./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label11_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_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label11_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/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 8bc5807873c5a4343353326fda69b22e512eabea ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 23:51:20,264 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 23:51:20,265 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 23:51:20,274 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 23:51:20,274 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 23:51:20,275 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 23:51:20,276 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 23:51:20,277 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 23:51:20,278 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 23:51:20,278 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 23:51:20,279 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 23:51:20,279 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 23:51:20,280 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 23:51:20,280 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 23:51:20,281 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 23:51:20,281 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 23:51:20,282 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 23:51:20,283 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 23:51:20,284 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 23:51:20,285 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 23:51:20,286 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 23:51:20,287 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 23:51:20,288 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 23:51:20,288 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 23:51:20,288 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 23:51:20,289 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 23:51:20,290 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 23:51:20,290 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 23:51:20,291 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 23:51:20,292 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 23:51:20,292 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 23:51:20,292 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 23:51:20,292 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 23:51:20,292 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 23:51:20,293 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 23:51:20,294 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 23:51:20,294 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-22 23:51:20,304 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 23:51:20,304 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 23:51:20,305 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 23:51:20,305 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 23:51:20,305 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 23:51:20,305 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 23:51:20,305 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 23:51:20,306 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 23:51:20,306 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 23:51:20,306 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 23:51:20,306 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 23:51:20,306 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 23:51:20,306 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 23:51:20,307 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 23:51:20,307 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 23:51:20,307 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 23:51:20,307 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 23:51:20,307 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 23:51:20,307 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 23:51:20,307 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 23:51:20,308 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 23:51:20,308 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 23:51:20,308 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 23:51:20,308 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 23:51:20,308 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 23:51:20,308 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 23:51:20,308 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 23:51:20,309 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 23:51:20,309 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 23:51:20,309 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 23:51:20,309 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 23:51:20,309 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 23:51:20,309 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 23:51:20,309 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 23:51:20,309 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 23:51:20,310 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 23:51:20,310 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 23:51:20,310 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_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/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 -> 8bc5807873c5a4343353326fda69b22e512eabea [2018-11-22 23:51:20,333 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 23:51:20,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 23:51:20,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 23:51:20,347 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 23:51:20,347 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 23:51:20,348 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label11_true-unreach-call_false-termination.c [2018-11-22 23:51:20,392 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/bin-2019/utaipan/data/7f4c4cb0e/9dca1e827f564541a4f14766c377a4fe/FLAG40a458598 [2018-11-22 23:51:20,801 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 23:51:20,802 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/sv-benchmarks/c/eca-rers2012/Problem02_label11_true-unreach-call_false-termination.c [2018-11-22 23:51:20,811 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/bin-2019/utaipan/data/7f4c4cb0e/9dca1e827f564541a4f14766c377a4fe/FLAG40a458598 [2018-11-22 23:51:21,164 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/bin-2019/utaipan/data/7f4c4cb0e/9dca1e827f564541a4f14766c377a4fe [2018-11-22 23:51:21,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 23:51:21,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 23:51:21,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 23:51:21,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 23:51:21,171 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 23:51:21,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:51:21" (1/1) ... [2018-11-22 23:51:21,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb4fcbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:51:21, skipping insertion in model container [2018-11-22 23:51:21,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:51:21" (1/1) ... [2018-11-22 23:51:21,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 23:51:21,219 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 23:51:21,444 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:51:21,447 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 23:51:21,509 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:51:21,522 INFO L195 MainTranslator]: Completed translation [2018-11-22 23:51:21,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:51:21 WrapperNode [2018-11-22 23:51:21,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 23:51:21,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 23:51:21,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 23:51:21,523 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 23:51:21,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:51:21" (1/1) ... [2018-11-22 23:51:21,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:51:21" (1/1) ... [2018-11-22 23:51:21,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 23:51:21,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 23:51:21,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 23:51:21,600 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 23:51:21,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:51:21" (1/1) ... [2018-11-22 23:51:21,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:51:21" (1/1) ... [2018-11-22 23:51:21,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:51:21" (1/1) ... [2018-11-22 23:51:21,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:51:21" (1/1) ... [2018-11-22 23:51:21,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:51:21" (1/1) ... [2018-11-22 23:51:21,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:51:21" (1/1) ... [2018-11-22 23:51:21,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:51:21" (1/1) ... [2018-11-22 23:51:21,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 23:51:21,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 23:51:21,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 23:51:21,651 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 23:51:21,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:51:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/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 [2018-11-22 23:51:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-22 23:51:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 23:51:21,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 23:51:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-22 23:51:21,702 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-22 23:51:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 23:51:21,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 23:51:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 23:51:21,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 23:51:22,405 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 23:51:22,405 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-22 23:51:22,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:51:22 BoogieIcfgContainer [2018-11-22 23:51:22,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 23:51:22,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 23:51:22,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 23:51:22,409 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 23:51:22,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:51:21" (1/3) ... [2018-11-22 23:51:22,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d85918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:51:22, skipping insertion in model container [2018-11-22 23:51:22,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:51:21" (2/3) ... [2018-11-22 23:51:22,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d85918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:51:22, skipping insertion in model container [2018-11-22 23:51:22,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:51:22" (3/3) ... [2018-11-22 23:51:22,412 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label11_true-unreach-call_false-termination.c [2018-11-22 23:51:22,418 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 23:51:22,423 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 23:51:22,432 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 23:51:22,455 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 23:51:22,455 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 23:51:22,455 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 23:51:22,455 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 23:51:22,455 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 23:51:22,455 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 23:51:22,455 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 23:51:22,456 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 23:51:22,472 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2018-11-22 23:51:22,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-11-22 23:51:22,480 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:51:22,481 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:51:22,483 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:51:22,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:22,486 INFO L82 PathProgramCache]: Analyzing trace with hash 341704158, now seen corresponding path program 1 times [2018-11-22 23:51:22,488 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:51:22,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:22,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:22,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:22,518 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:51:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:51:22,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:51:22,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 23:51:22,781 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:51:22,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 23:51:22,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 23:51:22,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 23:51:22,795 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2018-11-22 23:51:23,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:51:23,355 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2018-11-22 23:51:23,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 23:51:23,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2018-11-22 23:51:23,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:51:23,365 INFO L225 Difference]: With dead ends: 615 [2018-11-22 23:51:23,365 INFO L226 Difference]: Without dead ends: 377 [2018-11-22 23:51:23,369 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 23:51:23,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2018-11-22 23:51:23,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2018-11-22 23:51:23,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2018-11-22 23:51:23,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 619 transitions. [2018-11-22 23:51:23,417 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 619 transitions. Word has length 114 [2018-11-22 23:51:23,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:51:23,417 INFO L480 AbstractCegarLoop]: Abstraction has 377 states and 619 transitions. [2018-11-22 23:51:23,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 23:51:23,418 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 619 transitions. [2018-11-22 23:51:23,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-11-22 23:51:23,427 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:51:23,428 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:51:23,428 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:51:23,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:23,428 INFO L82 PathProgramCache]: Analyzing trace with hash 2131456323, now seen corresponding path program 1 times [2018-11-22 23:51:23,429 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:51:23,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:23,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:23,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:23,430 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:51:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:23,535 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:51:23,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:51:23,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 23:51:23,535 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:51:23,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:51:23,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:51:23,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:51:23,537 INFO L87 Difference]: Start difference. First operand 377 states and 619 transitions. Second operand 6 states. [2018-11-22 23:51:24,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:51:24,202 INFO L93 Difference]: Finished difference Result 1220 states and 2085 transitions. [2018-11-22 23:51:24,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-22 23:51:24,203 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-11-22 23:51:24,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:51:24,208 INFO L225 Difference]: With dead ends: 1220 [2018-11-22 23:51:24,208 INFO L226 Difference]: Without dead ends: 849 [2018-11-22 23:51:24,210 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-22 23:51:24,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2018-11-22 23:51:24,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 819. [2018-11-22 23:51:24,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2018-11-22 23:51:24,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1288 transitions. [2018-11-22 23:51:24,244 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1288 transitions. Word has length 129 [2018-11-22 23:51:24,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:51:24,245 INFO L480 AbstractCegarLoop]: Abstraction has 819 states and 1288 transitions. [2018-11-22 23:51:24,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:51:24,245 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1288 transitions. [2018-11-22 23:51:24,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-22 23:51:24,248 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:51:24,248 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:51:24,249 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:51:24,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:24,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1872771192, now seen corresponding path program 1 times [2018-11-22 23:51:24,249 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:51:24,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:24,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:24,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:24,250 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:51:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:24,356 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-22 23:51:24,357 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:24,357 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:51:24,358 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-11-22 23:51:24,360 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-22 23:51:24,393 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:51:24,394 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:51:24,689 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 23:51:24,690 INFO L272 AbstractInterpreter]: Visited 115 different actions 115 times. Never merged. Never widened. Performed 1284 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1284 