./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label29_true-unreach-call.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_955d376c-6cff-410f-8bf4-d5766b86a349/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label29_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 b58a35b82358ba5160d6216f8f839a69fd1d9edf ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 04:08:14,163 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 04:08:14,164 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 04:08:14,170 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 04:08:14,170 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 04:08:14,171 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 04:08:14,171 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 04:08:14,172 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 04:08:14,173 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 04:08:14,173 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 04:08:14,174 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 04:08:14,174 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 04:08:14,174 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 04:08:14,175 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 04:08:14,175 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 04:08:14,176 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 04:08:14,176 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 04:08:14,177 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 04:08:14,178 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 04:08:14,178 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 04:08:14,179 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 04:08:14,180 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 04:08:14,181 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 04:08:14,181 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 04:08:14,181 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 04:08:14,181 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 04:08:14,182 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 04:08:14,182 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 04:08:14,183 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 04:08:14,183 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 04:08:14,183 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 04:08:14,184 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 04:08:14,184 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 04:08:14,184 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 04:08:14,184 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 04:08:14,185 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 04:08:14,185 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 04:08:14,192 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 04:08:14,192 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 04:08:14,193 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 04:08:14,193 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 04:08:14,193 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 04:08:14,193 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 04:08:14,193 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 04:08:14,193 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 04:08:14,193 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 04:08:14,193 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 04:08:14,193 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 04:08:14,194 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 04:08:14,194 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 04:08:14,194 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 04:08:14,194 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 04:08:14,194 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 04:08:14,194 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 04:08:14,194 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 04:08:14,194 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 04:08:14,195 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 04:08:14,195 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 04:08:14,195 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 04:08:14,195 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 04:08:14,195 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 04:08:14,195 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 04:08:14,195 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 04:08:14,195 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 04:08:14,195 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 04:08:14,195 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 04:08:14,195 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 04:08:14,196 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 04:08:14,196 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 04:08:14,196 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 04:08:14,196 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 04:08:14,196 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 04:08:14,196 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 04:08:14,196 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_955d376c-6cff-410f-8bf4-d5766b86a349/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 -> b58a35b82358ba5160d6216f8f839a69fd1d9edf [2018-12-09 04:08:14,213 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 04:08:14,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 04:08:14,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 04:08:14,222 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 04:08:14,222 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 04:08:14,223 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem16_label29_true-unreach-call.c [2018-12-09 04:08:14,258 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/bin-2019/utaipan/data/bfd6a4e8e/d84f66e1681043e4849ae4eb3756d2cf/FLAGe26b90292 [2018-12-09 04:08:14,766 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 04:08:14,766 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/sv-benchmarks/c/eca-rers2012/Problem16_label29_true-unreach-call.c [2018-12-09 04:08:14,778 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/bin-2019/utaipan/data/bfd6a4e8e/d84f66e1681043e4849ae4eb3756d2cf/FLAGe26b90292 [2018-12-09 04:08:15,241 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/bin-2019/utaipan/data/bfd6a4e8e/d84f66e1681043e4849ae4eb3756d2cf [2018-12-09 04:08:15,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 04:08:15,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 04:08:15,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 04:08:15,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 04:08:15,247 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 04:08:15,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:08:15" (1/1) ... [2018-12-09 04:08:15,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7a2c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:08:15, skipping insertion in model container [2018-12-09 04:08:15,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:08:15" (1/1) ... [2018-12-09 04:08:15,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 04:08:15,291 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 04:08:15,594 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 04:08:15,597 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 04:08:15,779 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 04:08:15,789 INFO L195 MainTranslator]: Completed translation [2018-12-09 04:08:15,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:08:15 WrapperNode [2018-12-09 04:08:15,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 04:08:15,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 04:08:15,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 04:08:15,790 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 04:08:15,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:08:15" (1/1) ... [2018-12-09 04:08:15,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:08:15" (1/1) ... [2018-12-09 04:08:15,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 04:08:15,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 04:08:15,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 04:08:15,815 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 04:08:15,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:08:15" (1/1) ... [2018-12-09 04:08:15,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:08:15" (1/1) ... [2018-12-09 04:08:15,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:08:15" (1/1) ... [2018-12-09 04:08:15,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:08:15" (1/1) ... [2018-12-09 04:08:15,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:08:15" (1/1) ... [2018-12-09 04:08:15,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:08:15" (1/1) ... [2018-12-09 04:08:15,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:08:15" (1/1) ... [2018-12-09 04:08:15,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 04:08:15,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 04:08:15,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 04:08:15,876 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 04:08:15,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:08:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:08:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 04:08:15,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 04:08:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-12-09 04:08:15,916 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-12-09 04:08:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-09 04:08:15,916 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-09 04:08:15,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 04:08:15,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 04:08:15,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 04:08:15,917 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 04:08:17,236 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 04:08:17,237 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 04:08:17,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:08:17 BoogieIcfgContainer [2018-12-09 04:08:17,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 04:08:17,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 04:08:17,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 04:08:17,239 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 04:08:17,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:08:15" (1/3) ... [2018-12-09 04:08:17,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7536bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:08:17, skipping insertion in model container [2018-12-09 04:08:17,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:08:15" (2/3) ... [2018-12-09 04:08:17,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7536bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:08:17, skipping insertion in model container [2018-12-09 04:08:17,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:08:17" (3/3) ... [2018-12-09 04:08:17,241 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label29_true-unreach-call.c [2018-12-09 04:08:17,247 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 04:08:17,252 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 04:08:17,262 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 04:08:17,282 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 04:08:17,282 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 04:08:17,282 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 04:08:17,282 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 04:08:17,282 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 04:08:17,282 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 04:08:17,282 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 04:08:17,282 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 04:08:17,298 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2018-12-09 04:08:17,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 04:08:17,302 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:08:17,303 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] [2018-12-09 04:08:17,304 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:08:17,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:08:17,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1301398987, now seen corresponding path program 1 times [2018-12-09 04:08:17,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:08:17,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:08:17,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:08:17,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:08:17,337 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:08:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:08:17,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 04:08:17,481 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 04:08:17,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 04:08:17,482 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:08:17,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 04:08:17,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 04:08:17,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 04:08:17,494 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 3 states. [2018-12-09 04:08:18,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:08:18,548 INFO L93 Difference]: Finished difference Result 1153 states and 2141 transitions. [2018-12-09 04:08:18,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 04:08:18,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-12-09 04:08:18,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:08:18,559 INFO L225 Difference]: With dead ends: 1153 [2018-12-09 04:08:18,559 INFO L226 Difference]: Without dead ends: 682 [2018-12-09 04:08:18,563 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 04:08:18,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2018-12-09 04:08:18,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 682. [2018-12-09 04:08:18,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 682 states. [2018-12-09 04:08:18,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1166 transitions. [2018-12-09 04:08:18,607 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1166 transitions. Word has length 52 [2018-12-09 04:08:18,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:08:18,607 INFO L480 AbstractCegarLoop]: Abstraction has 682 states and 1166 transitions. [2018-12-09 04:08:18,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 04:08:18,607 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1166 transitions. [2018-12-09 04:08:18,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-12-09 04:08:18,610 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:08:18,611 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:08:18,611 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:08:18,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:08:18,611 INFO L82 PathProgramCache]: Analyzing trace with hash -740813347, now seen corresponding path program 1 times [2018-12-09 04:08:18,611 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:08:18,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:08:18,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:08:18,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:08:18,612 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:08:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:08:18,738 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 04:08:18,739 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 04:08:18,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 04:08:18,739 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:08:18,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 04:08:18,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 04:08:18,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 04:08:18,740 INFO L87 Difference]: Start difference. First operand 682 states and 1166 transitions. Second operand 6 states. [2018-12-09 04:08:21,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:08:21,343 INFO L93 Difference]: Finished difference Result 1733 states and 2953 transitions. [2018-12-09 04:08:21,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 04:08:21,344 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159 [2018-12-09 04:08:21,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:08:21,348 INFO L225 Difference]: With dead ends: 1733 [2018-12-09 04:08:21,348 INFO L226 Difference]: Without dead ends: 1057 [2018-12-09 04:08:21,349 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-09 04:08:21,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2018-12-09 04:08:21,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1039. [2018-12-09 04:08:21,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2018-12-09 04:08:21,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1701 transitions. [2018-12-09 04:08:21,371 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1701 transitions. Word has length 159 [2018-12-09 04:08:21,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:08:21,371 INFO L480 AbstractCegarLoop]: