./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/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 6f9a2fcb1012f2ff72c6593976c4936a90359f50 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 07:44:33,055 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 07:44:33,056 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 07:44:33,062 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 07:44:33,062 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 07:44:33,062 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 07:44:33,063 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 07:44:33,064 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 07:44:33,064 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 07:44:33,065 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 07:44:33,065 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 07:44:33,065 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 07:44:33,066 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 07:44:33,066 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 07:44:33,067 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 07:44:33,067 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 07:44:33,067 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 07:44:33,068 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 07:44:33,069 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 07:44:33,070 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 07:44:33,070 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 07:44:33,071 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 07:44:33,072 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 07:44:33,072 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 07:44:33,072 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 07:44:33,072 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 07:44:33,073 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 07:44:33,073 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 07:44:33,074 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 07:44:33,074 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 07:44:33,074 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 07:44:33,075 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 07:44:33,075 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 07:44:33,075 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 07:44:33,075 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 07:44:33,076 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 07:44:33,076 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 07:44:33,083 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 07:44:33,083 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 07:44:33,083 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 07:44:33,083 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 07:44:33,083 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 07:44:33,083 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 07:44:33,084 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 07:44:33,084 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 07:44:33,084 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 07:44:33,084 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 07:44:33,084 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 07:44:33,084 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 07:44:33,084 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 07:44:33,084 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 07:44:33,085 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 07:44:33,085 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 07:44:33,085 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 07:44:33,085 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 07:44:33,085 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 07:44:33,085 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 07:44:33,085 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 07:44:33,085 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 07:44:33,085 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 07:44:33,085 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 07:44:33,085 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 07:44:33,085 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 07:44:33,086 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 07:44:33,086 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 07:44:33,086 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:44:33,086 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 07:44:33,086 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 07:44:33,086 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 07:44:33,086 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 07:44:33,086 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 07:44:33,086 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 07:44:33,086 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 07:44:33,086 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_05c55a03-bae2-4253-9efc-2f447e95577e/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 -> 6f9a2fcb1012f2ff72c6593976c4936a90359f50 [2018-12-03 07:44:33,103 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 07:44:33,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 07:44:33,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 07:44:33,113 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 07:44:33,113 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 07:44:33,113 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c [2018-12-03 07:44:33,148 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/data/691ab157e/c1dcb1cb7674476c919f4b8232f86b07/FLAG615d6e8ae [2018-12-03 07:44:33,604 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 07:44:33,605 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c [2018-12-03 07:44:33,612 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/data/691ab157e/c1dcb1cb7674476c919f4b8232f86b07/FLAG615d6e8ae [2018-12-03 07:44:33,621 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/data/691ab157e/c1dcb1cb7674476c919f4b8232f86b07 [2018-12-03 07:44:33,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 07:44:33,623 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 07:44:33,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 07:44:33,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 07:44:33,626 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 07:44:33,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:44:33" (1/1) ... [2018-12-03 07:44:33,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf0b28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:44:33, skipping insertion in model container [2018-12-03 07:44:33,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:44:33" (1/1) ... [2018-12-03 07:44:33,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 07:44:33,660 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 07:44:33,861 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:44:33,864 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 07:44:33,963 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:44:33,973 INFO L195 MainTranslator]: Completed translation [2018-12-03 07:44:33,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:44:33 WrapperNode [2018-12-03 07:44:33,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 07:44:33,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 07:44:33,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 07:44:33,974 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 07:44:33,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:44:33" (1/1) ... [2018-12-03 07:44:33,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:44:33" (1/1) ... [2018-12-03 07:44:33,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 07:44:33,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 07:44:33,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 07:44:33,995 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 07:44:34,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:44:33" (1/1) ... [2018-12-03 07:44:34,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:44:33" (1/1) ... [2018-12-03 07:44:34,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:44:33" (1/1) ... [2018-12-03 07:44:34,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:44:33" (1/1) ... [2018-12-03 07:44:34,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:44:33" (1/1) ... [2018-12-03 07:44:34,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:44:33" (1/1) ... [2018-12-03 07:44:34,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:44:33" (1/1) ... [2018-12-03 07:44:34,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 07:44:34,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 07:44:34,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 07:44:34,038 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 07:44:34,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:44:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:44:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 07:44:34,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 07:44:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-03 07:44:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-03 07:44:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 07:44:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 07:44:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 07:44:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 07:44:34,759 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 07:44:34,759 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 07:44:34,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:44:34 BoogieIcfgContainer [2018-12-03 07:44:34,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 07:44:34,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 07:44:34,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 07:44:34,763 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 07:44:34,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 07:44:33" (1/3) ... [2018-12-03 07:44:34,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdbb31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:44:34, skipping insertion in model container [2018-12-03 07:44:34,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:44:33" (2/3) ... [2018-12-03 07:44:34,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdbb31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:44:34, skipping insertion in model container [2018-12-03 07:44:34,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:44:34" (3/3) ... [2018-12-03 07:44:34,766 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label07_true-unreach-call_false-termination.c [2018-12-03 07:44:34,775 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 07:44:34,782 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 07:44:34,796 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 07:44:34,826 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 07:44:34,826 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 07:44:34,826 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 07:44:34,826 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 07:44:34,827 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 07:44:34,827 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 07:44:34,827 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 07:44:34,827 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 07:44:34,846 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-12-03 07:44:34,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-03 07:44:34,852 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:44:34,853 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:44:34,855 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:44:34,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:44:34,860 INFO L82 PathProgramCache]: Analyzing trace with hash 844393866, now seen corresponding path program 1 times [2018-12-03 07:44:34,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:44:34,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:44:34,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:44:34,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:44:34,899 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:44:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:44:35,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:44:35,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:44:35,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 07:44:35,034 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:44:35,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 07:44:35,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 07:44:35,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-03 07:44:35,047 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2018-12-03 07:44:35,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:44:35,980 INFO L93 Difference]: Finished difference Result 890 states and 1606 transitions. [2018-12-03 07:44:35,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 07:44:35,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2018-12-03 07:44:35,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:44:35,994 INFO L225 Difference]: With dead ends: 890 [2018-12-03 07:44:35,994 INFO L226 Difference]: Without dead ends: 554 [2018-12-03 07:44:35,999 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-03 07:44:36,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-12-03 07:44:36,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 372. [2018-12-03 07:44:36,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-12-03 07:44:36,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 524 transitions. [2018-12-03 07:44:36,045 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 524 transitions. Word has length 53 [2018-12-03 07:44:36,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:44:36,045 INFO L480 AbstractCegarLoop]: Abstraction has 372 states and 524 transitions. [2018-12-03 07:44:36,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 07:44:36,045 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 524 transitions. [2018-12-03 07:44:36,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-03 07:44:36,049 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:44:36,049 INFO L402 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, 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] [2018-12-03 07:44:36,049 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:44:36,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:44:36,050 INFO L82 PathProgramCache]: Analyzing trace with hash -678591331, now seen corresponding path program 1 times [2018-12-03 07:44:36,050 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:44:36,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:44:36,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:44:36,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:44:36,051 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:44:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:44:36,149 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:44:36,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:44:36,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 07:44:36,149 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:44:36,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 07:44:36,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 07:44:36,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-03 07:44:36,151 INFO L87 Difference]: Start difference. First operand 372 states and 524 transitions. Second operand 4 states. [2018-12-03 07:44:36,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:44:36,772 INFO L93 Difference]: Finished difference Result 1466 states and 2090 transitions. [2018-12-03 07:44:36,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 