./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label47_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label47_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/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 263f5bcc0dd18a6a1141604b5838ae66dccd2a0e ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 15:48:57,202 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 15:48:57,203 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 15:48:57,209 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 15:48:57,209 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 15:48:57,210 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 15:48:57,211 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 15:48:57,212 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 15:48:57,213 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 15:48:57,213 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 15:48:57,214 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 15:48:57,214 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 15:48:57,214 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 15:48:57,215 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 15:48:57,215 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 15:48:57,216 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 15:48:57,216 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 15:48:57,217 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 15:48:57,218 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 15:48:57,219 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 15:48:57,219 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 15:48:57,220 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 15:48:57,221 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 15:48:57,221 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 15:48:57,221 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 15:48:57,222 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 15:48:57,222 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 15:48:57,223 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 15:48:57,223 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 15:48:57,224 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 15:48:57,224 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 15:48:57,224 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 15:48:57,224 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 15:48:57,224 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 15:48:57,225 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 15:48:57,225 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 15:48:57,226 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 15:48:57,233 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 15:48:57,233 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 15:48:57,233 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 15:48:57,234 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 15:48:57,234 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 15:48:57,234 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 15:48:57,234 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 15:48:57,234 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 15:48:57,234 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 15:48:57,234 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 15:48:57,234 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 15:48:57,234 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 15:48:57,234 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 15:48:57,235 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 15:48:57,235 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 15:48:57,235 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 15:48:57,235 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 15:48:57,235 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 15:48:57,235 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 15:48:57,235 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 15:48:57,235 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 15:48:57,235 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 15:48:57,236 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 15:48:57,236 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 15:48:57,236 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 15:48:57,236 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 15:48:57,236 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 15:48:57,236 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 15:48:57,236 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 15:48:57,236 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 15:48:57,236 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 15:48:57,236 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 15:48:57,237 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 15:48:57,237 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 15:48:57,237 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 15:48:57,237 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 15:48:57,237 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_f2557920-465e-4be9-b428-6d7068ee7566/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 -> 263f5bcc0dd18a6a1141604b5838ae66dccd2a0e [2018-12-08 15:48:57,254 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 15:48:57,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 15:48:57,263 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 15:48:57,264 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 15:48:57,264 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 15:48:57,264 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label47_true-unreach-call_false-termination.c [2018-12-08 15:48:57,300 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/bin-2019/utaipan/data/b3df82ac9/effac9daa9ce4fb39609a59fde5b2fd7/FLAGc196a450c [2018-12-08 15:48:57,709 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 15:48:57,709 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/sv-benchmarks/c/eca-rers2012/Problem14_label47_true-unreach-call_false-termination.c [2018-12-08 15:48:57,715 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/bin-2019/utaipan/data/b3df82ac9/effac9daa9ce4fb39609a59fde5b2fd7/FLAGc196a450c [2018-12-08 15:48:58,045 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/bin-2019/utaipan/data/b3df82ac9/effac9daa9ce4fb39609a59fde5b2fd7 [2018-12-08 15:48:58,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 15:48:58,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 15:48:58,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 15:48:58,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 15:48:58,058 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 15:48:58,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:48:58" (1/1) ... [2018-12-08 15:48:58,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@870cb06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58, skipping insertion in model container [2018-12-08 15:48:58,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:48:58" (1/1) ... [2018-12-08 15:48:58,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 15:48:58,096 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 15:48:58,292 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:48:58,295 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 15:48:58,407 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:48:58,419 INFO L195 MainTranslator]: Completed translation [2018-12-08 15:48:58,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58 WrapperNode [2018-12-08 15:48:58,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 15:48:58,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 15:48:58,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 15:48:58,421 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 15:48:58,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2018-12-08 15:48:58,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2018-12-08 15:48:58,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 15:48:58,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 15:48:58,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 15:48:58,447 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 15:48:58,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2018-12-08 15:48:58,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2018-12-08 15:48:58,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2018-12-08 15:48:58,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2018-12-08 15:48:58,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2018-12-08 15:48:58,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2018-12-08 15:48:58,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2018-12-08 15:48:58,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 15:48:58,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 15:48:58,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 15:48:58,499 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 15:48:58,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/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 [2018-12-08 15:48:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 