Abstraction has 1039 states and 1701 transitions. [2018-12-09 04:08:21,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 04:08:21,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1701 transitions. [2018-12-09 04:08:21,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-12-09 04:08:21,373 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:08:21,373 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:08:21,373 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:08:21,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:08:21,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1072071420, now seen corresponding path program 1 times [2018-12-09 04:08:21,373 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:08:21,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:08:21,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:08:21,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:08:21,374 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:08:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:08:21,477 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 04:08:21,477 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 04:08:21,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 04:08:21,477 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:08:21,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 04:08:21,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 04:08:21,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 04:08:21,478 INFO L87 Difference]: Start difference. First operand 1039 states and 1701 transitions. Second operand 6 states. [2018-12-09 04:08:22,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:08:22,799 INFO L93 Difference]: Finished difference Result 3130 states and 5158 transitions. [2018-12-09 04:08:22,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 04:08:22,799 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2018-12-09 04:08:22,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:08:22,807 INFO L225 Difference]: With dead ends: 3130 [2018-12-09 04:08:22,807 INFO L226 Difference]: Without dead ends: 2097 [2018-12-09 04:08:22,810 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-09 04:08:22,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2097 states. [2018-12-09 04:08:22,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2097 to 2081. [2018-12-09 04:08:22,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2081 states. [2018-12-09 04:08:22,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 3125 transitions. [2018-12-09 04:08:22,857 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 3125 transitions. Word has length 162 [2018-12-09 04:08:22,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:08:22,858 INFO L480 AbstractCegarLoop]: Abstraction has 2081 states and 3125 transitions. [2018-12-09 04:08:22,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 04:08:22,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 3125 transitions. [2018-12-09 04:08:22,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-12-09 04:08:22,862 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:08:22,862 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:08:22,862 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:08:22,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:08:22,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1495259620, now seen corresponding path program 1 times [2018-12-09 04:08:22,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:08:22,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:08:22,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:08:22,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:08:22,864 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:08:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:08:23,002 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 90 proven. 106 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 04:08:23,002 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:08:23,002 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:08:23,003 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 278 with the following transitions: [2018-12-09 04:08:23,004 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:08:23,029 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:08:23,030 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:08:23,262 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 04:08:23,263 INFO L272 AbstractInterpreter]: Visited 120 different actions 120 times. Never merged. Never widened. Performed 1095 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1095 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 24 variables. [2018-12-09 04:08:23,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:08:23,267 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 04:08:23,544 INFO L227 lantSequenceWeakener]: Weakened 268 states. On average, predicates are now at 77.86% of their original sizes. [2018-12-09 04:08:23,544 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 04:08:23,576 INFO L418 sIntCurrentIteration]: We unified 276 AI predicates to 276 [2018-12-09 04:08:23,576 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 04:08:23,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 04:08:23,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-12-09 04:08:23,577 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:08:23,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 04:08:23,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 04:08:23,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 04:08:23,577 INFO L87 Difference]: Start difference. First operand 2081 states and 3125 transitions. Second operand 6 states. [2018-12-09 04:08:43,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:08:43,926 INFO L93 Difference]: Finished difference Result 4494 states and 6706 transitions. [2018-12-09 04:08:43,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 04:08:43,926 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 277 [2018-12-09 04:08:43,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:08:43,930 INFO L225 Difference]: With dead ends: 4494 [2018-12-09 04:08:43,931 INFO L226 Difference]: Without dead ends: 2419 [2018-12-09 04:08:43,932 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 277 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 04:08:43,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2018-12-09 04:08:43,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 2418. [2018-12-09 04:08:43,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2418 states. [2018-12-09 04:08:43,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3469 transitions. [2018-12-09 04:08:43,963 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3469 transitions. Word has length 277 [2018-12-09 04:08:43,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:08:43,963 INFO L480 AbstractCegarLoop]: Abstraction has 2418 states and 3469 transitions. [2018-12-09 04:08:43,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 04:08:43,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3469 transitions. [2018-12-09 04:08:43,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-12-09 04:08:43,966 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:08:43,966 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:08:43,967 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:08:43,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:08:43,967 INFO L82 PathProgramCache]: Analyzing trace with hash 563458644, now seen corresponding path program 1 times [2018-12-09 04:08:43,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:08:43,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:08:43,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:08:43,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:08:43,968 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:08:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:08:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 228 proven. 110 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2018-12-09 04:08:44,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:08:44,119 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:08:44,119 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 369 with the following transitions: [2018-12-09 04:08:44,120 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:08:44,122 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:08:44,122 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:08:44,260 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 04:08:44,260 INFO L272 AbstractInterpreter]: Visited 124 different actions 359 times. Merged at 4 different actions 7 times. Never widened. Performed 3526 root evaluator evaluations with a maximum evaluation depth of 7. Performed 3526 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-09 04:08:44,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:08:44,262 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 04:08:44,454 INFO L227 lantSequenceWeakener]: Weakened 365 states. On average, predicates are now at 80.46% of their original sizes. [2018-12-09 04:08:44,454 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 04:08:44,486 INFO L418 sIntCurrentIteration]: We unified 367 AI predicates to 367 [2018-12-09 04:08:44,486 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 04:08:44,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 04:08:44,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-09 04:08:44,487 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:08:44,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 04:08:44,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 04:08:44,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 04:08:44,487 INFO L87 Difference]: Start difference. First operand 2418 states and 3469 transitions. Second operand 10 states. [2018-12-09 04:10:06,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:10:06,618 INFO L93 Difference]: Finished difference Result 5891 states and 8540 transitions. [2018-12-09 04:10:06,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-09 04:10:06,618 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 368 [2018-12-09 04:10:06,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:10:06,625 INFO L225 Difference]: With dead ends: 5891 [2018-12-09 04:10:06,625 INFO L226 Difference]: Without dead ends: 3816 [2018-12-09 04:10:06,628 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 377 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-12-09 04:10:06,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3816 states. [2018-12-09 04:10:06,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3816 to 3458. [2018-12-09 04:10:06,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3458 states. [2018-12-09 04:10:06,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3458 states to 3458 states and 4617 transitions. [2018-12-09 04:10:06,697 INFO L78 Accepts]: Start accepts. Automaton has 3458 states and 4617 transitions. Word has length 368 [2018-12-09 04:10:06,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:10:06,698 INFO L480 AbstractCegarLoop]: Abstraction has 3458 states and 4617 transitions. [2018-12-09 04:10:06,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 04:10:06,698 INFO L276 IsEmpty]: Start isEmpty. Operand 3458 states and 4617 transitions. [2018-12-09 04:10:06,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2018-12-09 04:10:06,704 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:10:06,704 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:10:06,704 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:10:06,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:10:06,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1047245756, now seen corresponding path program 1 times [2018-12-09 04:10:06,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:10:06,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:10:06,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:10:06,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:10:06,706 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:10:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:10:07,188 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 243 proven. 123 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-12-09 04:10:07,188 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:10:07,188 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:10:07,189 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 517 with the following transitions: [2018-12-09 04:10:07,189 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:10:07,192 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:10:07,192 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:10:07,337 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 04:10:07,337 INFO L272 AbstractInterpreter]: Visited 248 different actions 490 times. Merged at 4 different actions 4 times. Never widened. Performed 5191 root evaluator evaluations with a maximum evaluation depth of 10. Performed 5191 inverse root evaluator evaluations with a maximum inverse evaluation depth of 10. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-09 04:10:07,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:10:07,342 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 04:10:07,573 INFO L227 lantSequenceWeakener]: Weakened 513 states. On average, predicates are now at 77.61% of their original sizes. [2018-12-09 04:10:07,573 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 04:10:07,615 INFO L418 sIntCurrentIteration]: We unified 515 AI predicates to 515 [2018-12-09 04:10:07,615 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 04:10:07,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 04:10:07,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 16 [2018-12-09 04:10:07,616 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:10:07,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 04:10:07,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 04:10:07,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 04:10:07,617 INFO L87 Difference]: Start difference. First operand 3458 states and 4617 transitions. Second operand 10 states. [2018-12-09 04:11:29,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:11:29,404 INFO L93 Difference]: Finished difference Result 6914 states and 9354 transitions. [2018-12-09 04:11:29,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 04:11:29,404 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 516 [2018-12-09 04:11:29,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:11:29,409 INFO L225 Difference]: With dead ends: 6914 [2018-12-09 04:11:29,409 INFO L226 Difference]: Without dead ends: 3799 [2018-12-09 04:11:29,412 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 523 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-09 04:11:29,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3799 states. [2018-12-09 04:11:29,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3799 to 3797. [2018-12-09 04:11:29,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3797 states. [2018-12-09 04:11:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3797 states to 3797 states and 4972 transitions. [2018-12-09 04:11:29,471 INFO L78 Accepts]: Start accepts. Automaton has 3797 states and 4972 transitions. Word has length 516 [2018-12-09 04:11:29,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:11:29,472 INFO L480 AbstractCegarLoop]: Abstraction has 3797 states and 4972 transitions. [2018-12-09 04:11:29,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 04:11:29,472 INFO L276 IsEmpty]: Start isEmpty. Operand 3797 states and 4972 transitions. [2018-12-09 04:11:29,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2018-12-09 04:11:29,486 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:11:29,486 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, 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:11:29,486 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:11:29,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:11:29,487 INFO L82 PathProgramCache]: Analyzing trace with hash 135352452, now seen corresponding path program 1 times [2018-12-09 04:11:29,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:11:29,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:11:29,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:11:29,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:11:29,488 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:11:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:11:30,266 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 277 proven. 