07:44:36,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 136 [2018-12-03 07:44:36,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:44:36,776 INFO L225 Difference]: With dead ends: 1466 [2018-12-03 07:44:36,776 INFO L226 Difference]: Without dead ends: 736 [2018-12-03 07:44:36,777 INFO L631 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 [2018-12-03 07:44:36,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2018-12-03 07:44:36,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 554. [2018-12-03 07:44:36,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-12-03 07:44:36,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 808 transitions. [2018-12-03 07:44:36,791 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 808 transitions. Word has length 136 [2018-12-03 07:44:36,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:44:36,792 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 808 transitions. [2018-12-03 07:44:36,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 07:44:36,792 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 808 transitions. [2018-12-03 07:44:36,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-12-03 07:44:36,794 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:44:36,794 INFO L402 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:44:36,794 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:44:36,795 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:44:36,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1936926174, now seen corresponding path program 1 times [2018-12-03 07:44:36,795 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:44:36,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:44:36,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:44:36,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:44:36,795 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:44:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:44:36,885 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-12-03 07:44:36,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:44:36,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 07:44:36,885 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:44:36,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 07:44:36,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 07:44:36,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-03 07:44:36,886 INFO L87 Difference]: Start difference. First operand 554 states and 808 transitions. Second operand 4 states. [2018-12-03 07:44:37,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:44:37,586 INFO L93 Difference]: Finished difference Result 2194 states and 3267 transitions. [2018-12-03 07:44:37,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 07:44:37,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 221 [2018-12-03 07:44:37,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:44:37,594 INFO L225 Difference]: With dead ends: 2194 [2018-12-03 07:44:37,594 INFO L226 Difference]: Without dead ends: 1646 [2018-12-03 07:44:37,596 INFO L631 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 [2018-12-03 07:44:37,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2018-12-03 07:44:37,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1646. [2018-12-03 07:44:37,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-12-03 07:44:37,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2269 transitions. [2018-12-03 07:44:37,630 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2269 transitions. Word has length 221 [2018-12-03 07:44:37,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:44:37,630 INFO L480 AbstractCegarLoop]: Abstraction has 1646 states and 2269 transitions. [2018-12-03 07:44:37,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 07:44:37,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2269 transitions. [2018-12-03 07:44:37,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-12-03 07:44:37,636 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:44:37,636 INFO L402 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, 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, 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] [2018-12-03 07:44:37,636 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:44:37,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:44:37,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1963321077, now seen corresponding path program 1 times [2018-12-03 07:44:37,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:44:37,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:44:37,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:44:37,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:44:37,638 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:44:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:44:37,868 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 92 proven. 108 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-03 07:44:37,869 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:44:37,869 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:44:37,869 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 317 with the following transitions: [2018-12-03 07:44:37,871 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [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], [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], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:44:37,898 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:44:37,898 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:44:39,674 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 07:44:39,675 INFO L272 AbstractInterpreter]: Visited 156 different actions 156 times. Never merged. Never widened. Performed 1514 root evaluator evaluations with a maximum evaluation depth of 22. Performed 1514 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Never found a fixpoint. Largest state had 24 variables. [2018-12-03 07:44:39,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:44:39,685 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 07:44:41,320 INFO L227 lantSequenceWeakener]: Weakened 307 states. On average, predicates are now at 77.8% of their original sizes. [2018-12-03 07:44:41,321 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 07:44:41,348 INFO L418 sIntCurrentIteration]: We unified 315 AI predicates to 315 [2018-12-03 07:44:41,348 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 07:44:41,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 07:44:41,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-12-03 07:44:41,349 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:44:41,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 07:44:41,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 07:44:41,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-03 07:44:41,350 INFO L87 Difference]: Start difference. First operand 1646 states and 2269 transitions. Second operand 6 states. [2018-12-03 07:44:45,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:44:45,277 INFO L93 Difference]: Finished difference Result 3469 states and 4758 transitions. [2018-12-03 07:44:45,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 07:44:45,278 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 316 [2018-12-03 07:44:45,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:44:45,284 INFO L225 Difference]: With dead ends: 3469 [2018-12-03 07:44:45,284 INFO L226 Difference]: Without dead ends: 1829 [2018-12-03 07:44:45,287 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 316 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-03 07:44:45,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2018-12-03 07:44:45,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1828. [2018-12-03 07:44:45,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2018-12-03 07:44:45,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2459 transitions. [2018-12-03 07:44:45,320 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2459 transitions. Word has length 316 [2018-12-03 07:44:45,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:44:45,321 INFO L480 AbstractCegarLoop]: Abstraction has 1828 states and 2459 transitions. [2018-12-03 07:44:45,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 07:44:45,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2459 transitions. [2018-12-03 07:44:45,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-12-03 07:44:45,325 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:44:45,326 INFO L402 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2018-12-03 07:44:45,326 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:44:45,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:44:45,326 INFO L82 PathProgramCache]: Analyzing trace with hash -496552707, now seen corresponding path program 1 times [2018-12-03 07:44:45,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:44:45,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:44:45,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:44:45,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:44:45,327 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:44:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:44:45,832 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 224 proven. 190 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-03 07:44:45,832 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:44:45,832 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:44:45,832 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 401 with the following transitions: [2018-12-03 07:44:45,833 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [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], [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], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:44:45,837 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:44:45,837 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:44:48,756 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 07:44:48,756 INFO L272 AbstractInterpreter]: Visited 160 different actions 313 times. Merged at 3 different actions 3 times. Never widened. Performed 3148 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3148 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-03 07:44:48,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:44:48,768 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 07:44:50,297 INFO L227 lantSequenceWeakener]: Weakened 397 states. On average, predicates are now at 77.72% of their original sizes. [2018-12-03 07:44:50,297 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 07:44:50,339 INFO L418 sIntCurrentIteration]: We unified 399 AI predicates to 399 [2018-12-03 07:44:50,340 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 07:44:50,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 07:44:50,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-12-03 07:44:50,340 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:44:50,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 07:44:50,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 07:44:50,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-03 07:44:50,341 INFO L87 Difference]: Start difference. First operand 1828 states and 2459 transitions. Second operand 10 states. [2018-12-03 07:45:16,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:45:16,879 INFO L93 Difference]: Finished difference Result 3866 states and 5190 transitions. [2018-12-03 07:45:16,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-03 07:45:16,880 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 400 [2018-12-03 07:45:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:45:16,885 INFO L225 Difference]: With dead ends: 3866 [2018-12-03 07:45:16,885 INFO L226 Difference]: Without dead ends: 2011 [2018-12-03 07:45:16,888 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 408 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-03 07:45:16,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2018-12-03 07:45:16,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 2010. [2018-12-03 07:45:16,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2010 states. [2018-12-03 07:45:16,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 2652 transitions. [2018-12-03 07:45:16,930 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 2652 transitions. Word has length 400 [2018-12-03 07:45:16,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:45:16,930 INFO L480 AbstractCegarLoop]: Abstraction has 2010 states and 2652 transitions. [2018-12-03 07:45:16,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 07:45:16,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 2652 transitions. [2018-12-03 07:45:16,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2018-12-03 07:45:16,940 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:45:16,940 INFO L402 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:45:16,941 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:45:16,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:45:16,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1415948862, now seen corresponding path program 1 times [2018-12-03 07:45:16,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:45:16,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:45:16,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:45:16,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:45:16,942 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:45:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:45:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 377 proven. 250 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-12-03 07:45:17,497 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:45:17,497 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:45:17,497 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 500 with the following transitions: [2018-12-03 07:45:17,498 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [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], [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], [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], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:45:17,501 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:45:17,502 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:45:20,211 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 07:45:20,211 INFO L272 AbstractInterpreter]: Visited 161 different actions 316 times. Merged at 4 different actions 4 times. Never widened. Performed 3130 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3130 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-03 07:45:20,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:45:20,213 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 07:45:21,734 INFO L227 lantSequenceWeakener]: Weakened 496 states. On average, predicates are now at 77.65% of their original sizes. [2018-12-03 07:45:21,734 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 07:45:21,787 INFO L418 sIntCurrentIteration]: We unified 498 AI predicates to 498 [2018-12-03 07:45:21,787 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 07:45:21,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 07:45:21,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-12-03 07:45:21,787 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:45:21,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 07:45:21,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 07:45:21,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-03 07:45:21,788 INFO L87 Difference]: Start difference. First operand 2010 states and 2652 transitions. Second operand 10 states. [2018-12-03 07:45:31,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:45:31,384 INFO L93 Difference]: Finished difference Result 3836 states and 5120 transitions. [2018-12-03 07:45:31,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-03 07:45:31,385 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 499 [2018-12-03 07:45:31,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:45:31,389 INFO L225 Difference]: With dead ends: 3836 [2018-12-03 07:45:31,389 INFO L226 Difference]: Without dead ends: 2014 [2018-12-03 07:45:31,392 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 506 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-03 07:45:31,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2018-12-03 07:45:31,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2012. [2018-12-03 07:45:31,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2012 states. [2018-12-03 07:45:31,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 2640 transitions. [2018-12-03 07:45:31,428 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 2640 transitions. Word has length 499 [2018-12-03 07:45:31,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:45:31,429 INFO L480 AbstractCegarLoop]: Abstraction has 2012 states and 2640 transitions. [2018-12-03 07:45:31,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 07:45:31,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 2640 transitions. [2018-12-03 07:45:31,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2018-12-03 07:45:31,440 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:45:31,440 INFO L402 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:45:31,440 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:45:31,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:45:31,441 INFO L82 PathProgramCache]: Analyzing trace with hash -602196651, now seen corresponding path program 1 times [2018-12-03 07:45:31,441 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:45:31,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:45:31,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:45:31,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:45:31,442 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:45:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:45:31,692 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 328 proven. 