./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label55_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_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label55_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/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 d7ee2ac819f7b75cfc0560bac3b8eea31e76c5dc .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 00:12:06,263 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 00:12:06,264 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 00:12:06,270 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 00:12:06,270 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 00:12:06,271 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 00:12:06,271 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 00:12:06,272 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 00:12:06,273 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 00:12:06,273 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 00:12:06,274 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 00:12:06,274 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 00:12:06,274 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 00:12:06,275 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 00:12:06,276 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 00:12:06,276 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 00:12:06,276 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 00:12:06,277 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 00:12:06,278 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 00:12:06,279 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 00:12:06,280 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 00:12:06,281 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 00:12:06,282 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 00:12:06,282 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 00:12:06,282 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 00:12:06,282 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 00:12:06,283 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 00:12:06,283 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 00:12:06,284 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 00:12:06,284 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 00:12:06,284 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 00:12:06,285 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 00:12:06,285 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 00:12:06,285 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 00:12:06,286 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 00:12:06,286 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 00:12:06,286 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 00:12:06,293 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 00:12:06,294 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 00:12:06,294 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 00:12:06,294 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 00:12:06,294 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 00:12:06,294 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 00:12:06,294 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 00:12:06,295 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 00:12:06,295 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 00:12:06,295 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 00:12:06,295 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 00:12:06,295 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 00:12:06,295 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 00:12:06,295 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 00:12:06,295 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 00:12:06,296 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 00:12:06,296 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 00:12:06,296 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 00:12:06,296 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 00:12:06,296 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 00:12:06,296 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 00:12:06,296 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 00:12:06,296 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 00:12:06,296 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 00:12:06,296 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 00:12:06,296 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 00:12:06,297 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 00:12:06,297 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 00:12:06,297 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 00:12:06,297 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 00:12:06,297 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 00:12:06,297 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 00:12:06,297 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 00:12:06,297 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 00:12:06,297 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 00:12:06,297 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 00:12:06,297 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_288abcaa-4230-4618-9f35-80bd3e061b71/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 -> d7ee2ac819f7b75cfc0560bac3b8eea31e76c5dc [2018-12-03 00:12:06,314 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 00:12:06,321 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 00:12:06,323 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 00:12:06,324 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 00:12:06,324 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 00:12:06,324 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label55_true-unreach-call_false-termination.c [2018-12-03 00:12:06,361 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/data/3f07283e6/4911bfa9b8594440848b9e6a4d2e5c27/FLAG087fe53a0 [2018-12-03 00:12:06,748 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 00:12:06,749 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/sv-benchmarks/c/eca-rers2012/Problem14_label55_true-unreach-call_false-termination.c [2018-12-03 00:12:06,755 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/data/3f07283e6/4911bfa9b8594440848b9e6a4d2e5c27/FLAG087fe53a0 [2018-12-03 00:12:07,088 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/data/3f07283e6/4911bfa9b8594440848b9e6a4d2e5c27 [2018-12-03 00:12:07,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 00:12:07,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 00:12:07,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 00:12:07,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 00:12:07,099 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 00:12:07,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:12:07" (1/1) ... [2018-12-03 00:12:07,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16dd610b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:12:07, skipping insertion in model container [2018-12-03 00:12:07,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:12:07" (1/1) ... [2018-12-03 00:12:07,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 00:12:07,137 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 00:12:07,334 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 00:12:07,337 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 00:12:07,400 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 00:12:07,456 INFO L195 MainTranslator]: Completed translation [2018-12-03 00:12:07,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:12:07 WrapperNode [2018-12-03 00:12:07,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 00:12:07,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 00:12:07,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 00:12:07,457 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 00:12:07,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:12:07" (1/1) ... [2018-12-03 00:12:07,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:12:07" (1/1) ... [2018-12-03 00:12:07,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 00:12:07,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 00:12:07,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 00:12:07,477 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 00:12:07,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:12:07" (1/1) ... [2018-12-03 00:12:07,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:12:07" (1/1) ... [2018-12-03 00:12:07,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:12:07" (1/1) ... [2018-12-03 00:12:07,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:12:07" (1/1) ... [2018-12-03 00:12:07,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:12:07" (1/1) ... [2018-12-03 00:12:07,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:12:07" (1/1) ... [2018-12-03 00:12:07,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:12:07" (1/1) ... [2018-12-03 00:12:07,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 00:12:07,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 00:12:07,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 00:12:07,519 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 00:12:07,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:12:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 00:12:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 00:12:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 00:12:07,553 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-03 00:12:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-03 00:12:07,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 00:12:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 00:12:07,553 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 00:12:07,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 00:12:08,257 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 00:12:08,257 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 00:12:08,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:12:08 BoogieIcfgContainer [2018-12-03 00:12:08,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 00:12:08,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 00:12:08,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 00:12:08,261 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 00:12:08,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:12:07" (1/3) ... [2018-12-03 00:12:08,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c6aa0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:12:08, skipping insertion in model container [2018-12-03 00:12:08,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:12:07" (2/3) ... [2018-12-03 00:12:08,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c6aa0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:12:08, skipping insertion in model container [2018-12-03 00:12:08,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:12:08" (3/3) ... [2018-12-03 00:12:08,264 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label55_true-unreach-call_false-termination.c [2018-12-03 00:12:08,272 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 00:12:08,279 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 00:12:08,293 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 00:12:08,315 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 00:12:08,315 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 00:12:08,315 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 00:12:08,315 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 00:12:08,315 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 00:12:08,315 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 00:12:08,315 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 00:12:08,315 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 00:12:08,330 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-12-03 00:12:08,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-12-03 00:12:08,335 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:12:08,336 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 00:12:08,337 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:12:08,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:12:08,341 INFO L82 PathProgramCache]: Analyzing trace with hash 606791250, now seen corresponding path program 1 times [2018-12-03 00:12:08,343 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:12:08,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:12:08,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:12:08,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:12:08,373 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:12:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:12:08,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:12:08,530 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 00:12:08,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 00:12:08,530 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 00:12:08,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 00:12:08,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 00:12:08,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-03 00:12:08,549 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2018-12-03 00:12:09,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:12:09,462 INFO L93 Difference]: Finished difference Result 890 states and 1607 transitions. [2018-12-03 00:12:09,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 00:12:09,464 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2018-12-03 00:12:09,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:12:09,473 INFO L225 Difference]: With dead ends: 890 [2018-12-03 00:12:09,473 INFO L226 Difference]: Without dead ends: 554 [2018-12-03 00:12:09,476 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-03 00:12:09,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-12-03 00:12:09,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2018-12-03 00:12:09,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-12-03 00:12:09,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 806 transitions. [2018-12-03 00:12:09,520 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 806 transitions. Word has length 63 [2018-12-03 00:12:09,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:12:09,520 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 806 transitions. [2018-12-03 00:12:09,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 00:12:09,520 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 806 transitions. [2018-12-03 00:12:09,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-12-03 00:12:09,524 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:12:09,524 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-03 