223 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-12-09 04:11:30,266 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:11:30,266 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:11:30,266 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 608 with the following transitions: [2018-12-09 04:11:30,267 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:11:30,270 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:11:30,270 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:11:30,717 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 04:11:30,717 INFO L272 AbstractInterpreter]: Visited 250 different actions 1240 times. Merged at 8 different actions 33 times. Never widened. Performed 15012 root evaluator evaluations with a maximum evaluation depth of 17. Performed 15012 inverse root evaluator evaluations with a maximum inverse evaluation depth of 17. Found 9 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 04:11:30,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:11:30,719 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 04:11:30,719 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:11:30,719 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:11:30,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:11:30,726 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 04:11:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:11:30,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:11:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 584 proven. 2 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2018-12-09 04:11:31,000 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 04:11:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 277 proven. 223 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-12-09 04:11:31,300 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 04:11:31,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 18 [2018-12-09 04:11:31,300 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 04:11:31,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 04:11:31,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 04:11:31,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2018-12-09 04:11:31,301 INFO L87 Difference]: Start difference. First operand 3797 states and 4972 transitions. Second operand 15 states. [2018-12-09 04:11:36,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:11:36,802 INFO L93 Difference]: Finished difference Result 7883 states and 10624 transitions. [2018-12-09 04:11:36,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-12-09 04:11:36,802 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 607 [2018-12-09 04:11:36,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:11:36,809 INFO L225 Difference]: With dead ends: 7883 [2018-12-09 04:11:36,809 INFO L226 Difference]: Without dead ends: 4229 [2018-12-09 04:11:36,813 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1286 GetRequests, 1234 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 770 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=629, Invalid=2233, Unknown=0, NotChecked=0, Total=2862 [2018-12-09 04:11:36,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4229 states. [2018-12-09 04:11:36,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4229 to 3458. [2018-12-09 04:11:36,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3458 states. [2018-12-09 04:11:36,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3458 states to 3458 states and 3819 transitions. [2018-12-09 04:11:36,850 INFO L78 Accepts]: Start accepts. Automaton has 3458 states and 3819 transitions. Word has length 607 [2018-12-09 04:11:36,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:11:36,850 INFO L480 AbstractCegarLoop]: Abstraction has 3458 states and 3819 transitions. [2018-12-09 04:11:36,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 04:11:36,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3458 states and 3819 transitions. [2018-12-09 04:11:36,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2018-12-09 04:11:36,854 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:11:36,854 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:11:36,854 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:11:36,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:11:36,854 INFO L82 PathProgramCache]: Analyzing trace with hash 635033833, now seen corresponding path program 1 times [2018-12-09 04:11:36,854 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:11:36,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:11:36,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:11:36,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:11:36,855 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:11:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:11:37,147 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 190 proven. 389 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2018-12-09 04:11:37,147 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:11:37,147 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:11:37,147 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 625 with the following transitions: [2018-12-09 04:11:37,148 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:11:37,151 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:11:37,151 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:11:37,402 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 04:11:37,402 INFO L272 AbstractInterpreter]: Visited 257 different actions 763 times. Merged at 6 different actions 12 times. Never widened. Performed 8945 root evaluator evaluations with a maximum evaluation depth of 10. Performed 8945 inverse root evaluator evaluations with a maximum inverse evaluation depth of 10. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 04:11:37,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:11:37,403 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 04:11:37,691 INFO L227 lantSequenceWeakener]: Weakened 621 states. On average, predicates are now at 80.31% of their original sizes. [2018-12-09 04:11:37,691 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 04:11:37,726 INFO L418 sIntCurrentIteration]: We unified 623 AI predicates to 623 [2018-12-09 04:11:37,726 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 04:11:37,726 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 04:11:37,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-12-09 04:11:37,726 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:11:37,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 04:11:37,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 04:11:37,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 04:11:37,727 INFO L87 Difference]: Start difference. First operand 3458 states and 3819 transitions. Second operand 9 states. [2018-12-09 04:12:28,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:12:28,090 INFO L93 Difference]: Finished difference Result 6941 states and 7731 transitions. [2018-12-09 04:12:28,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 04:12:28,090 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 624 [2018-12-09 04:12:28,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:12:28,096 INFO L225 Difference]: With dead ends: 6941 [2018-12-09 04:12:28,096 INFO L226 Difference]: Without dead ends: 4165 [2018-12-09 04:12:28,098 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 630 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-12-09 04:12:28,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4165 states. [2018-12-09 04:12:28,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4165 to 3475. [2018-12-09 04:12:28,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3475 states. [2018-12-09 04:12:28,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 3813 transitions. [2018-12-09 04:12:28,129 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 3813 transitions. Word has length 624 [2018-12-09 04:12:28,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:12:28,130 INFO L480 AbstractCegarLoop]: Abstraction has 3475 states and 3813 transitions. [2018-12-09 04:12:28,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 04:12:28,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 3813 transitions. [2018-12-09 04:12:28,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2018-12-09 04:12:28,134 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:12:28,134 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:12:28,134 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:12:28,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:28,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1486348371, now seen corresponding path program 1 times [2018-12-09 04:12:28,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:12:28,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:28,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:28,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:28,135 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:12:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 472 proven. 511 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-12-09 04:12:28,840 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:28,841 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:12:28,841 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 754 with the following transitions: [2018-12-09 04:12:28,841 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:12:28,843 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:12:28,843 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:12:29,349 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 04:12:29,349 INFO L272 AbstractInterpreter]: Visited 259 different actions 1289 times. Merged at 9 different actions 37 times. Never widened. Performed 15726 root evaluator evaluations with a maximum evaluation depth of 18. Performed 15726 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 11 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 04:12:29,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:29,350 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 04:12:29,350 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:29,350 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:12:29,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:29,356 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 04:12:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:29,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:12:29,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 943 proven. 2 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2018-12-09 04:12:29,642 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 04:12:29,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 571 proven. 110 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2018-12-09 04:12:29,885 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 04:12:29,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 17 [2018-12-09 04:12:29,886 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 04:12:29,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 04:12:29,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 04:12:29,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-12-09 04:12:29,887 INFO L87 Difference]: Start difference. First operand 3475 states and 3813 transitions. Second operand 15 states. [2018-12-09 04:12:34,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:12:34,030 INFO L93 Difference]: Finished difference Result 8749 states and 9850 transitions. [2018-12-09 04:12:34,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-12-09 04:12:34,031 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 753 [2018-12-09 04:12:34,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:12:34,039 INFO L225 Difference]: With dead ends: 8749 [2018-12-09 04:12:34,039 INFO L226 Difference]: Without dead ends: 5956 [2018-12-09 04:12:34,043 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1594 GetRequests, 1536 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 958 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=661, Invalid=2645, Unknown=0, NotChecked=0, Total=3306 [2018-12-09 04:12:34,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5956 states. [2018-12-09 04:12:34,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5956 to 5533. [2018-12-09 04:12:34,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5533 states. [2018-12-09 04:12:34,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5533 states to 5533 states and 6064 transitions. [2018-12-09 04:12:34,093 INFO L78 Accepts]: Start accepts. Automaton has 5533 states and 6064 transitions. Word has length 753 [2018-12-09 04:12:34,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:12:34,094 INFO L480 AbstractCegarLoop]: Abstraction has 5533 states and 6064 transitions. [2018-12-09 04:12:34,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 04:12:34,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5533 states and 6064 transitions. [2018-12-09 04:12:34,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1080 [2018-12-09 04:12:34,101 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:12:34,102 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 04:12:34,102 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:12:34,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:34,102 INFO L82 PathProgramCache]: Analyzing trace with hash -379927405, now seen corresponding path program 1 times [2018-12-09 04:12:34,102 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:12:34,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:34,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:34,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:34,103 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:12:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:34,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2633 backedges. 768 proven. 223 refuted. 0 times theorem prover too weak. 1642 trivial. 0 not checked. [2018-12-09 04:12:34,584 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:34,584 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:12:34,584 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1080 with the following transitions: [2018-12-09 04:12:34,584 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [964], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1288], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:12:34,586 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:12:34,586 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:12:35,045 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 04:12:35,045 INFO L272 AbstractInterpreter]: Visited 253 different actions 1019 times. Merged at 11 different actions 39 times. Widened at 1 different actions 1 times. Performed 11944 root evaluator evaluations with a maximum evaluation depth of 18. Performed 11944 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 13 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-09 04:12:35,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:35,050 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 04:12:35,050 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:35,050 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:12:35,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:35,056 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 04:12:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:35,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:12:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2633 backedges. 1750 proven. 2 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2018-12-09 04:12:35,464 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 04:12:35,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2633 backedges. 768 proven. 223 refuted. 0 times theorem prover too weak. 1642 trivial. 0 not checked. [2018-12-09 04:12:35,875 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 04:12:35,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-12-09 04:12:35,876 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 04:12:35,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 04:12:35,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 04:12:35,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-12-09 04:12:35,877 INFO L87 Difference]: Start difference. First operand 5533 states and 6064 transitions. Second operand 9 states. [2018-12-09 04:12:37,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:12:37,223 INFO L93 Difference]: Finished difference Result 12122 states and 13488 transitions. [2018-12-09 04:12:37,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 04:12:37,223 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1079 [2018-12-09 04:12:37,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:12:37,235 INFO L225 Difference]: With dead ends: 12122 [2018-12-09 04:12:37,235 INFO L226 Difference]: Without dead ends: 7271 [2018-12-09 04:12:37,241 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2175 GetRequests, 2159 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2018-12-09 04:12:37,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7271 states. [2018-12-09 04:12:37,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7271 to 6903. [2018-12-09 04:12:37,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6903 states. [2018-12-09 04:12:37,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6903 states to 6903 states and 7510 transitions. [2018-12-09 04:12:37,297 INFO L78 Accepts]: Start accepts. Automaton has 6903 states and 7510 transitions. Word has length 1079 [2018-12-09 04:12:37,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:12:37,297 INFO L480 AbstractCegarLoop]: Abstraction has 6903 states and 7510 transitions. [2018-12-09 04:12:37,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 04:12:37,297 INFO L276 IsEmpty]: Start isEmpty. Operand 6903 states and 7510 transitions. [2018-12-09 04:12:37,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1081 [2018-12-09 04:12:37,305 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:12:37,305 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 04:12:37,305 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:12:37,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:37,305 INFO L82 PathProgramCache]: Analyzing trace with hash 85379184, now seen corresponding path program 1 times [2018-12-09 04:12:37,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:12:37,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:37,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:37,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:37,306 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:12:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:37,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2639 backedges. 