./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/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 5f1f3e9c958502587d73771213325403adeeeeae ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:00:08,303 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:00:08,304 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:00:08,310 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:00:08,311 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:00:08,311 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:00:08,312 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:00:08,313 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:00:08,314 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:00:08,315 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:00:08,315 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:00:08,315 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:00:08,316 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:00:08,317 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:00:08,318 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:00:08,318 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:00:08,319 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:00:08,320 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:00:08,321 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:00:08,322 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:00:08,323 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:00:08,324 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:00:08,325 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:00:08,325 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:00:08,326 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:00:08,326 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:00:08,327 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:00:08,327 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:00:08,328 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:00:08,329 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:00:08,329 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:00:08,329 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:00:08,329 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:00:08,329 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:00:08,330 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:00:08,331 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:00:08,331 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:00:08,340 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:00:08,340 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:00:08,341 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:00:08,341 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:00:08,341 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:00:08,341 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:00:08,341 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:00:08,341 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:00:08,342 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:00:08,342 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:00:08,342 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:00:08,342 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:00:08,342 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:00:08,343 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:00:08,343 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:00:08,343 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:00:08,343 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:00:08,343 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:00:08,343 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:00:08,343 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:00:08,343 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:00:08,344 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:00:08,344 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:00:08,344 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:00:08,344 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:00:08,344 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:00:08,344 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:00:08,344 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:00:08,344 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:00:08,345 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:00:08,345 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:00:08,345 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:00:08,345 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:00:08,345 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:00:08,345 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:00:08,345 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:00:08,346 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:00:08,346 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_60970fbc-9474-4a70-bfeb-5ba9477e89ac/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 -> 5f1f3e9c958502587d73771213325403adeeeeae [2018-11-18 13:00:08,368 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:00:08,376 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:00:08,379 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:00:08,380 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:00:08,380 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:00:08,381 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c [2018-11-18 13:00:08,414 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/bin-2019/utaipan/data/5c24f31e2/97e24de2d02743358d103a79b739d7e3/FLAGb7fbe0ccf [2018-11-18 13:00:08,760 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:00:08,761 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c [2018-11-18 13:00:08,771 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/bin-2019/utaipan/data/5c24f31e2/97e24de2d02743358d103a79b739d7e3/FLAGb7fbe0ccf [2018-11-18 13:00:08,783 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/bin-2019/utaipan/data/5c24f31e2/97e24de2d02743358d103a79b739d7e3 [2018-11-18 13:00:08,785 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:00:08,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:00:08,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:00:08,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:00:08,790 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:00:08,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:00:08" (1/1) ... [2018-11-18 13:00:08,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f427c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:08, skipping insertion in model container [2018-11-18 13:00:08,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:00:08" (1/1) ... [2018-11-18 13:00:08,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:00:08,834 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:00:09,078 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:00:09,080 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:00:09,148 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:00:09,161 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:00:09,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:09 WrapperNode [2018-11-18 13:00:09,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:00:09,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:00:09,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:00:09,162 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:00:09,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:09" (1/1) ... [2018-11-18 13:00:09,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:09" (1/1) ... [2018-11-18 13:00:09,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:00:09,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:00:09,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:00:09,236 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:00:09,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:09" (1/1) ... [2018-11-18 13:00:09,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:09" (1/1) ... [2018-11-18 13:00:09,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:09" (1/1) ... [2018-11-18 13:00:09,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:09" (1/1) ... [2018-11-18 13:00:09,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:09" (1/1) ... [2018-11-18 13:00:09,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:09" (1/1) ... [2018-11-18 13:00:09,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:09" (1/1) ... [2018-11-18 