00:12:09,524 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:12:09,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:12:09,525 INFO L82 PathProgramCache]: Analyzing trace with hash 905975074, now seen corresponding path program 1 times [2018-12-03 00:12:09,525 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:12:09,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:12:09,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:12:09,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:12:09,526 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:12:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:12:09,633 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:12:09,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 00:12:09,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 00:12:09,633 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 00:12:09,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 00:12:09,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 00:12:09,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-03 00:12:09,635 INFO L87 Difference]: Start difference. First operand 554 states and 806 transitions. Second operand 4 states. [2018-12-03 00:12:10,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:12:10,359 INFO L93 Difference]: Finished difference Result 2194 states and 3255 transitions. [2018-12-03 00:12:10,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 00:12:10,360 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2018-12-03 00:12:10,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:12:10,366 INFO L225 Difference]: With dead ends: 2194 [2018-12-03 00:12:10,366 INFO L226 Difference]: Without dead ends: 1646 [2018-12-03 00:12:10,368 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-03 00:12:10,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2018-12-03 00:12:10,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1464. [2018-12-03 00:12:10,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1464 states. [2018-12-03 00:12:10,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 2038 transitions. [2018-12-03 00:12:10,411 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 2038 transitions. Word has length 175 [2018-12-03 00:12:10,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:12:10,412 INFO L480 AbstractCegarLoop]: Abstraction has 1464 states and 2038 transitions. [2018-12-03 00:12:10,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 00:12:10,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 2038 transitions. [2018-12-03 00:12:10,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-12-03 00:12:10,417 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:12:10,417 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 00:12:10,417 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:12:10,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:12:10,417 INFO L82 PathProgramCache]: Analyzing trace with hash 338201322, now seen corresponding path program 1 times [2018-12-03 00:12:10,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:12:10,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:12:10,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:12:10,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:12:10,418 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:12:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:12:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:12:10,575 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:12:10,575 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:12:10,576 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 258 with the following transitions: [2018-12-03 00:12:10,577 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [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], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:12:10,602 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:12:10,602 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:12:10,822 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 00:12:10,823 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Performed 1024 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1024 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 24 variables. [2018-12-03 00:12:10,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:12:10,834 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 00:12:11,089 INFO L227 lantSequenceWeakener]: Weakened 248 states. On average, predicates are now at 78.1% of their original sizes. [2018-12-03 00:12:11,089 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 00:12:11,114 INFO L418 sIntCurrentIteration]: We unified 256 AI predicates to 256 [2018-12-03 00:12:11,114 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 00:12:11,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 00:12:11,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-12-03 00:12:11,115 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 00:12:11,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 00:12:11,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 00:12:11,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-03 00:12:11,115 INFO L87 Difference]: Start difference. First operand 1464 states and 2038 transitions. Second operand 6 states. [2018-12-03 00:12:24,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:12:24,111 INFO L93 Difference]: Finished difference Result 3105 states and 4296 transitions. [2018-12-03 00:12:24,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 00:12:24,111 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 257 [2018-12-03 00:12:24,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:12:24,115 INFO L225 Difference]: With dead ends: 3105 [2018-12-03 00:12:24,115 INFO L226 Difference]: Without dead ends: 1647 [2018-12-03 00:12:24,117 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 257 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-03 00:12:24,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2018-12-03 00:12:24,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1646. [2018-12-03 00:12:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-12-03 00:12:24,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2227 transitions. [2018-12-03 00:12:24,143 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2227 transitions. Word has length 257 [2018-12-03 00:12:24,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:12:24,143 INFO L480 AbstractCegarLoop]: Abstraction has 1646 states and 2227 transitions. [2018-12-03 00:12:24,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 00:12:24,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2227 transitions. [2018-12-03 00:12:24,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2018-12-03 00:12:24,147 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:12:24,147 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 00:12:24,147 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:12:24,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:12:24,148 INFO L82 PathProgramCache]: Analyzing trace with hash 895332674, now seen corresponding path program 1 times [2018-12-03 00:12:24,148 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:12:24,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:12:24,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:12:24,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:12:24,148 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:12:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:12:24,612 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 253 proven. 161 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-03 00:12:24,613 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:12:24,613 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:12:24,613 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 342 with the following transitions: [2018-12-03 00:12:24,613 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [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], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:12:24,616 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:12:24,616 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:12:24,718 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 00:12:24,718 INFO L272 AbstractInterpreter]: Visited 120 different actions 233 times. Merged at 3 different actions 3 times. Never widened. Performed 2103 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2103 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-03 00:12:24,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:12:24,723 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 00:12:24,944 INFO L227 lantSequenceWeakener]: Weakened 338 states. On average, predicates are now at 77.94% of their original sizes. [2018-12-03 00:12:24,944 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 00:12:24,984 INFO L418 sIntCurrentIteration]: We unified 340 AI predicates to 340 [2018-12-03 00:12:24,984 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 00:12:24,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 00:12:24,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-12-03 00:12:24,984 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 00:12:24,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 00:12:24,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 00:12:24,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-03 00:12:24,985 INFO L87 Difference]: Start difference. First operand 1646 states and 2227 transitions. Second operand 10 states. [2018-12-03 00:13:10,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:13:10,022 INFO L93 Difference]: Finished difference Result 3684 states and 4968 transitions. [2018-12-03 00:13:10,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-03 00:13:10,022 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 341 [2018-12-03 00:13:10,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:13:10,028 INFO L225 Difference]: With dead ends: 3684 [2018-12-03 00:13:10,028 INFO L226 Difference]: Without dead ends: 2226 [2018-12-03 00:13:10,030 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 349 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-03 00:13:10,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2018-12-03 00:13:10,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 2012. [2018-12-03 00:13:10,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2012 states. [2018-12-03 00:13:10,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 2651 transitions. [2018-12-03 00:13:10,071 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 2651 transitions. Word has length 341 [2018-12-03 00:13:10,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:13:10,071 INFO L480 AbstractCegarLoop]: Abstraction has 2012 states and 2651 transitions. [2018-12-03 00:13:10,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 00:13:10,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 2651 transitions. [2018-12-03 00:13:10,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2018-12-03 00:13:10,076 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:13:10,076 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 00:13:10,076 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:13:10,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:13:10,076 INFO L82 PathProgramCache]: Analyzing trace with hash -825639, now seen corresponding path program 1 times [2018-12-03 00:13:10,076 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:13:10,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:13:10,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:13:10,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:13:10,077 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:13:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:13:10,612 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 179 proven. 267 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-03 00:13:10,612 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:13:10,612 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:13:10,612 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 393 with the following transitions: [2018-12-03 00:13:10,612 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [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], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:13:10,615 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:13:10,615 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:13:10,771 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 00:13:10,772 INFO L272 AbstractInterpreter]: Visited 142 different actions 278 times. Merged at 4 different actions 4 times. Never widened. Performed 2658 root evaluator evaluations with a maximum evaluation depth of 13. Performed 2658 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-03 00:13:10,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:13:10,781 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 00:13:10,988 INFO L227 lantSequenceWeakener]: Weakened 389 states. On average, predicates are now at 77.85% of their original sizes. [2018-12-03 00:13:10,989 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 00:13:11,039 INFO L418 sIntCurrentIteration]: We unified 391 AI predicates to 391 [2018-12-03 00:13:11,039 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 00:13:11,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 00:13:11,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-12-03 00:13:11,040 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 00:13:11,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 00:13:11,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 00:13:11,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-03 00:13:11,040 INFO L87 Difference]: Start difference. First operand 2012 states and 2651 transitions. Second operand 10 states. [2018-12-03 00:13:21,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:13:21,080 INFO L93 Difference]: Finished difference Result 4386 states and 5709 transitions. [2018-12-03 00:13:21,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-03 00:13:21,081 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 392 [2018-12-03 00:13:21,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:13:21,084 INFO L225 Difference]: With dead ends: 4386 [2018-12-03 00:13:21,084 INFO L226 Difference]: Without dead ends: 2380 [2018-12-03 00:13:21,086 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 399 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-03 00:13:21,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2018-12-03 00:13:21,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 2378. [2018-12-03 00:13:21,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2378 states. [2018-12-03 00:13:21,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 3039 transitions. [2018-12-03 00:13:21,112 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 3039 transitions. Word has length 392 [2018-12-03 00:13:21,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:13:21,113 INFO L480 AbstractCegarLoop]: Abstraction has 2378 states and 3039 transitions. [2018-12-03 00:13:21,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 00:13:21,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 3039 transitions. [2018-12-03 00:13:21,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-12-03 00:13:21,115 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:13:21,115 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 00:13:21,116 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:13:21,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:13:21,116 INFO L82 PathProgramCache]: Analyzing trace with hash 62409986, now seen corresponding path program 1 times [2018-12-03 00:13:21,116 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:13:21,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:13:21,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:13:21,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:13:21,117 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:13:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:13:21,382 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 304 proven. 