15:48:58,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 15:48:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-08 15:48:58,543 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-08 15:48:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 15:48:58,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 15:48:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 15:48:58,543 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 15:48:59,225 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 15:48:59,225 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 15:48:59,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:48:59 BoogieIcfgContainer [2018-12-08 15:48:59,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 15:48:59,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 15:48:59,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 15:48:59,230 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 15:48:59,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:48:58" (1/3) ... [2018-12-08 15:48:59,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e689d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:48:59, skipping insertion in model container [2018-12-08 15:48:59,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (2/3) ... [2018-12-08 15:48:59,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e689d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:48:59, skipping insertion in model container [2018-12-08 15:48:59,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:48:59" (3/3) ... [2018-12-08 15:48:59,232 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label47_true-unreach-call_false-termination.c [2018-12-08 15:48:59,239 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 15:48:59,244 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 15:48:59,254 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 15:48:59,275 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 15:48:59,275 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 15:48:59,275 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 15:48:59,275 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 15:48:59,276 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 15:48:59,276 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 15:48:59,276 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 15:48:59,276 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 15:48:59,295 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-12-08 15:48:59,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-08 15:48:59,300 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:48:59,301 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] [2018-12-08 15:48:59,302 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:48:59,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:48:59,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1824869262, now seen corresponding path program 1 times [2018-12-08 15:48:59,307 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:48:59,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:48:59,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:48:59,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:48:59,336 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:48:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:48:59,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:48:59,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:48:59,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 15:48:59,491 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:48:59,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:48:59,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:48:59,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:48:59,505 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2018-12-08 15:49:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:49:00,106 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2018-12-08 15:49:00,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:49:00,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-12-08 15:49:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:49:00,118 INFO L225 Difference]: With dead ends: 688 [2018-12-08 15:49:00,119 INFO L226 Difference]: Without dead ends: 372 [2018-12-08 15:49:00,123 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 [2018-12-08 15:49:00,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-12-08 15:49:00,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2018-12-08 15:49:00,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-12-08 15:49:00,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 602 transitions. [2018-12-08 15:49:00,177 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 602 transitions. Word has length 39 [2018-12-08 15:49:00,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:49:00,178 INFO L480 AbstractCegarLoop]: Abstraction has 372 states and 602 transitions. [2018-12-08 15:49:00,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:49:00,178 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 602 transitions. [2018-12-08 15:49:00,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-12-08 15:49:00,181 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:49:00,181 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:49:00,181 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:49:00,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:49:00,181 INFO L82 PathProgramCache]: Analyzing trace with hash 686981166, now seen corresponding path program 1 times [2018-12-08 15:49:00,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:49:00,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:49:00,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:49:00,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:49:00,182 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:49:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:00,301 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:49:00,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:49:00,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 15:49:00,301 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:49:00,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 15:49:00,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 15:49:00,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 15:49:00,303 INFO L87 Difference]: Start difference. First operand 372 states and 602 transitions. Second operand 6 states. [2018-12-08 15:49:00,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:49:00,915 INFO L93 Difference]: Finished difference Result 936 states and 1526 transitions. [2018-12-08 15:49:00,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 15:49:00,915 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-12-08 15:49:00,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:49:00,918 INFO L225 Difference]: With dead ends: 936 [2018-12-08 15:49:00,918 INFO L226 Difference]: Without dead ends: 570 [2018-12-08 15:49:00,919 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 [2018-12-08 15:49:00,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2018-12-08 15:49:00,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 562. [2018-12-08 15:49:00,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2018-12-08 15:49:00,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 814 transitions. [2018-12-08 15:49:00,936 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 814 transitions. Word has length 125 [2018-12-08 15:49:00,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:49:00,937 INFO L480 AbstractCegarLoop]: Abstraction has 562 states and 814 transitions. [2018-12-08 15:49:00,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 15:49:00,937 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 814 transitions. [2018-12-08 15:49:00,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-12-08 15:49:00,939 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:49:00,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:49:00,939 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:49:00,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:49:00,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1152023485, now seen corresponding path program 1 times [2018-12-08 15:49:00,940 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:49:00,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:49:00,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:49:00,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:49:00,941 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:49:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:49:01,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:49:01,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 15:49:01,002 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:49:01,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 15:49:01,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 15:49:01,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 15:49:01,003 INFO L87 Difference]: Start difference. First operand 562 states and 814 transitions. Second operand 4 states. [2018-12-08 15:49:01,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:49:01,733 INFO L93 Difference]: Finished difference Result 