285 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-12-03 07:45:31,693 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:45:31,693 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:45:31,693 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 503 with the following transitions: [2018-12-03 07:45:31,693 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [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], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:45:31,695 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:45:31,695 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:45:35,112 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 07:45:35,112 INFO L272 AbstractInterpreter]: Visited 161 different actions 476 times. Merged at 6 different actions 13 times. Never widened. Performed 4874 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4874 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-03 07:45:35,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:45:35,114 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 07:45:35,777 INFO L227 lantSequenceWeakener]: Weakened 499 states. On average, predicates are now at 80.31% of their original sizes. [2018-12-03 07:45:35,777 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 07:45:35,811 INFO L418 sIntCurrentIteration]: We unified 501 AI predicates to 501 [2018-12-03 07:45:35,812 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 07:45:35,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 07:45:35,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-12-03 07:45:35,812 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:45:35,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 07:45:35,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 07:45:35,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-03 07:45:35,813 INFO L87 Difference]: Start difference. First operand 2012 states and 2640 transitions. Second operand 9 states. [2018-12-03 07:45:46,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:45:46,607 INFO L93 Difference]: Finished difference Result 4407 states and 6011 transitions. [2018-12-03 07:45:46,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-03 07:45:46,607 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 502 [2018-12-03 07:45:46,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:45:46,613 INFO L225 Difference]: With dead ends: 4407 [2018-12-03 07:45:46,613 INFO L226 Difference]: Without dead ends: 2767 [2018-12-03 07:45:46,616 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 508 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-12-03 07:45:46,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2018-12-03 07:45:46,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2754. [2018-12-03 07:45:46,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2754 states. [2018-12-03 07:45:46,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 3581 transitions. [2018-12-03 07:45:46,661 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 3581 transitions. Word has length 502 [2018-12-03 07:45:46,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:45:46,662 INFO L480 AbstractCegarLoop]: Abstraction has 2754 states and 3581 transitions. [2018-12-03 07:45:46,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 07:45:46,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 3581 transitions. [2018-12-03 07:45:46,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2018-12-03 07:45:46,669 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:45:46,669 INFO L402 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, 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, 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, 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] [2018-12-03 07:45:46,670 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:45:46,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:45:46,670 INFO L82 PathProgramCache]: Analyzing trace with hash 843801242, now seen corresponding path program 1 times [2018-12-03 07:45:46,670 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:45:46,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:45:46,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:45:46,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:45:46,671 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:45:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:45:47,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 541 proven. 458 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-12-03 07:45:47,318 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:45:47,318 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:45:47,319 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 608 with the following transitions: [2018-12-03 07:45:47,319 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [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], [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], [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], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:45:47,321 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:45:47,321 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:45:54,421 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:45:54,421 INFO L272 AbstractInterpreter]: Visited 163 different actions 643 times. Merged at 7 different actions 24 times. Never widened. Performed 6821 root evaluator evaluations with a maximum evaluation depth of 22. Performed 6821 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-03 07:45:54,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:45:54,424 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:45:54,424 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:45:54,424 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/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 [2018-12-03 07:45:54,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:45:54,430 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:45:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:45:54,526 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:45:54,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 881 proven. 2 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2018-12-03 07:45:54,832 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:45:55,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 537 proven. 112 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2018-12-03 07:45:55,208 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:45:55,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-12-03 07:45:55,208 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:45:55,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-03 07:45:55,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-03 07:45:55,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-12-03 07:45:55,209 INFO L87 Difference]: Start difference. First operand 2754 states and 3581 transitions. Second operand 17 states. [2018-12-03 07:45:57,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:45:57,767 INFO L93 Difference]: Finished difference Result 5514 states and 7395 transitions. [2018-12-03 07:45:57,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-12-03 07:45:57,768 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 607 [2018-12-03 07:45:57,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:45:57,774 INFO L225 Difference]: With dead ends: 5514 [2018-12-03 07:45:57,774 INFO L226 Difference]: Without dead ends: 2947 [2018-12-03 07:45:57,778 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1262 GetRequests, 1220 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=430, Invalid=1376, Unknown=0, NotChecked=0, Total=1806 [2018-12-03 07:45:57,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2018-12-03 07:45:57,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 2432. [2018-12-03 07:45:57,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2432 states. [2018-12-03 07:45:57,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 2702 transitions. [2018-12-03 07:45:57,813 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 2702 transitions. Word has length 607 [2018-12-03 07:45:57,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:45:57,813 INFO L480 AbstractCegarLoop]: Abstraction has 2432 states and 2702 transitions. [2018-12-03 07:45:57,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-03 07:45:57,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 2702 transitions. [2018-12-03 07:45:57,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2018-12-03 07:45:57,817 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:45:57,817 INFO L402 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:45:57,817 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:45:57,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:45:57,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1294933294, now seen corresponding path program 1 times [2018-12-03 07:45:57,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:45:57,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:45:57,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:45:57,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:45:57,818 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:45:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:45:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 467 proven. 513 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-12-03 07:45:58,554 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:45:58,554 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:45:58,554 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 682 with the following transitions: [2018-12-03 07:45:58,555 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [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], [822], [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], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:45:58,557 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:45:58,557 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:46:02,471 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:46:02,471 INFO L272 AbstractInterpreter]: Visited 191 different actions 761 times. Merged at 9 different actions 30 times. Widened at 1 different actions 1 times. Performed 8322 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8322 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-03 07:46:02,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:02,473 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:46:02,473 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:02,473 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/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 [2018-12-03 07:46:02,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:02,479 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:46:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:02,554 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:46:02,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 963 proven. 2 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2018-12-03 07:46:02,768 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:46:03,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 466 proven. 228 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2018-12-03 07:46:03,164 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:46:03,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 20 [2018-12-03 07:46:03,165 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:46:03,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-03 07:46:03,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-03 07:46:03,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2018-12-03 07:46:03,166 INFO L87 Difference]: Start difference. First operand 2432 states and 2702 transitions. Second operand 17 states. [2018-12-03 07:46:05,319 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2018-12-03 07:46:05,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:46:05,893 INFO L93 Difference]: Finished difference Result 4956 states and 5778 transitions. [2018-12-03 07:46:05,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-03 07:46:05,893 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 681 [2018-12-03 07:46:05,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:46:05,899 INFO L225 Difference]: With dead ends: 4956 [2018-12-03 07:46:05,899 INFO L226 Difference]: Without dead ends: 2896 [2018-12-03 07:46:05,902 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1434 GetRequests, 1382 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=595, Invalid=2267, Unknown=0, NotChecked=0, Total=2862 [2018-12-03 07:46:05,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2018-12-03 07:46:05,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 2824. [2018-12-03 07:46:05,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2824 states. [2018-12-03 07:46:05,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2824 states to 2824 states and 3157 transitions. [2018-12-03 07:46:05,939 INFO L78 Accepts]: Start accepts. Automaton has 2824 states and 3157 transitions. Word has length 681 [2018-12-03 07:46:05,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:46:05,939 INFO L480 AbstractCegarLoop]: Abstraction has 2824 states and 3157 transitions. [2018-12-03 07:46:05,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-03 07:46:05,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2824 states and 3157 transitions. [2018-12-03 07:46:05,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2018-12-03 07:46:05,944 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:46:05,944 INFO L402 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:46:05,944 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:46:05,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:05,945 INFO L82 PathProgramCache]: Analyzing trace with hash 2003215569, now seen corresponding path program 1 times [2018-12-03 07:46:05,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:46:05,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:05,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:05,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:05,945 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:46:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:06,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 640 proven. 