./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f9a2fcb1012f2ff72c6593976c4936a90359f50 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 12:35:28,259 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:35:28,260 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:35:28,268 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:35:28,268 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:35:28,269 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:35:28,270 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:35:28,271 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:35:28,272 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:35:28,273 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:35:28,273 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:35:28,274 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:35:28,274 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:35:28,275 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:35:28,276 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:35:28,276 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:35:28,277 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:35:28,278 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:35:28,279 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:35:28,281 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:35:28,281 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:35:28,282 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:35:28,284 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:35:28,284 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:35:28,284 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:35:28,285 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:35:28,285 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:35:28,286 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:35:28,286 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:35:28,287 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:35:28,287 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:35:28,288 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:35:28,288 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:35:28,288 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:35:28,289 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:35:28,289 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:35:28,290 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 12:35:28,299 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:35:28,299 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:35:28,300 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:35:28,300 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:35:28,300 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 12:35:28,300 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 12:35:28,301 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 12:35:28,301 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 12:35:28,301 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 12:35:28,301 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 12:35:28,301 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 12:35:28,301 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 12:35:28,301 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 12:35:28,302 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:35:28,302 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:35:28,302 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:35:28,302 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:35:28,303 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:35:28,303 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:35:28,303 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:35:28,303 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:35:28,303 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:35:28,303 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:35:28,303 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:35:28,304 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:35:28,304 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:35:28,304 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:35:28,304 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:35:28,304 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:35:28,304 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:35:28,305 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:35:28,305 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:35:28,305 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:35:28,305 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 12:35:28,305 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:35:28,305 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:35:28,305 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 12:35:28,305 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_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f9a2fcb1012f2ff72c6593976c4936a90359f50 [2018-11-23 12:35:28,327 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:35:28,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:35:28,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:35:28,339 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:35:28,339 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:35:28,339 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c [2018-11-23 12:35:28,376 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/data/d0c4718ae/757fbc7632ac473e8fe39d9a3de5a15d/FLAG4aacb3f6f [2018-11-23 12:35:28,750 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:35:28,751 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c [2018-11-23 12:35:28,761 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/data/d0c4718ae/757fbc7632ac473e8fe39d9a3de5a15d/FLAG4aacb3f6f [2018-11-23 12:35:28,771 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/data/d0c4718ae/757fbc7632ac473e8fe39d9a3de5a15d [2018-11-23 12:35:28,773 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:35:28,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:35:28,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:35:28,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:35:28,777 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:35:28,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:35:28" (1/1) ... [2018-11-23 12:35:28,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342d28a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:28, skipping insertion in model container [2018-11-23 12:35:28,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:35:28" (1/1) ... [2018-11-23 12:35:28,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:35:28,823 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:35:29,083 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:35:29,087 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:35:29,175 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:35:29,188 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:35:29,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:29 WrapperNode [2018-11-23 12:35:29,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:35:29,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:35:29,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:35:29,189 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:35:29,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:29" (1/1) ... [2018-11-23 12:35:29,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:29" (1/1) ... [2018-11-23 12:35:29,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:35:29,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:35:29,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:35:29,300 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:35:29,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:29" (1/1) ... [2018-11-23 12:35:29,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:29" (1/1) ... [2018-11-23 12:35:29,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:29" (1/1) ... [2018-11-23 12:35:29,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:29" (1/1) ... [2018-11-23 12:35:29,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:29" (1/1) ... [2018-11-23 12:35:29,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:29" (1/1) ... [2018-11-23 12:35:29,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:29" (1/1) ... [2018-11-23 12:35:29,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:35:29,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:35:29,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:35:29,353 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:35:29,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:35:29,387 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 12:35:29,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:35:29,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:35:29,388 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 12:35:29,388 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 12:35:29,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:35:29,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:35:29,388 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:35:29,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:35:30,460 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:35:30,461 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 12:35:30,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:35:30 BoogieIcfgContainer [2018-11-23 12:35:30,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:35:30,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:35:30,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:35:30,465 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:35:30,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:35:28" (1/3) ... [2018-11-23 12:35:30,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46579931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:35:30, skipping insertion in model container [2018-11-23 12:35:30,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:29" (2/3) ... [2018-11-23 12:35:30,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46579931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:35:30, skipping insertion in model container [2018-11-23 12:35:30,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:35:30" (3/3) ... [2018-11-23 12:35:30,471 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label07_true-unreach-call_false-termination.c [2018-11-23 12:35:30,482 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:35:30,489 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:35:30,506 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:35:30,540 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:35:30,541 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:35:30,541 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:35:30,541 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:35:30,541 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:35:30,541 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:35:30,541 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:35:30,541 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:35:30,562 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-11-23 12:35:30,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-23 12:35:30,569 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:35:30,570 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:35:30,571 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:35:30,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:35:30,576 INFO L82 PathProgramCache]: Analyzing trace with hash 844393866, now seen corresponding path program 1 times [2018-11-23 12:35:30,578 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:35:30,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:35:30,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:35:30,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:35:30,620 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:35:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:35:30,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:35:30,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:35:30,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 12:35:30,823 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:35:30,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 12:35:30,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 12:35:30,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 12:35:30,838 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2018-11-23 12:35:31,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:35:31,872 INFO L93 Difference]: Finished difference Result 890 states and 1606 transitions. [2018-11-23 12:35:31,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 12:35:31,873 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2018-11-23 12:35:31,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:35:31,883 INFO L225 Difference]: With dead ends: 890 [2018-11-23 12:35:31,883 INFO L226 Difference]: Without dead ends: 630 [2018-11-23 12:35:31,887 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 [2018-11-23 12:35:31,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2018-11-23 12:35:31,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 432. [2018-11-23 12:35:31,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2018-11-23 12:35:31,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 660 transitions. [2018-11-23 12:35:31,938 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 660 transitions. Word has length 53 [2018-11-23 12:35:31,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:35:31,938 INFO L480 AbstractCegarLoop]: Abstraction has 432 states and 660 transitions. [2018-11-23 12:35:31,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 12:35:31,939 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 660 transitions. [2018-11-23 12:35:31,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-23 12:35:31,944 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:35:31,944 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:35:31,944 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:35:31,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:35:31,945 INFO L82 PathProgramCache]: Analyzing trace with hash -678591331, now seen corresponding path program 1 times [2018-11-23 12:35:31,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:35:31,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:35:31,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:35:31,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:35:31,947 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:35:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:35:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:35:32,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:35:32,066 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 12:35:32,067 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:35:32,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 12:35:32,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 12:35:32,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 12:35:32,069 INFO L87 