2220 states and 3292 transitions. [2018-12-08 15:49:01,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 15:49:01,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2018-12-08 15:49:01,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:49:01,738 INFO L225 Difference]: With dead ends: 2220 [2018-12-08 15:49:01,738 INFO L226 Difference]: Without dead ends: 1664 [2018-12-08 15:49:01,739 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 15:49:01,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2018-12-08 15:49:01,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1664. [2018-12-08 15:49:01,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1664 states. [2018-12-08 15:49:01,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2287 transitions. [2018-12-08 15:49:01,769 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2287 transitions. Word has length 134 [2018-12-08 15:49:01,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:49:01,770 INFO L480 AbstractCegarLoop]: Abstraction has 1664 states and 2287 transitions. [2018-12-08 15:49:01,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 15:49:01,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2287 transitions. [2018-12-08 15:49:01,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-12-08 15:49:01,774 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:49:01,774 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-08 15:49:01,774 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:49:01,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:49:01,774 INFO L82 PathProgramCache]: Analyzing trace with hash 2008848013, now seen corresponding path program 1 times [2018-12-08 15:49:01,774 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:49:01,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:49:01,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:49:01,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:49:01,775 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:49:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:01,972 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 64 proven. 107 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 15:49:01,973 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:49:01,973 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:49:01,973 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-12-08 15:49:01,974 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-08 15:49:02,000 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:49:02,000 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:49:03,717 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 15:49:03,718 INFO L272 AbstractInterpreter]: Visited 117 different actions 117 times. Never merged. Never widened. Performed 1046 root evaluator evaluations with a maximum evaluation depth of 22. Performed 1046 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Never found a fixpoint. Largest state had 24 variables. [2018-12-08 15:49:03,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:49:03,723 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 15:49:05,334 INFO L227 lantSequenceWeakener]: Weakened 253 states. On average, predicates are now at 77.66% of their original sizes. [2018-12-08 15:49:05,334 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 15:49:05,358 INFO L418 sIntCurrentIteration]: We unified 261 AI predicates to 261 [2018-12-08 15:49:05,358 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 15:49:05,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 15:49:05,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-12-08 15:49:05,359 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:49:05,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 15:49:05,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 15:49:05,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 15:49:05,361 INFO L87 Difference]: Start difference. First operand 1664 states and 2287 transitions. Second operand 6 states. [2018-12-08 15:49:16,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:49:16,297 INFO L93 Difference]: Finished difference Result 3505 states and 4813 transitions. [2018-12-08 15:49:16,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 15:49:16,297 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 262 [2018-12-08 15:49:16,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:49:16,303 INFO L225 Difference]: With dead ends: 3505 [2018-12-08 15:49:16,304 INFO L226 Difference]: Without dead ends: 1847 [2018-12-08 15:49:16,306 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 262 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-08 15:49:16,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2018-12-08 15:49:16,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1846. [2018-12-08 15:49:16,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1846 states. [2018-12-08 15:49:16,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2477 transitions. [2018-12-08 15:49:16,335 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2477 transitions. Word has length 262 [2018-12-08 15:49:16,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:49:16,335 INFO L480 AbstractCegarLoop]: Abstraction has 1846 states and 2477 transitions. [2018-12-08 15:49:16,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 15:49:16,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2477 transitions. [2018-12-08 15:49:16,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2018-12-08 15:49:16,339 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:49:16,339 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:49:16,339 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:49:16,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:49:16,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1769612725, now seen corresponding path program 1 times [2018-12-08 15:49:16,340 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:49:16,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:49:16,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:49:16,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:49:16,340 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:49:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:16,745 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 182 proven. 189 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 15:49:16,746 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:49:16,746 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:49:16,746 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 347 with the following transitions: [2018-12-08 15:49:16,746 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-08 15:49:16,748 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:49:16,749 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:49:19,650 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 15:49:19,650 INFO L272 AbstractInterpreter]: Visited 121 different actions 235 times. Merged at 3 different actions 3 times. Never widened. Performed 2149 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2149 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-08 15:49:19,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:49:19,653 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 15:49:21,219 INFO L227 lantSequenceWeakener]: Weakened 343 states. On average, predicates are now at 77.61% of their original sizes. [2018-12-08 15:49:21,219 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 15:49:21,281 INFO L418 sIntCurrentIteration]: We unified 345 AI predicates to 345 [2018-12-08 15:49:21,281 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 15:49:21,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 15:49:21,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-12-08 15:49:21,281 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:49:21,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 15:49:21,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 15:49:21,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 15:49:21,282 INFO L87 Difference]: Start difference. First operand 1846 states and 2477 transitions. Second operand 10 states. [2018-12-08 15:50:01,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:50:01,725 INFO L93 Difference]: Finished difference Result 3902 states and 5261 transitions. [2018-12-08 15:50:01,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-08 15:50:01,725 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 346 [2018-12-08 15:50:01,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:50:01,728 INFO L225 Difference]: With dead ends: 3902 [2018-12-08 15:50:01,729 INFO L226 Difference]: Without dead ends: 2029 [2018-12-08 15:50:01,730 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 354 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-08 15:50:01,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2018-12-08 15:50:01,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 2028. [2018-12-08 15:50:01,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2028 states. [2018-12-08 15:50:01,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2663 transitions. [2018-12-08 15:50:01,756 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2663 transitions. Word has length 346 [2018-12-08 15:50:01,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:50:01,756 INFO L480 AbstractCegarLoop]: Abstraction has 2028 states and 2663 transitions. [2018-12-08 15:50:01,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 15:50:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2663 transitions. [2018-12-08 15:50:01,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2018-12-08 15:50:01,761 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:50:01,761 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:50:01,761 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:50:01,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:50:01,762 INFO L82 PathProgramCache]: Analyzing trace with hash 2021235418, now seen corresponding path program 1 times [2018-12-08 15:50:01,762 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:50:01,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:50:01,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:50:01,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:50:01,762 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:50:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:50:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 321 proven. 