124 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-12-03 00:13:21,382 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:13:21,382 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:13:21,382 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 394 with the following transitions: [2018-12-03 00:13:21,383 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [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], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:13:21,384 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:13:21,385 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:13:24,701 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 00:13:24,702 INFO L272 AbstractInterpreter]: Visited 120 different actions 357 times. Merged at 6 different actions 17 times. Never widened. Performed 3420 root evaluator evaluations with a maximum evaluation depth of 21. Performed 3420 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-03 00:13:24,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:13:24,703 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 00:13:25,335 INFO L227 lantSequenceWeakener]: Weakened 390 states. On average, predicates are now at 80.48% of their original sizes. [2018-12-03 00:13:25,336 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 00:13:25,371 INFO L418 sIntCurrentIteration]: We unified 392 AI predicates to 392 [2018-12-03 00:13:25,372 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 00:13:25,372 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 00:13:25,372 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-12-03 00:13:25,372 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 00:13:25,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 00:13:25,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 00:13:25,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-03 00:13:25,373 INFO L87 Difference]: Start difference. First operand 2378 states and 3039 transitions. Second operand 10 states. [2018-12-03 00:13:40,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:13:40,744 INFO L93 Difference]: Finished difference Result 5153 states and 6965 transitions. [2018-12-03 00:13:40,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-03 00:13:40,744 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 393 [2018-12-03 00:13:40,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:13:40,748 INFO L225 Difference]: With dead ends: 5153 [2018-12-03 00:13:40,748 INFO L226 Difference]: Without dead ends: 3147 [2018-12-03 00:13:40,750 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 403 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-12-03 00:13:40,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3147 states. [2018-12-03 00:13:40,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3147 to 3124. [2018-12-03 00:13:40,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3124 states. [2018-12-03 00:13:40,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 4008 transitions. [2018-12-03 00:13:40,781 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 4008 transitions. Word has length 393 [2018-12-03 00:13:40,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:13:40,781 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 4008 transitions. [2018-12-03 00:13:40,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 00:13:40,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 4008 transitions. [2018-12-03 00:13:40,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2018-12-03 00:13:40,785 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:13:40,785 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 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] [2018-12-03 00:13:40,785 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:13:40,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:13:40,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1394222806, now seen corresponding path program 1 times [2018-12-03 00:13:40,785 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:13:40,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:13:40,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:13:40,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:13:40,786 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:13:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:13:40,928 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 531 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2018-12-03 00:13:40,929 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:13:40,929 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:13:40,929 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 478 with the following transitions: [2018-12-03 00:13:40,929 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [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], [654], [655], [658], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:13:40,931 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:13:40,931 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:13:47,096 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 00:13:47,097 INFO L272 AbstractInterpreter]: Visited 122 different actions 491 times. Merged at 8 different actions 36 times. Widened at 1 different actions 1 times. Performed 4679 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4679 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-03 00:13:47,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:13:47,099 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 00:13:47,099 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:13:47,099 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 00:13:47,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:13:47,107 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 00:13:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:13:47,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 00:13:47,340 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 531 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2018-12-03 00:13:47,341 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 00:13:47,540 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 531 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2018-12-03 00:13:47,555 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 00:13:47,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-12-03 00:13:47,556 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 00:13:47,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 00:13:47,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 00:13:47,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-03 00:13:47,557 INFO L87 Difference]: Start difference. First operand 3124 states and 4008 transitions. Second operand 9 states. [2018-12-03 00:13:49,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:13:49,904 INFO L93 Difference]: Finished difference Result 8262 states and 11584 transitions. [2018-12-03 00:13:49,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-12-03 00:13:49,904 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 477 [2018-12-03 00:13:49,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:13:49,918 INFO L225 Difference]: With dead ends: 8262 [2018-12-03 00:13:49,918 INFO L226 Difference]: Without dead ends: 5326 [2018-12-03 00:13:49,922 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1014 GetRequests, 974 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=323, Invalid=1237, Unknown=0, NotChecked=0, Total=1560 [2018-12-03 00:13:49,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5326 states. [2018-12-03 00:13:49,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5326 to 4544. [2018-12-03 00:13:49,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4544 states. [2018-12-03 00:13:49,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4544 states to 4544 states and 6015 transitions. [2018-12-03 00:13:49,994 INFO L78 Accepts]: Start accepts. Automaton has 4544 states and 6015 transitions. Word has length 477 [2018-12-03 00:13:49,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:13:49,994 INFO L480 AbstractCegarLoop]: Abstraction has 4544 states and 6015 transitions. [2018-12-03 00:13:49,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 00:13:49,995 INFO L276 IsEmpty]: Start isEmpty. Operand 4544 states and 6015 transitions. [2018-12-03 00:13:49,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2018-12-03 00:13:49,999 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:13:49,999 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 00:13:49,999 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:13:49,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:13:50,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1836091141, now seen corresponding path program 1 times [2018-12-03 00:13:50,000 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:13:50,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:13:50,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:13:50,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:13:50,000 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:13:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:13:50,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 661 proven. 2 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2018-12-03 00:13:50,175 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:13:50,175 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:13:50,175 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 549 with the following transitions: [2018-12-03 00:13:50,176 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [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], [550], [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], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:13:50,177 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:13:50,177 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:13:53,936 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 00:13:53,936 INFO L272 AbstractInterpreter]: Visited 123 different actions 487 times. Merged at 9 different actions 28 times. Never widened. Performed 4696 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4696 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-03 00:13:53,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:13:53,937 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 00:13:53,937 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:13:53,937 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 00:13:53,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:13:53,943 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 00:13:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:13:54,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 00:13:54,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 661 proven. 2 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2018-12-03 00:13:54,106 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 00:13:54,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 661 proven. 2 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2018-12-03 00:13:54,284 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 00:13:54,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-12-03 00:13:54,284 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 00:13:54,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 00:13:54,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 00:13:54,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-12-03 00:13:54,285 INFO L87 Difference]: Start difference. First operand 4544 states and 6015 transitions. Second operand 9 states. [2018-12-03 00:13:55,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:13:55,500 INFO L93 Difference]: Finished difference Result 9838 states and 13740 transitions. [2018-12-03 00:13:55,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-03 00:13:55,501 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 548 [2018-12-03 00:13:55,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:13:55,517 INFO L225 Difference]: With dead ends: 9838 [2018-12-03 00:13:55,517 INFO L226 Difference]: Without dead ends: 5082 [2018-12-03 00:13:55,523 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1117 GetRequests, 1099 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2018-12-03 00:13:55,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5082 states. [2018-12-03 00:13:55,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5082 to 4968. [2018-12-03 00:13:55,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4968 states. [2018-12-03 00:13:55,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4968 states to 4968 states and 6503 transitions. [2018-12-03 00:13:55,592 INFO L78 Accepts]: Start accepts. Automaton has 4968 states and 6503 transitions. Word has length 548 [2018-12-03 00:13:55,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:13:55,593 INFO L480 AbstractCegarLoop]: Abstraction has 4968 states and 6503 transitions. [2018-12-03 00:13:55,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 00:13:55,593 INFO L276 IsEmpty]: Start isEmpty. Operand 4968 states and 6503 transitions. [2018-12-03 00:13:55,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2018-12-03 00:13:55,597 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:13:55,597 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 00:13:55,597 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:13:55,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:13:55,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1391528455, now seen corresponding path program 1 times [2018-12-03 00:13:55,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:13:55,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:13:55,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:13:55,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:13:55,598 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:13:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:13:56,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 591 proven. 