228 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2018-12-03 07:46:06,271 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:06,271 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:46:06,272 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 799 with the following transitions: [2018-12-03 07:46:06,272 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [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], [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], [822], [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], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:46:06,273 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:46:06,273 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:46:10,177 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:46:10,177 INFO L272 AbstractInterpreter]: Visited 192 different actions 771 times. Merged at 10 different actions 36 times. Widened at 1 different actions 2 times. Performed 8491 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8491 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-03 07:46:10,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:10,179 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:46:10,179 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:10,179 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/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 [2018-12-03 07:46:10,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:10,185 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:46:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:10,277 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:46:10,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 1325 proven. 2 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-12-03 07:46:10,442 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:46:10,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 640 proven. 228 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2018-12-03 07:46:10,753 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:46:10,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-12-03 07:46:10,754 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:46:10,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 07:46:10,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 07:46:10,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-03 07:46:10,755 INFO L87 Difference]: Start difference. First operand 2824 states and 3157 transitions. Second operand 7 states. [2018-12-03 07:46:11,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:46:11,591 INFO L93 Difference]: Finished difference Result 6730 states and 8397 transitions. [2018-12-03 07:46:11,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-03 07:46:11,591 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 798 [2018-12-03 07:46:11,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:46:11,601 INFO L225 Difference]: With dead ends: 6730 [2018-12-03 07:46:11,601 INFO L226 Difference]: Without dead ends: 4278 [2018-12-03 07:46:11,605 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1612 GetRequests, 1598 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-12-03 07:46:11,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4278 states. [2018-12-03 07:46:11,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4278 to 4142. [2018-12-03 07:46:11,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4142 states. [2018-12-03 07:46:11,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4142 states to 4142 states and 4753 transitions. [2018-12-03 07:46:11,660 INFO L78 Accepts]: Start accepts. Automaton has 4142 states and 4753 transitions. Word has length 798 [2018-12-03 07:46:11,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:46:11,661 INFO L480 AbstractCegarLoop]: Abstraction has 4142 states and 4753 transitions. [2018-12-03 07:46:11,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 07:46:11,661 INFO L276 IsEmpty]: Start isEmpty. Operand 4142 states and 4753 transitions. [2018-12-03 07:46:11,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2018-12-03 07:46:11,667 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:46:11,667 INFO L402 BasicCegarLoop]: trace histogram [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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:46:11,667 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:46:11,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:11,667 INFO L82 PathProgramCache]: Analyzing trace with hash 304342525, now seen corresponding path program 1 times [2018-12-03 07:46:11,667 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:46:11,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:11,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:11,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:11,668 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:46:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:12,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 695 proven. 1124 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2018-12-03 07:46:12,792 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:12,792 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:46:12,792 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 925 with the following transitions: [2018-12-03 07:46:12,792 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [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], [750], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [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], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:46:12,794 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:46:12,794 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:46:16,691 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:46:16,691 INFO L272 AbstractInterpreter]: Visited 192 different actions 770 times. Merged at 10 different actions 35 times. Widened at 1 different actions 2 times. Performed 8447 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8447 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-03 07:46:16,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:16,693 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:46:16,693 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:16,693 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/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 [2018-12-03 07:46:16,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:16,699 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:46:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:16,795 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:46:17,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1705 proven. 2 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2018-12-03 07:46:17,204 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:46:17,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 823 proven. 228 refuted. 0 times theorem prover too weak. 1477 trivial. 0 not checked. [2018-12-03 07:46:17,656 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:46:17,656 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 20 [2018-12-03 07:46:17,656 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:46:17,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-03 07:46:17,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-03 07:46:17,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2018-12-03 07:46:17,657 INFO L87 Difference]: Start difference. First operand 4142 states and 4753 transitions. Second operand 18 states. [2018-12-03 07:46:20,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:46:20,585 INFO L93 Difference]: Finished difference Result 9088 states and 10632 transitions. [2018-12-03 07:46:20,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-12-03 07:46:20,586 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 924 [2018-12-03 07:46:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:46:20,596 INFO L225 Difference]: With dead ends: 9088 [2018-12-03 07:46:20,596 INFO L226 Difference]: Without dead ends: 5134 [2018-12-03 07:46:20,602 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1936 GetRequests, 1872 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1137 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=808, Invalid=3352, Unknown=0, NotChecked=0, Total=4160 [2018-12-03 07:46:20,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5134 states. [2018-12-03 07:46:20,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5134 to 4904. [2018-12-03 07:46:20,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4904 states. [2018-12-03 07:46:20,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4904 states to 4904 states and 5636 transitions. [2018-12-03 07:46:20,657 INFO L78 Accepts]: Start accepts. Automaton has 4904 states and 5636 transitions. Word has length 924 [2018-12-03 07:46:20,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:46:20,658 INFO L480 AbstractCegarLoop]: Abstraction has 4904 states and 5636 transitions. [2018-12-03 07:46:20,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-03 07:46:20,658 INFO L276 IsEmpty]: Start isEmpty. Operand 4904 states and 5636 transitions. [2018-12-03 07:46:20,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2018-12-03 07:46:20,664 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:46:20,664 INFO L402 BasicCegarLoop]: trace histogram [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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:46:20,664 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:46:20,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:20,665 INFO L82 PathProgramCache]: Analyzing trace with hash 269621054, now seen corresponding path program 1 times [2018-12-03 07:46:20,665 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:46:20,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:20,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:20,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:20,665 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:46:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:21,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 856 proven. 228 refuted. 0 times theorem prover too weak. 1509 trivial. 0 not checked. [2018-12-03 07:46:21,092 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:21,092 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:46:21,092 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 958 with the following transitions: [2018-12-03 07:46:21,092 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [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], [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], [822], [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], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:46:21,094 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:46:21,094 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:46:25,003 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:46:25,003 INFO L272 AbstractInterpreter]: Visited 193 different actions 775 times. Merged at 10 different actions 36 times. Widened at 1 different actions 1 times. Performed 8503 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8503 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 12 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-03 07:46:25,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:25,005 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:46:25,005 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:25,005 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/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 [2018-12-03 07:46:25,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:25,012 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:46:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:25,107 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:46:25,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 1763 proven. 2 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2018-12-03 07:46:25,337 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:46:25,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 856 proven. 228 refuted. 0 times theorem prover too weak. 1509 trivial. 0 not checked. [2018-12-03 07:46:25,721 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:46:25,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-12-03 07:46:25,721 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:46:25,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 07:46:25,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 07:46:25,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-03 07:46:25,722 INFO L87 Difference]: Start difference. First operand 4904 states and 5636 transitions. Second operand 7 states. [2018-12-03 07:46:26,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:46:26,238 INFO L93 Difference]: Finished difference Result 9788 states and 11339 transitions. [2018-12-03 07:46:26,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-03 07:46:26,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 957 [2018-12-03 07:46:26,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:46:26,249 INFO L225 Difference]: With dead ends: 9788 [2018-12-03 07:46:26,249 INFO L226 Difference]: Without dead ends: 5074 [2018-12-03 07:46:26,253 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1930 GetRequests, 1916 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-12-03 07:46:26,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5074 states. [2018-12-03 07:46:26,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5074 to 5050. [2018-12-03 07:46:26,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5050 states. [2018-12-03 07:46:26,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5050 states to 5050 states and 5713 transitions. [2018-12-03 07:46:26,300 INFO L78 Accepts]: Start accepts. Automaton has 5050 states and 5713 transitions. Word has length 957 [2018-12-03 07:46:26,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:46:26,301 INFO L480 AbstractCegarLoop]: Abstraction has 5050 states and 5713 transitions. [2018-12-03 07:46:26,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 07:46:26,301 INFO L276 IsEmpty]: Start isEmpty. Operand 5050 states and 5713 transitions. [2018-12-03 07:46:26,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1052 [2018-12-03 07:46:26,307 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:46:26,307 INFO L402 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, 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, 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, 5, 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, 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] [2018-12-03 07:46:26,308 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:46:26,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:26,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1368623598, now seen corresponding path program 1 times [2018-12-03 07:46:26,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:46:26,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:26,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:26,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:26,309 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:46:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:27,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3189 backedges. 753 proven. 