Difference]: Start difference. First operand 432 states and 660 transitions. Second operand 4 states. [2018-11-23 12:35:32,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:35:32,865 INFO L93 Difference]: Finished difference Result 1586 states and 2525 transitions. [2018-11-23 12:35:32,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 12:35:32,865 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 136 [2018-11-23 12:35:32,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:35:32,871 INFO L225 Difference]: With dead ends: 1586 [2018-11-23 12:35:32,871 INFO L226 Difference]: Without dead ends: 776 [2018-11-23 12:35:32,876 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 [2018-11-23 12:35:32,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2018-11-23 12:35:32,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 776. [2018-11-23 12:35:32,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 776 states. [2018-11-23 12:35:32,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1148 transitions. [2018-11-23 12:35:32,904 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1148 transitions. Word has length 136 [2018-11-23 12:35:32,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:35:32,905 INFO L480 AbstractCegarLoop]: Abstraction has 776 states and 1148 transitions. [2018-11-23 12:35:32,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 12:35:32,905 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1148 transitions. [2018-11-23 12:35:32,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-11-23 12:35:32,910 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:35:32,910 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:35:32,911 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:35:32,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:35:32,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1936926174, now seen corresponding path program 1 times [2018-11-23 12:35:32,911 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:35:32,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:35:32,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:35:32,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:35:32,912 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:35:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:35:33,049 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-23 12:35:33,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:35:33,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 12:35:33,050 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:35:33,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 12:35:33,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 12:35:33,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 12:35:33,051 INFO L87 Difference]: Start difference. First operand 776 states and 1148 transitions. Second operand 4 states. [2018-11-23 12:35:33,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:35:33,788 INFO L93 Difference]: Finished difference Result 3002 states and 4594 transitions. [2018-11-23 12:35:33,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 12:35:33,788 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 221 [2018-11-23 12:35:33,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:35:33,797 INFO L225 Difference]: With dead ends: 3002 [2018-11-23 12:35:33,797 INFO L226 Difference]: Without dead ends: 2232 [2018-11-23 12:35:33,802 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 [2018-11-23 12:35:33,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2018-11-23 12:35:33,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2232. [2018-11-23 12:35:33,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2232 states. [2018-11-23 12:35:33,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 3137 transitions. [2018-11-23 12:35:33,846 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 3137 transitions. Word has length 221 [2018-11-23 12:35:33,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:35:33,847 INFO L480 AbstractCegarLoop]: Abstraction has 2232 states and 3137 transitions. [2018-11-23 12:35:33,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 12:35:33,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 3137 transitions. [2018-11-23 12:35:33,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-11-23 12:35:33,855 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:35:33,856 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:35:33,856 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:35:33,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:35:33,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1963321077, now seen corresponding path program 1 times [2018-11-23 12:35:33,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:35:33,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:35:33,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:35:33,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:35:33,857 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:35:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:35:34,134 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 92 proven. 108 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 12:35:34,135 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:35:34,135 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:35:34,136 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 317 with the following transitions: [2018-11-23 12:35:34,137 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:35:34,174 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:35:34,175 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:35:36,427 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 12:35:36,428 INFO L272 AbstractInterpreter]: Visited 156 different actions 156 times. Never merged. Never widened. Performed 1514 root evaluator evaluations with a maximum evaluation depth of 22. Performed 1514 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Never found a fixpoint. Largest state had 24 variables. [2018-11-23 12:35:36,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:35:36,446 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 12:35:38,209 INFO L227 lantSequenceWeakener]: Weakened 307 states. On average, predicates are now at 77.8% of their original sizes. [2018-11-23 12:35:38,209 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 12:35:38,246 INFO L415 sIntCurrentIteration]: We unified 315 AI predicates to 315 [2018-11-23 12:35:38,246 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 12:35:38,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 12:35:38,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-11-23 12:35:38,247 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:35:38,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 12:35:38,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 12:35:38,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 12:35:38,248 INFO L87 Difference]: Start difference. First operand 2232 states and 3137 transitions. Second operand 6 states. [2018-11-23 12:35:49,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:35:49,173 INFO L93 Difference]: Finished difference Result 4641 states and 6500 transitions. [2018-11-23 12:35:49,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 12:35:49,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 316 [2018-11-23 12:35:49,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:35:49,185 INFO L225 Difference]: With dead ends: 4641 [2018-11-23 12:35:49,185 INFO L226 Difference]: Without dead ends: 2415 [2018-11-23 12:35:49,194 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 316 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 12:35:49,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2018-11-23 12:35:49,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2414. [2018-11-23 12:35:49,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2414 states. [2018-11-23 12:35:49,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 3327 transitions. [2018-11-23 12:35:49,249 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 3327 transitions. Word has length 316 [2018-11-23 12:35:49,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:35:49,250 INFO L480 AbstractCegarLoop]: Abstraction has 2414 states and 3327 transitions. [2018-11-23 12:35:49,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 12:35:49,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 3327 transitions. [2018-11-23 12:35:49,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-11-23 12:35:49,263 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:35:49,264 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:35:49,264 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:35:49,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:35:49,264 INFO L82 PathProgramCache]: Analyzing trace with hash -496552707, now seen corresponding path program 1 times [2018-11-23 12:35:49,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:35:49,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:35:49,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:35:49,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:35:49,266 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:35:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:35:49,812 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 224 proven. 190 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 12:35:49,812 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:35:49,813 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:35:49,813 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 401 with the following transitions: [2018-11-23 12:35:49,813 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:35:49,817 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:35:49,817 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:35:52,742 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 12:35:52,743 INFO L272 AbstractInterpreter]: Visited 160 different actions 313 times. Merged at 3 different actions 3 times. Never widened. Performed 3148 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3148 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 12:35:52,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:35:52,746 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 12:35:54,363 INFO L227 lantSequenceWeakener]: Weakened 397 states. On average, predicates are now at 77.72% of their original sizes. [2018-11-23 12:35:54,363 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 12:35:54,428 INFO L415 sIntCurrentIteration]: We unified 399 AI predicates to 399 [2018-11-23 12:35:54,428 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 12:35:54,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 12:35:54,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-11-23 12:35:54,428 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:35:54,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 12:35:54,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 12:35:54,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 12:35:54,429 INFO L87 Difference]: Start difference. First operand 2414 states and 3327 transitions. Second operand 10 states. [2018-11-23 12:36:30,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:36:30,950 INFO L93 Difference]: Finished difference Result 5378 states and 7323 transitions. [2018-11-23 12:36:30,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 12:36:30,950 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 400 [2018-11-23 12:36:30,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:36:30,961 INFO L225 Difference]: With dead ends: 5378 [2018-11-23 12:36:30,961 INFO L226 Difference]: Without dead ends: 2784 [2018-11-23 12:36:30,973 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 408 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-23 12:36:30,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2018-11-23 12:36:31,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2783. [2018-11-23 12:36:31,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2783 states. [2018-11-23 12:36:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 3729 transitions. [2018-11-23 12:36:31,028 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 3729 transitions. Word has length 400 [2018-11-23 12:36:31,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:36:31,028 INFO L480 AbstractCegarLoop]: Abstraction has 2783 states and 3729 transitions. [2018-11-23 12:36:31,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 12:36:31,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 3729 transitions. [2018-11-23 12:36:31,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2018-11-23 12:36:31,046 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:36:31,047 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:36:31,047 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:36:31,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:36:31,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1415948862, now seen corresponding path program 1 times [2018-11-23 12:36:31,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:36:31,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:36:31,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:36:31,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:36:31,050 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:36:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:36:31,679 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 377 proven. 