following transitions: [2018-11-18 10:54:27,426 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:54:27,428 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:54:27,428 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:54:31,464 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:54:31,465 INFO L272 AbstractInterpreter]: Visited 192 different actions 765 times. Merged at 10 different actions 33 times. Never widened. Performed 8456 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8456 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 10:54:31,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:54:31,473 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:54:31,473 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:54:31,473 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/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 10:54:31,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:54:31,479 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:54:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:54:31,553 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:54:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 806 proven. 2 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2018-11-18 10:54:31,690 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:54:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 563 proven. 74 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2018-11-18 10:54:31,923 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:54:31,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-18 10:54:31,923 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:54:31,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:54:31,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:54:31,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:54:31,924 INFO L87 Difference]: Start difference. First operand 3892 states and 4442 transitions. Second operand 7 states. [2018-11-18 10:54:32,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:54:32,910 INFO L93 Difference]: Finished difference Result 12354 states and 16110 transitions. [2018-11-18 10:54:32,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 10:54:32,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 642 [2018-11-18 10:54:32,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:54:32,947 INFO L225 Difference]: With dead ends: 12354 [2018-11-18 10:54:32,947 INFO L226 Difference]: Without dead ends: 8836 [2018-11-18 10:54:32,968 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1300 GetRequests, 1287 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-18 10:54:32,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8836 states. [2018-11-18 10:54:33,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8836 to 8605. [2018-11-18 10:54:33,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8605 states. [2018-11-18 10:54:33,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8605 states to 8605 states and 10001 transitions. [2018-11-18 10:54:33,133 INFO L78 Accepts]: Start accepts. Automaton has 8605 states and 10001 transitions. Word has length 642 [2018-11-18 10:54:33,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:54:33,134 INFO L480 AbstractCegarLoop]: Abstraction has 8605 states and 10001 transitions. [2018-11-18 10:54:33,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:54:33,134 INFO L276 IsEmpty]: Start isEmpty. Operand 8605 states and 10001 transitions. [2018-11-18 10:54:33,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2018-11-18 10:54:33,142 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:54:33,143 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:54:33,143 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:54:33,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:54:33,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1564458828, now seen corresponding path program 1 times [2018-11-18 10:54:33,143 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:54:33,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:33,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:54:33,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:33,144 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:54:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:54:33,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 447 proven. 249 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2018-11-18 10:54:33,692 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:54:33,692 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:54:33,692 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 703 with the following transitions: [2018-11-18 10:54:33,692 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:54:33,694 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:54:33,694 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:54:37,697 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:54:37,697 INFO L272 AbstractInterpreter]: Visited 192 different actions 775 times. Merged at 10 different actions 43 times. Widened at 1 different actions 1 times. Performed 8518 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8518 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 10:54:37,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:54:37,699 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:54:37,699 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:54:37,699 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/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 10:54:37,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:54:37,705 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:54:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:54:37,786 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:54:37,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 967 proven. 2 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2018-11-18 10:54:37,928 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:54:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 447 proven. 