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 38 variables. [2018-11-22 23:51:24,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:24,716 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 23:51:24,988 INFO L227 lantSequenceWeakener]: Weakened 128 states. On average, predicates are now at 80.9% of their original sizes. [2018-11-22 23:51:24,988 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 23:51:25,046 INFO L415 sIntCurrentIteration]: We unified 136 AI predicates to 136 [2018-11-22 23:51:25,046 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 23:51:25,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:51:25,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-22 23:51:25,047 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:51:25,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:51:25,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:51:25,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:51:25,049 INFO L87 Difference]: Start difference. First operand 819 states and 1288 transitions. Second operand 6 states. [2018-11-22 23:51:27,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:51:27,637 INFO L93 Difference]: Finished difference Result 1780 states and 2795 transitions. [2018-11-22 23:51:27,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 23:51:27,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-11-22 23:51:27,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:51:27,639 INFO L225 Difference]: With dead ends: 1780 [2018-11-22 23:51:27,639 INFO L226 Difference]: Without dead ends: 967 [2018-11-22 23:51:27,641 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-22 23:51:27,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2018-11-22 23:51:27,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 965. [2018-11-22 23:51:27,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2018-11-22 23:51:27,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1441 transitions. [2018-11-22 23:51:27,657 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1441 transitions. Word has length 137 [2018-11-22 23:51:27,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:51:27,657 INFO L480 AbstractCegarLoop]: Abstraction has 965 states and 1441 transitions. [2018-11-22 23:51:27,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:51:27,657 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1441 transitions. [2018-11-22 23:51:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-11-22 23:51:27,659 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:51:27,660 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:51:27,660 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:51:27,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:27,660 INFO L82 PathProgramCache]: Analyzing trace with hash -892204617, now seen corresponding path program 1 times [2018-11-22 23:51:27,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:51:27,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:27,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:27,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:27,661 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:51:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:27,760 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-22 23:51:27,760 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:27,760 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:51:27,760 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-11-22 23:51:27,761 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-22 23:51:27,765 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:51:27,765 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:51:28,006 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 23:51:28,006 INFO L272 AbstractInterpreter]: Visited 119 different actions 352 times. Merged at 6 different actions 15 times. Never widened. Performed 4019 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4019 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-22 23:51:28,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:28,016 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 23:51:28,201 INFO L227 lantSequenceWeakener]: Weakened 143 states. On average, predicates are now at 84.52% of their original sizes. [2018-11-22 23:51:28,201 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 23:51:28,242 INFO L415 sIntCurrentIteration]: We unified 145 AI predicates to 145 [2018-11-22 23:51:28,242 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 23:51:28,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:51:28,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2018-11-22 23:51:28,243 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:51:28,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-22 23:51:28,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-22 23:51:28,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-22 23:51:28,244 INFO L87 Difference]: Start difference. First operand 965 states and 1441 transitions. Second operand 9 states. [2018-11-22 23:51:30,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:51:30,779 INFO L93 Difference]: Finished difference Result 2380 states and 3567 transitions. [2018-11-22 23:51:30,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-22 23:51:30,779 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 146 [2018-11-22 23:51:30,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:51:30,784 INFO L225 Difference]: With dead ends: 2380 [2018-11-22 23:51:30,784 INFO L226 Difference]: Without dead ends: 1421 [2018-11-22 23:51:30,787 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-22 23:51:30,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2018-11-22 23:51:30,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1344. [2018-11-22 23:51:30,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1344 states. [2018-11-22 23:51:30,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1922 transitions. [2018-11-22 23:51:30,821 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1922 transitions. Word has length 146 [2018-11-22 23:51:30,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:51:30,821 INFO L480 AbstractCegarLoop]: Abstraction has 1344 states and 1922 transitions. [2018-11-22 23:51:30,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-22 23:51:30,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1922 transitions. [2018-11-22 23:51:30,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-22 23:51:30,824 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:51:30,824 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:51:30,825 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:51:30,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:30,825 INFO L82 PathProgramCache]: Analyzing trace with hash -937750809, now seen corresponding path program 1 times [2018-11-22 23:51:30,825 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:51:30,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:30,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:30,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:30,826 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:51:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:30,903 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:51:30,903 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:30,903 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:51:30,904 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-11-22 23:51:30,904 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-22 23:51:30,907 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:51:30,907 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:51:31,054 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 23:51:31,054 INFO L272 AbstractInterpreter]: Visited 118 different actions 230 times. Merged at 4 different actions 4 times. Never widened. Performed 2547 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2547 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-11-22 23:51:31,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:31,060 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 23:51:31,204 INFO L227 lantSequenceWeakener]: Weakened 142 states. On average, predicates are now at 80.9% of their original sizes. [2018-11-22 23:51:31,204 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 23:51:31,264 INFO L415 sIntCurrentIteration]: We unified 144 AI predicates to 144 [2018-11-22 23:51:31,264 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 23:51:31,265 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:51:31,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-22 23:51:31,265 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:51:31,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-22 23:51:31,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-22 23:51:31,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:51:31,266 INFO L87 Difference]: Start difference. First operand 1344 states and 1922 transitions. Second operand 10 states. [2018-11-22 23:51:33,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:51:33,514 INFO L93 Difference]: Finished difference Result 2978 states and 4231 transitions. [2018-11-22 23:51:33,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-22 23:51:33,515 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2018-11-22 23:51:33,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:51:33,518 INFO L225 Difference]: With dead ends: 2978 [2018-11-22 23:51:33,519 INFO L226 Difference]: Without dead ends: 