1425 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2018-12-03 07:46:27,812 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:27,812 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:46:27,812 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1052 with the following transitions: [2018-12-03 07:46:27,812 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [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], [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], [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], [822], [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], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:46:27,814 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:46:27,814 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:46:31,718 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:46:31,718 INFO L272 AbstractInterpreter]: Visited 194 different actions 776 times. Merged at 9 different actions 33 times. Widened at 1 different actions 1 times. Performed 8589 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8589 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 14 fixpoints after 7 different actions. Largest state had 24 variables. [2018-12-03 07:46:31,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:31,720 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:46:31,720 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:31,720 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/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 [2018-12-03 07:46:31,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:31,726 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:46:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:31,834 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:46:32,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3189 backedges. 2140 proven. 2 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2018-12-03 07:46:32,143 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:46:32,733 INFO L134 CoverageAnalysis]: Checked inductivity of 3189 backedges. 756 proven. 477 refuted. 0 times theorem prover too weak. 1956 trivial. 0 not checked. [2018-12-03 07:46:32,748 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:46:32,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 20 [2018-12-03 07:46:32,748 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:46:32,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-03 07:46:32,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-03 07:46:32,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-12-03 07:46:32,749 INFO L87 Difference]: Start difference. First operand 5050 states and 5713 transitions. Second operand 18 states. [2018-12-03 07:46:36,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:46:36,223 INFO L93 Difference]: Finished difference Result 9954 states and 11335 transitions. [2018-12-03 07:46:36,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-12-03 07:46:36,223 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1051 [2018-12-03 07:46:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:46:36,231 INFO L225 Difference]: With dead ends: 9954 [2018-12-03 07:46:36,231 INFO L226 Difference]: Without dead ends: 5094 [2018-12-03 07:46:36,236 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2180 GetRequests, 2122 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=704, Invalid=2836, Unknown=0, NotChecked=0, Total=3540 [2018-12-03 07:46:36,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5094 states. [2018-12-03 07:46:36,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5094 to 5052. [2018-12-03 07:46:36,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5052 states. [2018-12-03 07:46:36,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5052 states to 5052 states and 5554 transitions. [2018-12-03 07:46:36,287 INFO L78 Accepts]: Start accepts. Automaton has 5052 states and 5554 transitions. Word has length 1051 [2018-12-03 07:46:36,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:46:36,287 INFO L480 AbstractCegarLoop]: Abstraction has 5052 states and 5554 transitions. [2018-12-03 07:46:36,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-03 07:46:36,287 INFO L276 IsEmpty]: Start isEmpty. Operand 5052 states and 5554 transitions. [2018-12-03 07:46:36,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1133 [2018-12-03 07:46:36,295 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:46:36,295 INFO L402 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, 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, 8, 8, 8, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:46:36,295 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:46:36,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:36,295 INFO L82 PathProgramCache]: Analyzing trace with hash 642765001, now seen corresponding path program 1 times [2018-12-03 07:46:36,295 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:46:36,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:36,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:36,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:36,296 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:46:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:36,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 1598 proven. 230 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2018-12-03 07:46:36,800 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:36,800 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:46:36,800 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1133 with the following transitions: [2018-12-03 07:46:36,801 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [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], [534], [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], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [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], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:46:36,802 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:46:36,802 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:46:40,715 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:46:40,715 INFO L272 AbstractInterpreter]: Visited 195 different actions 779 times. Merged at 11 different actions 32 times. Never widened. Performed 8569 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8569 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 7 different actions. Largest state had 24 variables. [2018-12-03 07:46:40,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:40,716 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:46:40,717 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:40,717 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/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 [2018-12-03 07:46:40,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:40,723 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:46:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:40,844 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:46:41,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 2397 proven. 6 refuted. 0 times theorem prover too weak. 1473 trivial. 0 not checked. [2018-12-03 07:46:41,238 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:46:41,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 1598 proven. 303 refuted. 0 times theorem prover too weak. 1975 trivial. 0 not checked. [2018-12-03 07:46:41,827 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:46:41,827 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-12-03 07:46:41,828 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:46:41,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 07:46:41,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 07:46:41,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2018-12-03 07:46:41,828 INFO L87 Difference]: Start difference. First operand 5052 states and 5554 transitions. Second operand 9 states. [2018-12-03 07:46:42,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:46:42,639 INFO L93 Difference]: Finished difference Result 11404 states and 12686 transitions. [2018-12-03 07:46:42,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-03 07:46:42,640 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1132 [2018-12-03 07:46:42,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:46:42,648 INFO L225 Difference]: With dead ends: 11404 [2018-12-03 07:46:42,648 INFO L226 Difference]: Without dead ends: 6542 [2018-12-03 07:46:42,653 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2281 GetRequests, 2262 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2018-12-03 07:46:42,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6542 states. [2018-12-03 07:46:42,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6542 to 6162. [2018-12-03 07:46:42,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6162 states. [2018-12-03 07:46:42,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6162 states to 6162 states and 6876 transitions. [2018-12-03 07:46:42,713 INFO L78 Accepts]: Start accepts. Automaton has 6162 states and 6876 transitions. Word has length 1132 [2018-12-03 07:46:42,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:46:42,714 INFO L480 AbstractCegarLoop]: Abstraction has 6162 states and 6876 transitions. [2018-12-03 07:46:42,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 07:46:42,714 INFO L276 IsEmpty]: Start isEmpty. Operand 6162 states and 6876 transitions. [2018-12-03 07:46:42,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1166 [2018-12-03 07:46:42,721 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:46:42,722 INFO L402 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, 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, 8, 8, 8, 8, 8, 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, 5, 5, 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, 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] [2018-12-03 07:46:42,722 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:46:42,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:42,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1666228294, now seen corresponding path program 1 times [2018-12-03 07:46:42,722 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:46:42,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:42,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:42,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:42,723 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:46:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:44,637 INFO L134 CoverageAnalysis]: Checked inductivity of 4071 backedges. 1172 proven. 1917 refuted. 0 times theorem prover too weak. 982 trivial. 0 not checked. [2018-12-03 07:46:44,637 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:44,637 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:46:44,637 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1166 with the following transitions: [2018-12-03 07:46:44,638 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [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], [666], [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], [822], [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], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:46:44,639 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:46:44,639 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:46:51,660 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:46:51,660 INFO L272 AbstractInterpreter]: Visited 195 different actions 775 times. Merged at 10 different actions 28 times. Never widened. Performed 8607 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8607 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 16 fixpoints after 7 different actions. Largest state had 24 variables. [2018-12-03 07:46:51,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:51,662 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:46:51,662 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:51,662 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/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 [2018-12-03 07:46:51,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:51,668 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:46:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:51,784 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:46:52,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4071 backedges. 2002 proven. 2 refuted. 0 times theorem prover too weak. 2067 trivial. 0 not checked. [2018-12-03 07:46:52,121 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:46:52,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4071 backedges. 1170 proven. 112 refuted. 0 times theorem prover too weak. 2789 trivial. 0 not checked. [2018-12-03 07:46:52,702 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:46:52,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 19 [2018-12-03 07:46:52,703 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:46:52,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-03 07:46:52,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-03 07:46:52,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2018-12-03 07:46:52,704 INFO L87 Difference]: Start difference. First operand 6162 states and 6876 transitions. Second operand 18 states. [2018-12-03 07:46:56,183 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2018-12-03 07:46:57,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:46:57,261 INFO L93 Difference]: Finished difference Result 12204 states and 13675 transitions. [2018-12-03 07:46:57,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-03 07:46:57,263 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1165 [2018-12-03 07:46:57,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:46:57,289 INFO L225 Difference]: With dead ends: 12204 [2018-12-03 07:46:57,289 INFO L226 Difference]: Without dead ends: 6232 [2018-12-03 07:46:57,299 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2408 GetRequests, 2356 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=496, Invalid=1954, Unknown=0, NotChecked=0, Total=2450 [2018-12-03 07:46:57,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6232 states. [2018-12-03 07:46:57,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6232 to 6172. [2018-12-03 07:46:57,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6172 states. [2018-12-03 07:46:57,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6172 states to 6172 states and 6720 transitions. [2018-12-03 07:46:57,358 INFO L78 Accepts]: Start accepts. Automaton has 6172 states and 6720 transitions. Word has length 1165 [2018-12-03 07:46:57,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:46:57,358 INFO L480 AbstractCegarLoop]: Abstraction has 6172 states and 6720 transitions. [2018-12-03 07:46:57,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-03 07:46:57,359 INFO L276 IsEmpty]: Start isEmpty. Operand 6172 states and 6720 transitions. [2018-12-03 07:46:57,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1284 [2018-12-03 07:46:57,367 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:46:57,367 INFO L402 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, 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, 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, 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, 2, 2, 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] [2018-12-03 07:46:57,367 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:46:57,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:46:57,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1227148822, now seen corresponding path program 1 times [2018-12-03 07:46:57,368 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:46:57,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:57,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:46:57,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:46:57,368 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:46:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:46:58,730 INFO L134 CoverageAnalysis]: Checked inductivity of 5076 backedges. 