249 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2018-11-18 10:54:38,355 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:54:38,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 8 [2018-11-18 10:54:38,355 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:54:38,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:54:38,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:54:38,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:54:38,356 INFO L87 Difference]: Start difference. First operand 8605 states and 10001 transitions. Second operand 7 states. [2018-11-18 10:54:39,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:54:39,180 INFO L93 Difference]: Finished difference Result 19271 states and 22689 transitions. [2018-11-18 10:54:39,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 10:54:39,181 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 702 [2018-11-18 10:54:39,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:54:39,193 INFO L225 Difference]: With dead ends: 19271 [2018-11-18 10:54:39,193 INFO L226 Difference]: Without dead ends: 7201 [2018-11-18 10:54:39,217 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1424 GetRequests, 1407 SyntacticMatches, 6 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-11-18 10:54:39,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7201 states. [2018-11-18 10:54:39,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7201 to 6980. [2018-11-18 10:54:39,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6980 states. [2018-11-18 10:54:39,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6980 states to 6980 states and 7622 transitions. [2018-11-18 10:54:39,289 INFO L78 Accepts]: Start accepts. Automaton has 6980 states and 7622 transitions. Word has length 702 [2018-11-18 10:54:39,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:54:39,289 INFO L480 AbstractCegarLoop]: Abstraction has 6980 states and 7622 transitions. [2018-11-18 10:54:39,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:54:39,289 INFO L276 IsEmpty]: Start isEmpty. Operand 6980 states and 7622 transitions. [2018-11-18 10:54:39,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2018-11-18 10:54:39,295 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:54:39,295 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:54:39,295 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:54:39,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:54:39,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1138657660, now seen corresponding path program 1 times [2018-11-18 10:54:39,296 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:54:39,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:39,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:54:39,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:39,297 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:54:39,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:54:40,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 779 proven. 677 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2018-11-18 10:54:40,551 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:54:40,551 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:54:40,552 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 803 with the following transitions: [2018-11-18 10:54:40,552 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [854], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:54:40,553 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:54:40,553 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:54:44,561 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:54:44,561 INFO L272 AbstractInterpreter]: Visited 193 different actions 777 times. Merged at 10 different actions 41 times. Widened at 1 different actions 2 times. Performed 8612 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8612 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 11 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-18 10:54:44,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:54:44,562 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:54:44,562 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:54:44,562 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:54:44,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:54:44,569 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:54:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:54:44,666 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:54:44,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 1085 proven. 2 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2018-11-18 10:54:44,903 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:54:45,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 772 proven. 74 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2018-11-18 10:54:45,216 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:54:45,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 22 [2018-11-18 10:54:45,217 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:54:45,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-18 10:54:45,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-18 10:54:45,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-11-18 10:54:45,218 INFO L87 Difference]: Start difference. First operand 6980 states and 7622 transitions. Second operand 20 states. [2018-11-18 10:54:49,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:54:49,371 INFO L93 Difference]: Finished difference Result 14680 states and 16155 transitions. [2018-11-18 10:54:49,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-11-18 10:54:49,372 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 802 [2018-11-18 10:54:49,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:54:49,387 INFO L225 Difference]: With dead ends: 14680 [2018-11-18 10:54:49,387 INFO L226 Difference]: Without dead ends: 8074 [2018-11-18 10:54:49,400 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1736 GetRequests, 1650 SyntacticMatches, 5 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2071 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1057, Invalid=5749, Unknown=0, NotChecked=0, Total=6806 [2018-11-18 10:54:49,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8074 states. [2018-11-18 10:54:49,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8074 to 7338. [2018-11-18 10:54:49,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7338 states. [2018-11-18 10:54:49,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7338 states to 7338 states and 7894 transitions. [2018-11-18 10:54:49,503 INFO L78 Accepts]: Start accepts. Automaton has 7338 states and 7894 transitions. Word has length 802 [2018-11-18 10:54:49,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:54:49,504 INFO L480 AbstractCegarLoop]: Abstraction has 7338 states and 7894 transitions. [2018-11-18 10:54:49,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-18 10:54:49,504 INFO L276 IsEmpty]: Start isEmpty. Operand 7338 states and 7894 transitions. [2018-11-18 10:54:49,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2018-11-18 10:54:49,514 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:54:49,515 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 10:54:49,515 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:54:49,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:54:49,515 INFO L82 PathProgramCache]: Analyzing trace with hash 655338480, now seen corresponding path program 1 times [2018-11-18 10:54:49,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:54:49,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:49,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:54:49,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:49,516 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:54:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:54:51,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2888 backedges. 730 proven. 1256 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2018-11-18 10:54:51,399 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:54:51,400 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:54:51,400 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 971 with the following transitions: [2018-11-18 10:54:51,400 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [522], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:54:51,402 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:54:51,402 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:54:55,391 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:54:55,391 INFO L272 AbstractInterpreter]: Visited 194 different actions 774 times. Merged at 11 different actions 34 times. Never widened. Performed 8509 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8509 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 12 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-18 10:54:55,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:54:55,397 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:54:55,397 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:54:55,397 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:54:55,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:54:55,402 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:54:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:54:55,510 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:54:56,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2888 backedges. 1934 proven. 2 refuted. 0 times theorem prover too weak. 952 trivial. 0 not checked. [2018-11-18 10:54:56,169 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:54:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2888 backedges. 724 proven. 400 refuted. 0 times theorem prover too weak. 1764 trivial. 0 not checked. [2018-11-18 10:54:57,074 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:54:57,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 20 [2018-11-18 10:54:57,075 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:54:57,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 10:54:57,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 10:54:57,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2018-11-18 10:54:57,076 INFO L87 Difference]: Start difference. First operand 7338 states and 7894 transitions. Second operand 18 states. [2018-11-18 10:54:59,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:54:59,485 INFO L93 Difference]: Finished difference Result 15728 states and 17052 transitions. [2018-11-18 10:54:59,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-18 10:54:59,485 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 970 [2018-11-18 10:54:59,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:54:59,500 INFO L225 Difference]: With dead ends: 15728 [2018-11-18 10:54:59,500 INFO L226 Difference]: Without dead ends: 8078 [2018-11-18 10:54:59,512 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1992 GetRequests, 1951 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2018-11-18 10:54:59,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8078 states. [2018-11-18 10:54:59,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8078 to 7520. [2018-11-18 10:54:59,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7520 states. [2018-11-18 10:54:59,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7520 states to 7520 states and 8061 transitions. [2018-11-18 10:54:59,614 INFO L78 Accepts]: Start accepts. Automaton has 7520 states and 8061 transitions. Word has length 970 [2018-11-18 10:54:59,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:54:59,615 INFO L480 AbstractCegarLoop]: Abstraction has 7520 states and 8061 transitions. [2018-11-18 10:54:59,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 10:54:59,615 INFO L276 IsEmpty]: Start isEmpty. Operand 7520 states and 8061 transitions. [2018-11-18 10:54:59,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1034 [2018-11-18 10:54:59,625 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:54:59,626 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 10:54:59,626 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:54:59,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:54:59,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1650399321, now seen corresponding path program 1 times [2018-11-18 10:54:59,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:54:59,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:59,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:54:59,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:54:59,627 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:54:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:55:01,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3014 backedges. 730 proven. 