1640 [2018-11-22 23:51:33,521 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 154 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-11-22 23:51:33,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2018-11-22 23:51:33,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1637. [2018-11-22 23:51:33,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1637 states. [2018-11-22 23:51:33,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1637 states to 1637 states and 2262 transitions. [2018-11-22 23:51:33,544 INFO L78 Accepts]: Start accepts. Automaton has 1637 states and 2262 transitions. Word has length 145 [2018-11-22 23:51:33,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:51:33,545 INFO L480 AbstractCegarLoop]: Abstraction has 1637 states and 2262 transitions. [2018-11-22 23:51:33,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-22 23:51:33,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1637 states and 2262 transitions. [2018-11-22 23:51:33,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-22 23:51:33,547 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:51:33,548 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:51:33,548 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:51:33,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:33,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1845816671, now seen corresponding path program 1 times [2018-11-22 23:51:33,548 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:51:33,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:33,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:33,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:33,549 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:51:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:33,673 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:51:33,673 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:33,673 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:51:33,673 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-11-22 23:51:33,674 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-22 23:51:33,678 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:51:33,678 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:51:33,827 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:51:33,827 INFO L272 AbstractInterpreter]: Visited 119 different actions 348 times. Merged at 6 different actions 13 times. Never widened. Performed 4193 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4193 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-11-22 23:51:33,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:33,836 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:51:33,836 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:33,837 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/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 [2018-11-22 23:51:33,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:33,853 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:51:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:33,903 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:51:33,955 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-22 23:51:33,955 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:51:34,002 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-22 23:51:34,018 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:51:34,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-11-22 23:51:34,018 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:51:34,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 23:51:34,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 23:51:34,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:51:34,019 INFO L87 Difference]: Start difference. First operand 1637 states and 2262 transitions. Second operand 3 states. [2018-11-22 23:51:34,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:51:34,381 INFO L93 Difference]: Finished difference Result 4401 states and 6368 transitions. [2018-11-22 23:51:34,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 23:51:34,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2018-11-22 23:51:34,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:51:34,391 INFO L225 Difference]: With dead ends: 4401 [2018-11-22 23:51:34,391 INFO L226 Difference]: Without dead ends: 2770 [2018-11-22 23:51:34,396 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 299 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:51:34,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2018-11-22 23:51:34,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2769. [2018-11-22 23:51:34,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2769 states. [2018-11-22 23:51:34,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3701 transitions. [2018-11-22 23:51:34,454 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3701 transitions. Word has length 149 [2018-11-22 23:51:34,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:51:34,454 INFO L480 AbstractCegarLoop]: Abstraction has 2769 states and 3701 transitions. [2018-11-22 23:51:34,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 23:51:34,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3701 transitions. [2018-11-22 23:51:34,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-11-22 23:51:34,460 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:51:34,460 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:51:34,460 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:51:34,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:34,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1715495925, now seen corresponding path program 1 times [2018-11-22 23:51:34,461 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:51:34,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:34,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:34,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:34,461 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:51:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:34,546 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:51:34,546 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:34,546 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:51:34,547 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-11-22 23:51:34,547 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-22 23:51:34,549 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:51:34,549 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:51:34,780 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 23:51:34,780 INFO L272 AbstractInterpreter]: Visited 118 different actions 349 times. Merged at 6 different actions 15 times. Never widened. Performed 4158 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4158 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-22 23:51:34,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:34,782 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 23:51:34,922 INFO L227 lantSequenceWeakener]: Weakened 159 states. On average, predicates are now at 84.38% of their original sizes. [2018-11-22 23:51:34,923 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 23:51:34,958 INFO L415 sIntCurrentIteration]: We unified 161 AI predicates to 161 [2018-11-22 23:51:34,958 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 23:51:34,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:51:34,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-22 23:51:34,959 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:51:34,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-22 23:51:34,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-22 23:51:34,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:51:34,959 INFO L87 Difference]: Start difference. First operand 2769 states and 3701 transitions. Second operand 10 states. [2018-11-22 23:51:38,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:51:38,570 INFO L93 Difference]: Finished difference Result 8550 states and 12030 transitions. [2018-11-22 23:51:38,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-22 23:51:38,571 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2018-11-22 23:51:38,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:51:38,583 INFO L225 Difference]: With dead ends: 8550 [2018-11-22 23:51:38,583 INFO L226 Difference]: Without dead ends: 5787 [2018-11-22 23:51:38,590 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 173 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2018-11-22 23:51:38,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5787 states. [2018-11-22 23:51:38,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5787 to 5731. [2018-11-22 23:51:38,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5731 states. [2018-11-22 23:51:38,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5731 states to 5731 states and 7508 transitions. [2018-11-22 23:51:38,666 INFO L78 Accepts]: Start accepts. Automaton has 5731 states and 7508 transitions. Word has length 162 [2018-11-22 23:51:38,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:51:38,667 INFO L480 AbstractCegarLoop]: Abstraction has 5731 states and 7508 transitions. [2018-11-22 23:51:38,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-22 23:51:38,667 INFO L276 IsEmpty]: Start isEmpty. Operand 5731 states and 7508 transitions. [2018-11-22 23:51:38,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-11-22 23:51:38,673 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:51:38,673 INFO L402 BasicCegarLoop]: trace histogram [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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:51:38,673 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:51:38,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:38,674 INFO L82 PathProgramCache]: Analyzing trace with hash -951045989, now seen corresponding path program 1 times [2018-11-22 23:51:38,674 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:51:38,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:38,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:38,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:38,674 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:51:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:38,742 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 77 proven. 