943 proven. 110 refuted. 0 times theorem prover too weak. 1586 trivial. 0 not checked. [2018-12-09 04:12:37,836 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:37,836 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:12:37,836 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1081 with the following transitions: [2018-12-09 04:12:37,836 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [964], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1288], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:12:37,838 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:12:37,838 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:12:38,291 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 04:12:38,291 INFO L272 AbstractInterpreter]: Visited 253 different actions 1017 times. Merged at 11 different actions 37 times. Widened at 1 different actions 1 times. Performed 11922 root evaluator evaluations with a maximum evaluation depth of 18. Performed 11922 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 13 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-09 04:12:38,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:38,294 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 04:12:38,294 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:38,294 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:12:38,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:38,300 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 04:12:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:38,415 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:12:38,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2639 backedges. 1497 proven. 2 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2018-12-09 04:12:38,720 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 04:12:39,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2639 backedges. 943 proven. 110 refuted. 0 times theorem prover too weak. 1586 trivial. 0 not checked. [2018-12-09 04:12:39,156 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 04:12:39,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-12-09 04:12:39,156 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 04:12:39,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 04:12:39,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 04:12:39,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-12-09 04:12:39,157 INFO L87 Difference]: Start difference. First operand 6903 states and 7510 transitions. Second operand 9 states. [2018-12-09 04:12:41,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:12:41,347 INFO L93 Difference]: Finished difference Result 15681 states and 17891 transitions. [2018-12-09 04:12:41,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 04:12:41,347 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1080 [2018-12-09 04:12:41,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:12:41,369 INFO L225 Difference]: With dead ends: 15681 [2018-12-09 04:12:41,369 INFO L226 Difference]: Without dead ends: 9460 [2018-12-09 04:12:41,379 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2188 GetRequests, 2166 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2018-12-09 04:12:41,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9460 states. [2018-12-09 04:12:41,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9460 to 9414. [2018-12-09 04:12:41,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9414 states. [2018-12-09 04:12:41,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9414 states to 9414 states and 10408 transitions. [2018-12-09 04:12:41,485 INFO L78 Accepts]: Start accepts. Automaton has 9414 states and 10408 transitions. Word has length 1080 [2018-12-09 04:12:41,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:12:41,486 INFO L480 AbstractCegarLoop]: Abstraction has 9414 states and 10408 transitions. [2018-12-09 04:12:41,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 04:12:41,486 INFO L276 IsEmpty]: Start isEmpty. Operand 9414 states and 10408 transitions. [2018-12-09 04:12:41,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2018-12-09 04:12:41,495 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:12:41,496 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 04:12:41,496 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:12:41,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:41,496 INFO L82 PathProgramCache]: Analyzing trace with hash 819358287, now seen corresponding path program 1 times [2018-12-09 04:12:41,496 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:12:41,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:41,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:41,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:41,497 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:12:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2375 backedges. 848 proven. 110 refuted. 0 times theorem prover too weak. 1417 trivial. 0 not checked. [2018-12-09 04:12:42,031 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:42,031 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:12:42,031 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1091 with the following transitions: [2018-12-09 04:12:42,031 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [964], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1176], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1288], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:12:42,033 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:12:42,033 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:12:42,565 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 04:12:42,565 INFO L272 AbstractInterpreter]: Visited 252 different actions 1007 times. Merged at 10 different actions 31 times. Widened at 1 different actions 1 times. Performed 11819 root evaluator evaluations with a maximum evaluation depth of 18. Performed 11819 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 11 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-09 04:12:42,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:42,570 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 04:12:42,570 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:42,570 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:12:42,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:42,575 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 04:12:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:42,701 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:12:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2375 backedges. 1336 proven. 2 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2018-12-09 04:12:43,040 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 04:12:43,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2375 backedges. 848 proven. 110 refuted. 0 times theorem prover too weak. 1417 trivial. 0 not checked. [2018-12-09 04:12:43,456 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 04:12:43,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2018-12-09 04:12:43,457 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 04:12:43,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 04:12:43,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 04:12:43,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 04:12:43,458 INFO L87 Difference]: Start difference. First operand 9414 states and 10408 transitions. Second operand 10 states. [2018-12-09 04:12:44,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:12:44,953 INFO L93 Difference]: Finished difference Result 17735 states and 19616 transitions. [2018-12-09 04:12:44,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-09 04:12:44,953 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1090 [2018-12-09 04:12:44,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:12:44,965 INFO L225 Difference]: With dead ends: 17735 [2018-12-09 04:12:44,965 INFO L226 Difference]: Without dead ends: 9340 [2018-12-09 04:12:44,973 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2211 GetRequests, 2187 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2018-12-09 04:12:44,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9340 states. [2018-12-09 04:12:45,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9340 to 8977. [2018-12-09 04:12:45,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8977 states. [2018-12-09 04:12:45,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8977 states to 8977 states and 9660 transitions. [2018-12-09 04:12:45,045 INFO L78 Accepts]: Start accepts. Automaton has 8977 states and 9660 transitions. Word has length 1090 [2018-12-09 04:12:45,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:12:45,046 INFO L480 AbstractCegarLoop]: Abstraction has 8977 states and 9660 transitions. [2018-12-09 04:12:45,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 04:12:45,046 INFO L276 IsEmpty]: Start isEmpty. Operand 8977 states and 9660 transitions. [2018-12-09 04:12:45,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1112 [2018-12-09 04:12:45,054 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:12:45,055 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:12:45,055 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:12:45,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:45,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1358247243, now seen corresponding path program 1 times [2018-12-09 04:12:45,055 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:12:45,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:45,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:45,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:45,056 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:12:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:45,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2011 backedges. 958 proven. 598 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2018-12-09 04:12:45,743 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:45,743 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:12:45,744 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1112 with the following transitions: [2018-12-09 04:12:45,744 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1176], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1288], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1488], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:12:45,746 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:12:45,746 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:12:46,492 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 04:12:46,492 INFO L272 AbstractInterpreter]: Visited 285 different actions 1137 times. Merged at 9 different actions 29 times. Never widened. Performed 13703 root evaluator evaluations with a maximum evaluation depth of 22. Performed 13703 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 10 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-09 04:12:46,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:46,494 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 04:12:46,494 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:46,494 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:12:46,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:46,500 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 04:12:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:46,620 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:12:46,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2011 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 1774 trivial. 0 not checked. [2018-12-09 04:12:46,974 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 04:12:47,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2011 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 1774 trivial. 0 not checked. [2018-12-09 04:12:47,310 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 04:12:47,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-12-09 04:12:47,311 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:12:47,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 04:12:47,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 04:12:47,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-12-09 04:12:47,312 INFO L87 Difference]: Start difference. First operand 8977 states and 9660 transitions. Second operand 3 states. [2018-12-09 04:12:47,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:12:47,908 INFO L93 Difference]: Finished difference Result 17272 states and 18635 transitions. [2018-12-09 04:12:47,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 04:12:47,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1111 [2018-12-09 04:12:47,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:12:47,921 INFO L225 Difference]: With dead ends: 17272 [2018-12-09 04:12:47,922 INFO L226 Difference]: Without dead ends: 8977 [2018-12-09 04:12:47,930 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2234 GetRequests, 2223 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-12-09 04:12:47,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8977 states. [2018-12-09 04:12:47,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8977 to 8977. [2018-12-09 04:12:47,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8977 states. [2018-12-09 04:12:47,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8977 states to 8977 states and 9605 transitions. [2018-12-09 04:12:47,997 INFO L78 Accepts]: Start accepts. Automaton has 8977 states and 9605 transitions. Word has length 1111 [2018-12-09 04:12:47,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:12:47,998 INFO L480 AbstractCegarLoop]: Abstraction has 8977 states and 9605 transitions. [2018-12-09 04:12:47,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 04:12:47,998 INFO L276 IsEmpty]: Start isEmpty. Operand 8977 states and 9605 transitions. [2018-12-09 04:12:48,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1183 [2018-12-09 04:12:48,007 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:12:48,007 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:12:48,007 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:12:48,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:48,008 INFO L82 PathProgramCache]: Analyzing trace with hash 949226469, now seen corresponding path program 1 times [2018-12-09 04:12:48,008 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:12:48,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:48,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:48,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:48,008 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:12:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:48,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2411 backedges. 1232 proven. 647 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2018-12-09 04:12:48,824 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:48,824 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:12:48,825 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1183 with the following transitions: [2018-12-09 04:12:48,825 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [680], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1176], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1288], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1488], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:12:48,827 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:12:48,827 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:12:49,656 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 04:12:49,656 INFO L272 AbstractInterpreter]: Visited 286 different actions 1145 times. Merged at 9 different actions 33 times. Widened at 1 different actions 1 times. Performed 13840 root evaluator evaluations with a maximum evaluation depth of 22. Performed 13840 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 11 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-09 04:12:49,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:49,658 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 04:12:49,658 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:49,658 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:12:49,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:49,664 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 04:12:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:49,781 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:12:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2411 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 2126 trivial. 