1481 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2018-11-18 10:55:01,292 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:55:01,292 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:55:01,292 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1034 with the following transitions: [2018-11-18 10:55:01,292 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [522], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [910], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:55:01,294 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:55:01,294 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:55:05,316 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:55:05,316 INFO L272 AbstractInterpreter]: Visited 195 different actions 786 times. Merged at 12 different actions 42 times. Widened at 1 different actions 1 times. Performed 8697 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8697 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 14 fixpoints after 6 different actions. Largest state had 24 variables. [2018-11-18 10:55:05,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:55:05,318 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:55:05,318 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:55:05,318 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:55:05,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:55:05,325 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:55:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:55:05,456 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:55:05,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3014 backedges. 869 proven. 2 refuted. 0 times theorem prover too weak. 2143 trivial. 0 not checked. [2018-11-18 10:55:05,774 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:55:06,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3014 backedges. 869 proven. 2 refuted. 0 times theorem prover too weak. 2143 trivial. 0 not checked. [2018-11-18 10:55:06,412 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:55:06,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 17 [2018-11-18 10:55:06,412 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:55:06,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 10:55:06,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 10:55:06,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2018-11-18 10:55:06,414 INFO L87 Difference]: Start difference. First operand 7520 states and 8061 transitions. Second operand 15 states. [2018-11-18 10:55:08,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:55:08,958 INFO L93 Difference]: Finished difference Result 15488 states and 16701 transitions. [2018-11-18 10:55:08,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-11-18 10:55:08,958 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 1033 [2018-11-18 10:55:08,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:55:08,968 INFO L225 Difference]: With dead ends: 15488 [2018-11-18 10:55:08,968 INFO L226 Difference]: Without dead ends: 7768 [2018-11-18 10:55:08,975 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2135 GetRequests, 2087 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=464, Invalid=1888, Unknown=0, NotChecked=0, Total=2352 [2018-11-18 10:55:08,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7768 states. [2018-11-18 10:55:09,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7768 to 7460. [2018-11-18 10:55:09,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7460 states. [2018-11-18 10:55:09,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7460 states to 7460 states and 7941 transitions. [2018-11-18 10:55:09,076 INFO L78 Accepts]: Start accepts. Automaton has 7460 states and 7941 transitions. Word has length 1033 [2018-11-18 10:55:09,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:55:09,077 INFO L480 AbstractCegarLoop]: Abstraction has 7460 states and 7941 transitions. [2018-11-18 10:55:09,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 10:55:09,077 INFO L276 IsEmpty]: Start isEmpty. Operand 7460 states and 7941 transitions. [2018-11-18 10:55:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1108 [2018-11-18 10:55:09,089 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:55:09,089 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 10:55:09,089 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:55:09,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:55:09,090 INFO L82 PathProgramCache]: Analyzing trace with hash 335900483, now seen corresponding path program 1 times [2018-11-18 10:55:09,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:55:09,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:55:09,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:55:09,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:55:09,091 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:55:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:55:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 1722 proven. 265 refuted. 0 times theorem prover too weak. 1795 trivial. 0 not checked. [2018-11-18 10:55:09,802 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:55:09,802 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:55:09,802 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1108 with the following transitions: [2018-11-18 10:55:09,802 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:55:09,804 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:55:09,805 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:55:13,829 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:55:13,829 INFO L272 AbstractInterpreter]: Visited 196 different actions 790 times. Merged at 12 different actions 42 times. Widened at 1 different actions 1 times. Performed 8744 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8744 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 6 different actions. Largest state had 24 variables. [2018-11-18 10:55:13,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:55:13,833 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:55:13,833 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:55:13,833 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:55:13,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:55:13,839 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:55:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:55:13,988 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:55:14,402 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 2245 proven. 6 refuted. 0 times theorem prover too weak. 1531 trivial. 0 not checked. [2018-11-18 10:55:14,402 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:55:14,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 1722 proven. 