13:00:09,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:00:09,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:00:09,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:00:09,291 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:00:09,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/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 [2018-11-18 13:00:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 13:00:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:00:09,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:00:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 13:00:09,341 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 13:00:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:00:09,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:00:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:00:09,341 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:00:10,148 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:00:10,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:00:10 BoogieIcfgContainer [2018-11-18 13:00:10,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:00:10,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:00:10,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:00:10,152 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:00:10,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:00:08" (1/3) ... [2018-11-18 13:00:10,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25585ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:00:10, skipping insertion in model container [2018-11-18 13:00:10,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:09" (2/3) ... [2018-11-18 13:00:10,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25585ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:00:10, skipping insertion in model container [2018-11-18 13:00:10,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:00:10" (3/3) ... [2018-11-18 13:00:10,154 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label59_true-unreach-call.c [2018-11-18 13:00:10,161 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:00:10,167 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:00:10,177 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:00:10,199 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:00:10,199 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:00:10,199 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:00:10,200 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:00:10,200 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:00:10,200 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:00:10,200 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:00:10,200 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:00:10,218 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-18 13:00:10,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-18 13:00:10,225 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:00:10,225 INFO L375 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] [2018-11-18 13:00:10,227 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:00:10,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:00:10,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1019321972, now seen corresponding path program 1 times [2018-11-18 13:00:10,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:00:10,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:10,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:00:10,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:10,263 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:00:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:00:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:00:10,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:00:10,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 13:00:10,484 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:00:10,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 13:00:10,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 13:00:10,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:00:10,498 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2018-11-18 13:00:11,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:00:11,321 INFO L93 Difference]: Finished difference Result 737 states and 1298 transitions. [2018-11-18 13:00:11,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 13:00:11,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2018-11-18 13:00:11,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:00:11,333 INFO L225 Difference]: With dead ends: 737 [2018-11-18 13:00:11,333 INFO L226 Difference]: Without dead ends: 515 [2018-11-18 13:00:11,337 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:00:11,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2018-11-18 13:00:11,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 356. [2018-11-18 13:00:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-18 13:00:11,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 613 transitions. [2018-11-18 13:00:11,386 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 613 transitions. Word has length 72 [2018-11-18 13:00:11,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:00:11,387 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 613 transitions. [2018-11-18 13:00:11,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 13:00:11,387 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 613 transitions. [2018-11-18 13:00:11,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-18 13:00:11,392 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:00:11,393 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:00:11,393 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:00:11,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:00:11,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1630388773, now seen corresponding path program 1 times [2018-11-18 13:00:11,394 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:00:11,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:11,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:00:11,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:11,395 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:00:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:00:11,605 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 57 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:00:11,605 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:00:11,605 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:00:11,606 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-11-18 13:00:11,608 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:00:11,636 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:00:11,636 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:00:12,002 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:00:12,003 INFO L272 AbstractInterpreter]: Visited 79 different actions 223 times. Merged at 5 different actions 9 times. Never widened. Performed 1961 root evaluator evaluations with a maximum evaluation depth of 7. Performed 1961 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 13:00:12,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:00:12,019 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:00:12,019 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:00:12,019 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/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 [2018-11-18 13:00:12,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:00:12,029 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:00:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:00:12,068 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:00:12,126 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:00:12,126 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:00:12,175 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:00:12,192 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:00:12,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2018-11-18 13:00:12,192 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:00:12,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:00:12,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:00:12,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:00:12,194 INFO L87 Difference]: Start difference. First operand 356 states and 613 transitions. Second operand 3 states. [2018-11-18 13:00:12,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:00:12,587 INFO L93 Difference]: Finished difference Result 994 states and 1782 transitions. [2018-11-18 