409 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2018-12-03 00:13:56,135 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:13:56,135 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:13:56,135 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 553 with the following transitions: [2018-12-03 00:13:56,136 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [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], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:13:56,137 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:13:56,137 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:14:03,046 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 00:14:03,046 INFO L272 AbstractInterpreter]: Visited 124 different actions 487 times. Merged at 8 different actions 24 times. Never widened. Performed 4754 root evaluator evaluations with a maximum evaluation depth of 22. Performed 4754 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-03 00:14:03,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:03,049 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 00:14:03,049 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:03,049 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 00:14:03,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:03,055 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 00:14:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:03,116 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 00:14:03,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2018-12-03 00:14:03,199 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 00:14:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2018-12-03 00:14:03,317 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-03 00:14:03,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [14] total 16 [2018-12-03 00:14:03,317 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 00:14:03,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 00:14:03,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 00:14:03,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-12-03 00:14:03,318 INFO L87 Difference]: Start difference. First operand 4968 states and 6503 transitions. Second operand 3 states. [2018-12-03 00:14:03,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:14:03,826 INFO L93 Difference]: Finished difference Result 11426 states and 15320 transitions. [2018-12-03 00:14:03,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 00:14:03,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 552 [2018-12-03 00:14:03,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:14:03,841 INFO L225 Difference]: With dead ends: 11426 [2018-12-03 00:14:03,841 INFO L226 Difference]: Without dead ends: 6646 [2018-12-03 00:14:03,848 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1119 GetRequests, 1105 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-12-03 00:14:03,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6646 states. [2018-12-03 00:14:03,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6646 to 6090. [2018-12-03 00:14:03,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6090 states. [2018-12-03 00:14:03,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 7911 transitions. [2018-12-03 00:14:03,922 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 7911 transitions. Word has length 552 [2018-12-03 00:14:03,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:14:03,922 INFO L480 AbstractCegarLoop]: Abstraction has 6090 states and 7911 transitions. [2018-12-03 00:14:03,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 00:14:03,922 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 7911 transitions. [2018-12-03 00:14:03,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2018-12-03 00:14:03,927 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:14:03,927 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 00:14:03,927 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:14:03,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:03,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1555970989, now seen corresponding path program 1 times [2018-12-03 00:14:03,927 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:14:03,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:03,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:03,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:03,928 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:14:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:04,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 576 proven. 427 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-12-03 00:14:04,435 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:04,435 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:14:04,435 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 561 with the following transitions: [2018-12-03 00:14:04,435 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [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], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:14:04,436 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:14:04,436 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:14:08,217 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 00:14:08,217 INFO L272 AbstractInterpreter]: Visited 123 different actions 491 times. Merged at 9 different actions 32 times. Never widened. Performed 4734 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4734 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-03 00:14:08,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:08,218 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 00:14:08,219 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:08,219 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 00:14:08,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:08,226 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 00:14:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:08,291 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 00:14:08,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 673 proven. 2 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2018-12-03 00:14:08,416 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 00:14:08,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 673 proven. 2 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2018-12-03 00:14:08,577 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 00:14:08,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-12-03 00:14:08,578 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 00:14:08,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-03 00:14:08,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-03 00:14:08,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-12-03 00:14:08,578 INFO L87 Difference]: Start difference. First operand 6090 states and 7911 transitions. Second operand 17 states. [2018-12-03 00:14:11,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:14:11,028 INFO L93 Difference]: Finished difference Result 10873 states and 14825 transitions. [2018-12-03 00:14:11,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-12-03 00:14:11,029 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 560 [2018-12-03 00:14:11,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:14:11,036 INFO L225 Difference]: With dead ends: 10873 [2018-12-03 00:14:11,036 INFO L226 Difference]: Without dead ends: 3945 [2018-12-03 00:14:11,047 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1199 GetRequests, 1138 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=819, Invalid=2963, Unknown=0, NotChecked=0, Total=3782 [2018-12-03 00:14:11,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3945 states. [2018-12-03 00:14:11,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3945 to 3570. [2018-12-03 00:14:11,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3570 states. [2018-12-03 00:14:11,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3570 states to 3570 states and 3876 transitions. [2018-12-03 00:14:11,088 INFO L78 Accepts]: Start accepts. Automaton has 3570 states and 3876 transitions. Word has length 560 [2018-12-03 00:14:11,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:14:11,088 INFO L480 AbstractCegarLoop]: Abstraction has 3570 states and 3876 transitions. [2018-12-03 00:14:11,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-03 00:14:11,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3570 states and 3876 transitions. [2018-12-03 00:14:11,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 740 [2018-12-03 00:14:11,092 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:14:11,092 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 00:14:11,092 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:14:11,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:11,093 INFO L82 PathProgramCache]: Analyzing trace with hash -429236790, now seen corresponding path program 1 times [2018-12-03 00:14:11,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:14:11,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:11,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:11,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:11,094 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:14:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:11,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 707 proven. 2 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2018-12-03 00:14:11,390 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:11,390 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:14:11,391 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 740 with the following transitions: [2018-12-03 00:14:11,391 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [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], [638], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [910], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:14:11,392 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:14:11,392 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:14:15,266 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 00:14:15,266 INFO L272 AbstractInterpreter]: Visited 191 different actions 763 times. Merged at 9 different actions 32 times. Never widened. Performed 8385 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8385 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-03 00:14:15,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:15,268 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 00:14:15,268 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:15,268 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 00:14:15,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:15,275 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 00:14:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:15,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 00:14:15,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 707 proven. 2 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2018-12-03 00:14:15,488 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 00:14:15,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 707 proven. 2 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2018-12-03 00:14:15,720 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 00:14:15,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2018-12-03 00:14:15,721 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 00:14:15,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 00:14:15,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 00:14:15,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 00:14:15,721 INFO L87 Difference]: Start difference. First operand 3570 states and 3876 transitions. Second operand 10 states. [2018-12-03 00:14:16,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:14:16,617 INFO L93 Difference]: Finished difference Result 8270 states and 9156 transitions. [2018-12-03 00:14:16,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-03 00:14:16,618 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 739 [2018-12-03 00:14:16,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:14:16,624 INFO L225 Difference]: With dead ends: 8270 [2018-12-03 00:14:16,625 INFO L226 Difference]: Without dead ends: 4886 [2018-12-03 00:14:16,629 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1506 GetRequests, 1484 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2018-12-03 00:14:16,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4886 states. [2018-12-03 00:14:16,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4886 to 4704. [2018-12-03 00:14:16,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4704 states. [2018-12-03 00:14:16,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4704 states to 4704 states and 5093 transitions. [2018-12-03 00:14:16,673 INFO L78 Accepts]: Start accepts. Automaton has 4704 states and 5093 transitions. Word has length 739 [2018-12-03 00:14:16,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:14:16,674 INFO L480 AbstractCegarLoop]: Abstraction has 4704 states and 5093 transitions. [2018-12-03 00:14:16,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 00:14:16,674 INFO L276 IsEmpty]: Start isEmpty. Operand 4704 states and 5093 transitions. [2018-12-03 00:14:16,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2018-12-03 00:14:16,678 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:14:16,679 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 00:14:16,679 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:14:16,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:16,679 INFO L82 PathProgramCache]: Analyzing trace with hash 2068688985, now seen corresponding path program 1 times [2018-12-03 00:14:16,679 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:14:16,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:16,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:16,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:16,680 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:14:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:16,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 866 proven. 