250 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-23 12:36:31,680 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:36:31,680 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:36:31,680 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 500 with the following transitions: [2018-11-23 12:36:31,680 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:36:31,685 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:36:31,685 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:36:34,512 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 12:36:34,512 INFO L272 AbstractInterpreter]: Visited 161 different actions 316 times. Merged at 4 different actions 4 times. Never widened. Performed 3130 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3130 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 12:36:34,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:36:34,518 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 12:36:36,038 INFO L227 lantSequenceWeakener]: Weakened 496 states. On average, predicates are now at 77.65% of their original sizes. [2018-11-23 12:36:36,038 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 12:36:36,079 INFO L415 sIntCurrentIteration]: We unified 498 AI predicates to 498 [2018-11-23 12:36:36,079 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 12:36:36,079 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 12:36:36,079 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-11-23 12:36:36,079 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:36:36,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 12:36:36,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 12:36:36,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 12:36:36,080 INFO L87 Difference]: Start difference. First operand 2783 states and 3729 transitions. Second operand 10 states. [2018-11-23 12:36:51,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:36:51,099 INFO L93 Difference]: Finished difference Result 5195 states and 7071 transitions. [2018-11-23 12:36:51,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 12:36:51,100 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 499 [2018-11-23 12:36:51,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:36:51,108 INFO L225 Difference]: With dead ends: 5195 [2018-11-23 12:36:51,108 INFO L226 Difference]: Without dead ends: 2600 [2018-11-23 12:36:51,116 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 506 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-23 12:36:51,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2018-11-23 12:36:51,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 2598. [2018-11-23 12:36:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2598 states. [2018-11-23 12:36:51,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 3508 transitions. [2018-11-23 12:36:51,167 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 3508 transitions. Word has length 499 [2018-11-23 12:36:51,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:36:51,168 INFO L480 AbstractCegarLoop]: Abstraction has 2598 states and 3508 transitions. [2018-11-23 12:36:51,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 12:36:51,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 3508 transitions. [2018-11-23 12:36:51,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2018-11-23 12:36:51,185 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:36:51,185 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:36:51,186 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:36:51,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:36:51,186 INFO L82 PathProgramCache]: Analyzing trace with hash -602196651, now seen corresponding path program 1 times [2018-11-23 12:36:51,186 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:36:51,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:36:51,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:36:51,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:36:51,187 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:36:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:36:51,565 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 328 proven. 285 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-11-23 12:36:51,565 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:36:51,565 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:36:51,565 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 503 with the following transitions: [2018-11-23 12:36:51,566 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:36:51,570 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:36:51,570 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:36:55,129 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 12:36:55,129 INFO L272 AbstractInterpreter]: Visited 161 different actions 480 times. Merged at 6 different actions 17 times. Never widened. Performed 4946 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4946 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 12:36:55,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:36:55,130 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 12:36:55,782 INFO L227 lantSequenceWeakener]: Weakened 499 states. On average, predicates are now at 80.34% of their original sizes. [2018-11-23 12:36:55,782 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 12:36:55,822 INFO L415 sIntCurrentIteration]: We unified 501 AI predicates to 501 [2018-11-23 12:36:55,823 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 12:36:55,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 12:36:55,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-11-23 12:36:55,823 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:36:55,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 12:36:55,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 12:36:55,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 12:36:55,824 INFO L87 Difference]: Start difference. First operand 2598 states and 3508 transitions. Second operand 9 states. [2018-11-23 12:37:05,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:37:05,453 INFO L93 Difference]: Finished difference Result 5906 states and 8254 transitions. [2018-11-23 12:37:05,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 12:37:05,454 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 502 [2018-11-23 12:37:05,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:37:05,466 INFO L225 Difference]: With dead ends: 5906 [2018-11-23 12:37:05,466 INFO L226 Difference]: Without dead ends: 3680 [2018-11-23 12:37:05,475 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 508 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-23 12:37:05,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3680 states. [2018-11-23 12:37:05,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3680 to 3665. [2018-11-23 12:37:05,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3665 states. [2018-11-23 12:37:05,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3665 states to 3665 states and 4815 transitions. [2018-11-23 12:37:05,541 INFO L78 Accepts]: Start accepts. Automaton has 3665 states and 4815 transitions. Word has length 502 [2018-11-23 12:37:05,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:37:05,542 INFO L480 AbstractCegarLoop]: Abstraction has 3665 states and 4815 transitions. [2018-11-23 12:37:05,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 12:37:05,542 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 4815 transitions. [2018-11-23 12:37:05,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2018-11-23 12:37:05,555 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:37:05,555 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:37:05,555 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:37:05,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:37:05,556 INFO L82 PathProgramCache]: Analyzing trace with hash 843801242, now seen corresponding path program 1 times [2018-11-23 12:37:05,556 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:37:05,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:37:05,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:37:05,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:37:05,557 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:37:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:37:06,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 541 proven. 458 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-11-23 12:37:06,248 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:37:06,248 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:37:06,248 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 608 with the following transitions: [2018-11-23 12:37:06,249 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:37:06,251 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:37:06,251 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:37:13,447 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:37:13,447 INFO L272 AbstractInterpreter]: Visited 163 different actions 647 times. Merged at 7 different actions 28 times. Widened at 1 different actions 1 times. Performed 6887 root evaluator evaluations with a maximum evaluation depth of 22. Performed 6887 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-23 12:37:13,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:37:13,449 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:37:13,449 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:37:13,450 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:37:13,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:37:13,456 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:37:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:37:13,580 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:37:13,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 881 proven. 2 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2018-11-23 12:37:13,887 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:37:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 537 proven. 112 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2018-11-23 12:37:14,290 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:37:14,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-23 12:37:14,290 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:37:14,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 12:37:14,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 12:37:14,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-11-23 12:37:14,291 INFO L87 Difference]: Start difference. First operand 3665 states and 4815 transitions. Second operand 17 states. [2018-11-23 12:37:17,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:37:17,442 INFO L93 Difference]: Finished difference Result 8464 states and 11567 transitions. [2018-11-23 12:37:17,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-23 12:37:17,444 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 607 [2018-11-23 12:37:17,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:37:17,457 INFO L225 Difference]: With dead ends: 8464 [2018-11-23 12:37:17,458 INFO L226 Difference]: Without dead ends: 4020 [2018-11-23 12:37:17,471 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1274 GetRequests, 1226 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=536, Invalid=1816, Unknown=0, NotChecked=0, Total=2352 [2018-11-23 12:37:17,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4020 states. [2018-11-23 12:37:17,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4020 to 3517. [2018-11-23 12:37:17,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3517 states. [2018-11-23 12:37:17,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3517 states to 3517 states and 4080 transitions. [2018-11-23 12:37:17,529 INFO L78 Accepts]: Start accepts. Automaton has 3517 states and 4080 transitions. Word has length 607 [2018-11-23 12:37:17,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:37:17,530 INFO L480 AbstractCegarLoop]: Abstraction has 3517 states and 4080 transitions. [2018-11-23 12:37:17,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 12:37:17,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3517 states and 4080 transitions. [2018-11-23 12:37:17,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2018-11-23 12:37:17,537 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:37:17,537 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:37:17,537 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:37:17,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:37:17,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1294933294, now seen corresponding path program 1 times [2018-11-23 12:37:17,538 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:37:17,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:37:17,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:37:17,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:37:17,539 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:37:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:37:18,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 467 proven. 513 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-11-23 12:37:18,343 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:37:18,343 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:37:18,343 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 682 with the following transitions: [2018-11-23 12:37:18,343 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:37:18,346 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:37:18,346 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:37:22,308 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:37:22,308 INFO L272 AbstractInterpreter]: Visited 191 different actions 761 times. Merged at 9 different actions 30 times. Widened at 1 different actions 1 times. Performed 8322 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8322 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-23 12:37:22,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:37:22,309 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:37:22,309 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:37:22,309 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:37:22,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:37:22,315 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:37:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:37:22,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:37:22,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 963 proven. 2 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2018-11-23 12:37:22,622 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:37:23,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 466 proven. 228 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2018-11-23 12:37:23,027 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:37:23,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 20 [2018-11-23 12:37:23,027 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:37:23,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 12:37:23,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 12:37:23,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2018-11-23 12:37:23,028 INFO L87 Difference]: Start difference. First operand 3517 states and 4080 transitions. Second operand 17 states. [2018-11-23 12:37:26,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:37:26,888 INFO L93 Difference]: Finished difference Result 10086 states and 12619 transitions. [2018-11-23 12:37:26,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-11-23 12:37:26,889 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 681 [2018-11-23 12:37:26,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:37:26,913 INFO L225 Difference]: With dead ends: 10086 [2018-11-23 12:37:26,913 INFO L226 Difference]: Without dead ends: 6941 [2018-11-23 12:37:26,930 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1452 GetRequests, 1391 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1054 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=797, Invalid=3109, Unknown=0, NotChecked=0, Total=3906 [2018-11-23 12:37:26,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6941 states. [2018-11-23 12:37:27,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6941 to 6835. [2018-11-23 12:37:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6835 states. [2018-11-23 12:37:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6835 states to 6835 states and 7935 transitions. [2018-11-23 12:37:27,057 INFO L78 Accepts]: Start accepts. Automaton has 6835 states and 7935 transitions. Word has length 681 [2018-11-23 12:37:27,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:37:27,058 INFO L480 AbstractCegarLoop]: Abstraction has 6835 states and 7935 transitions. [2018-11-23 12:37:27,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 12:37:27,058 INFO L276 IsEmpty]: Start isEmpty. Operand 6835 states and 7935 transitions. [2018-11-23 12:37:27,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2018-11-23 12:37:27,073 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:37:27,073 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:37:27,073 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:37:27,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:37:27,074 INFO L82 PathProgramCache]: Analyzing trace with hash 2003215569, now seen corresponding path program 1 times [2018-11-23 12:37:27,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:37:27,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:37:27,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:37:27,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:37:27,075 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:37:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:37:27,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 640 proven. 