1326 proven. 937 refuted. 0 times theorem prover too weak. 2813 trivial. 0 not checked. [2018-12-03 07:46:58,730 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:46:58,730 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:46:58,730 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1284 with the following transitions: [2018-12-03 07:46:58,730 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [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], [666], [667], [671], [675], [679], [683], [686], [687], [690], [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], [822], [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], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:46:58,732 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:46:58,732 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:47:05,767 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:47:05,767 INFO L272 AbstractInterpreter]: Visited 196 different actions 792 times. Merged at 12 different actions 41 times. Widened at 1 different actions 1 times. Performed 8817 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8817 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 17 fixpoints after 6 different actions. Largest state had 24 variables. [2018-12-03 07:47:05,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:47:05,768 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:47:05,768 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:47:05,769 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/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 [2018-12-03 07:47:05,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:47:05,774 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:47:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:47:05,909 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:47:06,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5076 backedges. 2281 proven. 2 refuted. 0 times theorem prover too weak. 2793 trivial. 0 not checked. [2018-12-03 07:47:06,373 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:47:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5076 backedges. 1335 proven. 112 refuted. 0 times theorem prover too weak. 3629 trivial. 0 not checked. [2018-12-03 07:47:07,335 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:47:07,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-12-03 07:47:07,336 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:47:07,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-03 07:47:07,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-03 07:47:07,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-12-03 07:47:07,337 INFO L87 Difference]: Start difference. First operand 6172 states and 6720 transitions. Second operand 17 states. [2018-12-03 07:47:10,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:47:10,421 INFO L93 Difference]: Finished difference Result 12226 states and 13335 transitions. [2018-12-03 07:47:10,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-12-03 07:47:10,421 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1283 [2018-12-03 07:47:10,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:47:10,428 INFO L225 Difference]: With dead ends: 12226 [2018-12-03 07:47:10,428 INFO L226 Difference]: Without dead ends: 6244 [2018-12-03 07:47:10,433 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2636 GetRequests, 2584 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=562, Invalid=2194, Unknown=0, NotChecked=0, Total=2756 [2018-12-03 07:47:10,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6244 states. [2018-12-03 07:47:10,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6244 to 6172. [2018-12-03 07:47:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6172 states. [2018-12-03 07:47:10,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6172 states to 6172 states and 6703 transitions. [2018-12-03 07:47:10,488 INFO L78 Accepts]: Start accepts. Automaton has 6172 states and 6703 transitions. Word has length 1283 [2018-12-03 07:47:10,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:47:10,488 INFO L480 AbstractCegarLoop]: Abstraction has 6172 states and 6703 transitions. [2018-12-03 07:47:10,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-03 07:47:10,488 INFO L276 IsEmpty]: Start isEmpty. Operand 6172 states and 6703 transitions. [2018-12-03 07:47:10,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1605 [2018-12-03 07:47:10,500 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:47:10,500 INFO L402 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 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, 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, 8, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:47:10,500 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:47:10,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:47:10,500 INFO L82 PathProgramCache]: Analyzing trace with hash -560085719, now seen corresponding path program 1 times [2018-12-03 07:47:10,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:47:10,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:47:10,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:47:10,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:47:10,501 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:47:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:47:11,390 INFO L134 CoverageAnalysis]: Checked inductivity of 7674 backedges. 1895 proven. 2 refuted. 0 times theorem prover too weak. 5777 trivial. 0 not checked. [2018-12-03 07:47:11,390 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:47:11,390 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:47:11,390 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1605 with the following transitions: [2018-12-03 07:47:11,390 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [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], [662], [663], [667], [671], [675], [679], [683], [686], [687], [690], [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], [822], [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], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:47:11,392 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:47:11,392 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:47:15,314 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:47:15,314 INFO L272 AbstractInterpreter]: Visited 201 different actions 803 times. Merged at 10 different actions 32 times. Widened at 1 different actions 1 times. Performed 8994 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8994 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 19 fixpoints after 11 different actions. Largest state had 24 variables. [2018-12-03 07:47:15,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:47:15,316 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:47:15,316 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:47:15,316 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 07:47:15,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:47:15,322 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:47:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:47:15,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:47:16,083 INFO L134 CoverageAnalysis]: Checked inductivity of 7674 backedges. 1895 proven. 2 refuted. 0 times theorem prover too weak. 5777 trivial. 0 not checked. [2018-12-03 07:47:16,083 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:47:16,805 INFO L134 CoverageAnalysis]: Checked inductivity of 7674 backedges. 1895 proven. 2 refuted. 0 times theorem prover too weak. 5777 trivial. 0 not checked. [2018-12-03 07:47:16,821 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:47:16,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-12-03 07:47:16,822 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:47:16,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 07:47:16,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 07:47:16,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-03 07:47:16,823 INFO L87 Difference]: Start difference. First operand 6172 states and 6703 transitions. Second operand 10 states. [2018-12-03 07:47:17,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:47:17,673 INFO L93 Difference]: Finished difference Result 13094 states and 14346 transitions. [2018-12-03 07:47:17,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-03 07:47:17,673 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1604 [2018-12-03 07:47:17,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:47:17,679 INFO L225 Difference]: With dead ends: 13094 [2018-12-03 07:47:17,679 INFO L226 Difference]: Without dead ends: 4700 [2018-12-03 07:47:17,686 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3232 GetRequests, 3212 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2018-12-03 07:47:17,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4700 states. [2018-12-03 07:47:17,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4700 to 4294. [2018-12-03 07:47:17,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4294 states. [2018-12-03 07:47:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4294 states to 4294 states and 4470 transitions. [2018-12-03 07:47:17,727 INFO L78 Accepts]: Start accepts. Automaton has 4294 states and 4470 transitions. Word has length 1604 [2018-12-03 07:47:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:47:17,728 INFO L480 AbstractCegarLoop]: Abstraction has 4294 states and 4470 transitions. [2018-12-03 07:47:17,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 07:47:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 4294 states and 4470 transitions. [2018-12-03 07:47:17,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1606 [2018-12-03 07:47:17,738 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:47:17,739 INFO L402 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 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, 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, 8, 8, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:47:17,739 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:47:17,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:47:17,739 INFO L82 PathProgramCache]: Analyzing trace with hash 888570278, now seen corresponding path program 1 times [2018-12-03 07:47:17,739 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:47:17,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:47:17,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:47:17,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:47:17,740 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:47:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:47:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 7681 backedges. 1656 proven. 1159 refuted. 0 times theorem prover too weak. 4866 trivial. 0 not checked. [2018-12-03 07:47:19,411 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:47:19,411 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:47:19,412 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1606 with the following transitions: [2018-12-03 07:47:19,412 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [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], [666], [667], [671], [675], [679], [683], [686], [687], [690], [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], [822], [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], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:47:19,413 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:47:19,413 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:47:26,526 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:47:26,527 INFO L272 AbstractInterpreter]: Visited 201 different actions 806 times. Merged at 12 different actions 35 times. Never widened. Performed 8978 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8978 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 19 fixpoints after 9 different actions. Largest state had 24 variables. [2018-12-03 07:47:26,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:47:26,529 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:47:26,529 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:47:26,529 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 07:47:26,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:47:26,535 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:47:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:47:26,693 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:47:27,427 INFO L134 CoverageAnalysis]: Checked inductivity of 7681 backedges. 2894 proven. 2 refuted. 0 times theorem prover too weak. 4785 trivial. 0 not checked. [2018-12-03 07:47:27,427 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:47:28,647 INFO L134 CoverageAnalysis]: Checked inductivity of 7681 backedges. 1665 proven. 112 refuted. 0 times theorem prover too weak. 5904 trivial. 0 not checked. [2018-12-03 07:47:28,663 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:47:28,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-12-03 07:47:28,663 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:47:28,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-03 07:47:28,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-03 07:47:28,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-12-03 07:47:28,664 INFO L87 Difference]: Start difference. First operand 4294 states and 4470 transitions. Second operand 17 states. [2018-12-03 07:47:31,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:47:31,360 INFO L93 Difference]: Finished difference Result 8600 states and 8956 transitions. [2018-12-03 07:47:31,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-12-03 07:47:31,360 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1605 [2018-12-03 07:47:31,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:47:31,365 INFO L225 Difference]: With dead ends: 8600 [2018-12-03 07:47:31,365 INFO L226 Difference]: Without dead ends: 4312 [2018-12-03 07:47:31,368 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3270 GetRequests, 3224 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=434, Invalid=1728, Unknown=0, NotChecked=0, Total=2162 [2018-12-03 07:47:31,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4312 states. [2018-12-03 07:47:31,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4312 to 4294. [2018-12-03 07:47:31,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4294 states. [2018-12-03 07:47:31,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4294 states to 4294 states and 4454 transitions. [2018-12-03 07:47:31,406 INFO L78 Accepts]: Start accepts. Automaton has 4294 states and 4454 transitions. Word has length 1605 [2018-12-03 07:47:31,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:47:31,407 INFO L480 AbstractCegarLoop]: Abstraction has 4294 states and 4454 transitions. [2018-12-03 07:47:31,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-03 07:47:31,407 INFO L276 IsEmpty]: Start isEmpty. Operand 4294 states and 4454 transitions. [2018-12-03 07:47:31,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1823 [2018-12-03 07:47:31,420 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:47:31,420 INFO L402 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 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, 10, 9, 9, 8, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:47:31,420 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:47:31,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:47:31,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1822319605, now seen corresponding path program 1 times [2018-12-03 07:47:31,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:47:31,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:47:31,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:47:31,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:47:31,421 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:47:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:47:33,743 INFO L134 CoverageAnalysis]: Checked inductivity of 10353 backedges. 