28 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-22 23:51:38,742 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:38,742 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:51:38,743 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-11-22 23:51:38,743 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [99], [100], [104], [107], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-22 23:51:38,745 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:51:38,745 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:51:38,946 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:51:38,947 INFO L272 AbstractInterpreter]: Visited 120 different actions 472 times. Merged at 7 different actions 25 times. Never widened. Performed 5777 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5777 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 6 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-22 23:51:38,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:38,956 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:51:38,956 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:38,956 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/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 [2018-11-22 23:51:38,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:38,963 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:51:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:39,010 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:51:39,069 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 104 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-22 23:51:39,070 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:51:39,125 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 104 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-22 23:51:39,140 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:51:39,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2018-11-22 23:51:39,140 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:51:39,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-22 23:51:39,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-22 23:51:39,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-11-22 23:51:39,141 INFO L87 Difference]: Start difference. First operand 5731 states and 7508 transitions. Second operand 9 states. [2018-11-22 23:51:41,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:51:41,151 INFO L93 Difference]: Finished difference Result 18366 states and 25904 transitions. [2018-11-22 23:51:41,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-22 23:51:41,152 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 185 [2018-11-22 23:51:41,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:51:41,189 INFO L225 Difference]: With dead ends: 18366 [2018-11-22 23:51:41,189 INFO L226 Difference]: Without dead ends: 11951 [2018-11-22 23:51:41,214 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=266, Invalid=994, Unknown=0, NotChecked=0, Total=1260 [2018-11-22 23:51:41,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11951 states. [2018-11-22 23:51:41,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11951 to 11280. [2018-11-22 23:51:41,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11280 states. [2018-11-22 23:51:41,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11280 states to 11280 states and 14145 transitions. [2018-11-22 23:51:41,424 INFO L78 Accepts]: Start accepts. Automaton has 11280 states and 14145 transitions. Word has length 185 [2018-11-22 23:51:41,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:51:41,424 INFO L480 AbstractCegarLoop]: Abstraction has 11280 states and 14145 transitions. [2018-11-22 23:51:41,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-22 23:51:41,424 INFO L276 IsEmpty]: Start isEmpty. Operand 11280 states and 14145 transitions. [2018-11-22 23:51:41,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-11-22 23:51:41,441 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:51:41,441 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:51:41,441 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:51:41,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:41,441 INFO L82 PathProgramCache]: Analyzing trace with hash 226148281, now seen corresponding path program 1 times [2018-11-22 23:51:41,442 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:51:41,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:41,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:41,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:41,442 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:51:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:41,531 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 109 proven. 32 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-11-22 23:51:41,531 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:41,531 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:51:41,532 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 219 with the following transitions: [2018-11-22 23:51:41,533 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [21], [22], [25], [26], [30], [34], [38], [42], [53], [56], [61], [63], [64], [68], [72], [76], [80], [84], [88], [92], [96], [99], [100], [104], [107], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-22 23:51:41,535 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:51:41,535 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:51:41,767 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:51:41,767 INFO L272 AbstractInterpreter]: Visited 124 different actions 499 times. Merged at 9 different actions 40 times. Widened at 1 different actions 2 times. Performed 5982 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5982 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 11 fixpoints after 2 different actions. Largest state had 38 variables. [2018-11-22 23:51:41,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:41,772 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:51:41,772 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:41,772 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/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 [2018-11-22 23:51:41,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:41,778 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:51:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:41,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:51:41,864 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2018-11-22 23:51:41,864 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:51:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 109 proven. 32 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-11-22 23:51:41,934 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:51:41,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2018-11-22 23:51:41,935 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:51:41,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-22 23:51:41,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-22 23:51:41,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:51:41,936 INFO L87 Difference]: Start difference. First operand 11280 states and 14145 transitions. Second operand 8 states. [2018-11-22 23:51:43,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:51:43,242 INFO L93 Difference]: Finished difference Result 28684 states and 36370 transitions. [2018-11-22 23:51:43,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-22 23:51:43,243 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 218 [2018-11-22 23:51:43,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:51:43,288 INFO L225 Difference]: With dead ends: 28684 [2018-11-22 23:51:43,288 INFO L226 Difference]: Without dead ends: 16261 [2018-11-22 23:51:43,314 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 440 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2018-11-22 23:51:43,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16261 states. [2018-11-22 23:51:43,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16261 to 16181. [2018-11-22 23:51:43,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16181 states. [2018-11-22 23:51:43,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16181 states to 16181 states and 19612 transitions. [2018-11-22 23:51:43,584 INFO L78 Accepts]: Start accepts. Automaton has 16181 states and 19612 transitions. Word has length 218 [2018-11-22 23:51:43,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:51:43,585 INFO L480 AbstractCegarLoop]: Abstraction has 16181 states and 19612 transitions. [2018-11-22 23:51:43,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-22 23:51:43,585 INFO L276 IsEmpty]: Start isEmpty. Operand 16181 states and 19612 transitions. [2018-11-22 23:51:43,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-11-22 23:51:43,603 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:51:43,603 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:51:43,603 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:51:43,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:43,604 INFO L82 PathProgramCache]: Analyzing trace with hash 85410939, now seen corresponding path program 1 times [2018-11-22 23:51:43,604 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:51:43,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:43,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:43,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:43,605 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:51:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:43,822 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 121 proven. 