249 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-12-08 15:50:02,256 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:50:02,256 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:50:02,256 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 446 with the following transitions: [2018-12-08 15:50:02,257 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [662], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-08 15:50:02,259 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:50:02,260 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:50:04,946 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 15:50:04,947 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 times. Merged at 4 different actions 4 times. Never widened. Performed 2160 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2160 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-08 15:50:04,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:50:04,949 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 15:50:06,454 INFO L227 lantSequenceWeakener]: Weakened 442 states. On average, predicates are now at 77.56% of their original sizes. [2018-12-08 15:50:06,454 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 15:50:06,484 INFO L418 sIntCurrentIteration]: We unified 444 AI predicates to 444 [2018-12-08 15:50:06,484 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 15:50:06,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 15:50:06,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-12-08 15:50:06,485 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:50:06,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 15:50:06,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 15:50:06,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 15:50:06,486 INFO L87 Difference]: Start difference. First operand 2028 states and 2663 transitions. Second operand 10 states. [2018-12-08 15:50:24,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:50:24,687 INFO L93 Difference]: Finished difference Result 3690 states and 4949 transitions. [2018-12-08 15:50:24,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 15:50:24,687 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 445 [2018-12-08 15:50:24,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:50:24,690 INFO L225 Difference]: With dead ends: 3690 [2018-12-08 15:50:24,690 INFO L226 Difference]: Without dead ends: 2032 [2018-12-08 15:50:24,692 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 452 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-08 15:50:24,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2032 states. [2018-12-08 15:50:24,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2032 to 2030. [2018-12-08 15:50:24,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2030 states. [2018-12-08 15:50:24,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2030 states to 2030 states and 2658 transitions. [2018-12-08 15:50:24,713 INFO L78 Accepts]: Start accepts. Automaton has 2030 states and 2658 transitions. Word has length 445 [2018-12-08 15:50:24,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:50:24,714 INFO L480 AbstractCegarLoop]: Abstraction has 2030 states and 2658 transitions. [2018-12-08 15:50:24,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 15:50:24,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2030 states and 2658 transitions. [2018-12-08 15:50:24,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2018-12-08 15:50:24,719 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:50:24,719 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:50:24,719 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:50:24,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:50:24,720 INFO L82 PathProgramCache]: Analyzing trace with hash -358273966, now seen corresponding path program 1 times [2018-12-08 15:50:24,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:50:24,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:50:24,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:50:24,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:50:24,720 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:50:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:50:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 356 proven. 111 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2018-12-08 15:50:24,993 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:50:24,993 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:50:24,993 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 482 with the following transitions: [2018-12-08 15:50:24,993 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-08 15:50:24,996 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:50:24,996 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:50:31,308 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 15:50:31,308 INFO L272 AbstractInterpreter]: Visited 122 different actions 359 times. Merged at 6 different actions 13 times. Never widened. Performed 3415 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3415 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-08 15:50:31,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:50:31,310 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 15:50:32,182 INFO L227 lantSequenceWeakener]: Weakened 478 states. On average, predicates are now at 80.18% of their original sizes. [2018-12-08 15:50:32,182 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 15:50:32,215 INFO L418 sIntCurrentIteration]: We unified 480 AI predicates to 480 [2018-12-08 15:50:32,215 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 15:50:32,215 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 15:50:32,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-12-08 15:50:32,216 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:50:32,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 15:50:32,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 15:50:32,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-08 15:50:32,216 INFO L87 Difference]: Start difference. First operand 2030 states and 2658 transitions. Second operand 9 states. [2018-12-08 15:50:41,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:50:41,779 INFO L93 Difference]: Finished difference Result 4254 states and 5715 transitions. [2018-12-08 15:50:41,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-08 15:50:41,779 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 481 [2018-12-08 15:50:41,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:50:41,782 INFO L225 Difference]: With dead ends: 4254 [2018-12-08 15:50:41,783 INFO L226 Difference]: Without dead ends: 2596 [2018-12-08 15:50:41,784 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 487 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-12-08 15:50:41,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2596 states. [2018-12-08 15:50:41,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2596 to 2584. [2018-12-08 15:50:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2584 states. [2018-12-08 15:50:41,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 3378 transitions. [2018-12-08 15:50:41,809 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 3378 transitions. Word has length 481 [2018-12-08 15:50:41,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:50:41,809 INFO L480 AbstractCegarLoop]: Abstraction has 2584 states and 3378 transitions. [2018-12-08 15:50:41,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 15:50:41,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 3378 transitions. [2018-12-08 15:50:41,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2018-12-08 15:50:41,813 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:50:41,813 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:50:41,813 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:50:41,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:50:41,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1776027035, now seen corresponding path program 1 times [2018-12-08 15:50:41,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:50:41,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:50:41,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:50:41,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:50:41,814 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:50:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:50:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 357 proven. 