228 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2018-11-23 12:37:27,616 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:37:27,616 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:37:27,616 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 799 with the following transitions: [2018-11-23 12:37:27,616 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:37:27,618 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:37:27,618 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:37:31,662 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:37:31,662 INFO L272 AbstractInterpreter]: Visited 192 different actions 771 times. Merged at 10 different actions 36 times. Widened at 1 different actions 2 times. Performed 8491 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8491 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-23 12:37:31,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:37:31,670 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:37:31,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:37:31,670 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:37:31,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:37:31,676 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:37:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:37:31,779 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:37:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 1325 proven. 2 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-11-23 12:37:31,993 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:37:32,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 640 proven. 228 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2018-11-23 12:37:32,301 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:37:32,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-23 12:37:32,301 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:37:32,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 12:37:32,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 12:37:32,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-23 12:37:32,302 INFO L87 Difference]: Start difference. First operand 6835 states and 7935 transitions. Second operand 7 states. [2018-11-23 12:37:33,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:37:33,404 INFO L93 Difference]: Finished difference Result 18167 states and 25619 transitions. [2018-11-23 12:37:33,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 12:37:33,405 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 798 [2018-11-23 12:37:33,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:37:33,469 INFO L225 Difference]: With dead ends: 18167 [2018-11-23 12:37:33,469 INFO L226 Difference]: Without dead ends: 11704 [2018-11-23 12:37:33,511 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1612 GetRequests, 1598 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-11-23 12:37:33,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11704 states. [2018-11-23 12:37:33,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11704 to 11496. [2018-11-23 12:37:33,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11496 states. [2018-11-23 12:37:33,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11496 states to 11496 states and 13853 transitions. [2018-11-23 12:37:33,754 INFO L78 Accepts]: Start accepts. Automaton has 11496 states and 13853 transitions. Word has length 798 [2018-11-23 12:37:33,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:37:33,755 INFO L480 AbstractCegarLoop]: Abstraction has 11496 states and 13853 transitions. [2018-11-23 12:37:33,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 12:37:33,755 INFO L276 IsEmpty]: Start isEmpty. Operand 11496 states and 13853 transitions. [2018-11-23 12:37:33,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2018-11-23 12:37:33,770 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:37:33,771 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:37:33,771 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:37:33,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:37:33,771 INFO L82 PathProgramCache]: Analyzing trace with hash 304342525, now seen corresponding path program 1 times [2018-11-23 12:37:33,772 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:37:33,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:37:33,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:37:33,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:37:33,772 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:37:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:37:35,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 695 proven. 1124 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2018-11-23 12:37:35,049 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:37:35,049 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:37:35,050 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 925 with the following transitions: [2018-11-23 12:37:35,050 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:37:35,052 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:37:35,052 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:37:38,992 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:37:38,992 INFO L272 AbstractInterpreter]: Visited 192 different actions 770 times. Merged at 10 different actions 35 times. Widened at 1 different actions 2 times. Performed 8447 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8447 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-23 12:37:38,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:37:38,998 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:37:38,998 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:37:38,998 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:37:39,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:37:39,004 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:37:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:37:39,105 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:37:39,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1705 proven. 2 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2018-11-23 12:37:39,578 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:37:40,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 823 proven. 228 refuted. 0 times theorem prover too weak. 1477 trivial. 0 not checked. [2018-11-23 12:37:40,073 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:37:40,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 20 [2018-11-23 12:37:40,074 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:37:40,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 12:37:40,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 12:37:40,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2018-11-23 12:37:40,075 INFO L87 Difference]: Start difference. First operand 11496 states and 13853 transitions. Second operand 18 states. [2018-11-23 12:37:44,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:37:44,354 INFO L93 Difference]: Finished difference Result 25823 states and 33686 transitions. [2018-11-23 12:37:44,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-11-23 12:37:44,355 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 924 [2018-11-23 12:37:44,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:37:44,396 INFO L225 Difference]: With dead ends: 25823 [2018-11-23 12:37:44,396 INFO L226 Difference]: Without dead ends: 14515 [2018-11-23 12:37:44,432 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1948 GetRequests, 1875 SyntacticMatches, 5 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1454 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=949, Invalid=3881, Unknown=0, NotChecked=0, Total=4830 [2018-11-23 12:37:44,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14515 states. [2018-11-23 12:37:44,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14515 to 14229. [2018-11-23 12:37:44,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14229 states. [2018-11-23 12:37:44,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14229 states to 14229 states and 17520 transitions. [2018-11-23 12:37:44,651 INFO L78 Accepts]: Start accepts. Automaton has 14229 states and 17520 transitions. Word has length 924 [2018-11-23 12:37:44,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:37:44,652 INFO L480 AbstractCegarLoop]: Abstraction has 14229 states and 17520 transitions. [2018-11-23 12:37:44,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 12:37:44,652 INFO L276 IsEmpty]: Start isEmpty. Operand 14229 states and 17520 transitions. [2018-11-23 12:37:44,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2018-11-23 12:37:44,671 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:37:44,671 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:37:44,671 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:37:44,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:37:44,672 INFO L82 PathProgramCache]: Analyzing trace with hash 269621054, now seen corresponding path program 1 times [2018-11-23 12:37:44,672 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:37:44,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:37:44,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:37:44,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:37:44,673 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:37:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:37:45,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 856 proven. 228 refuted. 0 times theorem prover too weak. 1509 trivial. 0 not checked. [2018-11-23 12:37:45,204 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:37:45,204 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:37:45,204 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 958 with the following transitions: [2018-11-23 12:37:45,204 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [854], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:37:45,206 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:37:45,206 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:37:49,223 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:37:49,223 INFO L272 AbstractInterpreter]: Visited 193 different actions 768 times. Merged at 10 different actions 29 times. Never widened. Performed 8443 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8443 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 12 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-23 12:37:49,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:37:49,230 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:37:49,230 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:37:49,230 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:37:49,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:37:49,236 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:37:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:37:49,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:37:49,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 1763 proven. 2 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2018-11-23 12:37:49,640 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:37:49,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 856 proven. 228 refuted. 0 times theorem prover too weak. 1509 trivial. 0 not checked. [2018-11-23 12:37:50,009 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:37:50,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-23 12:37:50,009 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:37:50,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 12:37:50,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 12:37:50,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-23 12:37:50,010 INFO L87 Difference]: Start difference. First operand 14229 states and 17520 transitions. Second operand 7 states. [2018-11-23 12:37:50,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:37:50,878 INFO L93 Difference]: Finished difference Result 29461 states and 36551 transitions. [2018-11-23 12:37:50,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 12:37:50,878 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 957 [2018-11-23 12:37:50,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:37:50,912 INFO L225 Difference]: With dead ends: 29461 [2018-11-23 12:37:50,912 INFO L226 Difference]: Without dead ends: 15422 [2018-11-23 12:37:50,941 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1930 GetRequests, 1916 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-11-23 12:37:50,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15422 states. [2018-11-23 12:37:51,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15422 to 15299. [2018-11-23 12:37:51,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15299 states. [2018-11-23 12:37:51,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15299 states to 15299 states and 18204 transitions. [2018-11-23 12:37:51,135 INFO L78 Accepts]: Start accepts. Automaton has 15299 states and 18204 transitions. Word has length 957 [2018-11-23 12:37:51,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:37:51,136 INFO L480 AbstractCegarLoop]: Abstraction has 15299 states and 18204 transitions. [2018-11-23 12:37:51,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 12:37:51,136 INFO L276 IsEmpty]: Start isEmpty. Operand 15299 states and 18204 transitions. [2018-11-23 12:37:51,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1052 [2018-11-23 12:37:51,158 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:37:51,158 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:37:51,158 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:37:51,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:37:51,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1368623598, now seen corresponding path program 1 times [2018-11-23 12:37:51,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:37:51,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:37:51,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:37:51,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:37:51,160 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:37:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:37:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3189 backedges. 753 proven. 