76 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-11-22 23:51:43,823 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:43,823 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:51:43,823 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-11-22 23:51:43,824 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [45], [50], [52], [53], [56], [61], [63], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [107], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-22 23:51:43,826 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:51:43,826 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:51:43,979 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:51:43,979 INFO L272 AbstractInterpreter]: Visited 126 different actions 367 times. Merged at 9 different actions 19 times. Never widened. Performed 4317 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4317 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 6 fixpoints after 2 different actions. Largest state had 38 variables. [2018-11-22 23:51:43,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:43,981 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:51:43,981 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:43,981 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/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 [2018-11-22 23:51:43,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:43,987 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:51:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:44,042 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:51:44,095 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-22 23:51:44,095 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:51:44,158 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 135 proven. 34 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-22 23:51:44,173 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:51:44,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 17 [2018-11-22 23:51:44,173 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:51:44,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-22 23:51:44,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-22 23:51:44,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2018-11-22 23:51:44,174 INFO L87 Difference]: Start difference. First operand 16181 states and 19612 transitions. Second operand 15 states. [2018-11-22 23:51:45,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:51:45,630 INFO L93 Difference]: Finished difference Result 29444 states and 35731 transitions. [2018-11-22 23:51:45,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-22 23:51:45,630 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 220 [2018-11-22 23:51:45,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:51:45,648 INFO L225 Difference]: With dead ends: 29444 [2018-11-22 23:51:45,649 INFO L226 Difference]: Without dead ends: 9417 [2018-11-22 23:51:45,670 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 450 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=277, Invalid=715, Unknown=0, NotChecked=0, Total=992 [2018-11-22 23:51:45,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9417 states. [2018-11-22 23:51:45,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9417 to 8764. [2018-11-22 23:51:45,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8764 states. [2018-11-22 23:51:45,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8764 states to 8764 states and 10200 transitions. [2018-11-22 23:51:45,795 INFO L78 Accepts]: Start accepts. Automaton has 8764 states and 10200 transitions. Word has length 220 [2018-11-22 23:51:45,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:51:45,795 INFO L480 AbstractCegarLoop]: Abstraction has 8764 states and 10200 transitions. [2018-11-22 23:51:45,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-22 23:51:45,795 INFO L276 IsEmpty]: Start isEmpty. Operand 8764 states and 10200 transitions. [2018-11-22 23:51:45,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-11-22 23:51:45,804 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:51:45,804 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-22 23:51:45,804 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:51:45,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:45,804 INFO L82 PathProgramCache]: Analyzing trace with hash 638517494, now seen corresponding path program 1 times [2018-11-22 23:51:45,805 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:51:45,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:45,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:45,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:51:45,805 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:51:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 70 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:51:45,977 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:45,977 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:51:45,977 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-11-22 23:51:45,977 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [123], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [324], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-22 23:51:45,979 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:51:45,979 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:51:46,131 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:51:46,131 INFO L272 AbstractInterpreter]: Visited 119 different actions 350 times. Merged at 6 different actions 15 times. Never widened. Performed 4264 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4264 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-22 23:51:46,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:51:46,139 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:51:46,139 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:51:46,140 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/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 [2018-11-22 23:51:46,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:51:46,147 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:51:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:51:46,186 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:51:46,214 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-22 23:51:46,214 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:51:46,252 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-22 23:51:46,267 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:51:46,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-11-22 23:51:46,267 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:51:46,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 23:51:46,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 23:51:46,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-22 23:51:46,268 INFO L87 Difference]: Start difference. First operand 8764 states and 10200 transitions. Second operand 3 states. [2018-11-22 23:51:46,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:51:46,511 INFO L93 Difference]: Finished difference Result 17111 states and 19957 transitions. [2018-11-22 23:51:46,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 23:51:46,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2018-11-22 23:51:46,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:51:46,512 INFO L225 Difference]: With dead ends: 17111 [2018-11-22 23:51:46,512 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 23:51:46,526 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 440 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-22 23:51:46,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 23:51:46,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 23:51:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 23:51:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 23:51:46,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 220 [2018-11-22 23:51:46,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:51:46,527 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:51:46,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 23:51:46,527 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 23:51:46,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 23:51:46,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-22 23:51:46,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,743 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,780 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,788 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 