321 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-12-08 15:50:42,465 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:50:42,465 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:50:42,465 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 549 with the following transitions: [2018-12-08 15:50:42,466 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-08 15:50:42,468 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:50:42,468 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:50:46,375 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 15:50:46,375 INFO L272 AbstractInterpreter]: Visited 190 different actions 757 times. Merged at 8 different actions 30 times. Widened at 1 different actions 1 times. Performed 8299 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8299 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-08 15:50:46,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:50:46,378 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 15:50:46,378 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:50:46,378 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/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 [2018-12-08 15:50:46,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:50:46,385 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 15:50:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:50:46,468 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 15:50:46,694 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 645 proven. 2 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-12-08 15:50:46,694 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 15:50:47,031 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 356 proven. 111 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2018-12-08 15:50:47,047 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 15:50:47,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 20 [2018-12-08 15:50:47,047 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 15:50:47,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-08 15:50:47,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-08 15:50:47,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2018-12-08 15:50:47,048 INFO L87 Difference]: Start difference. First operand 2584 states and 3378 transitions. Second operand 17 states. [2018-12-08 15:50:50,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:50:50,453 INFO L93 Difference]: Finished difference Result 5652 states and 7838 transitions. [2018-12-08 15:50:50,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-08 15:50:50,453 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 548 [2018-12-08 15:50:50,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:50:50,460 INFO L225 Difference]: With dead ends: 5652 [2018-12-08 15:50:50,460 INFO L226 Difference]: Without dead ends: 3440 [2018-12-08 15:50:50,463 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1169 GetRequests, 1117 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=595, Invalid=2267, Unknown=0, NotChecked=0, Total=2862 [2018-12-08 15:50:50,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3440 states. [2018-12-08 15:50:50,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3440 to 2828. [2018-12-08 15:50:50,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2828 states. [2018-12-08 15:50:50,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2828 states to 2828 states and 3691 transitions. [2018-12-08 15:50:50,498 INFO L78 Accepts]: Start accepts. Automaton has 2828 states and 3691 transitions. Word has length 548 [2018-12-08 15:50:50,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:50:50,499 INFO L480 AbstractCegarLoop]: Abstraction has 2828 states and 3691 transitions. [2018-12-08 15:50:50,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-08 15:50:50,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2828 states and 3691 transitions. [2018-12-08 15:50:50,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2018-12-08 15:50:50,502 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:50:50,502 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:50:50,502 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:50:50,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:50:50,503 INFO L82 PathProgramCache]: Analyzing trace with hash -722783022, now seen corresponding path program 1 times [2018-12-08 15:50:50,503 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:50:50,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:50:50,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:50:50,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:50:50,503 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:50:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:50:51,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 471 proven. 457 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-12-08 15:50:51,071 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:50:51,071 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:50:51,072 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 554 with the following transitions: [2018-12-08 15:50:51,072 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-08 15:50:51,073 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:50:51,073 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:50:57,985 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 15:50:57,985 INFO L272 AbstractInterpreter]: Visited 124 different actions 489 times. Merged at 8 different actions 26 times. Never widened. Performed 4784 root evaluator evaluations with a maximum evaluation depth of 22. Performed 4784 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-08 15:50:57,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:50:57,988 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 15:50:57,988 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:50:57,988 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/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 [2018-12-08 15:50:57,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:50:57,994 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 15:50:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:50:58,060 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 15:50:58,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 824 proven. 2 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2018-12-08 15:50:58,291 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 15:50:58,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 467 proven. 111 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2018-12-08 15:50:58,632 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 15:50:58,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-12-08 15:50:58,633 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 15:50:58,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-08 15:50:58,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-08 15:50:58,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-12-08 15:50:58,634 INFO L87 Difference]: Start difference. First operand 2828 states and 3691 transitions. Second operand 17 states. [2018-12-08 15:51:01,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:51:01,342 INFO L93 Difference]: Finished difference Result 5766 states and 7895 transitions. [2018-12-08 15:51:01,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-12-08 15:51:01,343 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 553 [2018-12-08 15:51:01,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:51:01,349 INFO L225 Difference]: With dead ends: 5766 [2018-12-08 15:51:01,349 INFO L226 Difference]: Without dead ends: 3171 [2018-12-08 15:51:01,353 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1154 GetRequests, 1112 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=430, Invalid=1376, Unknown=0, NotChecked=0, Total=1806 [2018-12-08 15:51:01,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2018-12-08 15:51:01,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 3016. [2018-12-08 15:51:01,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3016 states. [2018-12-08 15:51:01,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3016 states to 3016 states and 3389 transitions. [2018-12-08 15:51:01,389 INFO L78 Accepts]: Start accepts. Automaton has 3016 states and 3389 transitions. Word has length 553 [2018-12-08 15:51:01,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:51:01,389 INFO L480 AbstractCegarLoop]: Abstraction has 3016 states and 3389 transitions. [2018-12-08 15:51:01,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-08 15:51:01,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3016 states and 3389 transitions. [2018-12-08 15:51:01,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2018-12-08 15:51:01,393 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:51:01,393 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:51:01,393 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:51:01,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:01,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1737313647, now seen corresponding path program 2 times [2018-12-08 15:51:01,393 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:51:01,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:01,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:01,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:01,394 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:51:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:51:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 505 proven. 