0 not checked. [2018-12-09 04:12:50,136 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 04:12:50,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2411 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 2126 trivial. 0 not checked. [2018-12-09 04:12:50,513 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 04:12:50,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-12-09 04:12:50,514 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:12:50,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 04:12:50,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 04:12:50,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-12-09 04:12:50,514 INFO L87 Difference]: Start difference. First operand 8977 states and 9605 transitions. Second operand 3 states. [2018-12-09 04:12:51,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:12:51,074 INFO L93 Difference]: Finished difference Result 17272 states and 18518 transitions. [2018-12-09 04:12:51,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 04:12:51,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1182 [2018-12-09 04:12:51,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:12:51,084 INFO L225 Difference]: With dead ends: 17272 [2018-12-09 04:12:51,084 INFO L226 Difference]: Without dead ends: 8977 [2018-12-09 04:12:51,090 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2378 GetRequests, 2366 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-12-09 04:12:51,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8977 states. [2018-12-09 04:12:51,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8977 to 8975. [2018-12-09 04:12:51,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8975 states. [2018-12-09 04:12:51,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8975 states to 8975 states and 9438 transitions. [2018-12-09 04:12:51,153 INFO L78 Accepts]: Start accepts. Automaton has 8975 states and 9438 transitions. Word has length 1182 [2018-12-09 04:12:51,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:12:51,154 INFO L480 AbstractCegarLoop]: Abstraction has 8975 states and 9438 transitions. [2018-12-09 04:12:51,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 04:12:51,154 INFO L276 IsEmpty]: Start isEmpty. Operand 8975 states and 9438 transitions. [2018-12-09 04:12:51,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1327 [2018-12-09 04:12:51,164 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:12:51,164 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, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:12:51,164 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:12:51,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:51,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1793878195, now seen corresponding path program 1 times [2018-12-09 04:12:51,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:12:51,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:51,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:51,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:12:51,165 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:12:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:52,309 INFO L134 CoverageAnalysis]: Checked inductivity of 3807 backedges. 1406 proven. 2 refuted. 0 times theorem prover too weak. 2399 trivial. 0 not checked. [2018-12-09 04:12:52,309 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:52,309 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:12:52,310 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1327 with the following transitions: [2018-12-09 04:12:52,310 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [964], [965], [969], [972], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1268], [1269], [1273], [1277], [1281], [1285], [1288], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:12:52,312 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:12:52,312 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:12:52,750 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 04:12:52,750 INFO L272 AbstractInterpreter]: Visited 254 different actions 1024 times. Merged at 12 different actions 40 times. Never widened. Performed 11980 root evaluator evaluations with a maximum evaluation depth of 18. Performed 11980 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 14 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-09 04:12:52,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:12:52,752 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 04:12:52,753 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:12:52,753 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:12:52,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:12:52,759 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 04:12:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:12:52,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:12:53,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3807 backedges. 2593 proven. 6 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2018-12-09 04:12:53,473 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 04:12:54,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3807 backedges. 1525 proven. 360 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2018-12-09 04:12:54,658 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 04:12:54,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2018-12-09 04:12:54,658 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 04:12:54,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 04:12:54,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 04:12:54,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-09 04:12:54,659 INFO L87 Difference]: Start difference. First operand 8975 states and 9438 transitions. Second operand 14 states. [2018-12-09 04:13:00,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:13:00,633 INFO L93 Difference]: Finished difference Result 19705 states and 20827 transitions. [2018-12-09 04:13:00,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-12-09 04:13:00,633 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 1326 [2018-12-09 04:13:00,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:13:00,643 INFO L225 Difference]: With dead ends: 19705 [2018-12-09 04:13:00,643 INFO L226 Difference]: Without dead ends: 10714 [2018-12-09 04:13:00,648 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2736 GetRequests, 2677 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=641, Invalid=2781, Unknown=0, NotChecked=0, Total=3422 [2018-12-09 04:13:00,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10714 states. [2018-12-09 04:13:00,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10714 to 10652. [2018-12-09 04:13:00,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10652 states. [2018-12-09 04:13:00,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10652 states to 10652 states and 11069 transitions. [2018-12-09 04:13:00,721 INFO L78 Accepts]: Start accepts. Automaton has 10652 states and 11069 transitions. Word has length 1326 [2018-12-09 04:13:00,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:13:00,722 INFO L480 AbstractCegarLoop]: Abstraction has 10652 states and 11069 transitions. [2018-12-09 04:13:00,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 04:13:00,722 INFO L276 IsEmpty]: Start isEmpty. Operand 10652 states and 11069 transitions. [2018-12-09 04:13:00,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1820 [2018-12-09 04:13:00,739 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:13:00,740 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:13:00,740 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:13:00,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:13:00,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1414444609, now seen corresponding path program 1 times [2018-12-09 04:13:00,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:13:00,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:13:00,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:13:00,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:13:00,741 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:13:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:13:02,591 INFO L134 CoverageAnalysis]: Checked inductivity of 6114 backedges. 1262 proven. 702 refuted. 0 times theorem prover too weak. 4150 trivial. 0 not checked. [2018-12-09 04:13:02,592 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:13:02,592 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:13:02,592 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1820 with the following transitions: [2018-12-09 04:13:02,592 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [680], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1056], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1176], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1268], [1269], [1273], [1277], [1281], [1285], [1288], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1412], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1488], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:13:02,594 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:13:02,594 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:13:03,440 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 04:13:03,440 INFO L272 AbstractInterpreter]: Visited 289 different actions 1155 times. Merged at 10 different actions 31 times. Never widened. Performed 13964 root evaluator evaluations with a maximum evaluation depth of 22. Performed 13964 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 14 fixpoints after 7 different actions. Largest state had 24 variables. [2018-12-09 04:13:03,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:13:03,443 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 04:13:03,443 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:13:03,443 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:13:03,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:13:03,449 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 04:13:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:13:03,627 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:13:04,748 INFO L134 CoverageAnalysis]: Checked inductivity of 6114 backedges. 4176 proven. 2 refuted. 0 times theorem prover too weak. 1936 trivial. 0 not checked. [2018-12-09 04:13:04,748 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 04:13:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6114 backedges. 1262 proven. 702 refuted. 0 times theorem prover too weak. 4150 trivial. 0 not checked. [2018-12-09 04:13:07,317 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 04:13:07,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-12-09 04:13:07,317 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 04:13:07,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 04:13:07,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 04:13:07,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-12-09 04:13:07,319 INFO L87 Difference]: Start difference. First operand 10652 states and 11069 transitions. Second operand 11 states. [2018-12-09 04:13:09,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:13:09,872 INFO L93 Difference]: Finished difference Result 21019 states and 21917 transitions. [2018-12-09 04:13:09,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-09 04:13:09,872 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1819 [2018-12-09 04:13:09,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:13:09,884 INFO L225 Difference]: With dead ends: 21019 [2018-12-09 04:13:09,884 INFO L226 Difference]: Without dead ends: 11049 [2018-12-09 04:13:09,892 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3680 GetRequests, 3650 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=660, Unknown=0, NotChecked=0, Total=870 [2018-12-09 04:13:09,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11049 states. [2018-12-09 04:13:09,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11049 to 10652. [2018-12-09 04:13:09,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10652 states. [2018-12-09 04:13:09,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10652 states to 10652 states and 11053 transitions. [2018-12-09 04:13:09,972 INFO L78 Accepts]: Start accepts. Automaton has 10652 states and 11053 transitions. Word has length 1819 [2018-12-09 04:13:09,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:13:09,972 INFO L480 AbstractCegarLoop]: Abstraction has 10652 states and 11053 transitions. [2018-12-09 04:13:09,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 04:13:09,972 INFO L276 IsEmpty]: Start isEmpty. Operand 10652 states and 11053 transitions. [2018-12-09 04:13:09,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1998 [2018-12-09 04:13:09,991 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:13:09,992 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:13:09,992 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:13:09,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:13:09,993 INFO L82 PathProgramCache]: Analyzing trace with hash 805593613, now seen corresponding path program 1 times [2018-12-09 04:13:09,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:13:09,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:13:09,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:13:09,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:13:09,994 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:13:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:13:15,931 INFO L134 CoverageAnalysis]: Checked inductivity of 7860 backedges. 1258 proven. 4991 refuted. 0 times theorem prover too weak. 1611 trivial. 0 not checked. [2018-12-09 04:13:15,931 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:13:15,931 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:13:15,932 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1998 with the following transitions: [2018-12-09 04:13:15,932 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [680], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1056], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1148], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1268], [1269], [1273], [1277], [1281], [1285], [1288], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1412], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1488], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:13:15,935 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:13:15,935 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:13:16,716 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 04:13:16,717 INFO L272 AbstractInterpreter]: Visited 291 different actions 1169 times. Merged at 11 different actions 37 times. Widened at 1 different actions 1 times. Performed 14112 root evaluator evaluations with a maximum evaluation depth of 22. Performed 14112 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 17 fixpoints after 10 different actions. Largest state had 24 variables. [2018-12-09 04:13:16,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:13:16,719 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 04:13:16,719 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:13:16,719 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:13:16,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:13:16,724 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 04:13:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:13:16,918 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:13:18,001 INFO L134 CoverageAnalysis]: Checked inductivity of 7860 backedges. 4631 proven. 2 refuted. 0 times theorem prover too weak. 3227 trivial. 0 not checked. [2018-12-09 04:13:18,001 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 04:13:19,467 INFO L134 CoverageAnalysis]: Checked inductivity of 7860 backedges. 1013 proven. 636 refuted. 0 times theorem prover too weak. 6211 trivial. 