2 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked. [2018-12-03 00:14:16,940 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:16,940 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:14:16,940 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 825 with the following transitions: [2018-12-03 00:14:16,941 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [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], [910], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:14:16,942 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:14:16,942 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:14:20,803 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 00:14:20,803 INFO L272 AbstractInterpreter]: Visited 192 different actions 766 times. Merged at 10 different actions 31 times. Never widened. Performed 8434 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8434 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-03 00:14:20,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:20,804 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 00:14:20,804 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:20,805 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 00:14:20,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:20,811 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 00:14:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:20,897 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 00:14:21,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 866 proven. 2 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked. [2018-12-03 00:14:21,060 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 00:14:21,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 866 proven. 2 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked. [2018-12-03 00:14:21,313 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 00:14:21,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2018-12-03 00:14:21,313 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 00:14:21,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 00:14:21,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 00:14:21,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-12-03 00:14:21,314 INFO L87 Difference]: Start difference. First operand 4704 states and 5093 transitions. Second operand 6 states. [2018-12-03 00:14:21,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:14:21,934 INFO L93 Difference]: Finished difference Result 8260 states and 8865 transitions. [2018-12-03 00:14:21,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-03 00:14:21,935 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 824 [2018-12-03 00:14:21,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:14:21,939 INFO L225 Difference]: With dead ends: 8260 [2018-12-03 00:14:21,939 INFO L226 Difference]: Without dead ends: 3730 [2018-12-03 00:14:21,943 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1662 GetRequests, 1649 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-12-03 00:14:21,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2018-12-03 00:14:21,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 3160. [2018-12-03 00:14:21,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3160 states. [2018-12-03 00:14:21,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 3264 transitions. [2018-12-03 00:14:21,970 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 3264 transitions. Word has length 824 [2018-12-03 00:14:21,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:14:21,971 INFO L480 AbstractCegarLoop]: Abstraction has 3160 states and 3264 transitions. [2018-12-03 00:14:21,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 00:14:21,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 3264 transitions. [2018-12-03 00:14:21,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2018-12-03 00:14:21,975 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:14:21,975 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 00:14:21,975 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:14:21,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:21,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1082900759, now seen corresponding path program 1 times [2018-12-03 00:14:21,976 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:14:21,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:21,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:21,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:21,977 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:14:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:22,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 697 proven. 840 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2018-12-03 00:14:22,947 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:22,947 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:14:22,947 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 833 with the following transitions: [2018-12-03 00:14:22,947 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [910], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:14:22,949 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:14:22,949 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:14:26,819 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 00:14:26,819 INFO L272 AbstractInterpreter]: Visited 192 different actions 771 times. Merged at 10 different actions 36 times. Widened at 1 different actions 2 times. Performed 8497 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8497 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-03 00:14:26,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:26,821 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 00:14:26,821 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:26,821 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 00:14:26,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:26,827 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 00:14:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:26,912 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 00:14:27,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 1391 proven. 2 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2018-12-03 00:14:27,182 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 00:14:27,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 756 proven. 196 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked. [2018-12-03 00:14:27,679 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 00:14:27,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 19 [2018-12-03 00:14:27,679 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 00:14:27,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-03 00:14:27,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-03 00:14:27,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2018-12-03 00:14:27,680 INFO L87 Difference]: Start difference. First operand 3160 states and 3264 transitions. Second operand 16 states. [2018-12-03 00:14:29,238 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2018-12-03 00:14:30,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:14:30,647 INFO L93 Difference]: Finished difference Result 5586 states and 5791 transitions. [2018-12-03 00:14:30,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-12-03 00:14:30,648 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 832 [2018-12-03 00:14:30,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:14:30,655 INFO L225 Difference]: With dead ends: 5586 [2018-12-03 00:14:30,655 INFO L226 Difference]: Without dead ends: 3356 [2018-12-03 00:14:30,658 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1726 GetRequests, 1680 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=466, Invalid=1790, Unknown=0, NotChecked=0, Total=2256 [2018-12-03 00:14:30,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2018-12-03 00:14:30,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 3340. [2018-12-03 00:14:30,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3340 states. [2018-12-03 00:14:30,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3340 states to 3340 states and 3447 transitions. [2018-12-03 00:14:30,696 INFO L78 Accepts]: Start accepts. Automaton has 3340 states and 3447 transitions. Word has length 832 [2018-12-03 00:14:30,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:14:30,696 INFO L480 AbstractCegarLoop]: Abstraction has 3340 states and 3447 transitions. [2018-12-03 00:14:30,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-03 00:14:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3340 states and 3447 transitions. [2018-12-03 00:14:30,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2018-12-03 00:14:30,700 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:14:30,701 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 00:14:30,701 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:14:30,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:30,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1676542447, now seen corresponding path program 1 times [2018-12-03 00:14:30,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:14:30,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:30,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:30,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:30,701 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:14:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:30,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 660 proven. 224 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2018-12-03 00:14:30,983 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:30,983 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:14:30,983 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 853 with the following transitions: [2018-12-03 00:14:30,984 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [694], [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] [2018-12-03 00:14:30,985 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:14:30,985 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:14:34,834 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 00:14:34,834 INFO L272 AbstractInterpreter]: Visited 193 different actions 776 times. Merged at 10 different actions 37 times. Widened at 1 different actions 1 times. Performed 8535 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8535 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 12 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-03 00:14:34,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:34,836 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 00:14:34,837 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:34,837 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 00:14:34,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:34,843 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 00:14:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:34,934 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 00:14:35,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 1590 proven. 2 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2018-12-03 00:14:35,114 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 00:14:35,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 660 proven. 224 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2018-12-03 00:14:35,365 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 00:14:35,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2018-12-03 00:14:35,365 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 00:14:35,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 00:14:35,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 00:14:35,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-12-03 00:14:35,366 INFO L87 Difference]: Start difference. First operand 3340 states and 3447 transitions. Second operand 7 states. [2018-12-03 00:14:35,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:14:35,713 INFO L93 Difference]: Finished difference Result 5940 states and 6149 transitions. [2018-12-03 00:14:35,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 00:14:35,714 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 852 [2018-12-03 00:14:35,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:14:35,717 INFO L225 Difference]: With dead ends: 5940 [2018-12-03 00:14:35,717 INFO L226 Difference]: Without dead ends: 3712 [2018-12-03 00:14:35,719 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1714 GetRequests, 1703 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-12-03 00:14:35,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2018-12-03 00:14:35,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 3704. [2018-12-03 00:14:35,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3704 states. [2018-12-03 00:14:35,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 3825 transitions. [2018-12-03 00:14:35,747 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 3825 transitions. Word has length 852 [2018-12-03 00:14:35,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:14:35,747 INFO L480 AbstractCegarLoop]: Abstraction has 3704 states and 3825 transitions. [2018-12-03 00:14:35,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 00:14:35,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 3825 transitions. [2018-12-03 00:14:35,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 913 [2018-12-03 00:14:35,752 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:14:35,752 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-03 00:14:35,752 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:14:35,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:35,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1431515303, now seen corresponding path program 1 times [2018-12-03 00:14:35,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:14:35,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:35,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:35,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:35,753 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:14:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:36,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2424 backedges. 644 proven. 