2004 proven. 2489 refuted. 0 times theorem prover too weak. 5860 trivial. 0 not checked. [2018-12-03 07:47:33,743 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:47:33,743 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:47:33,743 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1823 with the following transitions: [2018-12-03 07:47:33,743 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [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], [634], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [670], [671], [675], [679], [683], [686], [687], [690], [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], [822], [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], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:47:33,745 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:47:33,745 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:47:40,798 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:47:40,798 INFO L272 AbstractInterpreter]: Visited 203 different actions 814 times. Merged at 11 different actions 35 times. Widened at 1 different actions 1 times. Performed 9141 root evaluator evaluations with a maximum evaluation depth of 22. Performed 9141 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 21 fixpoints after 13 different actions. Largest state had 24 variables. [2018-12-03 07:47:40,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:47:40,801 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:47:40,802 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:47:40,802 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 07:47:40,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:47:40,807 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:47:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:47:41,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:47:41,786 INFO L134 CoverageAnalysis]: Checked inductivity of 10353 backedges. 4409 proven. 6 refuted. 0 times theorem prover too weak. 5938 trivial. 0 not checked. [2018-12-03 07:47:41,787 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:47:43,285 INFO L134 CoverageAnalysis]: Checked inductivity of 10353 backedges. 2973 proven. 214 refuted. 0 times theorem prover too weak. 7166 trivial. 0 not checked. [2018-12-03 07:47:43,301 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:47:43,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 18 [2018-12-03 07:47:43,301 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:47:43,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-03 07:47:43,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-03 07:47:43,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2018-12-03 07:47:43,302 INFO L87 Difference]: Start difference. First operand 4294 states and 4454 transitions. Second operand 16 states. [2018-12-03 07:47:44,289 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-03 07:47:46,338 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2018-12-03 07:47:48,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:47:48,008 INFO L93 Difference]: Finished difference Result 8571 states and 9025 transitions. [2018-12-03 07:47:48,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-12-03 07:47:48,008 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1822 [2018-12-03 07:47:48,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:47:48,014 INFO L225 Difference]: With dead ends: 8571 [2018-12-03 07:47:48,014 INFO L226 Difference]: Without dead ends: 4401 [2018-12-03 07:47:48,017 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3720 GetRequests, 3675 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2018-12-03 07:47:48,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4401 states. [2018-12-03 07:47:48,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4401 to 4100. [2018-12-03 07:47:48,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4100 states. [2018-12-03 07:47:48,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4100 states to 4100 states and 4237 transitions. [2018-12-03 07:47:48,058 INFO L78 Accepts]: Start accepts. Automaton has 4100 states and 4237 transitions. Word has length 1822 [2018-12-03 07:47:48,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:47:48,059 INFO L480 AbstractCegarLoop]: Abstraction has 4100 states and 4237 transitions. [2018-12-03 07:47:48,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-03 07:47:48,059 INFO L276 IsEmpty]: Start isEmpty. Operand 4100 states and 4237 transitions. [2018-12-03 07:47:48,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1846 [2018-12-03 07:47:48,073 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:47:48,073 INFO L402 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 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, 10, 10, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-12-03 07:47:48,073 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:47:48,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:47:48,074 INFO L82 PathProgramCache]: Analyzing trace with hash -318110582, now seen corresponding path program 1 times [2018-12-03 07:47:48,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:47:48,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:47:48,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:47:48,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:47:48,075 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:47:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:47:51,215 INFO L134 CoverageAnalysis]: Checked inductivity of 10523 backedges. 2000 proven. 6738 refuted. 0 times theorem prover too weak. 1785 trivial. 0 not checked. [2018-12-03 07:47:51,215 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:47:51,215 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:47:51,215 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1846 with the following transitions: [2018-12-03 07:47:51,215 INFO L205 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], [289], [297], [305], [313], [321], [329], [333], [335], [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], [666], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [726], [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], [822], [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], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 07:47:51,217 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:47:51,217 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:47:58,245 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:47:58,245 INFO L272 AbstractInterpreter]: Visited 203 different actions 820 times. Merged at 13 different actions 41 times. Widened at 1 different actions 2 times. Performed 9180 root evaluator evaluations with a maximum evaluation depth of 22. Performed 9180 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 21 fixpoints after 11 different actions. Largest state had 24 variables. [2018-12-03 07:47:58,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:47:58,247 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:47:58,247 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:47:58,247 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 07:47:58,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:47:58,253 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:47:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:47:58,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:47:59,381 INFO L134 CoverageAnalysis]: Checked inductivity of 10523 backedges. 4681 proven. 6 refuted. 0 times theorem prover too weak. 5836 trivial. 0 not checked. [2018-12-03 07:47:59,381 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:48:01,163 INFO L134 CoverageAnalysis]: Checked inductivity of 10523 backedges. 3110 proven. 349 refuted. 0 times theorem prover too weak. 7064 trivial. 0 not checked. [2018-12-03 07:48:01,180 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:48:01,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 8, 8] total 38 [2018-12-03 07:48:01,181 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:48:01,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-12-03 07:48:01,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-12-03 07:48:01,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1260, Unknown=0, NotChecked=0, Total=1406 [2018-12-03 07:48:01,182 INFO L87 Difference]: Start difference. First operand 4100 states and 4237 transitions. Second operand 33 states. [2018-12-03 07:48:06,108 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 30 [2018-12-03 07:48:06,356 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 21 [2018-12-03 07:48:07,079 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2018-12-03 07:48:07,875 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-12-03 07:48:08,444 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2018-12-03 07:48:09,671 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 29 [2018-12-03 07:48:12,061 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2018-12-03 07:48:12,671 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2018-12-03 07:48:16,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:48:16,934 INFO L93 Difference]: Finished difference Result 8893 states and 9390 transitions. [2018-12-03 07:48:16,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-12-03 07:48:16,935 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 1845 [2018-12-03 07:48:16,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:48:16,942 INFO L225 Difference]: With dead ends: 8893 [2018-12-03 07:48:16,942 INFO L226 Difference]: Without dead ends: 4219 [2018-12-03 07:48:16,947 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3826 GetRequests, 3717 SyntacticMatches, 1 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3432 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=2075, Invalid=9915, Unknown=0, NotChecked=0, Total=11990 [2018-12-03 07:48:16,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4219 states. [2018-12-03 07:48:16,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4219 to 3898. [2018-12-03 07:48:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3898 states. [2018-12-03 07:48:16,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3898 states to 3898 states and 3975 transitions. [2018-12-03 07:48:16,986 INFO L78 Accepts]: Start accepts. Automaton has 3898 states and 3975 transitions. Word has length 1845 [2018-12-03 07:48:16,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:48:16,987 INFO L480 AbstractCegarLoop]: Abstraction has 3898 states and 3975 transitions. [2018-12-03 07:48:16,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-12-03 07:48:16,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3898 states and 3975 transitions. [2018-12-03 07:48:17,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1938 [2018-12-03 07:48:17,000 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:48:17,001 INFO L402 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 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, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-12-03 07:48:17,001 INFO L423 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:48:17,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:48:17,001 INFO L82 PathProgramCache]: Analyzing trace with hash -2043261290, now seen corresponding path program 1 times [2018-12-03 07:48:17,001 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:48:17,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:48:17,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:48:17,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:48:17,002 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:48:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:48:18,089 INFO L134 CoverageAnalysis]: Checked inductivity of 11762 backedges. 732 proven. 0 refuted. 0 times theorem prover too weak. 11030 trivial. 0 not checked. [2018-12-03 07:48:18,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:48:18,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 07:48:18,089 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:48:18,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 07:48:18,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 07:48:18,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:48:18,091 INFO L87 Difference]: Start difference. First operand 3898 states and 3975 transitions. Second operand 3 states. [2018-12-03 07:48:18,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:48:18,316 INFO L93 Difference]: Finished difference Result 3898 states and 3975 transitions. [2018-12-03 07:48:18,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 07:48:18,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1937 [2018-12-03 07:48:18,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:48:18,317 INFO L225 Difference]: With dead ends: 3898 [2018-12-03 07:48:18,317 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 07:48:18,319 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:48:18,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 07:48:18,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 07:48:18,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 07:48:18,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 07:48:18,319 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1937 [2018-12-03 07:48:18,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:48:18,320 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 07:48:18,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 07:48:18,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 07:48:18,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 07:48:18,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 07:48:18,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:18,441 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:18,444 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:18,463 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:18,473 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:18,510 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:18,510 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:18,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:18,545 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:18,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:18,660 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:18,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:19,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:19,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:19,138 WARN L180 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 657 DAG size of output: 555 [2018-12-03 07:48:19,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:19,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:19,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:19,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:19,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:19,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:19,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:19,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:48:19,768 WARN L180 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 541 [2018-12-03 07:48:21,009 WARN L180 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 319 DAG size of output: 110 [2018-12-03 07:48:23,844 WARN L180 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 546 DAG size of output: 96 [2018-12-03 07:48:27,828 WARN L180 SmtUtils]: Spent 3.98 s on a formula simplification. DAG size of input: 542 DAG size of output: 100 [2018-12-03 07:48:27,830 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 07:48:27,830 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a12~0 |old(~a12~0)|) (<= |old(~a12~0)| ~a12~0) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-12-03 