269 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2018-11-18 10:55:15,013 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:55:15,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2018-11-18 10:55:15,014 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:55:15,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 10:55:15,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 10:55:15,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-11-18 10:55:15,015 INFO L87 Difference]: Start difference. First operand 7460 states and 7941 transitions. Second operand 9 states. [2018-11-18 10:55:16,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:55:16,117 INFO L93 Difference]: Finished difference Result 15377 states and 16622 transitions. [2018-11-18 10:55:16,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 10:55:16,117 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1107 [2018-11-18 10:55:16,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:55:16,128 INFO L225 Difference]: With dead ends: 15377 [2018-11-18 10:55:16,129 INFO L226 Difference]: Without dead ends: 9590 [2018-11-18 10:55:16,135 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2238 GetRequests, 2216 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=146, Invalid=316, Unknown=0, NotChecked=0, Total=462 [2018-11-18 10:55:16,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9590 states. [2018-11-18 10:55:16,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9590 to 9332. [2018-11-18 10:55:16,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9332 states. [2018-11-18 10:55:16,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9332 states to 9332 states and 10004 transitions. [2018-11-18 10:55:16,237 INFO L78 Accepts]: Start accepts. Automaton has 9332 states and 10004 transitions. Word has length 1107 [2018-11-18 10:55:16,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:55:16,238 INFO L480 AbstractCegarLoop]: Abstraction has 9332 states and 10004 transitions. [2018-11-18 10:55:16,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 10:55:16,238 INFO L276 IsEmpty]: Start isEmpty. Operand 9332 states and 10004 transitions. [2018-11-18 10:55:16,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1408 [2018-11-18 10:55:16,247 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:55:16,248 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:55:16,248 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:55:16,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:55:16,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1241113431, now seen corresponding path program 1 times [2018-11-18 10:55:16,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:55:16,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:55:16,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:55:16,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:55:16,249 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:55:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:55:18,437 INFO L134 CoverageAnalysis]: Checked inductivity of 5421 backedges. 1084 proven. 2535 refuted. 0 times theorem prover too weak. 1802 trivial. 0 not checked. [2018-11-18 10:55:18,438 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:55:18,438 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:55:18,438 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1408 with the following transitions: [2018-11-18 10:55:18,438 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [930], [931], [934], [935], [939], [943], [946], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 10:55:18,440 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:55:18,440 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:55:22,597 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:55:22,597 INFO L272 AbstractInterpreter]: Visited 200 different actions 809 times. Merged at 13 different actions 45 times. Widened at 1 different actions 2 times. Performed 8899 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8899 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 17 fixpoints after 8 different actions. Largest state had 24 variables. [2018-11-18 10:55:22,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:55:22,598 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:55:22,598 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:55:22,598 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:55:22,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:55:22,605 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:55:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:55:22,748 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:55:23,253 INFO L134 CoverageAnalysis]: Checked inductivity of 5421 backedges. 3115 proven. 2 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2018-11-18 10:55:23,254 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:55:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 5421 backedges. 1276 proven. 278 refuted. 0 times theorem prover too weak. 3867 trivial. 0 not checked. [2018-11-18 10:55:24,211 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 10:55:24,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 21 [2018-11-18 10:55:24,211 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 10:55:24,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-18 10:55:24,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-18 10:55:24,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2018-11-18 10:55:24,213 INFO L87 Difference]: Start difference. First operand 9332 states and 10004 transitions. Second operand 19 states. [2018-11-18 10:55:26,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:55:26,794 INFO L93 Difference]: Finished difference Result 17168 states and 19329 transitions. [2018-11-18 10:55:26,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-11-18 10:55:26,795 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1407 [2018-11-18 10:55:26,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:55:26,818 INFO L225 Difference]: With dead ends: 17168 [2018-11-18 10:55:26,818 INFO L226 Difference]: Without dead ends: 9694 [2018-11-18 10:55:26,827 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2896 GetRequests, 2841 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=717, Invalid=2253, Unknown=0, NotChecked=0, Total=2970 [2018-11-18 10:55:26,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9694 states. [2018-11-18 10:55:26,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9694 to 9332. [2018-11-18 10:55:26,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9332 