0 not checked. [2018-12-09 04:13:19,483 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 04:13:19,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 5, 5] total 30 [2018-12-09 04:13:19,484 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 04:13:19,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-12-09 04:13:19,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-12-09 04:13:19,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2018-12-09 04:13:19,485 INFO L87 Difference]: Start difference. First operand 10652 states and 11053 transitions. Second operand 28 states. [2018-12-09 04:13:33,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:13:33,285 INFO L93 Difference]: Finished difference Result 25831 states and 27095 transitions. [2018-12-09 04:13:33,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-12-09 04:13:33,286 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 1997 [2018-12-09 04:13:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:13:33,308 INFO L225 Difference]: With dead ends: 25831 [2018-12-09 04:13:33,308 INFO L226 Difference]: Without dead ends: 15522 [2018-12-09 04:13:33,317 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4148 GetRequests, 4048 SyntacticMatches, 6 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2981 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1382, Invalid=7738, Unknown=0, NotChecked=0, Total=9120 [2018-12-09 04:13:33,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15522 states. [2018-12-09 04:13:33,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15522 to 15105. [2018-12-09 04:13:33,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15105 states. [2018-12-09 04:13:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15105 states to 15105 states and 15671 transitions. [2018-12-09 04:13:33,445 INFO L78 Accepts]: Start accepts. Automaton has 15105 states and 15671 transitions. Word has length 1997 [2018-12-09 04:13:33,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:13:33,446 INFO L480 AbstractCegarLoop]: Abstraction has 15105 states and 15671 transitions. [2018-12-09 04:13:33,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-12-09 04:13:33,446 INFO L276 IsEmpty]: Start isEmpty. Operand 15105 states and 15671 transitions. [2018-12-09 04:13:33,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2093 [2018-12-09 04:13:33,468 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:13:33,469 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:13:33,469 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:13:33,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:13:33,469 INFO L82 PathProgramCache]: Analyzing trace with hash 795509130, now seen corresponding path program 1 times [2018-12-09 04:13:33,469 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:13:33,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:13:33,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:13:33,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:13:33,470 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:13:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:13:39,679 INFO L134 CoverageAnalysis]: Checked inductivity of 8521 backedges. 1362 proven. 5591 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2018-12-09 04:13:39,679 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:13:39,679 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:13:39,679 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 2093 with the following transitions: [2018-12-09 04:13:39,679 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [680], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [728], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1056], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1148], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1176], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1268], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1296], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1412], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1488], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:13:39,681 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:13:39,681 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:13:40,529 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 04:13:40,530 INFO L272 AbstractInterpreter]: Visited 291 different actions 1165 times. Merged at 11 different actions 33 times. Never widened. Performed 14059 root evaluator evaluations with a maximum evaluation depth of 22. Performed 14059 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 16 fixpoints after 8 different actions. Largest state had 24 variables. [2018-12-09 04:13:40,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:13:40,531 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 04:13:40,531 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:13:40,531 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:13:40,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:13:40,537 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 04:13:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:13:40,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:13:41,902 INFO L134 CoverageAnalysis]: Checked inductivity of 8521 backedges. 525 proven. 0 refuted. 0 times theorem prover too weak. 7996 trivial. 0 not checked. [2018-12-09 04:13:41,902 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 04:13:42,953 INFO L134 CoverageAnalysis]: Checked inductivity of 8521 backedges. 525 proven. 0 refuted. 0 times theorem prover too weak. 7996 trivial. 0 not checked. [2018-12-09 04:13:42,969 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 04:13:42,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [25] total 27 [2018-12-09 04:13:42,969 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:13:42,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 04:13:42,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 04:13:42,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=605, Unknown=0, NotChecked=0, Total=702 [2018-12-09 04:13:42,970 INFO L87 Difference]: Start difference. First operand 15105 states and 15671 transitions. Second operand 3 states. [2018-12-09 04:13:44,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:13:44,286 INFO L93 Difference]: Finished difference Result 15446 states and 16013 transitions. [2018-12-09 04:13:44,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 04:13:44,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2092 [2018-12-09 04:13:44,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:13:44,301 INFO L225 Difference]: With dead ends: 15446 [2018-12-09 04:13:44,301 INFO L226 Difference]: Without dead ends: 15103 [2018-12-09 04:13:44,305 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4218 GetRequests, 4188 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=605, Unknown=0, NotChecked=0, Total=702 [2018-12-09 04:13:44,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15103 states. [2018-12-09 04:13:44,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15103 to 15103. [2018-12-09 04:13:44,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15103 states. [2018-12-09 04:13:44,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15103 states to 15103 states and 15666 transitions. [2018-12-09 04:13:44,442 INFO L78 Accepts]: Start accepts. Automaton has 15103 states and 15666 transitions. Word has length 2092 [2018-12-09 04:13:44,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:13:44,443 INFO L480 AbstractCegarLoop]: Abstraction has 15103 states and 15666 transitions. [2018-12-09 04:13:44,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 04:13:44,443 INFO L276 IsEmpty]: Start isEmpty. Operand 15103 states and 15666 transitions. [2018-12-09 04:13:44,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2140 [2018-12-09 04:13:44,468 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:13:44,468 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, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 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, 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, 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] [2018-12-09 04:13:44,469 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:13:44,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:13:44,469 INFO L82 PathProgramCache]: Analyzing trace with hash 2097518000, now seen corresponding path program 1 times [2018-12-09 04:13:44,469 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:13:44,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:13:44,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:13:44,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:13:44,470 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:13:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:13:50,807 INFO L134 CoverageAnalysis]: Checked inductivity of 9369 backedges. 3103 proven. 5464 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2018-12-09 04:13:50,807 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:13:50,808 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:13:50,808 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 2140 with the following transitions: [2018-12-09 04:13:50,808 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [680], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [728], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [824], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1028], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1056], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1148], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1176], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1296], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1412], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1488], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:13:50,810 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:13:50,810 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:13:51,654 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 04:13:51,654 INFO L272 AbstractInterpreter]: Visited 292 different actions 1172 times. Merged at 13 different actions 36 times. Never widened. Performed 14070 root evaluator evaluations with a maximum evaluation depth of 22. Performed 14070 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 17 fixpoints after 9 different actions. Largest state had 24 variables. [2018-12-09 04:13:51,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:13:51,656 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 04:13:51,656 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:13:51,656 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:13:51,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:13:51,662 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 04:13:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:13:51,881 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:13:53,024 INFO L134 CoverageAnalysis]: Checked inductivity of 9369 backedges. 1685 proven. 2 refuted. 0 times theorem prover too weak. 7682 trivial. 0 not checked. [2018-12-09 04:13:53,024 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 04:13:54,336 INFO L134 CoverageAnalysis]: Checked inductivity of 9369 backedges. 1685 proven. 2 refuted. 0 times theorem prover too weak. 7682 trivial. 0 not checked. [2018-12-09 04:13:54,352 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 04:13:54,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 5, 5] total 37 [2018-12-09 04:13:54,352 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 04:13:54,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-12-09 04:13:54,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-12-09 04:13:54,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1172, Unknown=0, NotChecked=0, Total=1332 [2018-12-09 04:13:54,354 INFO L87 Difference]: Start difference. First operand 15103 states and 15666 transitions. Second operand 35 states. [2018-12-09 04:13:59,281 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-12-09 04:14:12,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:14:12,845 INFO L93 Difference]: Finished difference Result 34423 states and 36044 transitions. [2018-12-09 04:14:12,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2018-12-09 04:14:12,845 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 2139 [2018-12-09 04:14:12,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:14:12,869 INFO L225 Difference]: With dead ends: 34423 [2018-12-09 04:14:12,869 INFO L226 Difference]: Without dead ends: 20692 [2018-12-09 04:14:12,881 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4525 GetRequests, 4370 SyntacticMatches, 4 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8666 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=3124, Invalid=20132, Unknown=0, NotChecked=0, Total=23256 [2018-12-09 04:14:12,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20692 states. [2018-12-09 04:14:13,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20692 to 19569. [2018-12-09 04:14:13,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19569 states. [2018-12-09 04:14:13,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19569 states to 19569 states and 20263 transitions. [2018-12-09 04:14:13,052 INFO L78 Accepts]: Start accepts. Automaton has 19569 states and 20263 transitions. Word has length 2139 [2018-12-09 04:14:13,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:14:13,053 INFO L480 AbstractCegarLoop]: Abstraction has 19569 states and 20263 transitions. [2018-12-09 04:14:13,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-12-09 04:14:13,053 INFO L276 IsEmpty]: Start isEmpty. Operand 19569 states and 20263 transitions. [2018-12-09 04:14:13,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2263 [2018-12-09 04:14:13,078 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:14:13,078 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, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:14:13,079 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:14:13,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:14:13,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1015691815, now seen corresponding path program 1 times [2018-12-09 04:14:13,079 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 04:14:13,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:14:13,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:14:13,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:14:13,080 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 04:14:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:14:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 9670 backedges. 1803 proven. 4666 refuted. 0 times theorem prover too weak. 3201 trivial. 0 not checked. [2018-12-09 04:14:17,943 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:14:17,943 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 04:14:17,943 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 2263 with the following transitions: [2018-12-09 04:14:17,943 INFO L205 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [503], [505], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [964], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1044], [1045], [1049], [1053], [1056], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1412], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1444], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1489], [1493], [1497], [1501], [1505], [1509], [1513], [1517], [1521], [1525], [1529], [1532], [1533], [1537], [1540], [1552], [1556], [1565], [1569], [1571], [1578], [1579], [1580], [1582], [1583] [2018-12-09 04:14:17,946 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 04:14:17,946 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 04:14:18,635 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 04:14:18,635 INFO L272 AbstractInterpreter]: Visited 305 different actions 1534 times. Merged at 13 different actions 52 times. Widened at 1 different actions 2 times. Performed 19114 root evaluator evaluations with a maximum evaluation depth of 18. Performed 19114 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 21 fixpoints after 8 different actions. Largest state had 24 variables. [2018-12-09 04:14:18,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:14:18,637 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 04:14:18,637 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 04:14:18,637 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/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 [2018-12-09 04:14:18,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:14:18,643 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 04:14:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:14:18,866 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:14:20,058 INFO L134 CoverageAnalysis]: Checked inductivity of 9670 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 9097 trivial. 0 not checked. [2018-12-09 04:14:20,058 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 04:14:21,272 INFO L134 CoverageAnalysis]: Checked inductivity of 9670 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 9097 trivial. 