13:00:12,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:00:12,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2018-11-18 13:00:12,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:00:12,591 INFO L225 Difference]: With dead ends: 994 [2018-11-18 13:00:12,591 INFO L226 Difference]: Without dead ends: 644 [2018-11-18 13:00:12,594 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 286 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:00:12,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2018-11-18 13:00:12,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2018-11-18 13:00:12,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2018-11-18 13:00:12,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1034 transitions. [2018-11-18 13:00:12,618 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1034 transitions. Word has length 143 [2018-11-18 13:00:12,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:00:12,618 INFO L480 AbstractCegarLoop]: Abstraction has 644 states and 1034 transitions. [2018-11-18 13:00:12,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:00:12,619 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1034 transitions. [2018-11-18 13:00:12,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-18 13:00:12,622 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:00:12,622 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 13:00:12,623 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:00:12,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:00:12,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1733767164, now seen corresponding path program 1 times [2018-11-18 13:00:12,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:00:12,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:12,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:00:12,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:12,624 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:00:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:00:12,761 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:00:12,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:00:12,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:00:12,762 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:00:12,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:00:12,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:00:12,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:00:12,763 INFO L87 Difference]: Start difference. First operand 644 states and 1034 transitions. Second operand 6 states. [2018-11-18 13:00:13,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:00:13,661 INFO L93 Difference]: Finished difference Result 1847 states and 3197 transitions. [2018-11-18 13:00:13,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:00:13,662 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-11-18 13:00:13,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:00:13,669 INFO L225 Difference]: With dead ends: 1847 [2018-11-18 13:00:13,669 INFO L226 Difference]: Without dead ends: 1209 [2018-11-18 13:00:13,673 INFO L604 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 [2018-11-18 13:00:13,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2018-11-18 13:00:13,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1185. [2018-11-18 13:00:13,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1185 states. [2018-11-18 13:00:13,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1872 transitions. [2018-11-18 13:00:13,710 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1872 transitions. Word has length 154 [2018-11-18 13:00:13,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:00:13,710 INFO L480 AbstractCegarLoop]: Abstraction has 1185 states and 1872 transitions. [2018-11-18 13:00:13,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:00:13,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1872 transitions. [2018-11-18 13:00:13,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-11-18 13:00:13,715 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:00:13,716 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 13:00:13,716 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:00:13,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:00:13,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1561785849, now seen corresponding path program 1 times [2018-11-18 13:00:13,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:00:13,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:13,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:00:13,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:13,717 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:00:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:00:13,824 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:00:13,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:00:13,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 13:00:13,825 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:00:13,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 13:00:13,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 13:00:13,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:00:13,826 INFO L87 Difference]: Start difference. First operand 1185 states and 1872 transitions. Second operand 4 states. [2018-11-18 13:00:14,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:00:14,669 INFO L93 Difference]: Finished difference Result 2364 states and 3744 transitions. [2018-11-18 13:00:14,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 13:00:14,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 201 [2018-11-18 13:00:14,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:00:14,675 INFO L225 Difference]: With dead ends: 2364 [2018-11-18 13:00:14,676 INFO L226 Difference]: Without dead ends: 1185 [2018-11-18 13:00:14,680 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:00:14,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2018-11-18 13:00:14,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1185. [2018-11-18 13:00:14,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1185 states. [2018-11-18 13:00:14,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1698 transitions. [2018-11-18 13:00:14,710 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1698 transitions. Word has length 201 [2018-11-18 13:00:14,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:00:14,711 INFO L480 AbstractCegarLoop]: Abstraction has 1185 states and 1698 transitions. [2018-11-18 13:00:14,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 13:00:14,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1698 transitions. [2018-11-18 13:00:14,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-11-18 13:00:14,715 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:00:14,716 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 13:00:14,716 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:00:14,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:00:14,716 INFO L82 PathProgramCache]: Analyzing trace with hash -809847816, now seen corresponding path program 1 times [2018-11-18 13:00:14,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:00:14,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:14,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:00:14,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:14,717 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:00:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:00:14,887 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:00:14,887 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:00:14,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:00:14,888 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:00:14,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:00:14,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:00:14,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:00:14,889 INFO L87 Difference]: Start difference. First operand 1185 states and 1698 transitions. Second operand 6 states. [2018-11-18 13:00:15,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:00:15,431 INFO L93 Difference]: Finished difference Result 3008 states and 4520 transitions. [2018-11-18 13:00:15,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:00:15,434 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2018-11-18 13:00:15,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:00:15,443 INFO L225 Difference]: With dead ends: 3008 [2018-11-18 13:00:15,443 INFO L226 Difference]: Without dead ends: 1829 [2018-11-18 13:00:15,447 INFO L604 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 [2018-11-18 13:00:15,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2018-11-18 13:00:15,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1793. [2018-11-18 13:00:15,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1793 states. [2018-11-18 13:00:15,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2543 transitions. [2018-11-18 13:00:15,495 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2543 transitions. Word has length 204 [2018-11-18 13:00:15,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:00:15,496 INFO L480 AbstractCegarLoop]: Abstraction has 1793 states and 2543 transitions. [2018-11-18 13:00:15,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:00:15,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2543 transitions. [2018-11-18 13:00:15,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-11-18 13:00:15,501 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:00:15,501 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:00:15,502 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:00:15,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:00:15,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1298522180, now seen corresponding path program 1 times [2018-11-18 13:00:15,502 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:00:15,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:15,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:00:15,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:15,503 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:00:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:00:15,627 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 130 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 13:00:15,627 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:00:15,627 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:00:15,627 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-11-18 13:00:15,628 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [494], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:00:15,630 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:00:15,630 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:00:15,705 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:00:15,706 INFO L272 AbstractInterpreter]: Visited 87 different actions 87 times. Never merged. Never widened. Performed 767 root evaluator evaluations with a maximum evaluation depth of 8. Performed 767 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Never found a fixpoint. Largest state had 24 variables. [2018-11-18 13:00:15,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:00:15,718 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:00:15,992 INFO L227 lantSequenceWeakener]: Weakened 215 states. On average, predicates are now at 73.82% of their original sizes. [2018-11-18 13:00:15,993 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:00:16,016 INFO L415 sIntCurrentIteration]: We unified 223 AI predicates to 223 [2018-11-18 13:00:16,016 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:00:16,017 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:00:16,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-18 13:00:16,017 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:00:16,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:00:16,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:00:16,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:00:16,018 INFO L87 Difference]: Start difference. First operand 1793 states and 2543 transitions. Second operand 6 states. [2018-11-18 13:00:26,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:00:26,516 INFO L93 Difference]: Finished difference Result 3726 states and 5313 transitions. [2018-11-18 13:00:26,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:00:26,516 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 224 [2018-11-18 13:00:26,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:00:26,522 INFO L225 Difference]: With dead ends: 3726 [2018-11-18 13:00:26,522 INFO L226 Difference]: Without dead ends: 1939 [2018-11-18 13:00:26,527 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 224 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:00:26,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2018-11-18 13:00:26,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1937. [2018-11-18 13:00:26,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1937 states. [2018-11-18 13:00:26,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 2695 transitions. [2018-11-18 13:00:26,566 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 2695 transitions. Word has length 224 [2018-11-18 13:00:26,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:00:26,566 INFO L480 AbstractCegarLoop]: Abstraction has 1937 states and 2695 transitions. [2018-11-18 13:00:26,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:00:26,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 2695 transitions. [2018-11-18 13:00:26,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-11-18 13:00:26,571 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:00:26,571 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 13:00:26,571 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:00:26,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:00:26,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1893058164, now seen corresponding path program 1 times [2018-11-18 13:00:26,572 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:00:26,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:26,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:00:26,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:00:26,573 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:00:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:00:26,779 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 134 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:00:26,780 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:00:26,780 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:00:26,780 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 231 with the following transitions: [2018-11-18 13:00:26,780 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:00:26,783 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:00:26,783 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:00:26,932 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:00:26,932 INFO L272 AbstractInterpreter]: Visited 96 different actions 282 times. Merged at 7 different actions 17 times. Never widened. Performed 2670 root evaluator evaluations with a maximum evaluation depth of 8. Performed 2670 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 13:00:26,934 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:00:26,934 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:00:26,934 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:00:26,934 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/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 [2018-11-18 13:00:26,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:00:26,945 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:00:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:00:26,993 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:00:37,027 WARN L180 SmtUtils]: Spent 9.97 s on a formula simplification. DAG size of input: 113 DAG size of output: 48 [2018-11-18 13:00:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 133 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:00:37,130 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:00:37,292 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 133 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:00:37,308 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:00:37,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2018-11-18 13:00:37,309 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:00:37,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 13:00:37,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 13:00:37,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-11-18 13:00:37,310 INFO L87 Difference]: Start difference. First operand 1937 states and 2695 transitions. Second operand 12 states. [2018-11-18 13:00:39,458 WARN L180 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 53 DAG size of output: 28 [2018-11-18 13:00:43,364 WARN L180 SmtUtils]: Spent 3.82 s on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2018-11-18 13:00:49,896 WARN L180 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 57 DAG size of output: 