states. [2018-11-18 10:55:26,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9332 states to 9332 states and 9996 transitions. [2018-11-18 10:55:26,950 INFO L78 Accepts]: Start accepts. Automaton has 9332 states and 9996 transitions. Word has length 1407 [2018-11-18 10:55:26,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:55:26,950 INFO L480 AbstractCegarLoop]: Abstraction has 9332 states and 9996 transitions. [2018-11-18 10:55:26,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-18 10:55:26,951 INFO L276 IsEmpty]: Start isEmpty. Operand 9332 states and 9996 transitions. [2018-11-18 10:55:26,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1527 [2018-11-18 10:55:26,963 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:55:26,963 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:55:26,963 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:55:26,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:55:26,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1101738340, now seen corresponding path program 1 times [2018-11-18 10:55:26,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:55:26,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:55:26,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:55:26,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:55:26,964 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:55:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:55:27,740 INFO L134 CoverageAnalysis]: Checked inductivity of 6555 backedges. 481 proven. 0 refuted. 0 times theorem prover too weak. 6074 trivial. 0 not checked. [2018-11-18 10:55:27,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:55:27,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 10:55:27,740 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:55:27,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 10:55:27,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 10:55:27,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:55:27,741 INFO L87 Difference]: Start difference. First operand 9332 states and 9996 transitions. Second operand 4 states. [2018-11-18 10:55:28,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:55:28,217 INFO L93 Difference]: Finished difference Result 19172 states and 20572 transitions. [2018-11-18 10:55:28,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:55:28,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1526 [2018-11-18 10:55:28,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:55:28,219 INFO L225 Difference]: With dead ends: 19172 [2018-11-18 10:55:28,219 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:55:28,238 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:55:28,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:55:28,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:55:28,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:55:28,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:55:28,239 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1526 [2018-11-18 10:55:28,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:55:28,239 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:55:28,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 10:55:28,239 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:55:28,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:55:28,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:55:28,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:28,593 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:28,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:28,668 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:28,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:28,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:28,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:28,823 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:28,824 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:28,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:28,994 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,079 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,359 WARN L180 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 543 DAG size of output: 454 [2018-11-18 10:55:29,415 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,506 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,572 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,572 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,686 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:55:29,985 WARN L180 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 478 [2018-11-18 10:55:30,974 WARN L180 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 91 [2018-11-18 10:55:32,468 WARN L180 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 424 DAG size of output: 88 [2018-11-18 10:55:34,077 WARN L180 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 450 DAG size of output: 86 [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,079 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,080 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,081 INFO L425 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-18 10:55:34,092 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 10:55:34,093 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 10:55:34,094 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse23 (= |old(~a15~0)| ~a15~0)) (.cse21 (= 1 ~a24~0)) (.cse2 (= ~a12~0 |old(~a12~0)|)) (.cse20 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a24~0 1)) (.cse9 (= 8 |old(~a15~0)|)) (.cse14 (= 10 |old(~a21~0)|))) (let ((.cse0 (not .cse14)) (.cse13 (< 11 |old(~a12~0)|)) (.cse5 (not .cse9)) (.cse1 (= |calculate_output_#in~input| 0)) (.cse12 (= 6 |old(~a21~0)|)) (.cse11 (and .cse2 .cse20 (= 8 ~a15~0) .cse3)) (.cse15 (= 0 |old(~a21~0)|)) (.cse17 (not (= 8 |old(~a21~0)|))) (.cse19 (<= |old(~a12~0)| 11)) (.cse16 (< |old(~a12~0)| 12849)) (.cse7 (and .cse2 .cse20 .cse23 .cse21)) (.cse4 (not (= 1 |old(~a24~0)|))) (.cse6 (<= |old(~a12~0)| 80)) (.cse18 (< 76 |old(~a12~0)|)) (.cse8 (= 6 |old(~a15~0)|)) (.cse22 (< 6 |old(~a21~0)|)) (.cse10 (= 9 |old(~a15~0)|))) (and (or (or .cse0 .cse1) (and (and .cse2 (= ~a21~0 10) .cse3) (= ~a15~0 |old(~a15~0)|)) .cse4 .cse5 .cse6) (or .cse7 (or .cse0 .cse4 .cse8 .cse6 .cse9)) (or .cse7 .cse4 .cse8 .cse9 .cse10) (or .cse11 (not .cse12) (< |old(~a12~0)| 518246) .cse4 .cse5 .cse1) (or .cse0 .cse4 .cse13 .cse7 .cse9) (or .cse7 .cse12 .cse4 .cse9 .cse10 .cse14) (or .cse5 .cse1 .cse12 .cse15 .cse4 .cse13 .cse11) (or .cse11 .cse16 .cse4 .cse5 (< 73282 |old(~a12~0)|) .cse1 .cse17) (or .cse18 .cse5 .cse1 .cse12 .cse11 .cse15 .cse4 .cse14) (or (not (= 7 |old(~a21~0)|)) .cse4 .cse7 .cse19 .cse9) (or (not .cse10) (and .cse2 .cse20 .cse21 (= 9 ~a15~0)) .cse4 .cse17) (or .cse7 .cse18 .cse4 .cse19 .cse9 .cse22 .cse10) (or .cse7 .cse16 .cse4 .cse9 .cse22) (or .cse7 (< |old(~a21~0)| 9) .cse4 .cse6 .cse9 .cse14) (or (and .cse2 (= ~a24~0 |old(~a24~0)|) .cse20 .cse23) .cse18 .cse8 .cse9 .cse22 .cse10)))) [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-18 10:55:34,095 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 10:55:34,096 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-18 10:55:34,097 INFO L425 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 10:55:34,098 INFO L425 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,099 INFO L425 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 10:55:34,100 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,101 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 10:55:34,102 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 10:55:34,103 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 10:55:34,104 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-18 10:55:34,104 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:55:34,104 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-11-18 10:55:34,104 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:55:34,104 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:55:34,104 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-11-18 10:55:34,104 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-18 10:55:34,104 INFO L421 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse21 (= ~a15~0 8))) (let ((.cse15 (not (= ~a15~0 6))) (.cse4 (= 6 ~a21~0)) (.cse7 (not (= ~a15~0 9))) (.cse8 (= 1 ~a24~0)) (.cse9 (not .cse21)) (.cse14 (<= ~a21~0 6)) (.cse5 (not (= main_~input~0 0))) (.cse22 (= ~a24~0 1)) (.cse20 (<= 7 |old(~a21~0)|)) (.cse18 (= ~a21~0 10)) (.cse16 (= 8 |old(~a15~0)|))) (let ((.cse3 (< 80 ~a12~0)) (.cse11 (and .cse5 .cse22 .cse20 .cse18 .cse16 (= ~a15~0 |old(~a15~0)|))) (.cse17 (<= ~a12~0 11)) (.cse1 (<= 12849 ~a12~0)) (.cse12 (and .cse7 .cse8 .cse20 .cse9 .cse16 .cse14)) (.cse13 (<= ~a12~0 76)) (.cse6 (not (= 10 ~a21~0))) (.cse2 (and (not (= ~a21~0 0)) .cse5 .cse21 .cse22 .cse20 .cse16)) (.cse10 (not .cse4)) (.cse19 (< 11 ~a12~0)) (.cse0 (and .cse8 .cse20 .cse9 .cse16 .cse15))) (or (and (= 8 ~a21~0) .cse0) (and (<= ~a12~0 73282) (= ~a21~0 8) .cse1 .cse2) (not (= 7 |old(~a21~0)|)) (and (<= 9 ~a21~0) .cse3 .cse0) (and .cse4 (<= 518246 ~a12~0) .cse5 (= ~a24~0 |old(~a24~0)|)) (and .cse6 (and .cse7 .cse8 .cse9 .cse10)) (not (= 1 |old(~a24~0)|)) (and .cse11 .cse3) (and .cse12 .cse1) (and .cse9 .cse7 .cse13 .cse14 .cse15) (not .cse16) (and .cse11 .cse17) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse18 .cse9 .cse8 .cse17) (and (and .cse9 .cse8 .cse15) .cse1) (and (and .cse13 .cse12) .cse19) (and .cse13 .cse6 .cse2 .cse10) (and .cse19 (and (= 7 ~a21~0) .cse0)) (and .cse7 .cse8 .cse9 .cse15))))) [2018-11-18 10:55:34,104 INFO L425 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-18 10:55:34,104 INFO L425 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-18 10:55:34,105 INFO L425 ceAbstractionStarter]: For program point L880-1(lines 880 889) no Hoare annotation was computed. [2018-11-18 10:55:34,105 INFO L421 ceAbstractionStarter]: At program point L880-3(lines 880 889) the Hoare annotation is: (let ((.cse12 (not (= ~a15~0 6))) (.cse7 (not (= ~a15~0 9))) (.cse8 (= 1 ~a24~0)) (.cse9 (not (= ~a15~0 8))) (.cse13 (= 8 |old(~a15~0)|)) (.cse11 (<= ~a21~0 6)) (.cse14 (= 6 ~a21~0)) (.cse18 (<= 7 |old(~a21~0)|)) (.cse17 (= ~a15~0 |old(~a15~0)|))) (let ((.cse1 (and (not (= ~a21~0 0)) (= ~a24~0 1) .cse18 .cse17)) (.cse5 (not (= 10 ~a21~0))) (.cse6 (not .cse14)) (.cse2 (<= 12849 ~a12~0)) (.cse4 (<= ~a12~0 76)) (.cse10 (and .cse7 .cse8 .cse18 .cse9 .cse13 .cse11)) (.cse15 (= ~a21~0 10)) (.cse3 (< 80 ~a12~0)) (.cse16 (< 11 ~a12~0)) (.cse0 (and .cse8 .cse18 .cse9 .cse13 .cse12))) (or (and (= 8 ~a21~0) .cse0) (and (<= ~a12~0 73282) (and .cse1 (= ~a21~0 8)) .cse2) (not (= 7 |old(~a21~0)|)) (and (<= 9 ~a21~0) .cse3 .cse0) (and .cse4 .cse5 .cse1 .cse6) (and .cse5 (and .cse7 .cse8 .cse9 .cse6)) (not (= 1 |old(~a24~0)|)) (and .cse10 .cse2) (and .cse9 .cse7 .cse4 .cse11 .cse12) (not .cse13) (and .cse14 (<= 518246 ~a12~0) (= ~a24~0 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse15 .cse8 (<= ~a12~0 11)) (and (and .cse9 .cse8 .cse12) .cse2) (and (and .cse4 .cse10) .cse16) (and (and (and .cse15 .cse17) .cse8) .cse3) (and .cse16 (and (= 7 ~a21~0) .cse0)) (and .cse7 .cse8 .cse9 .cse12)))) [2018-11-18 10:55:34,105 INFO L425 ceAbstractionStarter]: For program point L880-4(lines 874 890) no Hoare annotation was computed. [2018-11-18 10:55:34,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:55:34 BoogieIcfgContainer [2018-11-18 10:55:34,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:55:34,121 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:55:34,121 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:55:34,121 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:55:34,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:43" (3/4) ... [2018-11-18 10:55:34,131 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:55:34,136 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:55:34,136 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 10:55:34,136 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:55:34,151 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 10:55:34,160 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 10:55:34,184 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((8 == a21 && (((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(a15 == 6)) || ((a12 <= 73282 && (((!(a21 == 0) && a24 == 1) && 7 <= \old(a21)) && a15 == \old(a15)) && a21 == 8) && 12849 <= a12)) || !(7 == \old(a21))) || ((9 <= a21 && 80 < a12) && (((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(a15 == 6))) || (((a12 <= 76 && !(10 == a21)) && ((!(a21 == 0) && a24 == 1) && 7 <= \old(a21)) && a15 == \old(a15)) && !(6 == a21))) || (!(10 == a21) && ((!(a15 == 9) && 1 == a24) && !(a15 == 8)) && !(6 == a21))) || !(1 == \old(a24))) || ((((((!(a15 == 9) && 1 == a24) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && a21 <= 6) && 12849 <= a12)) || ((((!