0 not checked. [2018-12-09 04:14:21,287 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 04:14:21,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [19] total 21 [2018-12-09 04:14:21,288 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 04:14:21,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 04:14:21,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 04:14:21,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2018-12-09 04:14:21,289 INFO L87 Difference]: Start difference. First operand 19569 states and 20263 transitions. Second operand 3 states. [2018-12-09 04:14:21,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:14:21,886 INFO L93 Difference]: Finished difference Result 36403 states and 37750 transitions. [2018-12-09 04:14:21,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 04:14:21,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2262 [2018-12-09 04:14:21,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:14:21,887 INFO L225 Difference]: With dead ends: 36403 [2018-12-09 04:14:21,887 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 04:14:21,904 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4549 GetRequests, 4528 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2018-12-09 04:14:21,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 04:14:21,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 04:14:21,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 04:14:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 04:14:21,904 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2262 [2018-12-09 04:14:21,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:14:21,905 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 04:14:21,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 04:14:21,905 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 04:14:21,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 04:14:21,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 04:14:21,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:22,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:22,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:22,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:22,269 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:22,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:22,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:22,458 WARN L180 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 480 DAG size of output: 441 [2018-12-09 04:14:22,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:22,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:22,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:22,872 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:22,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:23,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:23,026 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 04:14:23,341 WARN L180 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 460 [2018-12-09 04:14:25,170 WARN L180 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 449 DAG size of output: 71 [2018-12-09 04:14:26,191 WARN L180 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 75 [2018-12-09 04:14:27,301 WARN L180 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 423 DAG size of output: 75 [2018-12-09 04:14:29,736 WARN L180 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 461 DAG size of output: 114 [2018-12-09 04:14:32,137 WARN L180 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 466 DAG size of output: 68 [2018-12-09 04:14:32,138 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 04:14:32,138 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a16~0)| ~a16~0) (= ~a18~0 |old(~a18~0)|) (= |old(~a15~0)| ~a15~0) (= |old(~a12~0)| ~a12~0)) [2018-12-09 04:14:32,138 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 04:14:32,138 INFO L448 ceAbstractionStarter]: For program point L1497(lines 1497 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,138 INFO L448 ceAbstractionStarter]: For program point calculate_output2EXIT(lines 1494 1765) no Hoare annotation was computed. [2018-12-09 04:14:32,138 INFO L448 ceAbstractionStarter]: For program point L1687(lines 1687 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1704(lines 1704 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1638(lines 1638 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1663(lines 1663 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1597(lines 1597 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1721(lines 1721 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1622(lines 1622 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1746(lines 1746 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1515(lines 1515 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1573(lines 1573 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1540(lines 1540 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1656(lines 1656 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1739(lines 1739 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1566(lines 1566 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1591(lines 1591 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1715(lines 1715 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1682(lines 1682 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1616(lines 1616 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1699(lines 1699 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1633(lines 1633 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1534(lines 1534 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,139 INFO L448 ceAbstractionStarter]: For program point L1757(lines 1757 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1559(lines 1559 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1675(lines 1675 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1609(lines 1609 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1510(lines 1510 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1733(lines 1733 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L444 ceAbstractionStarter]: At program point calculate_output2ENTRY(lines 1494 1765) the Hoare annotation is: (let ((.cse6 (= ~a18~0 |old(~a18~0)|)) (.cse7 (= |old(~a12~0)| ~a12~0)) (.cse5 (= 4 |old(~a15~0)|)) (.cse4 (= 9 |old(~a16~0)|)) (.cse2 (= 3 |old(~a15~0)|)) (.cse3 (= 5 |old(~a12~0)|)) (.cse9 (= 8 |old(~a16~0)|))) (let ((.cse1 (and .cse2 .cse3 .cse9)) (.cse10 (not .cse4)) (.cse11 (not (= 7 |old(~a12~0)|))) (.cse8 (not .cse5)) (.cse0 (and (= |old(~a15~0)| ~a15~0) (= ~a16~0 |old(~a16~0)|) .cse6 .cse7))) (and (or .cse0 (or .cse1 (or (not .cse2) (not .cse3)))) (or (or .cse1 .cse4 .cse5) .cse0) (or (and (= |old(~a16~0)| ~a16~0) .cse6 (= ~a15~0 |old(~a15~0)|) .cse7) (or .cse5 (not (= 8 |old(~a12~0)|)))) (or .cse8 (not .cse9) .cse0) (or (< |old(~a12~0)| 9) (= 10 |old(~a16~0)|) .cse0) (or .cse8 .cse0 .cse10) (or .cse0 .cse11 .cse10 (< 0 (+ |old(~a18~0)| 156))) (or .cse5 .cse0 .cse11 (forall ((v_prenex_27 Int)) (let ((.cse12 (mod v_prenex_27 299932))) (or (<= 0 v_prenex_27) (= 0 .cse12) (< |old(~a18~0)| (+ .cse12 136)))))) (or .cse8 (< 6 |old(~a12~0)|) .cse0)))) [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1527(lines 1527 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1651(lines 1651 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1585(lines 1585 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1709(lines 1709 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1503(lines 1503 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1693(lines 1693 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1553(lines 1553 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point calculate_output2FINAL(lines 1494 1765) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1669(lines 1669 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1603(lines 1603 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1727(lines 1727 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1628(lines 1628 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1752(lines 1752 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1521(lines 1521 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,140 INFO L448 ceAbstractionStarter]: For program point L1645(lines 1645 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L1579(lines 1579 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L1546(lines 1546 1763) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L894(lines 894 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L828(lines 828 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L696(lines 696 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L1291(lines 1291 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L961(lines 961 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L763(lines 763 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L631(lines 631 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L367(lines 367 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L1358(lines 1358 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L1160(lines 1160 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-09 04:14:32,141 INFO L444 ceAbstractionStarter]: At program point L1491(line 1491) the Hoare annotation is: (let ((.cse8 (= |old(~a15~0)| ~a15~0)) (.cse7 (= ~a16~0 |old(~a16~0)|)) (.cse15 (= ~a18~0 |old(~a18~0)|)) (.cse9 (= |old(~a12~0)| ~a12~0)) (.cse4 (not (= 3 |old(~a15~0)|))) (.cse5 (= |calculate_output_#in~input| 0)) (.cse19 (= ~a15~0 3)) (.cse22 (= 9 |old(~a16~0)|)) (.cse21 (= 4 |old(~a15~0)|))) (let ((.cse11 (or .cse22 .cse21)) (.cse12 (not (= 11 ~a16~0))) (.cse2 (not (= calculate_output_~input 3))) (.cse14 (not .cse19)) (.cse10 (or .cse21 (not (= 8 |old(~a12~0)|)))) (.cse0 (not .cse21)) (.cse1 (not (= 8 |old(~a16~0)|))) (.cse3 (not (= calculate_output_~input 0))) (.cse16 (or .cse4 (not (= 5 |old(~a12~0)|)) (= 0 |old(~a16~0)|) .cse5)) (.cse18 (not .cse22)) (.cse6 (and .cse8 .cse7 .cse15 .cse9)) (.cse13 (not (= 7 |old(~a12~0)|))) (.cse17 (< 0 (+ |old(~a18~0)| 156)))) (and (or .cse0 .cse1 (or .cse2 (< 0 (+ ~a18~0 156))) (not (= 9 |old(~a12~0)|))) (or .cse3 (or .cse4 (= 0 |old(~a12~0)|) .cse5) (not (= 11 |old(~a16~0)|))) (or .cse6 (< |old(~a12~0)| 9) (= 10 |old(~a16~0)|)) (or (and (and .cse7 .cse8) .cse9) .cse10) (or .cse11 (and (or .cse12 .cse2 .cse13 .cse14 (< 0 (+ ~a18~0 79))) .cse8 .cse7 .cse15 .cse9)) (or (or (not (= 5 ~a12~0)) (not (= 8 ~a16~0)) .cse14) .cse11) (or .cse0 (< 6 |old(~a12~0)|) .cse6) (or .cse16 (and .cse7 .cse9)) (or .cse10 (or .cse12 .cse2 .cse14) .cse17) (or .cse10 .cse15) (or .cse0 .cse6 .cse18) (or .cse1 .cse6) (or (and (and .cse19 .cse3) .cse15) .cse16) (or .cse6 .cse13 (forall ((v_prenex_27 Int)) (let ((.cse20 (mod v_prenex_27 299932))) (or (<= 0 v_prenex_27) (= 0 .cse20) (< |old(~a18~0)| (+ .cse20 136))))) .cse18) (or .cse21 .cse6 .cse13 .cse17)))) [2018-12-09 04:14:32,141 INFO L448 ceAbstractionStarter]: For program point L434(lines 434 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L1491-1(line 1491) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L1227(lines 1227 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L567(lines 567 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L501(lines 501 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L303(lines 303 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L1097(lines 1097 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L1031(lines 1031 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L899(lines 899 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L1428(lines 1428 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L834(lines 834 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L636(lines 636 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L1297(lines 1297 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L240(lines 240 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L967(lines 967 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L769(lines 769 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,142 INFO L448 ceAbstractionStarter]: For program point L703(lines 703 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L373(lines 373 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L1364(lines 1364 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L1166(lines 1166 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L440(lines 440 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L309(lines 309 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L1234(lines 1234 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L1036(lines 1036 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L508(lines 508 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L1103(lines 1103 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L905(lines 905 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L641(lines 641 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L443(lines 443 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L1434(lines 1434 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,143 INFO L448 ceAbstractionStarter]: For program point L840(lines 840 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L1303(lines 1303 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L246(lines 246 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L775(lines 775 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L1370(lines 1370 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L1172(lines 1172 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L974(lines 974 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L578(lines 578 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L380(lines 380 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L1042(lines 1042 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L778(lines 778 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L1241(lines 1241 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L1175(lines 1175 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,144 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L1109(lines 1109 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L515(lines 515 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L1440(lines 1440 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L912(lines 912 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L846(lines 846 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L648(lines 648 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L1375(lines 1375 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L1309(lines 1309 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L979(lines 979 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L584(lines 584 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L386(lines 386 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L717(lines 717 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L321(lines 321 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L1114(lines 1114 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,145 INFO L448 ceAbstractionStarter]: For program point L1048(lines 1048 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L784(lines 784 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L1247(lines 1247 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L1181(lines 1181 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L917(lines 917 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L851(lines 851 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L521(lines 521 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L1446(lines 1446 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L1314(lines 1314 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L257(lines 257 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 23 1492) the Hoare annotation is: (let ((.cse5 (= 9 |old(~a16~0)|)) (.cse8 (= ~a18~0 |old(~a18~0)|)) (.cse9 (= |old(~a12~0)| ~a12~0)) (.cse1 (= 4 |old(~a15~0)|))) (let ((.cse3 (not .cse1)) (.cse2 (and (= |old(~a16~0)| ~a16~0) .cse8 (= ~a15~0 |old(~a15~0)|) .cse9)) (.cse0 (and (= |old(~a15~0)| ~a15~0) (= ~a16~0 |old(~a16~0)|) .cse8 .cse9)) (.cse6 (not (= 7 |old(~a12~0)|))) (.cse4 (not .cse5))) (and (or (< |old(~a12~0)| 9) .cse0 (= 10 |old(~a16~0)|)) (or (or .cse1 (not (= 8 |old(~a12~0)|))) .cse2) (or (not (= 8 |old(~a16~0)|)) .cse0) (or .cse3 .cse0 .cse4) (or .cse3 (< 6 |old(~a12~0)|) .cse0) (or (or .cse5 .cse1) .cse0) (or .cse2 (or (not (= 3 |old(~a15~0)|)) (not (= 5 |old(~a12~0)|)) (= |calculate_output_#in~input| 0))) (or .cse1 .cse0 .cse6 (< 0 (+ |old(~a18~0)| 156))) (or .cse0 .cse6 (forall ((v_prenex_27 Int)) (let ((.cse7 (mod v_prenex_27 299932))) (or (<= 0 v_prenex_27) (= 0 .cse7) (< |old(~a18~0)| (+ .cse7 136))))) .cse4)))) [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L1381(lines 1381 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L655(lines 655 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,146 INFO L448 ceAbstractionStarter]: For program point L589(lines 589 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L457(lines 457 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L1250(lines 1250 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L986(lines 986 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L1449(lines 1449 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L723(lines 723 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L327(lines 327 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L1120(lines 1120 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L922(lines 922 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L262(lines 262 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L1187(lines 1187 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L1055(lines 1055 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L857(lines 857 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L527(lines 527 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point L1386(lines 1386 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,147 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L594(lines 594 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L1321(lines 1321 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L661(lines 661 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L463(lines 463 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L1256(lines 1256 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L728(lines 728 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L1125(lines 1125 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L993(lines 993 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L1456(lines 