109 [2018-11-22 23:51:46,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,811 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,813 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:46,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:51:47,754 WARN L180 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 93 [2018-11-22 23:51:47,966 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 61 [2018-11-22 23:51:48,129 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2018-11-22 23:51:48,131 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-22 23:51:48,131 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a28~0)| ~a28~0) (= |old(~a19~0)| ~a19~0) (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a25~0 |old(~a25~0)|)) [2018-11-22 23:51:48,131 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-22 23:51:48,131 INFO L448 ceAbstractionStarter]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,131 INFO L448 ceAbstractionStarter]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,131 INFO L448 ceAbstractionStarter]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,131 INFO L448 ceAbstractionStarter]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,131 INFO L448 ceAbstractionStarter]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,131 INFO L448 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2018-11-22 23:51:48,131 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L565(line 565) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L532(line 532) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L499(line 499) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 496) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L433(line 433) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 210) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,132 INFO L448 ceAbstractionStarter]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L568(line 568) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L535(line 535) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L502(line 502) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L469(line 469) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L436(line 436) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 246) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L338(lines 338 347) no Hoare annotation was computed. [2018-11-22 23:51:48,133 INFO L448 ceAbstractionStarter]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 80) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L571(line 571) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L538(line 538) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L505(line 505) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L472(line 472) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2018-11-22 23:51:48,134 INFO L448 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L574(line 574) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L541(line 541) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L508(line 508) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L475(line 475) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L442(line 442) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2018-11-22 23:51:48,135 INFO L448 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L511(line 511) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L478(line 478) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L445(line 445) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2018-11-22 23:51:48,136 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 416) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L381(lines 381 387) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 326) no Hoare annotation was computed. [2018-11-22 23:51:48,137 INFO L448 ceAbstractionStarter]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L580(line 580) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L514(line 514) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L481(line 481) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L415(line 415) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,138 INFO L448 ceAbstractionStarter]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L550(line 550) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L517(line 517) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L451(line 451) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L418(line 418) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2018-11-22 23:51:48,139 INFO L448 ceAbstractionStarter]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L553(line 553) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L520(line 520) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L487(line 487) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L454(line 454) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L421(line 421) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2018-11-22 23:51:48,140 INFO L448 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2018-11-22 23:51:48,141 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2018-11-22 23:51:48,141 INFO L448 ceAbstractionStarter]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,141 INFO L448 ceAbstractionStarter]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,141 INFO L448 ceAbstractionStarter]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,141 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse24 (= ~a17~0 8)) (.cse11 (= ~a19~0 1))) (let ((.cse13 (= 0 |old(~a17~0)|)) (.cse0 (not (= 1 |old(~a25~0)|))) (.cse8 (not (= 1 ~a21~0))) (.cse14 (not (= 1 |old(~a19~0)|))) (.cse25 (not (= 8 |old(~a17~0)|))) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse3 (= |old(~a28~0)| ~a28~0)) (.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse26 (let ((.cse28 (not (= ~a28~0 0))) (.cse29 (= ~a21~0 1))) (or (and .cse28 .cse11 .cse29 (= ~a25~0 1)) (and (= ~a11~0 0) .cse28 .cse24 .cse11 .cse29))))) (let ((.cse17 (and .cse2 .cse3 .cse5 .cse26)) (.cse7 (< 10 |old(~a28~0)|)) (.cse15 (< |old(~a28~0)| 10)) (.cse9 (<= 10 ~a28~0)) (.cse10 (<= ~a28~0 10)) (.cse23 (< 7 |old(~a28~0)|)) (.cse18 (= |old(~a11~0)| |old(~a19~0)|)) (.cse16 (= |calculate_output_#in~input| 0)) (.cse19 (let ((.cse27 (= 0 |old(~a28~0)|))) (and (or .cse8 .cse13 .cse0 .cse14 .cse27) (or .cse8 .cse14 .cse27 (not (= 0 |old(~a11~0)|)) .cse25)))) (.cse21 (<= ~a28~0 |old(~a28~0)|)) (.cse12 (not (= ~a17~0 0))) (.cse22 (= 7 ~a17~0)) (.cse20 (not (= 7 |old(~a17~0)|))) (.cse4 (= |old(~a19~0)| ~a19~0)) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse1 (not (= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6)) (or .cse7 .cse8 (and .cse2 .cse9 .cse10 .cse11 .cse12 .cse6) .cse13 .cse14 .cse15 .cse16) (or .cse17 .cse16 .cse18 .cse19 .cse20) (or (or .cse0 .cse18 .cse20) (and .cse4 .cse21 .cse2 .cse22 (<= 9 ~a28~0) .cse6) (< |old(~a28~0)| 9)) (or .cse23 .cse17 .cse16 .cse19 .cse20) (or .cse8 .cse24 .cse14 .cse25 .cse16) (or .cse7 .cse15 (and .cse4 .cse2 .cse9 .cse22 .cse10 .cse6) .cse20) (or .cse23 .cse18 .cse16 .cse19 (and .cse2 .cse21 .cse26 .cse12 .cse6)) (or (< |old(~a28~0)| 11) (and .cse3 .cse4 .cse2 .cse22 .cse6) .cse20) (or (and .cse3 .cse4 .cse2 .cse5 .cse6) (= 10 |old(~a28~0)|) .cse1))))) [2018-11-22 23:51:48,141 INFO L448 ceAbstractionStarter]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,141 INFO L448 ceAbstractionStarter]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,141 INFO L448 ceAbstractionStarter]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,141 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2018-11-22 23:51:48,141 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2018-11-22 23:51:48,141 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L589(line 589) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L490(line 490) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L424(line 424) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,142 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L592(line 592) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L559(line 559) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L526(line 526) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L493(line 493) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L460(line 460) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L427(line 427) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L262(lines 262 274) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,143 INFO L448 ceAbstractionStarter]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L595(line 595) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L562(line 562) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L529(line 529) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L496(line 496) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L463(line 463) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L430(line 430) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L298(lines 298 307) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2018-11-22 23:51:48,144 INFO L448 ceAbstractionStarter]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2018-11-22 23:51:48,145 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2018-11-22 23:51:48,145 INFO L448 ceAbstractionStarter]: For program point L332(lines 332 335) no Hoare annotation was computed. [2018-11-22 23:51:48,145 INFO L448 ceAbstractionStarter]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2018-11-22 23:51:48,145 INFO L448 