445 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2018-12-03 00:14:36,299 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:36,299 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:14:36,299 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 913 with the following transitions: [2018-12-03 00:14:36,299 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:14:36,301 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:14:36,301 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:14:40,127 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 00:14:40,127 INFO L272 AbstractInterpreter]: Visited 193 different actions 771 times. Merged at 9 different actions 32 times. Widened at 1 different actions 1 times. Performed 8491 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8491 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 12 fixpoints after 6 different actions. Largest state had 24 variables. [2018-12-03 00:14:40,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:40,129 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 00:14:40,129 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:40,129 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 00:14:40,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:40,135 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 00:14:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:40,226 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 00:14:40,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2424 backedges. 1017 proven. 2 refuted. 0 times theorem prover too weak. 1405 trivial. 0 not checked. [2018-12-03 00:14:40,523 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 00:14:41,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2424 backedges. 1017 proven. 2 refuted. 0 times theorem prover too weak. 1405 trivial. 0 not checked. [2018-12-03 00:14:41,209 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 00:14:41,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-12-03 00:14:41,210 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 00:14:41,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 00:14:41,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 00:14:41,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-12-03 00:14:41,210 INFO L87 Difference]: Start difference. First operand 3704 states and 3825 transitions. Second operand 10 states. [2018-12-03 00:14:42,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:14:42,368 INFO L93 Difference]: Finished difference Result 7404 states and 7649 transitions. [2018-12-03 00:14:42,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-03 00:14:42,368 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 912 [2018-12-03 00:14:42,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:14:42,371 INFO L225 Difference]: With dead ends: 7404 [2018-12-03 00:14:42,371 INFO L226 Difference]: Without dead ends: 2772 [2018-12-03 00:14:42,374 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1863 GetRequests, 1833 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=595, Unknown=0, NotChecked=0, Total=756 [2018-12-03 00:14:42,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states. [2018-12-03 00:14:42,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 2586. [2018-12-03 00:14:42,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2586 states. [2018-12-03 00:14:42,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2586 states to 2586 states and 2629 transitions. [2018-12-03 00:14:42,395 INFO L78 Accepts]: Start accepts. Automaton has 2586 states and 2629 transitions. Word has length 912 [2018-12-03 00:14:42,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:14:42,395 INFO L480 AbstractCegarLoop]: Abstraction has 2586 states and 2629 transitions. [2018-12-03 00:14:42,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 00:14:42,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2586 states and 2629 transitions. [2018-12-03 00:14:42,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1159 [2018-12-03 00:14:42,401 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:14:42,401 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 00:14:42,401 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:14:42,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:42,402 INFO L82 PathProgramCache]: Analyzing trace with hash -2043956975, now seen corresponding path program 1 times [2018-12-03 00:14:42,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:14:42,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:42,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:42,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:42,402 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:14:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:42,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4139 backedges. 1837 proven. 355 refuted. 0 times theorem prover too weak. 1947 trivial. 0 not checked. [2018-12-03 00:14:42,949 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:42,949 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:14:42,949 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1159 with the following transitions: [2018-12-03 00:14:42,949 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:14:42,951 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:14:42,951 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:14:46,827 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 00:14:46,827 INFO L272 AbstractInterpreter]: Visited 195 different actions 783 times. Merged at 11 different actions 36 times. Widened at 1 different actions 1 times. Performed 8668 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8668 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 7 different actions. Largest state had 24 variables. [2018-12-03 00:14:46,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:46,828 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 00:14:46,828 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:46,829 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 00:14:46,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:46,834 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 00:14:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:46,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 00:14:47,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4139 backedges. 2602 proven. 6 refuted. 0 times theorem prover too weak. 1531 trivial. 0 not checked. [2018-12-03 00:14:47,316 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 00:14:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 4139 backedges. 1837 proven. 359 refuted. 0 times theorem prover too weak. 1943 trivial. 0 not checked. [2018-12-03 00:14:47,926 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 00:14:47,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2018-12-03 00:14:47,926 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 00:14:47,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 00:14:47,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 00:14:47,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-12-03 00:14:47,927 INFO L87 Difference]: Start difference. First operand 2586 states and 2629 transitions. Second operand 9 states. [2018-12-03 00:14:48,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:14:48,530 INFO L93 Difference]: Finished difference Result 4090 states and 4176 transitions. [2018-12-03 00:14:48,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-03 00:14:48,530 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1158 [2018-12-03 00:14:48,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:14:48,534 INFO L225 Difference]: With dead ends: 4090 [2018-12-03 00:14:48,534 INFO L226 Difference]: Without dead ends: 2984 [2018-12-03 00:14:48,536 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2336 GetRequests, 2315 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2018-12-03 00:14:48,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2018-12-03 00:14:48,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 2770. [2018-12-03 00:14:48,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2770 states. [2018-12-03 00:14:48,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 2814 transitions. [2018-12-03 00:14:48,558 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 2814 transitions. Word has length 1158 [2018-12-03 00:14:48,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:14:48,558 INFO L480 AbstractCegarLoop]: Abstraction has 2770 states and 2814 transitions. [2018-12-03 00:14:48,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 00:14:48,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 2814 transitions. [2018-12-03 00:14:48,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1712 [2018-12-03 00:14:48,569 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 00:14:48,570 INFO L402 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-03 00:14:48,570 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 00:14:48,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:48,570 INFO L82 PathProgramCache]: Analyzing trace with hash -2024251614, now seen corresponding path program 1 times [2018-12-03 00:14:48,570 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 00:14:48,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:48,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:48,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 00:14:48,571 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 00:14:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:51,675 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 1999 proven. 5464 refuted. 0 times theorem prover too weak. 1635 trivial. 0 not checked. [2018-12-03 00:14:51,676 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:51,676 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 00:14:51,676 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1712 with the following transitions: [2018-12-03 00:14:51,676 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 00:14:51,678 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 00:14:51,678 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 00:14:55,564 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 00:14:55,564 INFO L272 AbstractInterpreter]: Visited 202 different actions 807 times. Merged at 12 different actions 32 times. Never widened. Performed 9014 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9014 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 20 fixpoints after 10 different actions. Largest state had 24 variables. [2018-12-03 00:14:55,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:14:55,566 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 00:14:55,566 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 00:14:55,566 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 00:14:55,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 00:14:55,572 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 00:14:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:14:55,752 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 00:14:56,716 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 3072 proven. 124 refuted. 0 times theorem prover too weak. 5902 trivial. 0 not checked. [2018-12-03 00:14:56,717 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 00:14:58,260 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 3112 proven. 197 refuted. 0 times theorem prover too weak. 5789 trivial. 0 not checked. [2018-12-03 00:14:58,276 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 00:14:58,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 9, 10] total 41 [2018-12-03 00:14:58,276 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 00:14:58,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-12-03 00:14:58,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-12-03 00:14:58,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1453, Unknown=0, NotChecked=0, Total=1640 [2018-12-03 00:14:58,277 INFO L87 Difference]: Start difference. First operand 2770 states and 2814 transitions. Second operand 34 states. [2018-12-03 00:15:00,906 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-12-03 00:15:01,076 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2018-12-03 00:15:02,041 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2018-12-03 00:15:08,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 00:15:08,048 INFO L93 Difference]: Finished difference Result 4302 states and 4411 transitions. [2018-12-03 00:15:08,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-12-03 00:15:08,048 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 1711 [2018-12-03 00:15:08,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 00:15:08,050 INFO L225 Difference]: With dead ends: 4302 [2018-12-03 00:15:08,050 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 00:15:08,057 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3548 GetRequests, 3437 SyntacticMatches, 3 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3174 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2240, Invalid=9750, Unknown=0, NotChecked=0, Total=11990 [2018-12-03 00:15:08,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 00:15:08,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 00:15:08,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 00:15:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 00:15:08,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1711 [2018-12-03 00:15:08,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 00:15:08,058 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 00:15:08,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-12-03 00:15:08,059 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 00:15:08,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 00:15:08,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 00:15:08,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,304 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,363 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,452 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,510 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,510 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,512 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,517 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,616 WARN L180 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 454 DAG size of output: 349 [2018-12-03 00:15:08,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,787 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 00:15:08,891 WARN L180 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 339 [2018-12-03 00:15:10,193 WARN L180 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 360 DAG size of output: 133 [2018-12-03 00:15:11,899 WARN L180 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 342 DAG size of output: 104 [2018-12-03 00:15:14,486 WARN L180 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 336 DAG size of output: 106 [2018-12-03 00:15:14,489 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 00:15:14,490 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a12~0 |old(~a12~0)|) (<= |old(~a12~0)| ~a12~0) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-12-03 00:15:14,490 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 00:15:14,490 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-12-03 00:15:14,490 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-12-03 00:15:14,490 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,491 