111 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2018-12-08 15:51:01,666 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:51:01,666 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:51:01,666 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 15:51:01,666 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 15:51:01,666 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:51:01,666 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/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 [2018-12-08 15:51:01,672 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 15:51:01,672 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 15:51:01,707 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-08 15:51:01,707 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 15:51:01,713 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 15:51:03,071 WARN L180 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 42 DAG size of output: 17 [2018-12-08 15:51:03,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2018-12-08 15:51:03,264 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 15:51:03,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2018-12-08 15:51:03,420 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-08 15:51:03,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-12-08 15:51:03,420 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:51:03,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:51:03,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:51:03,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-12-08 15:51:03,421 INFO L87 Difference]: Start difference. First operand 3016 states and 3389 transitions. Second operand 3 states. [2018-12-08 15:51:03,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:51:03,847 INFO L93 Difference]: Finished difference Result 5842 states and 6616 transitions. [2018-12-08 15:51:03,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:51:03,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 658 [2018-12-08 15:51:03,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:51:03,852 INFO L225 Difference]: With dead ends: 5842 [2018-12-08 15:51:03,852 INFO L226 Difference]: Without dead ends: 3198 [2018-12-08 15:51:03,854 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1321 GetRequests, 1315 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-12-08 15:51:03,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3198 states. [2018-12-08 15:51:03,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3198 to 3198. [2018-12-08 15:51:03,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3198 states. [2018-12-08 15:51:03,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3198 states to 3198 states and 3589 transitions. [2018-12-08 15:51:03,883 INFO L78 Accepts]: Start accepts. Automaton has 3198 states and 3589 transitions. Word has length 658 [2018-12-08 15:51:03,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:51:03,883 INFO L480 AbstractCegarLoop]: Abstraction has 3198 states and 3589 transitions. [2018-12-08 15:51:03,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:51:03,883 INFO L276 IsEmpty]: Start isEmpty. Operand 3198 states and 3589 transitions. [2018-12-08 15:51:03,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2018-12-08 15:51:03,888 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:51:03,888 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:51:03,888 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:51:03,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:03,888 INFO L82 PathProgramCache]: Analyzing trace with hash -845289711, now seen corresponding path program 1 times [2018-12-08 15:51:03,888 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:51:03,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:03,889 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 15:51:03,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:03,889 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:51:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:51:04,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 505 proven. 175 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2018-12-08 15:51:04,168 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:51:04,168 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:51:04,168 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 723 with the following transitions: [2018-12-08 15:51:04,168 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [918], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-08 15:51:04,170 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:51:04,170 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:51:08,063 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 15:51:08,063 INFO L272 AbstractInterpreter]: Visited 190 different actions 757 times. Merged at 8 different actions 30 times. Widened at 1 different actions 1 times. Performed 8365 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8365 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-08 15:51:08,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:08,064 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 15:51:08,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:51:08,065 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/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 [2018-12-08 15:51:08,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:08,071 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 15:51:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:51:08,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 15:51:08,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 964 proven. 2 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2018-12-08 15:51:08,310 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 15:51:08,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 505 proven. 175 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2018-12-08 15:51:08,562 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 15:51:08,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-12-08 15:51:08,563 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 15:51:08,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 15:51:08,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 15:51:08,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-08 15:51:08,564 INFO L87 Difference]: Start difference. First operand 3198 states and 3589 transitions. Second operand 7 states. [2018-12-08 15:51:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:51:09,377 INFO L93 Difference]: Finished difference Result 7718 states and 9598 transitions. [2018-12-08 15:51:09,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-08 15:51:09,377 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 722 [2018-12-08 15:51:09,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:51:09,389 INFO L225 Difference]: With dead ends: 7718 [2018-12-08 15:51:09,389 INFO L226 Difference]: Without dead ends: 4892 [2018-12-08 15:51:09,393 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1461 GetRequests, 1447 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-12-08 15:51:09,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4892 states. [2018-12-08 15:51:09,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4892 to 4694. [2018-12-08 15:51:09,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4694 states. [2018-12-08 15:51:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4694 states to 4694 states and 5295 transitions. [2018-12-08 15:51:09,467 INFO L78 Accepts]: Start accepts. Automaton has 4694 states and 5295 transitions. Word has length 722 [2018-12-08 15:51:09,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:51:09,467 INFO L480 AbstractCegarLoop]: Abstraction has 4694 states and 5295 transitions. [2018-12-08 15:51:09,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 15:51:09,467 INFO L276 IsEmpty]: Start isEmpty. Operand 4694 states and 5295 transitions. [2018-12-08 15:51:09,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2018-12-08 15:51:09,472 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:51:09,472 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-08 15:51:09,472 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:51:09,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:09,472 INFO L82 PathProgramCache]: Analyzing trace with hash -269674458, now seen corresponding path program 1 times [2018-12-08 15:51:09,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:51:09,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:09,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:09,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:09,473 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:51:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:51:09,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 512 proven. 