1425 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2018-11-23 12:37:52,757 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:37:52,757 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:37:52,758 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1052 with the following transitions: [2018-11-23 12:37:52,758 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:37:52,760 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:37:52,760 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:37:56,789 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:37:56,790 INFO L272 AbstractInterpreter]: Visited 194 different actions 778 times. Merged at 10 different actions 35 times. Widened at 1 different actions 1 times. Performed 8593 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8593 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 14 fixpoints after 7 different actions. Largest state had 24 variables. [2018-11-23 12:37:56,791 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:37:56,791 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:37:56,791 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:37:56,791 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:37:56,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:37:56,798 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:37:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:37:56,920 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:37:57,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3189 backedges. 2140 proven. 2 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2018-11-23 12:37:57,232 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:37:57,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3189 backedges. 756 proven. 477 refuted. 0 times theorem prover too weak. 1956 trivial. 0 not checked. [2018-11-23 12:37:57,854 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:37:57,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 20 [2018-11-23 12:37:57,854 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:37:57,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 12:37:57,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 12:37:57,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-11-23 12:37:57,855 INFO L87 Difference]: Start difference. First operand 15299 states and 18204 transitions. Second operand 18 states. [2018-11-23 12:38:01,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:38:01,650 INFO L93 Difference]: Finished difference Result 30524 states and 36560 transitions. [2018-11-23 12:38:01,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-11-23 12:38:01,650 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1051 [2018-11-23 12:38:01,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:38:01,680 INFO L225 Difference]: With dead ends: 30524 [2018-11-23 12:38:01,680 INFO L226 Difference]: Without dead ends: 15415 [2018-11-23 12:38:01,709 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2197 GetRequests, 2131 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1284 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=911, Invalid=3645, Unknown=0, NotChecked=0, Total=4556 [2018-11-23 12:38:01,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15415 states. [2018-11-23 12:38:01,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15415 to 15282. [2018-11-23 12:38:01,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15282 states. [2018-11-23 12:38:01,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15282 states to 15282 states and 17566 transitions. [2018-11-23 12:38:01,902 INFO L78 Accepts]: Start accepts. Automaton has 15282 states and 17566 transitions. Word has length 1051 [2018-11-23 12:38:01,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:38:01,902 INFO L480 AbstractCegarLoop]: Abstraction has 15282 states and 17566 transitions. [2018-11-23 12:38:01,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 12:38:01,902 INFO L276 IsEmpty]: Start isEmpty. Operand 15282 states and 17566 transitions. [2018-11-23 12:38:01,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1133 [2018-11-23 12:38:01,920 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:38:01,920 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:38:01,921 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:38:01,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:38:01,921 INFO L82 PathProgramCache]: Analyzing trace with hash 642765001, now seen corresponding path program 1 times [2018-11-23 12:38:01,921 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:38:01,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:01,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:01,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:01,922 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:38:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 1598 proven. 230 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2018-11-23 12:38:02,643 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:38:02,643 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:38:02,644 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1133 with the following transitions: [2018-11-23 12:38:02,644 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:38:02,646 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:38:02,646 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:38:06,707 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:38:06,707 INFO L272 AbstractInterpreter]: Visited 195 different actions 784 times. Merged at 11 different actions 37 times. Widened at 1 different actions 1 times. Performed 8646 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8646 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 7 different actions. Largest state had 24 variables. [2018-11-23 12:38:06,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:38:06,708 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:38:06,709 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:38:06,709 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:38:06,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:06,715 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:38:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:06,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:38:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 2397 proven. 6 refuted. 0 times theorem prover too weak. 1473 trivial. 0 not checked. [2018-11-23 12:38:07,236 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:38:07,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 1598 proven. 303 refuted. 0 times theorem prover too weak. 1975 trivial. 0 not checked. [2018-11-23 12:38:07,805 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:38:07,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-11-23 12:38:07,806 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:38:07,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 12:38:07,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 12:38:07,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2018-11-23 12:38:07,807 INFO L87 Difference]: Start difference. First operand 15282 states and 17566 transitions. Second operand 9 states. [2018-11-23 12:38:10,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:38:10,602 INFO L93 Difference]: Finished difference Result 34438 states and 39815 transitions. [2018-11-23 12:38:10,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 12:38:10,602 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1132 [2018-11-23 12:38:10,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:38:10,630 INFO L225 Difference]: With dead ends: 34438 [2018-11-23 12:38:10,630 INFO L226 Difference]: Without dead ends: 19346 [2018-11-23 12:38:10,648 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2281 GetRequests, 2262 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2018-11-23 12:38:10,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19346 states. [2018-11-23 12:38:10,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19346 to 18823. [2018-11-23 12:38:10,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18823 states. [2018-11-23 12:38:10,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18823 states to 18823 states and 21694 transitions. [2018-11-23 12:38:10,851 INFO L78 Accepts]: Start accepts. Automaton has 18823 states and 21694 transitions. Word has length 1132 [2018-11-23 12:38:10,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:38:10,852 INFO L480 AbstractCegarLoop]: Abstraction has 18823 states and 21694 transitions. [2018-11-23 12:38:10,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 12:38:10,853 INFO L276 IsEmpty]: Start isEmpty. Operand 18823 states and 21694 transitions. [2018-11-23 12:38:10,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1166 [2018-11-23 12:38:10,871 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:38:10,872 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:38:10,872 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:38:10,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:38:10,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1666228294, now seen corresponding path program 1 times [2018-11-23 12:38:10,872 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:38:10,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:10,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:10,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:10,873 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:38:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:12,835 INFO L134 CoverageAnalysis]: Checked inductivity of 4071 backedges. 1172 proven. 1917 refuted. 0 times theorem prover too weak. 982 trivial. 0 not checked. [2018-11-23 12:38:12,836 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:38:12,836 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:38:12,836 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1166 with the following transitions: [2018-11-23 12:38:12,836 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:38:12,838 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:38:12,838 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:38:20,045 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:38:20,045 INFO L272 AbstractInterpreter]: Visited 195 different actions 777 times. Merged at 11 different actions 30 times. Never widened. Performed 8611 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8611 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 16 fixpoints after 7 different actions. Largest state had 24 variables. [2018-11-23 12:38:20,046 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:38:20,046 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:38:20,046 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:38:20,046 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:38:20,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:20,053 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:38:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:20,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:38:20,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4071 backedges. 2002 proven. 2 refuted. 0 times theorem prover too weak. 2067 trivial. 0 not checked. [2018-11-23 12:38:20,648 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:38:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4071 backedges. 1170 proven. 112 refuted. 0 times theorem prover too weak. 2789 trivial. 0 not checked. [2018-11-23 12:38:21,233 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:38:21,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 19 [2018-11-23 12:38:21,233 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:38:21,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 12:38:21,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 12:38:21,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2018-11-23 12:38:21,234 INFO L87 Difference]: Start difference. First operand 18823 states and 21694 transitions. Second operand 18 states. [2018-11-23 12:38:24,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:38:24,179 INFO L93 Difference]: Finished difference Result 35653 states and 41341 transitions. [2018-11-23 12:38:24,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-11-23 12:38:24,179 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1165 [2018-11-23 12:38:24,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:38:24,204 INFO L225 Difference]: With dead ends: 35653 [2018-11-23 12:38:24,204 INFO L226 Difference]: Without dead ends: 17020 [2018-11-23 12:38:24,230 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2426 GetRequests, 2365 SyntacticMatches, 4 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 983 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=642, Invalid=2780, Unknown=0, NotChecked=0, Total=3422 [2018-11-23 12:38:24,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17020 states. [2018-11-23 12:38:24,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17020 to 16752. [2018-11-23 12:38:24,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16752 states. [2018-11-23 12:38:24,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16752 states to 16752 states and 18379 transitions. [2018-11-23 12:38:24,428 INFO L78 Accepts]: Start accepts. Automaton has 16752 states and 18379 transitions. Word has length 1165 [2018-11-23 12:38:24,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:38:24,429 INFO L480 AbstractCegarLoop]: Abstraction has 16752 states and 18379 transitions. [2018-11-23 12:38:24,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 12:38:24,429 INFO L276 IsEmpty]: Start isEmpty. Operand 16752 states and 18379 transitions. [2018-11-23 12:38:24,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1284 [2018-11-23 12:38:24,442 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:38:24,443 INFO L402 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:38:24,443 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:38:24,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:38:24,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1227148822, now seen corresponding path program 1 times [2018-11-23 12:38:24,443 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:38:24,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:24,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:24,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:24,444 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:38:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:26,058 INFO L134 CoverageAnalysis]: Checked inductivity of 5076 backedges. 1326 proven. 937 refuted. 0 times theorem prover too weak. 2813 trivial. 