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2018-11-22 23:51:48,145 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2018-11-22 23:51:48,145 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-22 23:51:48,145 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a11~0 0) (= ~a25~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7) (= ~a21~0 1)) [2018-11-22 23:51:48,145 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-22 23:51:48,145 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-22 23:51:48,145 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (not (= 1 |old(~a19~0)|)) (not (= 0 |old(~a11~0)|)) (not (= 8 |old(~a17~0)|)) (and (= ~a11~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7) (= ~a25~0 |old(~a25~0)|)) (not (= 0 |old(~a25~0)|))) [2018-11-22 23:51:48,145 INFO L444 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (not (= ~a17~0 0))) (.cse3 (= ~a19~0 1))) (let ((.cse0 (= |old(~a17~0)| ~a17~0)) (.cse2 (<= 10 ~a28~0)) (.cse5 (= 7 ~a17~0)) (.cse1 (= 1 ~a25~0)) (.cse6 (<= ~a28~0 7)) (.cse8 (not (= ~a19~0 ~a11~0))) (.cse7 (let ((.cse9 (not (= ~a28~0 0))) (.cse10 (= ~a21~0 1))) (or (and .cse9 .cse3 .cse10 (= ~a25~0 1) .cse4) (and (= ~a11~0 0) .cse9 (= ~a17~0 8) .cse3 .cse10))))) (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (and .cse0 .cse1) (not (= 0 |old(~a11~0)|)) (and .cse2 (<= ~a28~0 10) .cse3 .cse4) (not (= 0 |old(~a25~0)|)) (and .cse0 (not (= ~a28~0 10))) (and .cse2 .cse5) (and .cse6 .cse5 .cse7) (and .cse5 .cse8 .cse7) (and .cse5 .cse1 (<= 9 ~a28~0) .cse8) (and .cse6 .cse8 .cse7) (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|))))) [2018-11-22 23:51:48,145 INFO L448 ceAbstractionStarter]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2018-11-22 23:51:48,145 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2018-11-22 23:51:48,146 INFO L444 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (let ((.cse5 (not (= ~a17~0 0))) (.cse4 (= ~a19~0 1))) (let ((.cse0 (= |old(~a17~0)| ~a17~0)) (.cse3 (<= 10 ~a28~0)) (.cse1 (= 1 ~a25~0)) (.cse7 (not (= ~a19~0 ~a11~0))) (.cse2 (not (= main_~input~0 0))) (.cse6 (<= ~a28~0 7)) (.cse9 (= 7 ~a17~0)) (.cse8 (let ((.cse10 (not (= ~a28~0 0))) (.cse11 (= ~a21~0 1))) (or (and .cse10 .cse4 .cse11 (= ~a25~0 1) .cse5) (and (= ~a11~0 0) .cse10 (= ~a17~0 8) .cse4 .cse11))))) (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (and .cse0 .cse1) (not (= 0 |old(~a11~0)|)) (and .cse2 .cse3 (<= ~a28~0 10) .cse4 .cse5) (and .cse2 .cse6 .cse7 .cse8) (not (= 0 |old(~a25~0)|)) (and .cse0 (not (= ~a28~0 10))) (and .cse3 .cse9) (and .cse9 .cse1 (<= 9 ~a28~0) .cse7) (not (= 1 |old(~a19~0)|)) (and .cse2 .cse9 .cse7 .cse8) (not (= 8 |old(~a17~0)|)) (and .cse2 .cse6 .cse9 .cse8)))) [2018-11-22 23:51:48,146 INFO L448 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2018-11-22 23:51:48,146 INFO L448 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2018-11-22 23:51:48,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 11:51:48 BoogieIcfgContainer [2018-11-22 23:51:48,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 23:51:48,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 23:51:48,155 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 23:51:48,155 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 23:51:48,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:51:22" (3/4) ... [2018-11-22 23:51:48,158 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 23:51:48,163 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-22 23:51:48,163 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-22 23:51:48,163 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-22 23:51:48,172 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-22 23:51:48,173 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-22 23:51:48,200 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((!(1 == a21) || !(7 == \old(a28))) || (\old(a17) == a17 && 1 == a25)) || !(0 == \old(a11))) || (((10 <= a28 && a28 <= 10) && a19 == 1) && !(a17 == 0))) || !(0 == \old(a25))) || (\old(a17) == a17 && !(a28 == 10))) || (10 <= a28 && 7 == a17)) || ((a28 <= 7 && 7 == a17) && (((((!(a28 == 0) && a19 == 1) && a21 == 1) && a25 == 1) && !(a17 == 0)) || ((((a11 == 0 && !(a28 == 0)) && a17 == 8) && a19 == 1) && a21 == 1)))) || ((7 == a17 && !(a19 == a11)) && (((((!(a28 == 0) && a19 == 1) && a21 == 1) && a25 == 1) && !(a17 == 0)) || ((((a11 == 0 && !(a28 == 0)) && a17 == 8) && a19 == 1) && a21 == 1)))) || (((7 == a17 && 1 == a25) && 9 <= a28) && !(a19 == a11))) || ((a28 <= 7 && !(a19 == a11)) && (((((!(a28 == 0) && a19 == 1) && a21 == 1) && a25 == 1) && !(a17 == 0)) || ((((a11 == 0 && !(a28 == 0)) && a17 == 8) && a19 == 1) && a21 == 1)))) || !(1 == \old(a19))) || !(8 == \old(a17)) [2018-11-22 23:51:48,263 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f2067a3b-a6f9-45d4-9acd-4aa4b65b04c5/bin-2019/utaipan/witness.graphml [2018-11-22 23:51:48,263 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 23:51:48,263 INFO L168 Benchmark]: Toolchain (without parser) took 27096.23 ms. Allocated memory was 1.0 GB in the beginning and 2.6 GB in the end (delta: 1.6 GB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -136.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-11-22 23:51:48,264 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-11-22 23:51:48,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.54 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 916.0 MB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. [2018-11-22 23:51:48,264 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 916.0 MB in the beginning and 1.1 GB in the end (delta: -233.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-22 23:51:48,264 INFO L168 Benchmark]: Boogie Preprocessor took 50.35 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-22 23:51:48,264 INFO L168 Benchmark]: RCFGBuilder took 755.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.7 MB). Peak memory consumption was 102.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:51:48,265 INFO L168 Benchmark]: TraceAbstraction took 25748.38 ms. Allocated memory was 1.2 GB in the beginning and 2.6 GB in the end (delta: 1.4 GB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -76.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-11-22 23:51:48,265 INFO L168 Benchmark]: Witness Printer took 107.52 ms. Allocated memory is still 2.6 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-11-22 23:51:48,266 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 354.54 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 916.0 MB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 916.0 MB in the beginning and 1.1 GB in the end (delta: -233.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.35 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 755.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.7 MB). Peak memory consumption was 102.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25748.38 ms. Allocated memory was 1.2 GB in the beginning and 2.6 GB in the end (delta: 1.4 GB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -76.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. * Witness Printer took 107.52 ms. Allocated memory is still 2.6 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 496]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((((!(1 == a21) || !(7 == \old(a28))) || (\old(a17) == a17 && 1 == a25)) || !(0 == \old(a11))) || (((10 <= a28 && a28 <= 10) && a19 == 1) && !(a17 == 0))) || !(0 == \old(a25))) || (\old(a17) == a17 && !(a28 == 10))) || (10 <= a28 && 7 == a17)) || ((a28 <= 7 && 7 == a17) && (((((!(a28 == 0) && a19 == 1) && a21 == 1) && a25 == 1) && !(a17 == 0)) || ((((a11 == 0 && !(a28 == 0)) && a17 == 8) && a19 == 1) && a21 == 1)))) || ((7 == a17 && !(a19 == a11)) && (((((!(a28 == 0) && a19 == 1) && a21 == 1) && a25 == 1) && !(a17 == 0)) || ((((a11 == 0 && !(a28 == 0)) && a17 == 8) && a19 == 1) && a21 == 1)))) || (((7 == a17 && 1 == a25) && 9 <= a28) && !(a19 == a11))) || ((a28 <= 7 && !(a19 == a11)) && (((((!(a28 == 0) && a19 == 1) && a21 == 1) && a25 == 1) && !(a17 == 0)) || ((((a11 == 0 && !(a28 == 0)) && a17 == 8) && a19 == 1) && a21 == 1)))) || !(1 == \old(a19))) || !(8 == \old(a17)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. SAFE Result, 25.6s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 17.8s AutomataDifference, 0.0s DeadEndRemovalTime, 1.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 2092 SDtfs, 11336 SDslu, 2524 SDs, 0 SdLazy, 15610 SolverSat, 3202 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 2751 GetRequests, 2577 SyntacticMatches, 12 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16181occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.9s AbstIntTime, 9 AbstIntIterations, 4 AbstIntStrong, 0.9967303973143706 AbsIntWeakeningRatio, 0.2354948805460751 AbsIntAvgWeakeningVarsNumRemoved, 25.996587030716725 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 1573 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 367 PreInvPairs, 539 NumberOfFragments, 994 HoareAnnotationTreeSize, 367 FomulaSimplifications, 17073 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10600 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2817 NumberOfCodeBlocks, 2817 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3788 ConstructedInterpolants, 0 QuantifiedInterpolants, 1350939 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2582 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 2211/2529 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...