26 [2018-11-18 13:00:52,771 WARN L180 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 54 DAG size of output: 28 [2018-11-18 13:00:58,825 WARN L180 SmtUtils]: Spent 5.97 s on a formula simplification that was a NOOP. DAG size: 53 [2018-11-18 13:01:05,175 WARN L180 SmtUtils]: Spent 6.23 s on a formula simplification that was a NOOP. DAG size: 55 [2018-11-18 13:01:17,228 WARN L180 SmtUtils]: Spent 12.01 s on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2018-11-18 13:01:22,986 WARN L180 SmtUtils]: Spent 5.60 s on a formula simplification. DAG size of input: 61 DAG size of output: 28 [2018-11-18 13:01:25,259 WARN L180 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 57 DAG size of output: 25 [2018-11-18 13:01:26,618 WARN L180 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 56 DAG size of output: 31 [2018-11-18 13:01:29,943 WARN L180 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 61 DAG size of output: 42 [2018-11-18 13:01:31,253 WARN L180 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 53 DAG size of output: 28 [2018-11-18 13:01:40,474 WARN L180 SmtUtils]: Spent 8.18 s on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2018-11-18 13:01:41,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:01:41,139 INFO L93 Difference]: Finished difference Result 5680 states and 8469 transitions. [2018-11-18 13:01:41,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-11-18 13:01:41,139 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 230 [2018-11-18 13:01:41,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:01:41,153 INFO L225 Difference]: With dead ends: 5680 [2018-11-18 13:01:41,153 INFO L226 Difference]: Without dead ends: 3893 [2018-11-18 13:01:41,163 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 481 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 861 ImplicationChecksByTransitivity, 63.4s TimeCoverageRelationStatistics Valid=736, Invalid=2234, Unknown=0, NotChecked=0, Total=2970 [2018-11-18 13:01:41,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3893 states. [2018-11-18 13:01:41,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3893 to 3784. [2018-11-18 13:01:41,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3784 states. [2018-11-18 13:01:41,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 4772 transitions. [2018-11-18 13:01:41,250 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 4772 transitions. Word has length 230 [2018-11-18 13:01:41,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:01:41,250 INFO L480 AbstractCegarLoop]: Abstraction has 3784 states and 4772 transitions. [2018-11-18 13:01:41,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 13:01:41,250 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 4772 transitions. [2018-11-18 13:01:41,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-11-18 13:01:41,257 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:01:41,257 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:01:41,257 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:01:41,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:01:41,257 INFO L82 PathProgramCache]: Analyzing trace with hash -353802736, now seen corresponding path program 1 times [2018-11-18 13:01:41,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:01:41,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:01:41,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:01:41,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:01:41,258 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:01:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:01:41,408 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 131 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-18 13:01:41,408 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:01:41,408 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:01:41,409 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 235 with the following transitions: [2018-11-18 13:01:41,409 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [542], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:01:41,411 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:01:41,411 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:01:41,531 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:01:41,532 INFO L272 AbstractInterpreter]: Visited 91 different actions 265 times. Merged at 7 different actions 15 times. Never widened. Performed 2510 root evaluator evaluations with a maximum evaluation depth of 8. Performed 2510 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 13:01:41,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:01:41,534 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:01:41,534 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:01:41,534 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/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 [2018-11-18 13:01:41,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:01:41,543 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:01:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:01:41,595 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:01:41,658 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:01:41,658 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:01:41,766 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:01:41,783 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:01:41,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-11-18 13:01:41,783 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:01:41,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 13:01:41,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 13:01:41,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-18 13:01:41,784 INFO L87 Difference]: Start difference. First operand 3784 states and 4772 transitions. Second operand 11 states. [2018-11-18 13:01:43,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:01:43,243 INFO L93 Difference]: Finished difference Result 11295 states and 14688 transitions. [2018-11-18 13:01:43,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 13:01:43,243 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 234 [2018-11-18 13:01:43,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:01:43,253 INFO L225 Difference]: With dead ends: 11295 [2018-11-18 13:01:43,253 INFO L226 Difference]: Without dead ends: 3404 [2018-11-18 13:01:43,279 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 472 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2018-11-18 13:01:43,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2018-11-18 13:01:43,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 2528. [2018-11-18 13:01:43,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2528 states. [2018-11-18 13:01:43,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 2811 transitions. [2018-11-18 13:01:43,332 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 2811 transitions. Word has length 234 [2018-11-18 13:01:43,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:01:43,333 INFO L480 AbstractCegarLoop]: Abstraction has 2528 states and 2811 transitions. [2018-11-18 13:01:43,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 13:01:43,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 2811 transitions. [2018-11-18 13:01:43,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2018-11-18 13:01:43,340 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:01:43,340 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:01:43,341 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:01:43,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:01:43,341 INFO L82 PathProgramCache]: Analyzing trace with hash -366661461, now seen corresponding path program 1 times [2018-11-18 13:01:43,341 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:01:43,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:01:43,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:01:43,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:01:43,342 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:01:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:01:43,863 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 286 proven. 