0 not checked. [2018-11-23 12:38:26,058 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:38:26,058 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:38:26,058 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1284 with the following transitions: [2018-11-23 12:38:26,058 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:38:26,060 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:38:26,060 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:38:33,229 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:38:33,229 INFO L272 AbstractInterpreter]: Visited 196 different actions 783 times. Merged at 10 different actions 32 times. Widened at 1 different actions 1 times. Performed 8796 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8796 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 17 fixpoints after 9 different actions. Largest state had 24 variables. [2018-11-23 12:38:33,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:38:33,234 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:38:33,234 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:38:33,234 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:38:33,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:33,241 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:38:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:33,377 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:38:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 5076 backedges. 2281 proven. 2 refuted. 0 times theorem prover too weak. 2793 trivial. 0 not checked. [2018-11-23 12:38:33,871 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:38:34,856 INFO L134 CoverageAnalysis]: Checked inductivity of 5076 backedges. 1335 proven. 112 refuted. 0 times theorem prover too weak. 3629 trivial. 0 not checked. [2018-11-23 12:38:34,871 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:38:34,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-23 12:38:34,872 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:38:34,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 12:38:34,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 12:38:34,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-11-23 12:38:34,874 INFO L87 Difference]: Start difference. First operand 16752 states and 18379 transitions. Second operand 17 states. [2018-11-23 12:38:38,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:38:38,431 INFO L93 Difference]: Finished difference Result 33767 states and 37089 transitions. [2018-11-23 12:38:38,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-11-23 12:38:38,431 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1283 [2018-11-23 12:38:38,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:38:38,453 INFO L225 Difference]: With dead ends: 33767 [2018-11-23 12:38:38,453 INFO L226 Difference]: Without dead ends: 17205 [2018-11-23 12:38:38,471 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2647 GetRequests, 2590 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 834 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=631, Invalid=2675, Unknown=0, NotChecked=0, Total=3306 [2018-11-23 12:38:38,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17205 states. [2018-11-23 12:38:38,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17205 to 16716. [2018-11-23 12:38:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16716 states. [2018-11-23 12:38:38,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16716 states to 16716 states and 18283 transitions. [2018-11-23 12:38:38,635 INFO L78 Accepts]: Start accepts. Automaton has 16716 states and 18283 transitions. Word has length 1283 [2018-11-23 12:38:38,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:38:38,635 INFO L480 AbstractCegarLoop]: Abstraction has 16716 states and 18283 transitions. [2018-11-23 12:38:38,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 12:38:38,636 INFO L276 IsEmpty]: Start isEmpty. Operand 16716 states and 18283 transitions. [2018-11-23 12:38:38,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1605 [2018-11-23 12:38:38,654 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:38:38,654 INFO L402 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:38:38,654 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:38:38,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:38:38,655 INFO L82 PathProgramCache]: Analyzing trace with hash -560085719, now seen corresponding path program 1 times [2018-11-23 12:38:38,655 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:38:38,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:38,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:38,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:38,655 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:38:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:39,650 INFO L134 CoverageAnalysis]: Checked inductivity of 7674 backedges. 1895 proven. 2 refuted. 0 times theorem prover too weak. 5777 trivial. 0 not checked. [2018-11-23 12:38:39,650 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:38:39,650 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:38:39,650 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1605 with the following transitions: [2018-11-23 12:38:39,650 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [667], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:38:39,652 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:38:39,653 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:38:43,662 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:38:43,662 INFO L272 AbstractInterpreter]: Visited 201 different actions 803 times. Merged at 11 different actions 32 times. Never widened. Performed 8937 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8937 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 19 fixpoints after 9 different actions. Largest state had 24 variables. [2018-11-23 12:38:43,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:38:43,664 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:38:43,664 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:38:43,664 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/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 [2018-11-23 12:38:43,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:43,671 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:38:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:43,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:38:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 7674 backedges. 1895 proven. 2 refuted. 0 times theorem prover too weak. 5777 trivial. 0 not checked. [2018-11-23 12:38:44,482 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:38:45,235 INFO L134 CoverageAnalysis]: Checked inductivity of 7674 backedges. 1895 proven. 2 refuted. 0 times theorem prover too weak. 5777 trivial. 0 not checked. [2018-11-23 12:38:45,251 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:38:45,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-11-23 12:38:45,251 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:38:45,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 12:38:45,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 12:38:45,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-23 12:38:45,252 INFO L87 Difference]: Start difference. First operand 16716 states and 18283 transitions. Second operand 10 states. [2018-11-23 12:38:46,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:38:46,208 INFO L93 Difference]: Finished difference Result 35182 states and 38847 transitions. [2018-11-23 12:38:46,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 12:38:46,208 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1604 [2018-11-23 12:38:46,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:38:46,217 INFO L225 Difference]: With dead ends: 35182 [2018-11-23 12:38:46,217 INFO L226 Difference]: Without dead ends: 6257 [2018-11-23 12:38:46,239 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3232 GetRequests, 3212 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2018-11-23 12:38:46,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6257 states. [2018-11-23 12:38:46,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6257 to 5754. [2018-11-23 12:38:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5754 states. [2018-11-23 12:38:46,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5754 states to 5754 states and 5972 transitions. [2018-11-23 12:38:46,296 INFO L78 Accepts]: Start accepts. Automaton has 5754 states and 5972 transitions. Word has length 1604 [2018-11-23 12:38:46,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:38:46,297 INFO L480 AbstractCegarLoop]: Abstraction has 5754 states and 5972 transitions. [2018-11-23 12:38:46,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 12:38:46,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5754 states and 5972 transitions. [2018-11-23 12:38:46,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1606 [2018-11-23 12:38:46,309 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:38:46,310 INFO L402 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:38:46,310 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:38:46,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:38:46,310 INFO L82 PathProgramCache]: Analyzing trace with hash 888570278, now seen corresponding path program 1 times [2018-11-23 12:38:46,310 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:38:46,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:46,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:46,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:38:46,311 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:38:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 7681 backedges. 1656 proven. 1159 refuted. 0 times theorem prover too weak. 4866 trivial. 0 not checked. [2018-11-23 12:38:48,096 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:38:48,096 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:38:48,097 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1606 with the following transitions: [2018-11-23 12:38:48,097 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:38:48,099 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:38:48,099 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:38:55,236 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:38:55,236 INFO L272 AbstractInterpreter]: Visited 201 different actions 806 times. Merged at 12 different actions 35 times. Never widened. Performed 8977 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8977 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 19 fixpoints after 9 different actions. Largest state had 24 variables. [2018-11-23 12:38:55,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:38:55,246 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:38:55,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:38:55,246 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/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 [2018-11-23 12:38:55,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:38:55,252 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:38:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:38:55,437 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:38:56,129 INFO L134 CoverageAnalysis]: Checked inductivity of 7681 backedges. 2894 proven. 2 refuted. 0 times theorem prover too weak. 4785 trivial. 0 not checked. [2018-11-23 12:38:56,129 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:38:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 7681 backedges. 1665 proven. 112 refuted. 0 times theorem prover too weak. 5904 trivial. 0 not checked. [2018-11-23 12:38:57,396 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:38:57,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-23 12:38:57,396 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:38:57,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 12:38:57,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 12:38:57,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-11-23 12:38:57,398 INFO L87 Difference]: Start difference. First operand 5754 states and 5972 transitions. Second operand 17 states. [2018-11-23 12:39:00,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:39:00,182 INFO L93 Difference]: Finished difference Result 11672 states and 12114 transitions. [2018-11-23 12:39:00,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-23 12:39:00,182 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1605 [2018-11-23 12:39:00,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:39:00,188 INFO L225 Difference]: With dead ends: 11672 [2018-11-23 12:39:00,188 INFO L226 Difference]: Without dead ends: 5753 [2018-11-23 12:39:00,193 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3274 GetRequests, 3226 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=469, Invalid=1883, Unknown=0, NotChecked=0, Total=2352 [2018-11-23 12:39:00,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5753 states. [2018-11-23 12:39:00,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5753 to 5401. [2018-11-23 12:39:00,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5401 states. [2018-11-23 12:39:00,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 5588 transitions. [2018-11-23 12:39:00,245 INFO L78 Accepts]: Start accepts. Automaton has 5401 states and 5588 transitions. Word has length 1605 [2018-11-23 12:39:00,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:39:00,246 INFO L480 AbstractCegarLoop]: Abstraction has 5401 states and 5588 transitions. [2018-11-23 12:39:00,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 12:39:00,246 INFO L276 IsEmpty]: Start isEmpty. Operand 5401 states and 5588 transitions. [2018-11-23 12:39:00,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1823 [2018-11-23 12:39:00,262 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:39:00,262 INFO L402 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:39:00,262 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:39:00,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:39:00,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1822319605, now seen corresponding path program 1 times [2018-11-23 12:39:00,263 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:39:00,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:39:00,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:39:00,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:39:00,263 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:39:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:39:02,697 INFO L134 CoverageAnalysis]: Checked inductivity of 10353 backedges. 2004 proven. 2489 refuted. 0 times theorem prover too weak. 5860 trivial. 0 not checked. [2018-11-23 12:39:02,697 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:39:02,697 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:39:02,698 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1823 with the following transitions: [2018-11-23 12:39:02,698 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [634], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:39:02,700 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:39:02,700 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:39:09,857 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:39:09,857 INFO L272 AbstractInterpreter]: Visited 203 different actions 814 times. Merged at 10 different actions 35 times. Widened at 1 different actions 1 times. Performed 9137 root evaluator evaluations with a maximum evaluation depth of 22. Performed 9137 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 21 fixpoints after 13 different actions. Largest state had 24 variables. [2018-11-23 12:39:09,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:39:09,862 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:39:09,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:39:09,862 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:39:09,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:39:09,869 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:39:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:39:10,069 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:39:10,904 INFO L134 CoverageAnalysis]: Checked inductivity of 10353 backedges. 