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,491 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,491 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-12-03 00:15:14,491 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-03 00:15:14,491 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-03 00:15:14,491 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-03 00:15:14,491 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-12-03 00:15:14,491 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-12-03 00:15:14,492 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-12-03 00:15:14,492 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-12-03 00:15:14,492 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,492 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,492 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,492 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-12-03 00:15:14,492 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-12-03 00:15:14,492 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-03 00:15:14,493 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-03 00:15:14,493 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-03 00:15:14,493 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-12-03 00:15:14,493 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-12-03 00:15:14,493 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-12-03 00:15:14,493 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,493 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,493 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,494 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-12-03 00:15:14,494 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-03 00:15:14,494 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-03 00:15:14,494 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-03 00:15:14,494 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-12-03 00:15:14,494 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-12-03 00:15:14,494 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-12-03 00:15:14,495 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-12-03 00:15:14,495 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-12-03 00:15:14,495 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,495 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,495 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,495 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-12-03 00:15:14,495 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-03 00:15:14,495 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-03 00:15:14,496 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-03 00:15:14,496 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-12-03 00:15:14,496 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-12-03 00:15:14,496 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-12-03 00:15:14,496 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,496 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,496 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,496 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-12-03 00:15:14,497 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-03 00:15:14,497 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-03 00:15:14,497 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-03 00:15:14,497 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-12-03 00:15:14,497 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-12-03 00:15:14,497 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-12-03 00:15:14,497 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-12-03 00:15:14,497 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-12-03 00:15:14,498 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,498 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,498 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,498 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,498 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-12-03 00:15:14,498 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-03 00:15:14,498 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-03 00:15:14,498 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-03 00:15:14,499 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-12-03 00:15:14,499 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-12-03 00:15:14,499 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-12-03 00:15:14,499 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-12-03 00:15:14,499 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,499 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,499 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,499 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-03 00:15:14,500 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-03 00:15:14,500 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-03 00:15:14,500 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-12-03 00:15:14,500 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-12-03 00:15:14,500 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-12-03 00:15:14,500 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-12-03 00:15:14,500 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-12-03 00:15:14,500 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,501 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,501 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,501 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-12-03 00:15:14,501 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-12-03 00:15:14,501 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-03 00:15:14,501 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-03 00:15:14,501 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-03 00:15:14,501 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-12-03 00:15:14,502 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse18 (= ~a12~0 |old(~a12~0)|)) (.cse19 (= ~a15~0 |old(~a15~0)|)) (.cse2 (= 6 |old(~a21~0)|)) (.cse24 (< 7 |old(~a15~0)|)) (.cse3 (<= |old(~a12~0)| ~a12~0)) (.cse33 (= 1 ~a24~0)) (.cse11 (= 10 |old(~a21~0)|)) (.cse6 (< 80 |old(~a12~0)|)) (.cse22 (< |old(~a21~0)| 10)) (.cse8 (not (= 1 |old(~a24~0)|))) (.cse9 (not (= 8 |old(~a15~0)|))) (.cse0 (<= ~a12~0 |old(~a12~0)|)) (.cse15 (= ~a24~0 |old(~a24~0)|)) (.cse4 (= ~a21~0 |old(~a21~0)|)) (.cse1 (= |old(~a15~0)| ~a15~0)) (.cse7 (= 0 |old(~a21~0)|)) (.cse27 (< |old(~a12~0)| 81)) (.cse10 (= |calculate_output_#in~input| 0))) (let ((.cse17 (or .cse7 .cse27 (< 8 |old(~a21~0)|) .cse10)) (.cse5 (= ~a24~0 1)) (.cse23 (and .cse0 .cse15 .cse4 .cse1)) (.cse26 (and (or (or (not .cse11) .cse9) .cse8 .cse10) (or .cse6 .cse22 .cse8 .cse9 .cse10))) (.cse16 (< 11 |old(~a12~0)|)) (.cse28 (not (= 7 |old(~a21~0)|))) (.cse12 (not (= 5 |old(~a15~0)|))) (.cse14 (and .cse0 (= 5 ~a15~0))) (.cse21 (and .cse0 .cse3 .cse4 .cse33 (= 9 ~a15~0))) (.cse20 (not (= 9 |old(~a15~0)|))) (.cse25 (not (= 8 |old(~a21~0)|))) (.cse29 (< |old(~a21~0)| 9)) (.cse30 (<= |old(~a12~0)| 80)) (.cse31 (or .cse8 .cse24)) (.cse13 (not .cse2)) (.cse32 (and (and .cse18 .cse33 (<= ~a15~0 7)) .cse4 .cse19))) (and (or (not (= 6 |old(~a15~0)|)) (and .cse0 .cse1)) (or .cse2 (and .cse0 .cse3 .cse4 (= 8 ~a15~0) .cse5) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (or .cse12 .cse13 (and .cse3 .cse14 .cse15 .cse4) .cse16) (or .cse17 .cse13 (and (and .cse18 .cse5) .cse4 .cse19) .cse8 .cse9) (or .cse13 .cse20 .cse21 .cse8 (< 95434 |old(~a12~0)|) (<= |old(~a12~0)| 95380)) (or .cse20 .cse22 .cse21 .cse8 .cse16) (or .cse8 .cse23 .cse24 .cse25) (or .cse6 .cse8 .cse23 .cse24) (or .cse17 .cse8 .cse9 (< 73282 |old(~a12~0)|) (and .cse18 .cse4 .cse1 .cse5)) (or .cse26 .cse27 (and .cse18 (and .cse5 .cse1) .cse4)) (or .cse20 .cse28 .cse27 .cse8 .cse21) (or .cse21 .cse20 .cse8 .cse16 .cse25) (or .cse22 .cse8 .cse24 .cse23) (or (or .cse20 .cse8) (< 72 |old(~a12~0)|) .cse21 (<= |old(~a12~0)| 18) .cse25) (or .cse29 .cse20 .cse21 .cse8 .cse30) (or .cse26 (and .cse3 .cse4 (and .cse0 .cse15 .cse1)) .cse16) (or .cse31 .cse18 (< 0 (+ |old(~a12~0)| 460233)) .cse28) (or .cse12 (and .cse14 .cse15 .cse4) .cse8) (or .cse21 .cse20 .cse27 .cse8 .cse25) (or .cse31 .cse29 .cse30 .cse32 .cse11) (or .cse31 .cse13 .cse32)))) [2018-12-03 00:15:14,502 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-12-03 00:15:14,503 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-12-03 00:15:14,503 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,503 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,503 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,503 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-03 00:15:14,503 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-03 00:15:14,503 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-03 00:15:14,503 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-12-03 00:15:14,504 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-12-03 00:15:14,504 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-12-03 00:15:14,504 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-12-03 00:15:14,504 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-12-03 00:15:14,504 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,504 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,504 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,504 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-12-03 00:15:14,504 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-12-03 00:15:14,504 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-03 00:15:14,505 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-03 00:15:14,505 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-03 00:15:14,505 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-12-03 00:15:14,505 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-12-03 00:15:14,505 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-12-03 00:15:14,505 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,505 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,505 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,505 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-12-03 00:15:14,505 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-03 00:15:14,506 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-03 00:15:14,506 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-03 00:15:14,506 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-12-03 00:15:14,506 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-12-03 00:15:14,506 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-12-03 00:15:14,506 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-12-03 00:15:14,506 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,506 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,506 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,506 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-12-03 00:15:14,507 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-03 00:15:14,507 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-03 00:15:14,507 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-03 00:15:14,507 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-12-03 00:15:14,507 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-12-03 00:15:14,507 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-12-03 00:15:14,507 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-12-03 00:15:14,507 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,507 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,507 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-12-03 00:15:14,507 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-03 00:15:14,508 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-03 00:15:14,508 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-12-03 00:15:14,508 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-12-03 00:15:14,508 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-12-03 00:15:14,508 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-12-03 00:15:14,508 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-12-03 00:15:14,508 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,508 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,508 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-12-03 00:15:14,508 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-03 00:15:14,509 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-03 00:15:14,509 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-12-03 00:15:14,509 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-12-03 00:15:14,509 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-12-03 00:15:14,509 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,509 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,509 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-12-03 00:15:14,509 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2018-12-03 00:15:14,509 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-12-03 00:15:14,509 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-03 00:15:14,509 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-03 00:15:14,510 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-12-03 00:15:14,510 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-12-03 00:15:14,510 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-12-03 00:15:14,510 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-12-03 00:15:14,510 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,510 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,510 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-12-03 00:15:14,510 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-12-03 00:15:14,510 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-03 00:15:14,510 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-03 00:15:14,510 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-12-03 00:15:14,510 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-12-03 00:15:14,510 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-12-03 00:15:14,511 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,511 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,511 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,511 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-12-03 00:15:14,511 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-12-03 00:15:14,511 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-03 00:15:14,511 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-03 00:15:14,511 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-12-03 00:15:14,511 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-12-03 00:15:14,511 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,511 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,511 