1456 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L796(lines 796 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L664(lines 664 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L1193(lines 1193 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,148 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L1061(lines 1061 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L929(lines 929 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L863(lines 863 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L533(lines 533 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L1392(lines 1392 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L600(lines 600 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L1327(lines 1327 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L204-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L469(lines 469 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L1262(lines 1262 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L205(line 205) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L734(lines 734 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L1461(lines 1461 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L404(lines 404 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L338(lines 338 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L1131(lines 1131 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L999(lines 999 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,149 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L802(lines 802 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L670(lines 670 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L538(lines 538 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L1397(lines 1397 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L274(lines 274 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L1067(lines 1067 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L935(lines 935 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L869(lines 869 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L1200(lines 1200 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L606(lines 606 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L1267(lines 1267 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L1466(lines 1466 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L1334(lines 1334 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L476(lines 476 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L1137(lines 1137 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L1005(lines 1005 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L543(lines 543 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L411(lines 411 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,150 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L279(lines 279 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L213(lines 213 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L808(lines 808 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L1403(lines 1403 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L1205(lines 1205 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L1073(lines 1073 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L875(lines 875 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L942(lines 942 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L612(lines 612 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L1472(lines 1472 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L1274(lines 1274 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L746(lines 746 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L680(lines 680 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L548(lines 548 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,151 INFO L448 ceAbstractionStarter]: For program point L350(lines 350 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L1341(lines 1341 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L1143(lines 1143 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L1011(lines 1011 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L483(lines 483 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L417(lines 417 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L285(lines 285 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L1409(lines 1409 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L1211(lines 1211 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L1079(lines 1079 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L815(lines 815 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L948(lines 948 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L882(lines 882 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L618(lines 618 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L1477(lines 1477 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L24-2(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L1280(lines 1280 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L1214(lines 1214 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,152 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L686(lines 686 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L554(lines 554 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L356(lines 356 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L1347(lines 1347 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L290(lines 290 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L1149(lines 1149 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L489(lines 489 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L1018(lines 1018 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L424(lines 424 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L1415(lines 1415 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L1086(lines 1086 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L954(lines 954 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L888(lines 888 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L822(lines 822 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L624(lines 624 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,153 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L691(lines 691 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L1484(lines 1484 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L427(lines 427 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L1286(lines 1286 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L1220(lines 1220 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L560(lines 560 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L1353(lines 1353 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L1155(lines 1155 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L297(lines 297 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 23 1492) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L1025(lines 1025 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L1422(lines 1422 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point L1092(lines 1092 1490) no Hoare annotation was computed. [2018-12-09 04:14:32,154 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 04:14:32,155 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 (+ ~a18~0 87))) (and (<= .cse0 0) (<= 0 .cse0) (= ~a16~0 11) (= 3 ~a15~0) (= ~a12~0 5))) [2018-12-09 04:14:32,155 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 04:14:32,155 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 04:14:32,155 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 1767 1783) the Hoare annotation is: (or (not (= 3 |old(~a15~0)|)) (not (= 5 |old(~a12~0)|)) (and (= ~a16~0 |old(~a16~0)|) (= 3 ~a15~0) (= ~a18~0 |old(~a18~0)|) (= |old(~a12~0)| ~a12~0)) (not (= 11 |old(~a16~0)|)) (not (= (+ |old(~a18~0)| 87) 0))) [2018-12-09 04:14:32,155 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 1767 1783) no Hoare annotation was computed. [2018-12-09 04:14:32,155 INFO L444 ceAbstractionStarter]: At program point L1781(line 1781) the Hoare annotation is: (let ((.cse1 (not (= ~a16~0 9))) (.cse3 (= 7 ~a12~0)) (.cse0 (not (= ~a15~0 4))) (.cse2 (+ |old(~a18~0)| 87))) (or (= 8 ~a16~0) (and (= 4 ~a15~0) (= 9 ~a16~0)) (and .cse0 .cse1) (not (= 11 |old(~a16~0)|)) (and (not (= ~a16~0 10)) (<= 9 ~a12~0)) (not (= 3 |old(~a15~0)|)) (< .cse2 0) (and (<= ~a12~0 6) .cse1) (not (= 5 |old(~a12~0)|)) (and .cse3 .cse0 (exists ((v_prenex_27 Int)) (let ((.cse4 (mod v_prenex_27 299932))) (and (< v_prenex_27 0) (not (= 0 .cse4)) (<= (+ .cse4 136) ~a18~0))))) (and (= 8 ~a12~0) .cse0) (and (<= (+ ~a18~0 156) 0) .cse3 .cse0) (< 0 .cse2) (and (not (= main_~input~0 0)) (= ~a15~0 3) (= ~a12~0 5)))) [2018-12-09 04:14:32,155 INFO L448 ceAbstractionStarter]: For program point L1781-1(line 1781) no Hoare annotation was computed. [2018-12-09 04:14:32,155 INFO L448 ceAbstractionStarter]: For program point L1778(line 1778) no Hoare annotation was computed. [2018-12-09 04:14:32,155 INFO L444 ceAbstractionStarter]: At program point L1773-2(lines 1773 1782) the Hoare annotation is: (let ((.cse1 (= 4 ~a15~0)) (.cse2 (= 7 ~a12~0)) (.cse0 (not (= ~a15~0 4))) (.cse4 (+ |old(~a18~0)| 87))) (or (= 8 ~a16~0) (and .cse0 (not (= ~a16~0 9))) (not (= 11 |old(~a16~0)|)) (and .cse1 (<= ~a12~0 6)) (not (= 3 |old(~a15~0)|)) (and .cse1 (= 9 ~a16~0)) (not (= 5 |old(~a12~0)|)) (and .cse2 .cse0 (exists ((v_prenex_27 Int)) (let ((.cse3 (mod v_prenex_27 299932))) (and (< v_prenex_27 0) (not (= 0 .cse3)) (<= (+ .cse3 136) ~a18~0))))) (and (= 8 ~a12~0) .cse0) (and (<= (+ ~a18~0 156) 0) .cse2 .cse0) (< 0 .cse4) (and (not (= ~a16~0 10)) (<= 9 ~a12~0)) (< .cse4 0) (and (= ~a15~0 3) (= ~a12~0 5)))) [2018-12-09 04:14:32,155 INFO L448 ceAbstractionStarter]: For program point L1773-3(lines 1767 1783) no Hoare annotation was computed. [2018-12-09 04:14:32,158 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] [2018-12-09 04:14:32,159 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] [2018-12-09 04:14:32,159 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] [2018-12-09 04:14:32,162 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] [2018-12-09 04:14:32,162 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] [2018-12-09 04:14:32,162 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] [2018-12-09 04:14:32,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:14:32 BoogieIcfgContainer [2018-12-09 04:14:32,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 04:14:32,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 04:14:32,164 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 04:14:32,164 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 04:14:32,164 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:08:17" (3/4) ... [2018-12-09 04:14:32,166 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 04:14:32,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 04:14:32,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output2 [2018-12-09 04:14:32,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-09 04:14:32,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 04:14:32,181 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-09 04:14:32,182 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 04:14:32,200 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((8 == a16 || (!(a15 == 4) && !(a16 == 9))) || !(11 == \old(a16))) || (4 == a15 && a12 <= 6)) || !(3 == \old(a15))) || (4 == a15 && 9 == a16)) || !(5 == \old(a12))) || ((7 == a12 && !(a15 == 4)) && (\exists v_prenex_27 : int :: (v_prenex_27 < 0 && !(0 == v_prenex_27 % 299932)) && v_prenex_27 % 299932 + 136 <= a18))) || (8 == a12 && !(a15 == 4))) || ((a18 + 156 <= 0 && 7 == a12) && !(a15 == 4))) || 0 < \old(a18) + 87) || (!(a16 == 10) && 9 <= a12)) || \old(a18) + 87 < 0) || (a15 == 3 && a12 == 5) [2018-12-09 04:14:32,286 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_955d376c-6cff-410f-8bf4-d5766b86a349/bin-2019/utaipan/witness.graphml [2018-12-09 04:14:32,286 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 04:14:32,287 INFO L168 Benchmark]: Toolchain (without parser) took 377043.47 ms. Allocated memory was 1.0 GB in the beginning and 5.5 GB in the end (delta: 4.4 GB). Free memory was 943.2 MB in the beginning and 3.9 GB in the end (delta: -3.0 GB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-12-09 04:14:32,288 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 04:14:32,288 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 11.5 GB. [2018-12-09 04:14:32,288 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.36 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: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. [2018-12-09 04:14:32,288 INFO L168 Benchmark]: Boogie Preprocessor took 60.62 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-09 04:14:32,288 INFO L168 Benchmark]: RCFGBuilder took 1361.64 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: -5.2 MB). Peak memory consumption was 236.2 MB. Max. memory is 11.5 GB. [2018-12-09 04:14:32,289 INFO L168 Benchmark]: TraceAbstraction took 374926.07 ms. Allocated memory was 1.1 GB in the beginning and 5.5 GB in the end (delta: 4.3 GB). Free memory was 1.1 GB in the beginning and 3.9 GB in the end (delta: -2.8 GB). Peak memory consumption was 4.3 GB. Max. memory is 11.5 GB. [2018-12-09 04:14:32,289 INFO L168 Benchmark]: Witness Printer took 122.67 ms. Allocated memory is still 5.5 GB. Free memory was 3.9 GB in the beginning and 3.9 GB in the end (delta: 4.2 kB). Peak memory consumption was 4.2 kB. Max. memory is 11.5 GB. [2018-12-09 04:14:32,291 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 544.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.36 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: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.62 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1361.64 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: -5.2 MB). Peak memory consumption was 236.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 374926.07 ms. Allocated memory was 1.1 GB in the beginning and 5.5 GB in the end (delta: 4.3 GB). Free memory was 1.1 GB in the beginning and 3.9 GB in the end (delta: -2.8 GB). Peak memory consumption was 4.3 GB. Max. memory is 11.5 GB. * Witness Printer took 122.67 ms. Allocated memory is still 5.5 GB. Free memory was 3.9 GB in the beginning and 3.9 GB in the end (delta: 4.2 kB). Peak memory consumption was 4.2 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] * 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: 1773]: Loop Invariant [2018-12-09 04:14:32,293 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] [2018-12-09 04:14:32,293 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] [2018-12-09 04:14:32,293 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] [2018-12-09 04:14:32,294 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] [2018-12-09 04:14:32,294 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] [2018-12-09 04:14:32,294 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_27,QUANTIFIED] Derived loop invariant: ((((((((((((8 == a16 || (!(a15 == 4) && !(a16 == 9))) || !(11 == \old(a16))) || (4 == a15 && a12 <= 6)) || !(3 == \old(a15))) || (4 == a15 && 9 == a16)) || !(5 == \old(a12))) || ((7 == a12 && !(a15 == 4)) && (\exists v_prenex_27 : int :: (v_prenex_27 < 0 && !(0 == v_prenex_27 % 299932)) && v_prenex_27 % 299932 + 136 <= a18))) || (8 == a12 && !(a15 == 4))) || ((a18 + 156 <= 0 && 7 == a12) && !(a15 == 4))) || 0 < \old(a18) + 87) || (!(a16 == 10) && 9 <= a12)) || \old(a18) + 87 < 0) || (a15 == 3 && a12 == 5) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 409 locations, 1 error locations. SAFE Result, 374.8s OverallTime, 20 OverallIterations, 13 TraceHistogramMax, 298.5s AutomataDifference, 0.0s DeadEndRemovalTime, 10.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 3135 SDtfs, 55871 SDslu, 4230 SDs, 0 SdLazy, 98709 SolverSat, 10508 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 261.9s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 39754 GetRequests, 39092 SyntacticMatches, 44 SemanticMatches, 618 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15096 ImplicationChecksByTransitivity, 13.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19569occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.3s AbstIntTime, 17 AbstIntIterations, 4 AbstIntStrong, 0.9977668756494201 AbsIntWeakeningRatio, 0.07186973610331275 AbsIntAvgWeakeningVarsNumRemoved, 16.04267265581134 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 20 MinimizatonAttempts, 5057 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 1239 PreInvPairs, 1446 NumberOfFragments, 1131 HoareAnnotationTreeSize, 1239 FomulaSimplifications, 2153641 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1173975 FormulaSimplificationTreeSizeReductionInter, 8.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 24.8s InterpolantComputationTime, 39232 NumberOfCodeBlocks, 39232 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 57723 ConstructedInterpolants, 54 QuantifiedInterpolants, 329335011 SizeOfPredicates, 15 NumberOfNonLiveVariables, 23935 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 46 InterpolantComputations, 11 PerfectInterpolantSequences, 153474/180538 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...