07:48:27,830 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:48:27,830 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-12-03 07:48:27,830 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-12-03 07:48:27,831 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-12-03 07:48:27,832 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,833 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-03 07:48:27,834 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-12-03 07:48:27,835 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-12-03 07:48:27,836 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,836 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,836 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,836 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-12-03 07:48:27,836 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-12-03 07:48:27,836 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-03 07:48:27,836 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-03 07:48:27,836 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-03 07:48:27,836 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-12-03 07:48:27,836 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse7 (= ~a12~0 |old(~a12~0)|)) (.cse4 (= ~a24~0 |old(~a24~0)|)) (.cse5 (= ~a21~0 |old(~a21~0)|)) (.cse3 (<= ~a12~0 |old(~a12~0)|)) (.cse16 (<= |old(~a12~0)| ~a12~0)) (.cse8 (= ~a21~0 9)) (.cse9 (= |old(~a15~0)| ~a15~0)) (.cse10 (= 1 ~a24~0)) (.cse32 (= 9 |old(~a21~0)|)) (.cse1 (not (= 1 |old(~a24~0)|))) (.cse19 (= 5 |old(~a15~0)|))) (let ((.cse2 (not .cse19)) (.cse17 (= 10 ~a21~0)) (.cse14 (not (= 10 |old(~a21~0)|))) (.cse22 (or .cse32 .cse1)) (.cse13 (not (= 6 |old(~a15~0)|))) (.cse11 (< 0 (+ |old(~a12~0)| 43))) (.cse31 (and .cse3 .cse16 .cse8 .cse9 .cse10)) (.cse24 (< 73282 |old(~a12~0)|)) (.cse12 (< 7 |old(~a15~0)|)) (.cse0 (not (= 6 |old(~a21~0)|))) (.cse23 (and .cse7 .cse4 .cse5 .cse9)) (.cse28 (not (= 8 |old(~a15~0)|))) (.cse29 (= |calculate_output_#in~input| 0)) (.cse27 (and .cse3 .cse16 .cse5 (= 8 ~a15~0) (= ~a24~0 1))) (.cse15 (< 11 |old(~a12~0)|)) (.cse21 (and .cse3 .cse16 .cse4 .cse5 .cse9)) (.cse25 (not (= 8 |old(~a21~0)|))) (.cse6 (not .cse32)) (.cse30 (not (= 7 |old(~a15~0)|))) (.cse26 (not (= 7 |old(~a21~0)|))) (.cse18 (< |old(~a12~0)| 19)) (.cse20 (and .cse3 .cse16 .cse5 .cse9 .cse10))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 (= ~a15~0 |old(~a15~0)|))) (or .cse6 .cse1 (and .cse7 .cse8 .cse9 .cse10) .cse11 .cse12) (or .cse13 (= 6 ~a15~0)) (or .cse14 .cse1 .cse15 (and .cse3 .cse16 .cse9 .cse10 .cse17)) (or .cse14 .cse18 .cse19 .cse1 .cse20) (or .cse0 .cse21 .cse11 .cse12) (or .cse22 .cse23 .cse24 .cse25) (or (and .cse7 .cse5 .cse9 .cse10) .cse26 (< 76 |old(~a12~0)|) .cse22 .cse12) (or (or .cse22 .cse24) .cse14 .cse2 (and .cse7 .cse9 .cse10 .cse17)) (or .cse27 (or .cse28 .cse29 .cse26 .cse1 .cse15)) (or .cse23 .cse14 .cse22 .cse30) (or .cse6 .cse31 .cse18 .cse19 .cse1) (or (<= (+ ~a12~0 43) 0) .cse13 .cse11) (or .cse0 .cse18 .cse19 .cse20 .cse1) (or .cse6 (< |old(~a12~0)| 12) .cse31 .cse1 .cse24 .cse12) (or .cse0 .cse1 .cse30 .cse23) (or .cse28 .cse29 .cse6 .cse27 .cse1 .cse15) (or .cse19 .cse1 .cse21 .cse25) (or (and .cse7 .cse8 (= 7 ~a15~0) .cse10) .cse6 .cse1 .cse30) (or .cse26 .cse18 .cse19 .cse1 .cse20)))) [2018-12-03 07:48:27,836 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,837 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-03 07:48:27,838 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,839 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-12-03 07:48:27,840 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-12-03 07:48:27,841 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-12-03 07:48:27,842 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-12-03 07:48:27,843 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,844 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-03 07:48:27,845 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-12-03 07:48:27,846 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:48:27,846 INFO L444 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)) [2018-12-03 07:48:27,846 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 07:48:27,846 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 07:48:27,846 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (not (= 7 |old(~a21~0)|)) (and (= 7 ~a21~0) (<= |old(~a12~0)| ~a12~0) (<= (+ ~a12~0 49) 0) (= |old(~a15~0)| ~a15~0) (= ~a24~0 1)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-12-03 07:48:27,846 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-12-03 07:48:27,846 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse8 (= 9 ~a21~0)) (.cse0 (= 1 ~a24~0)) (.cse20 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)))) (.cse5 (= 5 ~a15~0))) (let ((.cse4 (= 6 ~a21~0)) (.cse12 (not .cse5)) (.cse18 (= ~a21~0 10)) (.cse16 (and (not .cse8) .cse0 .cse20))) (let ((.cse13 (and (not (= 10 |old(~a21~0)|)) .cse18 .cse16)) (.cse11 (<= ~a12~0 11)) (.cse9 (not (= main_~input~0 0))) (.cse10 (= ~a15~0 8)) (.cse2 (<= ~a15~0 7)) (.cse1 (<= (+ ~a12~0 43) 0)) (.cse17 (and .cse0 .cse20 .cse12)) (.cse3 (= ~a21~0 9)) (.cse15 (= 7 ~a15~0)) (.cse19 (and .cse4 .cse0 .cse20 .cse12)) (.cse6 (<= ~a12~0 73282)) (.cse7 (= ~a21~0 7)) (.cse14 (<= 19 ~a12~0))) (or (not (= 8 |old(~a15~0)|)) (and (and .cse0 .cse1) .cse2 .cse3) (and .cse4 .cse0 .cse5) (and (<= 12 ~a12~0) (and (and .cse6 .cse2 .cse3) .cse0)) (= 6 ~a15~0) (not (= 7 |old(~a21~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (<= ~a12~0 76) .cse0 .cse2 .cse7) (and (and .cse8 (and .cse9 .cse10 (= ~a24~0 1))) .cse11) (and .cse12 .cse13 .cse14) (and .cse15 .cse13) (and .cse16 (= 8 ~a21~0) .cse12) (and (and .cse17 .cse3) .cse14) (and .cse16 .cse18 .cse11) (and .cse5 (and .cse6 .cse13)) (and .cse19 .cse14) (and (and .cse11 (and (= 7 ~a21~0) .cse9 .cse10)) .cse0) (and .cse2 (and .cse4 .cse1)) (and .cse17 .cse15 .cse3) (and .cse15 .cse19) (and .cse6 .cse16 (= ~a21~0 8)) (and (and .cse0 .cse7) .cse12 .cse14) (not (= 1 |old(~a24~0)|)))))) [2018-12-03 07:48:27,846 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-12-03 07:48:27,846 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-12-03 07:48:27,847 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse10 (= 9 ~a21~0)) (.cse0 (= 1 ~a24~0)) (.cse20 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)))) (.cse5 (= 5 ~a15~0))) (let ((.cse4 (= 6 ~a21~0)) (.cse12 (not .cse5)) (.cse18 (= ~a21~0 10)) (.cse16 (and (not .cse10) .cse0 .cse20))) (let ((.cse7 (= ~a15~0 8)) (.cse8 (= ~a24~0 1)) (.cse9 (<= ~a12~0 11)) (.cse13 (and (not (= 10 |old(~a21~0)|)) .cse18 .cse16)) (.cse2 (<= ~a15~0 7)) (.cse1 (<= (+ ~a12~0 43) 0)) (.cse17 (and .cse0 .cse20 .cse12)) (.cse3 (= ~a21~0 9)) (.cse15 (= 7 ~a15~0)) (.cse19 (and .cse4 .cse0 .cse20 .cse12)) (.cse6 (<= ~a12~0 73282)) (.cse11 (= ~a21~0 7)) (.cse14 (<= 19 ~a12~0))) (or (not (= 8 |old(~a15~0)|)) (and (and .cse0 .cse1) .cse2 .cse3) (and .cse4 .cse0 .cse5) (and (<= 12 ~a12~0) (and (and .cse6 .cse2 .cse3) .cse0)) (= 6 ~a15~0) (and (and (= 7 ~a21~0) .cse7 .cse8) .cse9) (not (= 7 |old(~a21~0)|)) (and .cse9 (and (and .cse7 .cse8) .cse10)) (not (= 0 (+ |old(~a12~0)| 49))) (and (<= ~a12~0 76) .cse0 .cse2 .cse11) (and .cse12 .cse13 .cse14) (and .cse15 .cse13) (and .cse16 (= 8 ~a21~0) .cse12) (and (and .cse17 .cse3) .cse14) (and .cse16 .cse18 .cse9) (and .cse5 (and .cse6 .cse13)) (and .cse19 .cse14) (and .cse2 (and .cse4 .cse1)) (and .cse17 .cse15 .cse3) (and .cse15 .cse19) (and .cse6 .cse16 (= ~a21~0 8)) (and (and .cse0 .cse11) .cse12 .cse14) (not (= 1 |old(~a24~0)|)))))) [2018-12-03 07:48:27,847 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-12-03 07:48:27,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 07:48:27 BoogieIcfgContainer [2018-12-03 07:48:27,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 07:48:27,858 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 07:48:27,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 07:48:27,859 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 07:48:27,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:44:34" (3/4) ... [2018-12-03 07:48:27,862 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 07:48:27,866 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 07:48:27,867 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-03 07:48:27,867 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 07:48:27,877 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-03 07:48:27,877 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-03 07:48:27,903 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((!(8 == \old(a15)) || (((1 == a24 && a12 + 43 <= 0) && a15 <= 7) && a21 == 9)) || ((6 == a21 && 1 == a24) && 5 == a15)) || (12 <= a12 && ((a12 <= 73282 && a15 <= 7) && a21 == 9) && 1 == a24)) || 6 == a15) || (((7 == a21 && a15 == 8) && a24 == 1) && a12 <= 11)) || !(7 == \old(a21))) || (a12 <= 11 && (a15 == 8 && a24 == 1) && 9 == a21)) || !(0 == \old(a12) + 49)) || (((a12 <= 76 && 1 == a24) && a15 <= 7) && a21 == 7)) || ((!(5 == a15) && (!(10 == \old(a21)) && a21 == 10) && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && 19 <= a12)) || (7 == a15 && (!(10 == \old(a21)) && a21 == 10) && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || ((((!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && 8 == a21) && !(5 == a15))) || ((((1 == a24 && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15)) && a21 == 9) && 19 <= a12)) || ((((!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && a21 == 10) && a12 <= 11)) || (5 == a15 && a12 <= 73282 && (!(10 == \old(a21)) && a21 == 10) && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || ((((6 == a21 && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15)) && 19 <= a12)) || (a15 <= 7 && 6 == a21 && a12 + 43 <= 0)) || ((((1 == a24 && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15)) && 7 == a15) && a21 == 9)) || (7 == a15 && ((6 == a21 && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15))) || ((a12 <= 73282 && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && a21 == 8)) || (((1 == a24 && a21 == 7) && !(5 == a15)) && 19 <= a12)) || !(1 == \old(a24)) [2018-12-03 07:48:27,958 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_05c55a03-bae2-4253-9efc-2f447e95577e/bin-2019/utaipan/witness.graphml [2018-12-03 07:48:27,958 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 07:48:27,959 INFO L168 Benchmark]: Toolchain (without parser) took 234336.25 ms. Allocated memory was 1.0 GB in the beginning and 4.5 GB in the end (delta: 3.4 GB). Free memory was 948.1 MB in the beginning and 3.0 GB in the end (delta: -2.0 GB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-12-03 07:48:27,960 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:48:27,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -112.4 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2018-12-03 07:48:27,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-12-03 07:48:27,960 INFO L168 Benchmark]: Boogie Preprocessor took 43.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:48:27,961 INFO L168 Benchmark]: RCFGBuilder took 722.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 929.1 MB in the end (delta: 124.2 MB). Peak memory consumption was 124.2 MB. Max. memory is 11.5 GB. [2018-12-03 07:48:27,961 INFO L168 Benchmark]: TraceAbstraction took 233097.62 ms. Allocated memory was 1.1 GB in the beginning and 4.5 GB in the end (delta: 3.4 GB). Free memory was 921.9 MB in the beginning and 3.1 GB in the end (delta: -2.2 GB). Peak memory consumption was 4.0 GB. Max. memory is 11.5 GB. [2018-12-03 07:48:27,961 INFO L168 Benchmark]: Witness Printer took 100.05 ms. Allocated memory is still 4.5 GB. Free memory was 3.1 GB in the beginning and 3.0 GB in the end (delta: 109.8 MB). Peak memory consumption was 109.8 MB. Max. memory is 11.5 GB. [2018-12-03 07:48:27,963 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 349.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -112.4 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 722.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 929.1 MB in the end (delta: 124.2 MB). Peak memory consumption was 124.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 233097.62 ms. Allocated memory was 1.1 GB in the beginning and 4.5 GB in the end (delta: 3.4 GB). Free memory was 921.9 MB in the beginning and 3.1 GB in the end (delta: -2.2 GB). Peak memory consumption was 4.0 GB. Max. memory is 11.5 GB. * Witness Printer took 100.05 ms. Allocated memory is still 4.5 GB. Free memory was 3.1 GB in the beginning and 3.0 GB in the end (delta: 109.8 MB). Peak memory consumption was 109.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: 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 == \old(a15)) || (((1 == a24 && a12 + 43 <= 0) && a15 <= 7) && a21 == 9)) || ((6 == a21 && 1 == a24) && 5 == a15)) || (12 <= a12 && ((a12 <= 73282 && a15 <= 7) && a21 == 9) && 1 == a24)) || 6 == a15) || (((7 == a21 && a15 == 8) && a24 == 1) && a12 <= 11)) || !(7 == \old(a21))) || (a12 <= 11 && (a15 == 8 && a24 == 1) && 9 == a21)) || !(0 == \old(a12) + 49)) || (((a12 <= 76 && 1 == a24) && a15 <= 7) && a21 == 7)) || ((!(5 == a15) && (!(10 == \old(a21)) && a21 == 10) && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && 19 <= a12)) || (7 == a15 && (!(10 == \old(a21)) && a21 == 10) && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || ((((!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && 8 == a21) && !(5 == a15))) || ((((1 == a24 && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15)) && a21 == 9) && 19 <= a12)) || ((((!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && a21 == 10) && a12 <= 11)) || (5 == a15 && a12 <= 73282 && (!(10 == \old(a21)) && a21 == 10) && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || ((((6 == a21 && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15)) && 19 <= a12)) || (a15 <= 7 && 6 == a21 && a12 + 43 <= 0)) || ((((1 == a24 && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15)) && 7 == a15) && a21 == 9)) || (7 == a15 && ((6 == a21 && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15))) || ((a12 <= 73282 && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && a21 == 8)) || (((1 == a24 && a21 == 7) && !(5 == a15)) && 19 <= a12)) || !(1 == \old(a24)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 233.0s OverallTime, 21 OverallIterations, 16 TraceHistogramMax, 99.0s AutomataDifference, 0.0s DeadEndRemovalTime, 9.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 1272 SDtfs, 34151 SDslu, 2543 SDs, 0 SdLazy, 45643 SolverSat, 5403 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70.9s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 33486 GetRequests, 32839 SyntacticMatches, 15 SemanticMatches, 632 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9182 ImplicationChecksByTransitivity, 17.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6172occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 80.6s AbstIntTime, 17 AbstIntIterations, 4 AbstIntStrong, 0.9975651635636338 AbsIntWeakeningRatio, 0.07822533566841798 AbsIntAvgWeakeningVarsNumRemoved, 16.261529480443667 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 21 MinimizatonAttempts, 2958 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 414 PreInvPairs, 534 NumberOfFragments, 1470 HoareAnnotationTreeSize, 414 FomulaSimplifications, 20879333 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1708281 FormulaSimplificationTreeSizeReductionInter, 8.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 20.2s InterpolantComputationTime, 35012 NumberOfCodeBlocks, 35012 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 50439 ConstructedInterpolants, 0 QuantifiedInterpolants, 208426001 SizeOfPredicates, 41 NumberOfNonLiveVariables, 21336 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 47 InterpolantComputations, 4 PerfectInterpolantSequences, 178476/199500 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...