4409 proven. 6 refuted. 0 times theorem prover too weak. 5938 trivial. 0 not checked. [2018-11-23 12:39:10,904 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:39:12,397 INFO L134 CoverageAnalysis]: Checked inductivity of 10353 backedges. 2973 proven. 214 refuted. 0 times theorem prover too weak. 7166 trivial. 0 not checked. [2018-11-23 12:39:12,413 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:39:12,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 18 [2018-11-23 12:39:12,414 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:39:12,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-23 12:39:12,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-23 12:39:12,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2018-11-23 12:39:12,416 INFO L87 Difference]: Start difference. First operand 5401 states and 5588 transitions. Second operand 16 states. [2018-11-23 12:39:15,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:39:15,070 INFO L93 Difference]: Finished difference Result 10775 states and 11295 transitions. [2018-11-23 12:39:15,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-23 12:39:15,070 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1822 [2018-11-23 12:39:15,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:39:15,077 INFO L225 Difference]: With dead ends: 10775 [2018-11-23 12:39:15,077 INFO L226 Difference]: Without dead ends: 5017 [2018-11-23 12:39:15,082 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3724 GetRequests, 3678 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=469, Invalid=1787, Unknown=0, NotChecked=0, Total=2256 [2018-11-23 12:39:15,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5017 states. [2018-11-23 12:39:15,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5017 to 4572. [2018-11-23 12:39:15,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4572 states. [2018-11-23 12:39:15,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4572 states to 4572 states and 4717 transitions. [2018-11-23 12:39:15,151 INFO L78 Accepts]: Start accepts. Automaton has 4572 states and 4717 transitions. Word has length 1822 [2018-11-23 12:39:15,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:39:15,152 INFO L480 AbstractCegarLoop]: Abstraction has 4572 states and 4717 transitions. [2018-11-23 12:39:15,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-23 12:39:15,153 INFO L276 IsEmpty]: Start isEmpty. Operand 4572 states and 4717 transitions. [2018-11-23 12:39:15,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1846 [2018-11-23 12:39:15,176 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:39:15,177 INFO L402 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:39:15,177 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:39:15,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:39:15,177 INFO L82 PathProgramCache]: Analyzing trace with hash -318110582, now seen corresponding path program 1 times [2018-11-23 12:39:15,177 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:39:15,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:39:15,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:39:15,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:39:15,178 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:39:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:39:18,477 INFO L134 CoverageAnalysis]: Checked inductivity of 10523 backedges. 2000 proven. 6738 refuted. 0 times theorem prover too weak. 1785 trivial. 0 not checked. [2018-11-23 12:39:18,477 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:39:18,477 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:39:18,478 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1846 with the following transitions: [2018-11-23 12:39:18,478 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 12:39:18,479 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:39:18,480 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:39:25,600 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:39:25,600 INFO L272 AbstractInterpreter]: Visited 203 different actions 814 times. Merged at 10 different actions 35 times. Widened at 1 different actions 2 times. Performed 9165 root evaluator evaluations with a maximum evaluation depth of 22. Performed 9165 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 21 fixpoints after 13 different actions. Largest state had 24 variables. [2018-11-23 12:39:25,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:39:25,601 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:39:25,602 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:39:25,602 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:39:25,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:39:25,608 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:39:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:39:25,811 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:39:26,801 INFO L134 CoverageAnalysis]: Checked inductivity of 10523 backedges. 4681 proven. 6 refuted. 0 times theorem prover too weak. 5836 trivial. 0 not checked. [2018-11-23 12:39:26,801 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:39:28,588 INFO L134 CoverageAnalysis]: Checked inductivity of 10523 backedges. 3110 proven. 349 refuted. 0 times theorem prover too weak. 7064 trivial. 0 not checked. [2018-11-23 12:39:28,604 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:39:28,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 8, 8] total 38 [2018-11-23 12:39:28,604 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:39:28,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-23 12:39:28,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-23 12:39:28,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1260, Unknown=0, NotChecked=0, Total=1406 [2018-11-23 12:39:28,606 INFO L87 Difference]: Start difference. First operand 4572 states and 4717 transitions. Second operand 33 states. [2018-11-23 12:39:35,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:39:35,649 INFO L93 Difference]: Finished difference Result 9902 states and 10433 transitions. [2018-11-23 12:39:35,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-11-23 12:39:35,649 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 1845 [2018-11-23 12:39:35,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:39:35,655 INFO L225 Difference]: With dead ends: 9902 [2018-11-23 12:39:35,655 INFO L226 Difference]: Without dead ends: 4394 [2018-11-23 12:39:35,660 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3833 GetRequests, 3720 SyntacticMatches, 1 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3756 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2206, Invalid=10676, Unknown=0, NotChecked=0, Total=12882 [2018-11-23 12:39:35,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2018-11-23 12:39:35,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 3899. [2018-11-23 12:39:35,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3899 states. [2018-11-23 12:39:35,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3899 states to 3899 states and 3977 transitions. [2018-11-23 12:39:35,701 INFO L78 Accepts]: Start accepts. Automaton has 3899 states and 3977 transitions. Word has length 1845 [2018-11-23 12:39:35,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:39:35,702 INFO L480 AbstractCegarLoop]: Abstraction has 3899 states and 3977 transitions. [2018-11-23 12:39:35,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-23 12:39:35,702 INFO L276 IsEmpty]: Start isEmpty. Operand 3899 states and 3977 transitions. [2018-11-23 12:39:35,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1938 [2018-11-23 12:39:35,716 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:39:35,716 INFO L402 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:39:35,716 INFO L423 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:39:35,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:39:35,717 INFO L82 PathProgramCache]: Analyzing trace with hash -2043261290, now seen corresponding path program 1 times [2018-11-23 12:39:35,717 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:39:35,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:39:35,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:39:35,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:39:35,718 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:39:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:39:36,858 INFO L134 CoverageAnalysis]: Checked inductivity of 11762 backedges. 732 proven. 0 refuted. 0 times theorem prover too weak. 11030 trivial. 0 not checked. [2018-11-23 12:39:36,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:39:36,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 12:39:36,858 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:39:36,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 12:39:36,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 12:39:36,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 12:39:36,859 INFO L87 Difference]: Start difference. First operand 3899 states and 3977 transitions. Second operand 3 states. [2018-11-23 12:39:37,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:39:37,082 INFO L93 Difference]: Finished difference Result 3899 states and 3977 transitions. [2018-11-23 12:39:37,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 12:39:37,083 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1937 [2018-11-23 12:39:37,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:39:37,083 INFO L225 Difference]: With dead ends: 3899 [2018-11-23 12:39:37,084 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 12:39:37,085 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 12:39:37,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 12:39:37,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 12:39:37,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 12:39:37,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 12:39:37,086 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1937 [2018-11-23 12:39:37,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:39:37,086 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:39:37,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 12:39:37,086 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 12:39:37,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:39:37,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 12:39:37,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:37,240 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:37,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:37,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:37,301 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:37,498 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:37,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:37,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:37,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:37,910 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:37,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:38,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:38,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:38,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:38,602 WARN L180 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 770 DAG size of output: 654 [2018-11-23 12:39:38,779 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:38,891 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:38,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:38,976 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:38,992 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:39,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:39,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:39,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:39,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:39:39,473 WARN L180 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 746 DAG size of output: 640 [2018-11-23 12:39:40,669 WARN L180 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 361 DAG size of output: 115 [2018-11-23 12:39:43,273 WARN L180 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 643 DAG size of output: 96 [2018-11-23 12:39:45,832 WARN L180 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 641 DAG size of output: 100 [2018-11-23 12:39:45,834 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 12:39:45,835 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)) [2018-11-23 12:39:45,835 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:39:45,835 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-23 12:39:45,835 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-23 12:39:45,835 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,835 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,835 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,835 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-23 12:39:45,835 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-23 12:39:45,835 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-23 12:39:45,835 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-23 12:39:45,835 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-23 12:39:45,835 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-23 12:39:45,835 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,836 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-23 12:39:45,837 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,838 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-23 12:39:45,839 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-23 12:39:45,840 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-23 12:39:45,841 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse28 (= ~a12~0 |old(~a12~0)|)) (.cse8 (+ |old(~a12~0)| 43)) (.cse31 (= ~a21~0 9)) (.cse30 (= 1 ~a24~0)) (.cse11 (= 5 |old(~a15~0)|)) (.cse3 (<= ~a12~0 |old(~a12~0)|)) (.cse33 (<= |old(~a12~0)| ~a12~0)) (.cse4 (= ~a24~0 |old(~a24~0)|)) (.cse5 (= ~a21~0 |old(~a21~0)|)) (.cse29 (= |old(~a15~0)| ~a15~0))) (let ((.cse14 (and .cse3 .cse33 .cse4 .cse5 .cse29)) (.cse7 (+ ~a12~0 43)) (.cse6 (not (= 6 |old(~a15~0)|))) (.cse2 (not .cse11)) (.cse23 (and .cse3 .cse33 .cse31 .cse29 .cse30)) (.cse0 (not (= 6 |old(~a21~0)|))) (.cse16 (not (= 8 |old(~a15~0)|))) (.cse17 (= |calculate_output_#in~input| 0)) (.cse15 (and .cse3 .cse33 .cse5 (= 8 ~a15~0) (= ~a24~0 1))) (.cse20 (< 7 |old(~a15~0)|)) (.cse21 (< 0 .cse8)) (.cse27 (and .cse28 .cse4 .cse5 .cse29)) (.cse25 (< 73282 |old(~a12~0)|)) (.cse13 (not (= 8 |old(~a21~0)|))) (.cse24 (and .cse28 .cse29 .cse30 (= 10 ~a21~0))) (.cse9 (not (= 10 |old(~a21~0)|))) (.cse19 (< 11 |old(~a12~0)|)) (.cse32 (= 7 ~a15~0)) (.cse22 (not (= 9 |old(~a21~0)|))) (.cse26 (not (= 7 |old(~a15~0)|))) (.cse18 (not (= 7 |old(~a21~0)|))) (.cse10 (< |old(~a12~0)| 19)) (.cse1 (not (= 1 |old(~a24~0)|))) (.cse12 (and .cse3 .cse33 .cse5 .cse29 .cse30))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 (= ~a15~0 |old(~a15~0)|))) (or .cse6 (= 6 ~a15~0)) (or .cse0 (< 0 .cse7) (< 80 |old(~a12~0)|) (<= .cse8 0) .cse1 .cse2) (or .cse9 .cse10 .cse11 .cse1 .cse12) (or .cse11 .cse1 .cse13 .cse14) (or .cse15 (or .cse16 .cse17 .cse18 .cse1 .cse19)) (or .cse0 .cse14 .cse20 .cse21) (or .cse22 .cse23 .cse10 .cse11 .cse1) (or (<= .cse7 0) .cse6 .cse21) (or .cse9 .cse1 .cse2 .cse24 .cse25) (or .cse0 .cse10 .cse11 .cse12 .cse1) (or .cse22 (< |old(~a12~0)| 12) .cse23 .cse1 .cse25 .cse20) (or .cse0 .cse1 .cse26 .cse27) (or (and .cse28 .cse5 .cse29 .cse30) .cse18 (< 76 |old(~a12~0)|) .cse1 .cse20) (or .cse16 .cse17 .cse22 .cse15 .cse1 .cse19) (or .cse22 (and .cse28 .cse31 .cse29 .cse30) .cse1 .cse20 .cse21) (or .cse1 .cse27 .cse25 .cse13) (or .cse9 .cse1 .cse26 (and .cse28 .cse5 .cse32 .cse30)) (or .cse24 .cse9 .cse1 .cse19) (or (and .cse28 .cse31 .cse32 .cse30) .cse22 .cse1 .cse26) (or .cse18 .cse10 .cse11 .cse1 .cse12)))) [2018-11-23 12:39:45,841 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-23 12:39:45,841 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-23 12:39:45,841 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,841 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,841 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,841 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-23 12:39:45,841 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-23 12:39:45,841 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-23 12:39:45,841 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-23 12:39:45,841 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,842 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-23 12:39:45,843 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,844 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-23 12:39:45,845 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-23 12:39:45,846 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-23 12:39:45,847 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-23 12:39:45,848 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-23 12:39:45,849 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-23 12:39:45,850 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-23 12:39:45,850 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-23 12:39:45,850 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-23 12:39:45,850 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,850 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,850 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 12:39:45,850 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-23 12:39:45,850 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-23 12:39:45,850 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-23 12:39:45,850 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-23 12:39:45,850 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-23 12:39:45,850 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:39:45,850 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)) [2018-11-23 12:39:45,850 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 12:39:45,850 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 12:39:45,851 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (not (= 7 |old(~a21~0)|)) (and (= 7 ~a21~0) (<= |old(~a12~0)| ~a12~0) (<= (+ ~a12~0 49) 0) (= |old(~a15~0)| ~a15~0) (= ~a24~0 1)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-11-23 12:39:45,851 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-23 12:39:45,851 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse7 (= 5 ~a15~0)) (.cse19 (not (= 1 |old(~a24~0)|))) (.cse21 (= 9 ~a21~0))) (let ((.cse1 (= 6 ~a21~0)) (.cse24 (not .cse21)) (.cse6 (= 1 ~a24~0)) (.cse23 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)) .cse19)) (.cse11 (not .cse7))) (let ((.cse8 (= ~a21~0 7)) (.cse5 (= ~a21~0 8)) (.cse13 (= ~a21~0 10)) (.cse14 (and .cse24 .cse6 .cse23 .cse11)) (.cse17 (not (= main_~input~0 0))) (.cse18 (= ~a15~0 8)) (.cse9 (<= ~a12~0 11)) (.cse3 (<= ~a12~0 73282)) (.cse4 (and .cse24 .cse6 .cse23)) (.cse10 (= 10 ~a21~0)) (.cse2 (<= (+ ~a12~0 43) 0)) (.cse0 (<= ~a15~0 7)) (.cse12 (<= 19 ~a12~0)) (.cse15 (and .cse6 .cse23 .cse11)) (.cse16 (= ~a21~0 9)) (.cse20 (= 7 ~a15~0)) (.cse22 (and .cse1 .cse6 .cse23 .cse11))) (or (and .cse0 (and .cse1 .cse2)) (and .cse3 .cse4 .cse5) (and .cse1 .cse6 .cse7) (and (<= ~a12~0 76) .cse0 (and .cse6 .cse8)) (and (and .cse6 .cse9) .cse10) (not (= 7 |old(~a21~0)|)) (and (and .cse6 .cse8 .cse11) .cse12) (and (and .cse13 .cse14) .cse12) (and (and .cse15 .cse16) .cse12) (and (and .cse9 (and (= 7 ~a21~0) .cse17 .cse18)) .cse6) .cse19 (not (= 8 |old(~a15~0)|)) (and .cse14 .cse5) (and .cse20 .cse13 .cse14) (and (<= 12 ~a12~0) (and (and .cse3 .cse0 .cse16) .cse6)) (= 6 ~a15~0) (not (= 0 (+ |old(~a12~0)| 49))) (and (and .cse21 (and .cse17 .cse18 (= ~a24~0 1))) .cse9) (and .cse3 .cse4 .cse10 .cse7) (and (and .cse6 .cse2) .cse0 .cse16) (and .cse22 .cse12) (and .cse15 .cse20 .cse16) (and .cse20 .cse22))))) [2018-11-23 12:39:45,851 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-23 12:39:45,851 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-23 12:39:45,851 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse7 (= 5 ~a15~0)) (.cse20 (not (= 1 |old(~a24~0)|))) (.cse13 (= 9 ~a21~0))) (let ((.cse1 (= 6 ~a21~0)) (.cse24 (not .cse13)) (.cse6 (= 1 ~a24~0)) (.cse23 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)) .cse20)) (.cse14 (not .cse7))) (let ((.cse8 (= ~a21~0 7)) (.cse5 (= ~a21~0 8)) (.cse16 (= ~a21~0 10)) (.cse17 (and .cse24 .cse6 .cse23 .cse14)) (.cse11 (= ~a15~0 8)) (.cse12 (= ~a24~0 1)) (.cse9 (<= ~a12~0 11)) (.cse3 (<= ~a12~0 73282)) (.cse4 (and .cse24 .cse6 .cse23)) (.cse10 (= 10 ~a21~0)) (.cse2 (<= (+ ~a12~0 43) 0)) (.cse0 (<= ~a15~0 7)) (.cse15 (<= 19 ~a12~0)) (.cse18 (and .cse6 .cse23 .cse14)) (.cse19 (= ~a21~0 9)) (.cse21 (= 7 ~a15~0)) (.cse22 (and .cse1 .cse6 .cse23 .cse14))) (or (and .cse0 (and .cse1 .cse2)) (and .cse3 .cse4 .cse5) (and .cse1 .cse6 .cse7) (and (<= ~a12~0 76) .cse0 (and .cse6 .cse8)) (and (and .cse6 .cse9) .cse10) (not (= 7 |old(~a21~0)|)) (and .cse9 (and (and .cse11 .cse12) .cse13)) (and (and .cse6 .cse8 .cse14) .cse15) (and (and .cse16 .cse17) .cse15) (and (and .cse18 .cse19) .cse15) .cse20 (not (= 8 |old(~a15~0)|)) (and .cse17 .cse5) (and .cse21 .cse16 .cse17) (and (<= 12 ~a12~0) (and (and .cse3 .cse0 .cse19) .cse6)) (= 6 ~a15~0) (and (and (= 7 ~a21~0) .cse11 .cse12) .cse9) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse3 .cse4 .cse10 .cse7) (and (and .cse6 .cse2) .cse0 .cse19) (and .cse22 .cse15) (and .cse18 .cse21 .cse19) (and .cse21 .cse22))))) [2018-11-23 12:39:45,852 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-11-23 12:39:45,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:39:45 BoogieIcfgContainer [2018-11-23 12:39:45,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 12:39:45,867 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:39:45,867 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:39:45,867 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:39:45,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:35:30" (3/4) ... [2018-11-23 12:39:45,870 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 12:39:45,875 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 12:39:45,876 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-23 12:39:45,876 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 12:39:45,891 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 12:39:45,892 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 12:39:45,917 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((a15 <= 7 && 6 == a21 && a12 + 43 <= 0) || ((a12 <= 73282 && (!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 == 8)) || ((6 == a21 && 1 == a24) && 5 == a15)) || ((a12 <= 76 && a15 <= 7) && 1 == a24 && a21 == 7)) || ((1 == a24 && a12 <= 11) && 10 == a21)) || !(7 == \old(a21))) || (a12 <= 11 && (a15 == 8 && a24 == 1) && 9 == a21)) || (((1 == a24 && a21 == 7) && !(5 == a15)) && 19 <= a12)) || ((a21 == 10 && ((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 19 <= a12)) || ((((1 == a24 && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && a21 == 9) && 19 <= a12)) || !(1 == \old(a24))) || !(8 == \old(a15))) || ((((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && a21 == 8)) || ((7 == a15 && a21 == 10) && ((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15))) || (12 <= a12 && ((a12 <= 73282 && a15 <= 7) && a21 == 9) && 1 == a24)) || 6 == a15) || (((7 == a21 && a15 == 8) && a24 == 1) && a12 <= 11)) || !(0 == \old(a12) + 49)) || (((a12 <= 73282 && (!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && 10 == a21) && 5 == a15)) || (((1 == a24 && a12 + 43 <= 0) && a15 <= 7) && a21 == 9)) || ((((6 == a21 && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 19 <= a12)) || ((((1 == a24 && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 7 == a15) && a21 == 9)) || (7 == a15 && ((6 == a21 && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) [2018-11-23 12:39:45,994 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_04f6bd54-fa49-4f2c-873e-8d4e44caf3fd/bin-2019/utaipan/witness.graphml [2018-11-23 12:39:45,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:39:45,995 INFO L168 Benchmark]: Toolchain (without parser) took 257221.76 ms. Allocated memory was 1.0 GB in the beginning and 5.0 GB in the end (delta: 4.0 GB). Free memory was 957.5 MB in the beginning and 3.7 GB in the end (delta: -2.7 GB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-11-23 12:39:45,996 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:39:45,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.93 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 914.5 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-11-23 12:39:45,996 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 914.5 MB in the beginning and 1.1 GB in the end (delta: -208.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-23 12:39:45,996 INFO L168 Benchmark]: Boogie Preprocessor took 52.59 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: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2018-11-23 12:39:45,997 INFO L168 Benchmark]: RCFGBuilder took 1109.08 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: 124.4 MB). Peak memory consumption was 124.4 MB. Max. memory is 11.5 GB. [2018-11-23 12:39:45,997 INFO L168 Benchmark]: TraceAbstraction took 255404.17 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.8 GB). Free memory was 991.5 MB in the beginning and 3.8 GB in the end (delta: -2.8 GB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. [2018-11-23 12:39:45,997 INFO L168 Benchmark]: Witness Printer took 128.02 ms. Allocated memory is still 5.0 GB. Free memory was 3.8 GB in the beginning and 3.7 GB in the end (delta: 82.0 MB). Peak memory consumption was 82.0 MB. Max. memory is 11.5 GB. [2018-11-23 12:39:45,999 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 413.93 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 914.5 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 110.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 914.5 MB in the beginning and 1.1 GB in the end (delta: -208.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.59 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: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1109.08 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: 124.4 MB). Peak memory consumption was 124.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 255404.17 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.8 GB). Free memory was 991.5 MB in the beginning and 3.8 GB in the end (delta: -2.8 GB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. * Witness Printer took 128.02 ms. Allocated memory is still 5.0 GB. Free memory was 3.8 GB in the beginning and 3.7 GB in the end (delta: 82.0 MB). Peak memory consumption was 82.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((a15 <= 7 && 6 == a21 && a12 + 43 <= 0) || ((a12 <= 73282 && (!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 == 8)) || ((6 == a21 && 1 == a24) && 5 == a15)) || ((a12 <= 76 && a15 <= 7) && 1 == a24 && a21 == 7)) || ((1 == a24 && a12 <= 11) && 10 == a21)) || !(7 == \old(a21))) || (a12 <= 11 && (a15 == 8 && a24 == 1) && 9 == a21)) || (((1 == a24 && a21 == 7) && !(5 == a15)) && 19 <= a12)) || ((a21 == 10 && ((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 19 <= a12)) || ((((1 == a24 && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && a21 == 9) && 19 <= a12)) || !(1 == \old(a24))) || !(8 == \old(a15))) || ((((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && a21 == 8)) || ((7 == a15 && a21 == 10) && ((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15))) || (12 <= a12 && ((a12 <= 73282 && a15 <= 7) && a21 == 9) && 1 == a24)) || 6 == a15) || (((7 == a21 && a15 == 8) && a24 == 1) && a12 <= 11)) || !(0 == \old(a12) + 49)) || (((a12 <= 73282 && (!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && 10 == a21) && 5 == a15)) || (((1 == a24 && a12 + 43 <= 0) && a15 <= 7) && a21 == 9)) || ((((6 == a21 && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 19 <= a12)) || ((((1 == a24 && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 7 == a15) && a21 == 9)) || (7 == a15 && ((6 == a21 && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 255.3s OverallTime, 21 OverallIterations, 16 TraceHistogramMax, 115.3s AutomataDifference, 0.0s DeadEndRemovalTime, 8.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 2210 SDtfs, 53732 SDslu, 4555 SDs, 0 SdLazy, 67692 SolverSat, 7695 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.2s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 33589 GetRequests, 32889 SyntacticMatches, 19 SemanticMatches, 681 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11289 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18823occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 82.7s AbstIntTime, 17 AbstIntIterations, 4 AbstIntStrong, 0.9975518960372314 AbsIntWeakeningRatio, 0.07822533566841798 AbsIntAvgWeakeningVarsNumRemoved, 16.311150029188557 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 4651 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 619 PreInvPairs, 795 NumberOfFragments, 1504 HoareAnnotationTreeSize, 619 FomulaSimplifications, 11564869 FormulaSimplificationTreeSizeReduction, 2.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3345196 FormulaSimplificationTreeSizeReductionInter, 6.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 22.2s InterpolantComputationTime, 35012 NumberOfCodeBlocks, 35012 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 50439 ConstructedInterpolants, 0 QuantifiedInterpolants, 208426001 SizeOfPredicates, 41 NumberOfNonLiveVariables, 21336 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 47 InterpolantComputations, 4 PerfectInterpolantSequences, 178476/199500 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...