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-03 00:15:14,512 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,512 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-12-03 00:15:14,512 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-12-03 00:15:14,512 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-12-03 00:15:14,512 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-03 00:15:14,512 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-03 00:15:14,512 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-03 00:15:14,512 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-12-03 00:15:14,512 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-12-03 00:15:14,512 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-12-03 00:15:14,512 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-12-03 00:15:14,512 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,513 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,513 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,513 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-12-03 00:15:14,513 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-03 00:15:14,513 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-03 00:15:14,513 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-03 00:15:14,513 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-12-03 00:15:14,513 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-12-03 00:15:14,513 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-12-03 00:15:14,513 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-12-03 00:15:14,513 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,513 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,513 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-12-03 00:15:14,514 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-12-03 00:15:14,515 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-12-03 00:15:14,515 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-12-03 00:15:14,515 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,515 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,515 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 00:15:14,515 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-12-03 00:15:14,515 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-03 00:15:14,515 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-03 00:15:14,515 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-03 00:15:14,515 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-12-03 00:15:14,515 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 00:15:14,515 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-12-03 00:15:14,515 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 00:15:14,515 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 00:15:14,515 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (= 7 ~a21~0) (<= |old(~a12~0)| ~a12~0) (<= (+ ~a12~0 49) 0) (= |old(~a15~0)| ~a15~0) (= ~a24~0 1))) [2018-12-03 00:15:14,515 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-12-03 00:15:14,516 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse16 (<= ~a12~0 80)) (.cse21 (not (= ~a21~0 0))) (.cse18 (not (= main_~input~0 0))) (.cse19 (= ~a15~0 8)) (.cse20 (= ~a24~0 1))) (let ((.cse15 (and .cse16 .cse21 .cse18 .cse19 .cse20)) (.cse13 (<= 10 ~a21~0)) (.cse6 (= ~a24~0 |old(~a24~0)|)) (.cse0 (<= 81 ~a12~0)) (.cse17 (<= ~a15~0 |old(~a15~0)|)) (.cse1 (= 1 ~a24~0)) (.cse14 (<= ~a15~0 7))) (let ((.cse5 (= 5 ~a15~0)) (.cse9 (= ~a21~0 6)) (.cse11 (and .cse1 .cse14 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|))))) (.cse2 (= ~a21~0 8)) (.cse4 (= 6 ~a21~0)) (.cse12 (and .cse0 (<= ~a21~0 8) (<= |old(~a12~0)| 11) (and .cse21 .cse18) .cse17)) (.cse10 (<= 9 ~a21~0)) (.cse3 (= 9 ~a15~0)) (.cse7 (or (and .cse15 .cse13 .cse17 .cse6) (and .cse17 .cse6 (and .cse18 (and .cse19 (= ~a21~0 10)) .cse20)))) (.cse8 (<= ~a12~0 11))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= 8 |old(~a15~0)|)) (and .cse4 (<= ~a12~0 95434) .cse1 .cse3 (< 95380 ~a12~0)) (and .cse5 .cse6) (and .cse0 .cse7) (not (= 7 |old(~a21~0)|)) (and .cse8 (and .cse9 .cse5)) (and .cse10 .cse11) (not (= 0 (+ |old(~a12~0)| 49))) (and (<= ~a12~0 73282) .cse12 .cse1 (= 8 ~a15~0)) (and .cse13 .cse1 .cse8 .cse3) (and .cse2 .cse1 .cse8 .cse3) (and .cse1 .cse14 .cse2) (and .cse9 .cse11) (and (< 18 ~a12~0) .cse6 (<= ~a12~0 72) (and .cse2 .cse3)) (and (not (= 10 ~a21~0)) .cse15 (not .cse4)) (and .cse4 .cse12 .cse6) (= 6 ~a15~0) (and .cse16 .cse1 .cse14) (and (= 7 ~a21~0) (and .cse0 .cse1 .cse3)) (and .cse10 .cse1 (< 80 ~a12~0) .cse3) (not (= 1 |old(~a24~0)|)) (and .cse7 .cse8))))) [2018-12-03 00:15:14,516 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-12-03 00:15:14,516 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-12-03 00:15:14,516 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse16 (<= ~a12~0 80)) (.cse17 (not (= ~a21~0 0))) (.cse20 (= ~a15~0 8))) (let ((.cse0 (<= 81 ~a12~0)) (.cse18 (= ~a24~0 1)) (.cse13 (and .cse16 .cse17 .cse20)) (.cse12 (<= 10 ~a21~0)) (.cse6 (= ~a24~0 |old(~a24~0)|)) (.cse1 (= 1 ~a24~0)) (.cse15 (<= ~a15~0 7))) (let ((.cse5 (= 5 ~a15~0)) (.cse8 (<= ~a12~0 11)) (.cse9 (= ~a21~0 6)) (.cse11 (and .cse1 .cse15 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|))))) (.cse14 (let ((.cse19 (<= ~a15~0 |old(~a15~0)|))) (or (and .cse19 (and .cse20 .cse18 (= ~a21~0 10))) (and .cse13 .cse12 .cse19 .cse6)))) (.cse2 (= ~a21~0 8)) (.cse10 (<= 9 ~a21~0)) (.cse3 (= 9 ~a15~0)) (.cse4 (= 6 ~a21~0)) (.cse7 (and .cse0 (<= ~a21~0 8) (<= |old(~a12~0)| 11) .cse6 (and .cse17 .cse18)))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= 8 |old(~a15~0)|)) (and .cse4 (<= ~a12~0 95434) .cse1 .cse3 (< 95380 ~a12~0)) (and .cse5 .cse6) (and (<= ~a12~0 73282) .cse7 (= 8 ~a15~0)) (not (= 7 |old(~a21~0)|)) (and .cse8 (and .cse9 .cse5)) (and .cse10 .cse11) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse12 .cse1 .cse8 .cse3) (and (not (= 10 ~a21~0)) (and .cse13 .cse6) (not .cse4)) (and .cse2 .cse1 .cse8 .cse3) (and .cse14 .cse8) (and .cse1 .cse15 .cse2) (and .cse9 .cse11) (and .cse0 .cse14) (and (< 18 ~a12~0) .cse6 (<= ~a12~0 72) (and .cse2 .cse3)) (= 6 ~a15~0) (and .cse16 .cse1 .cse15) (and (= 7 ~a21~0) (and .cse0 .cse1 .cse3)) (and .cse10 .cse1 (< 80 ~a12~0) .cse3) (not (= 1 |old(~a24~0)|)) (and .cse4 .cse7 (= ~a15~0 |old(~a15~0)|)))))) [2018-12-03 00:15:14,516 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-12-03 00:15:14,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:15:14 BoogieIcfgContainer [2018-12-03 00:15:14,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 00:15:14,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 00:15:14,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 00:15:14,525 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 00:15:14,526 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:12:08" (3/4) ... [2018-12-03 00:15:14,528 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 00:15:14,531 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 00:15:14,532 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-03 00:15:14,532 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 00:15:14,542 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-03 00:15:14,543 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-03 00:15:14,568 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((81 <= a12 && 1 == a24) && a21 == 8) && 9 == a15) || !(8 == \old(a15))) || ((((6 == a21 && a12 <= 95434) && 1 == a24) && 9 == a15) && 95380 < a12)) || (5 == a15 && a24 == \old(a24))) || ((a12 <= 73282 && (((81 <= a12 && a21 <= 8) && \old(a12) <= 11) && a24 == \old(a24)) && !(a21 == 0) && a24 == 1) && 8 == a15)) || !(7 == \old(a21))) || (a12 <= 11 && a21 == 6 && 5 == a15)) || (9 <= a21 && (1 == a24 && a15 <= 7) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || !(0 == \old(a12) + 49)) || (((10 <= a21 && 1 == a24) && a12 <= 11) && 9 == a15)) || ((!(10 == a21) && ((a12 <= 80 && !(a21 == 0)) && a15 == 8) && a24 == \old(a24)) && !(6 == a21))) || (((a21 == 8 && 1 == a24) && a12 <= 11) && 9 == a15)) || (((a15 <= \old(a15) && (a15 == 8 && a24 == 1) && a21 == 10) || (((((a12 <= 80 && !(a21 == 0)) && a15 == 8) && 10 <= a21) && a15 <= \old(a15)) && a24 == \old(a24))) && a12 <= 11)) || ((1 == a24 && a15 <= 7) && a21 == 8)) || (a21 == 6 && (1 == a24 && a15 <= 7) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || (81 <= a12 && ((a15 <= \old(a15) && (a15 == 8 && a24 == 1) && a21 == 10) || (((((a12 <= 80 && !(a21 == 0)) && a15 == 8) && 10 <= a21) && a15 <= \old(a15)) && a24 == \old(a24))))) || (((18 < a12 && a24 == \old(a24)) && a12 <= 72) && a21 == 8 && 9 == a15)) || 6 == a15) || ((a12 <= 80 && 1 == a24) && a15 <= 7)) || (7 == a21 && (81 <= a12 && 1 == a24) && 9 == a15)) || (((9 <= a21 && 1 == a24) && 80 < a12) && 9 == a15)) || !(1 == \old(a24))) || ((6 == a21 && (((81 <= a12 && a21 <= 8) && \old(a12) <= 11) && a24 == \old(a24)) && !(a21 == 0) && a24 == 1) && a15 == \old(a15)) [2018-12-03 00:15:14,625 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_288abcaa-4230-4618-9f35-80bd3e061b71/bin-2019/utaipan/witness.graphml [2018-12-03 00:15:14,625 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 00:15:14,625 INFO L168 Benchmark]: Toolchain (without parser) took 187533.01 ms. Allocated memory was 1.0 GB in the beginning and 4.2 GB in the end (delta: 3.1 GB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -229.8 MB). Peak memory consumption was 2.9 GB. Max. memory is 11.5 GB. [2018-12-03 00:15:14,626 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 00:15:14,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 62.2 MB. Max. memory is 11.5 GB. [2018-12-03 00:15:14,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.22 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-03 00:15:14,626 INFO L168 Benchmark]: Boogie Preprocessor took 41.67 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-03 00:15:14,627 INFO L168 Benchmark]: RCFGBuilder took 738.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.5 MB in the end (delta: 124.3 MB). Peak memory consumption was 124.3 MB. Max. memory is 11.5 GB. [2018-12-03 00:15:14,627 INFO L168 Benchmark]: TraceAbstraction took 186266.63 ms. Allocated memory was 1.2 GB in the beginning and 4.2 GB in the end (delta: 3.0 GB). Free memory was 991.5 MB in the beginning and 1.2 GB in the end (delta: -185.3 MB). Peak memory consumption was 2.8 GB. Max. memory is 11.5 GB. [2018-12-03 00:15:14,627 INFO L168 Benchmark]: Witness Printer took 99.51 ms. Allocated memory is still 4.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.2 kB). Peak memory consumption was 4.2 kB. Max. memory is 11.5 GB. [2018-12-03 00:15:14,628 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 361.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 62.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.22 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.67 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 738.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.5 MB in the end (delta: 124.3 MB). Peak memory consumption was 124.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 186266.63 ms. Allocated memory was 1.2 GB in the beginning and 4.2 GB in the end (delta: 3.0 GB). Free memory was 991.5 MB in the beginning and 1.2 GB in the end (delta: -185.3 MB). Peak memory consumption was 2.8 GB. Max. memory is 11.5 GB. * Witness Printer took 99.51 ms. Allocated memory is still 4.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.2 kB). Peak memory consumption was 4.2 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: 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: ((((((((((((((((((((((((81 <= a12 && 1 == a24) && a21 == 8) && 9 == a15) || !(8 == \old(a15))) || ((((6 == a21 && a12 <= 95434) && 1 == a24) && 9 == a15) && 95380 < a12)) || (5 == a15 && a24 == \old(a24))) || ((a12 <= 73282 && (((81 <= a12 && a21 <= 8) && \old(a12) <= 11) && a24 == \old(a24)) && !(a21 == 0) && a24 == 1) && 8 == a15)) || !(7 == \old(a21))) || (a12 <= 11 && a21 == 6 && 5 == a15)) || (9 <= a21 && (1 == a24 && a15 <= 7) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || !(0 == \old(a12) + 49)) || (((10 <= a21 && 1 == a24) && a12 <= 11) && 9 == a15)) || ((!(10 == a21) && ((a12 <= 80 && !(a21 == 0)) && a15 == 8) && a24 == \old(a24)) && !(6 == a21))) || (((a21 == 8 && 1 == a24) && a12 <= 11) && 9 == a15)) || (((a15 <= \old(a15) && (a15 == 8 && a24 == 1) && a21 == 10) || (((((a12 <= 80 && !(a21 == 0)) && a15 == 8) && 10 <= a21) && a15 <= \old(a15)) && a24 == \old(a24))) && a12 <= 11)) || ((1 == a24 && a15 <= 7) && a21 == 8)) || (a21 == 6 && (1 == a24 && a15 <= 7) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || (81 <= a12 && ((a15 <= \old(a15) && (a15 == 8 && a24 == 1) && a21 == 10) || (((((a12 <= 80 && !(a21 == 0)) && a15 == 8) && 10 <= a21) && a15 <= \old(a15)) && a24 == \old(a24))))) || (((18 < a12 && a24 == \old(a24)) && a12 <= 72) && a21 == 8 && 9 == a15)) || 6 == a15) || ((a12 <= 80 && 1 == a24) && a15 <= 7)) || (7 == a21 && (81 <= a12 && 1 == a24) && 9 == a15)) || (((9 <= a21 && 1 == a24) && 80 < a12) && 9 == a15)) || !(1 == \old(a24))) || ((6 == a21 && (((81 <= a12 && a21 <= 8) && \old(a12) <= 11) && a24 == \old(a24)) && !(a21 == 0) && a24 == 1) && a15 == \old(a15)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 186.2s OverallTime, 17 OverallIterations, 14 TraceHistogramMax, 108.1s AutomataDifference, 0.0s DeadEndRemovalTime, 6.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 1208 SDtfs, 31672 SDslu, 1997 SDs, 0 SdLazy, 38641 SolverSat, 5119 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.9s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 20223 GetRequests, 19775 SyntacticMatches, 20 SemanticMatches, 428 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5680 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6090occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 51.5s AbstIntTime, 15 AbstIntIterations, 4 AbstIntStrong, 0.9973783193390653 AbsIntWeakeningRatio, 0.08846990572878898 AbsIntAvgWeakeningVarsNumRemoved, 16.210297316896302 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 3425 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 442 PreInvPairs, 616 NumberOfFragments, 1542 HoareAnnotationTreeSize, 442 FomulaSimplifications, 160805 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 54965 FormulaSimplificationTreeSizeReductionInter, 5.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 19951 NumberOfCodeBlocks, 19951 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 29077 ConstructedInterpolants, 0 QuantifiedInterpolants, 90245326 SizeOfPredicates, 21 NumberOfNonLiveVariables, 13085 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 39 InterpolantComputations, 4 PerfectInterpolantSequences, 74336/84196 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...