(a15 == 8) && !(a15 == 9)) && a12 <= 76) && a21 <= 6) && !(a15 == 6))) || !(8 == \old(a15))) || ((6 == a21 && 518246 <= a12) && a24 == \old(a24))) || !(0 == \old(a12) + 49)) || ((a21 == 10 && 1 == a24) && a12 <= 11)) || (((!(a15 == 8) && 1 == a24) && !(a15 == 6)) && 12849 <= a12)) || ((a12 <= 76 && ((((!(a15 == 9) && 1 == a24) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && a21 <= 6) && 11 < a12)) || (((a21 == 10 && a15 == \old(a15)) && 1 == a24) && 80 < a12)) || (11 < a12 && 7 == a21 && (((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(a15 == 6))) || (((!(a15 == 9) && 1 == a24) && !(a15 == 8)) && !(a15 == 6)) [2018-11-18 10:55:34,275 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9846cd49-9f97-40b8-acbe-db46137ae27f/bin-2019/utaipan/witness.graphml [2018-11-18 10:55:34,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:55:34,276 INFO L168 Benchmark]: Toolchain (without parser) took 172263.31 ms. Allocated memory was 1.0 GB in the beginning and 5.0 GB in the end (delta: 4.0 GB). Free memory was 949.9 MB in the beginning and 4.6 GB in the end (delta: -3.7 GB). Peak memory consumption was 348.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:55:34,278 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:55:34,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.81 ms. Allocated memory is still 1.0 GB. Free memory was 949.9 MB in the beginning and 912.4 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:55:34,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 912.4 MB in the beginning and 1.1 GB in the end (delta: -234.7 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:55:34,278 INFO L168 Benchmark]: Boogie Preprocessor took 52.30 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:55:34,278 INFO L168 Benchmark]: RCFGBuilder took 1095.46 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: 127.2 MB). Peak memory consumption was 127.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:55:34,279 INFO L168 Benchmark]: TraceAbstraction took 170436.15 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 4.7 GB in the end (delta: -3.7 GB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. [2018-11-18 10:55:34,279 INFO L168 Benchmark]: Witness Printer took 154.64 ms. Allocated memory is still 5.0 GB. Free memory was 4.7 GB in the beginning and 4.6 GB in the end (delta: 81.7 MB). Peak memory consumption was 81.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:55:34,281 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 433.81 ms. Allocated memory is still 1.0 GB. Free memory was 949.9 MB in the beginning and 912.4 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 87.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 912.4 MB in the beginning and 1.1 GB in the end (delta: -234.7 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.30 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1095.46 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: 127.2 MB). Peak memory consumption was 127.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 170436.15 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 4.7 GB in the end (delta: -3.7 GB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. * Witness Printer took 154.64 ms. Allocated memory is still 5.0 GB. Free memory was 4.7 GB in the beginning and 4.6 GB in the end (delta: 81.7 MB). Peak memory consumption was 81.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: 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: 880]: Loop Invariant Derived loop invariant: (((((((((((((((((8 == a21 && (((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(a15 == 6)) || ((a12 <= 73282 && (((!(a21 == 0) && a24 == 1) && 7 <= \old(a21)) && a15 == \old(a15)) && a21 == 8) && 12849 <= a12)) || !(7 == \old(a21))) || ((9 <= a21 && 80 < a12) && (((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(a15 == 6))) || (((a12 <= 76 && !(10 == a21)) && ((!(a21 == 0) && a24 == 1) && 7 <= \old(a21)) && a15 == \old(a15)) && !(6 == a21))) || (!(10 == a21) && ((!(a15 == 9) && 1 == a24) && !(a15 == 8)) && !(6 == a21))) || !(1 == \old(a24))) || ((((((!(a15 == 9) && 1 == a24) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && a21 <= 6) && 12849 <= a12)) || ((((!(a15 == 8) && !(a15 == 9)) && a12 <= 76) && a21 <= 6) && !(a15 == 6))) || !(8 == \old(a15))) || ((6 == a21 && 518246 <= a12) && a24 == \old(a24))) || !(0 == \old(a12) + 49)) || ((a21 == 10 && 1 == a24) && a12 <= 11)) || (((!(a15 == 8) && 1 == a24) && !(a15 == 6)) && 12849 <= a12)) || ((a12 <= 76 && ((((!(a15 == 9) && 1 == a24) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && a21 <= 6) && 11 < a12)) || (((a21 == 10 && a15 == \old(a15)) && 1 == a24) && 80 < a12)) || (11 < a12 && 7 == a21 && (((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(a15 == 6))) || (((!(a15 == 9) && 1 == a24) && !(a15 == 8)) && !(a15 == 6)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. SAFE Result, 170.3s OverallTime, 17 OverallIterations, 12 TraceHistogramMax, 81.6s AutomataDifference, 0.0s DeadEndRemovalTime, 5.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 2177 SDtfs, 35814 SDslu, 3393 SDs, 0 SdLazy, 38393 SolverSat, 5696 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 63.9s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 17384 GetRequests, 16951 SyntacticMatches, 25 SemanticMatches, 408 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4721 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 54.3s AbstIntTime, 13 AbstIntIterations, 4 AbstIntStrong, 0.9970853425468233 AbsIntWeakeningRatio, 0.0936408106219427 AbsIntAvgWeakeningVarsNumRemoved, 15.908455625436758 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 3187 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 390 PreInvPairs, 536 NumberOfFragments, 1206 HoareAnnotationTreeSize, 390 FomulaSimplifications, 97099 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 105033 FormulaSimplificationTreeSizeReductionInter, 4.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 18662 NumberOfCodeBlocks, 18662 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 26326 ConstructedInterpolants, 0 QuantifiedInterpolants, 101033645 SizeOfPredicates, 21 NumberOfNonLiveVariables, 10985 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 35 InterpolantComputations, 4 PerfectInterpolantSequences, 63246/72614 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...