166 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 13:01:43,864 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:01:43,864 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:01:43,864 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 364 with the following transitions: [2018-11-18 13:01:43,864 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:01:43,867 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:01:43,867 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:01:44,508 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:01:44,508 INFO L272 AbstractInterpreter]: Visited 126 different actions 254 times. Merged at 8 different actions 14 times. Never widened. Performed 2565 root evaluator evaluations with a maximum evaluation depth of 20. Performed 2565 inverse root evaluator evaluations with a maximum inverse evaluation depth of 20. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 13:01:44,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:01:44,510 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:01:44,510 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:01:44,510 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/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 [2018-11-18 13:01:44,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:01:44,515 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:01:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:01:44,559 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:01:44,654 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 370 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-11-18 13:01:44,655 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:01:44,812 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 370 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-11-18 13:01:44,828 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:01:44,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 16 [2018-11-18 13:01:44,828 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:01:44,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 13:01:44,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 13:01:44,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-11-18 13:01:44,829 INFO L87 Difference]: Start difference. First operand 2528 states and 2811 transitions. Second operand 15 states. [2018-11-18 13:01:47,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:01:47,160 INFO L93 Difference]: Finished difference Result 6502 states and 7492 transitions. [2018-11-18 13:01:47,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-11-18 13:01:47,161 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 363 [2018-11-18 13:01:47,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:01:47,168 INFO L225 Difference]: With dead ends: 6502 [2018-11-18 13:01:47,168 INFO L226 Difference]: Without dead ends: 4124 [2018-11-18 13:01:47,171 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 750 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=468, Invalid=1982, Unknown=0, NotChecked=0, Total=2450 [2018-11-18 13:01:47,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4124 states. [2018-11-18 13:01:47,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4124 to 3284. [2018-11-18 13:01:47,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3284 states. [2018-11-18 13:01:47,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3284 states to 3284 states and 3643 transitions. [2018-11-18 13:01:47,217 INFO L78 Accepts]: Start accepts. Automaton has 3284 states and 3643 transitions. Word has length 363 [2018-11-18 13:01:47,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:01:47,217 INFO L480 AbstractCegarLoop]: Abstraction has 3284 states and 3643 transitions. [2018-11-18 13:01:47,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 13:01:47,217 INFO L276 IsEmpty]: Start isEmpty. Operand 3284 states and 3643 transitions. [2018-11-18 13:01:47,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-11-18 13:01:47,223 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:01:47,223 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 13:01:47,223 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:01:47,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:01:47,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1827425236, now seen corresponding path program 1 times [2018-11-18 13:01:47,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:01:47,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:01:47,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:01:47,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:01:47,225 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:01:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:01:47,813 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 256 proven. 223 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:01:47,813 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:01:47,814 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:01:47,814 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 405 with the following transitions: [2018-11-18 13:01:47,814 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:01:47,816 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:01:47,816 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:01:47,934 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:01:47,934 INFO L272 AbstractInterpreter]: Visited 145 different actions 429 times. Merged at 8 different actions 17 times. Never widened. Performed 4506 root evaluator evaluations with a maximum evaluation depth of 9. Performed 4506 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 13:01:47,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:01:47,942 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:01:47,942 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:01:47,942 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/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 [2018-11-18 13:01:47,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:01:47,955 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:01:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:01:48,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:01:51,228 WARN L180 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-11-18 13:01:53,712 WARN L180 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 62 [2018-11-18 13:01:54,046 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 168 proven. 208 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-11-18 13:01:54,046 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:01:54,244 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:54,441 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2018-11-18 13:01:54,443 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:54,489 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:54,532 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:54,576 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:54,621 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:54,663 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:54,717 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:54,778 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:54,823 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:54,877 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:54,925 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:54,976 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,015 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,066 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,114 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,154 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,207 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,255 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,295 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,346 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,388 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,428 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,468 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,521 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,560 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,600 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,640 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,684 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,723 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,766 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,818 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,872 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,914 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,952 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:55,991 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,031 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,070 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,110 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,154 