175 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2018-12-08 15:51:09,799 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:51:09,799 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:51:09,799 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 730 with the following transitions: [2018-12-08 15:51:09,800 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [918], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-08 15:51:09,801 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:51:09,801 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:51:13,714 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 15:51:13,714 INFO L272 AbstractInterpreter]: Visited 191 different actions 762 times. Merged at 9 different actions 31 times. Never widened. Performed 8433 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8433 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-08 15:51:13,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:13,716 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 15:51:13,716 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:51:13,716 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/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 [2018-12-08 15:51:13,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:13,722 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 15:51:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:51:13,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 15:51:13,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 978 proven. 2 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2018-12-08 15:51:13,964 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 15:51:14,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 512 proven. 175 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2018-12-08 15:51:14,223 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 15:51:14,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-12-08 15:51:14,223 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 15:51:14,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 15:51:14,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 15:51:14,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-08 15:51:14,224 INFO L87 Difference]: Start difference. First operand 4694 states and 5295 transitions. Second operand 7 states. [2018-12-08 15:51:15,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:51:15,118 INFO L93 Difference]: Finished difference Result 11082 states and 13580 transitions. [2018-12-08 15:51:15,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-08 15:51:15,118 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 729 [2018-12-08 15:51:15,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:51:15,135 INFO L225 Difference]: With dead ends: 11082 [2018-12-08 15:51:15,136 INFO L226 Difference]: Without dead ends: 6760 [2018-12-08 15:51:15,143 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1475 GetRequests, 1461 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-12-08 15:51:15,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6760 states. [2018-12-08 15:51:15,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6760 to 6558. [2018-12-08 15:51:15,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6558 states. [2018-12-08 15:51:15,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6558 states to 6558 states and 7463 transitions. [2018-12-08 15:51:15,227 INFO L78 Accepts]: Start accepts. Automaton has 6558 states and 7463 transitions. Word has length 729 [2018-12-08 15:51:15,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:51:15,228 INFO L480 AbstractCegarLoop]: Abstraction has 6558 states and 7463 transitions. [2018-12-08 15:51:15,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 15:51:15,228 INFO L276 IsEmpty]: Start isEmpty. Operand 6558 states and 7463 transitions. [2018-12-08 15:51:15,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2018-12-08 15:51:15,234 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:51:15,234 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:51:15,234 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:51:15,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:15,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1817067878, now seen corresponding path program 1 times [2018-12-08 15:51:15,234 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:51:15,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:15,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:15,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:15,235 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:51:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:51:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 553 proven. 897 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2018-12-08 15:51:16,334 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:51:16,334 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:51:16,334 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 856 with the following transitions: [2018-12-08 15:51:16,334 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [918], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-08 15:51:16,336 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:51:16,336 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:51:20,228 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 15:51:20,228 INFO L272 AbstractInterpreter]: Visited 191 different actions 769 times. Merged at 9 different actions 38 times. Widened at 1 different actions 2 times. Performed 8511 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8511 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-08 15:51:20,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:20,229 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 15:51:20,229 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:51:20,229 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/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 [2018-12-08 15:51:20,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:20,236 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 15:51:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:51:20,338 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 15:51:20,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 1741 trivial. 0 not checked. [2018-12-08 15:51:20,521 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 15:51:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 1741 trivial. 0 not checked. [2018-12-08 15:51:20,705 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-08 15:51:20,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [14] total 15 [2018-12-08 15:51:20,705 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:51:20,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:51:20,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:51:20,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-12-08 15:51:20,706 INFO L87 Difference]: Start difference. First operand 6558 states and 7463 transitions. Second operand 3 states. [2018-12-08 15:51:21,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:51:21,031 INFO L93 Difference]: Finished difference Result 13288 states and 15207 transitions. [2018-12-08 15:51:21,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:51:21,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 855 [2018-12-08 15:51:21,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:51:21,032 INFO L225 Difference]: With dead ends: 13288 [2018-12-08 15:51:21,032 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 15:51:21,043 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1725 GetRequests, 1711 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-12-08 15:51:21,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 15:51:21,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 15:51:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 15:51:21,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 15:51:21,043 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 855 [2018-12-08 15:51:21,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:51:21,043 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 15:51:21,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:51:21,044 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 15:51:21,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 15:51:21,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 15:51:21,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,475 WARN L180 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 308 [2018-12-08 15:51:21,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,535 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,540 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,540 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,542 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,543 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,547 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,547 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,668 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 15:51:21,809 WARN L180 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 276 [2018-12-08 15:51:22,112 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 38 [2018-12-08 15:51:22,872 WARN L180 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 43 [2018-12-08 15:51:23,553 WARN L180 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 43 [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 15:51:23,555 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-12-08 15:51:23,555 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-12-08 15:51:23,556 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,557 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-12-08 15:51:23,558 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-12-08 15:51:23,559 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-12-08 15:51:23,560 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-12-08 15:51:23,560 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-12-08 15:51:23,560 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,560 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,560 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,560 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-12-08 15:51:23,560 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-12-08 15:51:23,560 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-08 15:51:23,560 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-08 15:51:23,560 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-08 15:51:23,560 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-12-08 15:51:23,560 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse0 (= 9 |old(~a15~0)|)) (.cse2 (not (= 1 |old(~a24~0)|))) (.cse1 (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)))) (and (or (or (not (= 6 |old(~a21~0)|)) .cse0) (< 0 (+ |old(~a12~0)| 43)) .cse1) (or .cse1 (= 7 |old(~a15~0)|) .cse2 .cse0) (or .cse1 .cse2 (<= |old(~a12~0)| 11)) (or (= 9 |old(~a21~0)|) .cse2 .cse1))) [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,561 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-12-08 15:51:23,562 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,563 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-12-08 15:51:23,564 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-12-08 15:51:23,565 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-12-08 15:51:23,566 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-12-08 15:51:23,567 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-08 15:51:23,567 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-08 15:51:23,567 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-08 15:51:23,567 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-12-08 15:51:23,567 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 15:51:23,567 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-12-08 15:51:23,567 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 15:51:23,567 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 15:51:23,567 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-12-08 15:51:23,567 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-12-08 15:51:23,567 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (not (= ~a15~0 9))) (.cse1 (= 1 ~a24~0))) (or (not (= 8 |old(~a15~0)|)) (and .cse0 (<= (+ ~a12~0 43) 0) (= 6 ~a21~0)) (not (= 7 |old(~a21~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (< 11 ~a12~0) .cse1) (and (not (= 9 ~a21~0)) (= ~a24~0 |old(~a24~0)|)) (not (= 1 |old(~a24~0)|)) (and .cse0 .cse1 (not (= ~a15~0 7))))) [2018-12-08 15:51:23,567 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-12-08 15:51:23,567 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-12-08 15:51:23,567 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (not (= ~a15~0 9))) (.cse1 (= 1 ~a24~0))) (or (not (= 8 |old(~a15~0)|)) (and .cse0 (<= (+ ~a12~0 43) 0) (= 6 ~a21~0)) (not (= 7 |old(~a21~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (< 11 ~a12~0) .cse1) (and (not (= 9 ~a21~0)) (= ~a24~0 |old(~a24~0)|)) (not (= 1 |old(~a24~0)|)) (and .cse0 .cse1 (not (= ~a15~0 7))))) [2018-12-08 15:51:23,567 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-12-08 15:51:23,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:51:23 BoogieIcfgContainer [2018-12-08 15:51:23,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 15:51:23,574 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 15:51:23,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 15:51:23,574 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 15:51:23,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:48:59" (3/4) ... [2018-12-08 15:51:23,576 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 15:51:23,580 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 15:51:23,580 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-08 15:51:23,580 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 15:51:23,587 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-08 15:51:23,587 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 15:51:23,605 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(8 == \old(a15)) || ((!(a15 == 9) && a12 + 43 <= 0) && 6 == a21)) || !(7 == \old(a21))) || !(0 == \old(a12) + 49)) || (11 < a12 && 1 == a24)) || (!(9 == a21) && a24 == \old(a24))) || !(1 == \old(a24))) || ((!(a15 == 9) && 1 == a24) && !(a15 == 7)) [2018-12-08 15:51:23,674 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f2557920-465e-4be9-b428-6d7068ee7566/bin-2019/utaipan/witness.graphml [2018-12-08 15:51:23,674 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 15:51:23,675 INFO L168 Benchmark]: Toolchain (without parser) took 145623.51 ms. Allocated memory was 1.0 GB in the beginning and 3.3 GB in the end (delta: 2.3 GB). Free memory was 951.3 MB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-12-08 15:51:23,676 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:51:23,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:23,676 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:51:23,676 INFO L168 Benchmark]: Boogie Preprocessor took 51.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:23,677 INFO L168 Benchmark]: RCFGBuilder took 727.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.3 MB in the end (delta: 126.3 MB). Peak memory consumption was 126.3 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:23,677 INFO L168 Benchmark]: TraceAbstraction took 144346.77 ms. Allocated memory was 1.2 GB in the beginning and 3.3 GB in the end (delta: 2.1 GB). Free memory was 999.3 MB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.4 GB. Max. memory is 11.5 GB. [2018-12-08 15:51:23,677 INFO L168 Benchmark]: Witness Printer took 100.75 ms. Allocated memory is still 3.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:23,679 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 365.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 727.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.3 MB in the end (delta: 126.3 MB). Peak memory consumption was 126.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 144346.77 ms. Allocated memory was 1.2 GB in the beginning and 3.3 GB in the end (delta: 2.1 GB). Free memory was 999.3 MB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.4 GB. Max. memory is 11.5 GB. * Witness Printer took 100.75 ms. Allocated memory is still 3.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((!(8 == \old(a15)) || ((!(a15 == 9) && a12 + 43 <= 0) && 6 == a21)) || !(7 == \old(a21))) || !(0 == \old(a12) + 49)) || (11 < a12 && 1 == a24)) || (!(9 == a21) && a24 == \old(a24))) || !(1 == \old(a24))) || ((!(a15 == 9) && 1 == a24) && !(a15 == 7)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 144.2s OverallTime, 13 OverallIterations, 7 TraceHistogramMax, 89.7s AutomataDifference, 0.0s DeadEndRemovalTime, 2.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 1219 SDtfs, 9367 SDslu, 923 SDs, 0 SdLazy, 15994 SolverSat, 2727 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.9s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 9880 GetRequests, 9673 SyntacticMatches, 7 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1343 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6558occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 36.2s AbstIntTime, 9 AbstIntIterations, 4 AbstIntStrong, 0.997273938029088 AbsIntWeakeningRatio, 0.08758169934640522 AbsIntAvgWeakeningVarsNumRemoved, 16.15032679738562 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 1191 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 211 PreInvPairs, 309 NumberOfFragments, 277 HoareAnnotationTreeSize, 211 FomulaSimplifications, 126175 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 52051 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 9962 NumberOfCodeBlocks, 9454 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 14002 ConstructedInterpolants, 35 QuantifiedInterpolants, 34351084 SizeOfPredicates, 20 NumberOfNonLiveVariables, 5194 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 25 InterpolantComputations, 7 PerfectInterpolantSequences, 21965/25337 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...