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,194 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,234 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,274 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,314 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,354 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,394 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,451 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,503 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,544 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,589 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,633 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,675 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,717 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,760 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,803 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,893 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:56,990 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,051 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,099 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,137 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,177 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,220 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,261 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,300 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,339 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,408 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,453 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,495 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,551 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,606 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,655 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,697 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,740 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,783 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,823 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,863 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,904 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,944 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:57,987 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:58,035 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:01:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 370 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-11-18 13:01:58,437 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:01:58,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 6] total 28 [2018-11-18 13:01:58,437 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:01:58,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-18 13:01:58,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-18 13:01:58,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=654, Unknown=1, NotChecked=0, Total=756 [2018-11-18 13:01:58,438 INFO L87 Difference]: Start difference. First operand 3284 states and 3643 transitions. Second operand 25 states. [2018-11-18 13:02:00,328 WARN L180 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2018-11-18 13:02:07,611 WARN L180 SmtUtils]: Spent 5.77 s on a formula simplification. DAG size of input: 114 DAG size of output: 80 [2018-11-18 13:02:09,978 WARN L180 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 46 DAG size of output: 23 [2018-11-18 13:02:11,595 WARN L180 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2018-11-18 13:02:13,426 WARN L180 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2018-11-18 13:02:14,576 WARN L180 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2018-11-18 13:02:15,526 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 93 [2018-11-18 13:02:19,489 WARN L180 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 129 DAG size of output: 94 [2018-11-18 13:02:20,065 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 102 [2018-11-18 13:02:21,152 WARN L180 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 87 DAG size of output: 40 [2018-11-18 13:02:33,581 WARN L180 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2018-11-18 13:02:56,182 WARN L180 SmtUtils]: Spent 4.45 s on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2018-11-18 13:03:32,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:03:32,693 INFO L93 Difference]: Finished difference Result 9688 states and 10992 transitions. [2018-11-18 13:03:32,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2018-11-18 13:03:32,693 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 404 [2018-11-18 13:03:32,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:03:32,710 INFO L225 Difference]: With dead ends: 9688 [2018-11-18 13:03:32,710 INFO L226 Difference]: Without dead ends: 6554 [2018-11-18 13:03:32,717 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 733 SyntacticMatches, 84 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6069 ImplicationChecksByTransitivity, 41.3s TimeCoverageRelationStatistics Valid=2364, Invalid=12389, Unknown=9, NotChecked=0, Total=14762 [2018-11-18 13:03:32,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6554 states. [2018-11-18 13:03:32,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6554 to 5450. [2018-11-18 13:03:32,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5450 states. [2018-11-18 13:03:32,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 5985 transitions. [2018-11-18 13:03:32,851 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 5985 transitions. Word has length 404 [2018-11-18 13:03:32,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:03:32,852 INFO L480 AbstractCegarLoop]: Abstraction has 5450 states and 5985 transitions. [2018-11-18 13:03:32,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-18 13:03:32,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 5985 transitions. [2018-11-18 13:03:32,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2018-11-18 13:03:32,867 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:03:32,867 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:03:32,867 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:03:32,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:03:32,868 INFO L82 PathProgramCache]: Analyzing trace with hash 930734900, now seen corresponding path program 1 times [2018-11-18 13:03:32,868 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:03:32,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:03:32,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:03:32,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:03:32,869 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:03:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:03:33,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 500 proven. 150 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2018-11-18 13:03:33,201 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:03:33,202 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:03:33,202 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 549 with the following transitions: [2018-11-18 13:03:33,202 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [543], [547], [551], [555], [558], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 13:03:33,203 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:03:33,203 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:03:33,386 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:03:33,386 INFO L272 AbstractInterpreter]: Visited 128 different actions 384 times. Merged at 10 different actions 23 times. Never widened. Performed 3975 root evaluator evaluations with a maximum evaluation depth of 18. Performed 3975 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 13:03:33,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:03:33,390 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:03:33,390 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:03:33,390 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:03:33,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:03:33,397 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:03:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:03:33,464 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:03:37,314 WARN L180 SmtUtils]: Spent 3.73 s on a formula simplification. DAG size of input: 123 DAG size of output: 62 [2018-11-18 13:03:37,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 805 proven. 136 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-11-18 13:03:37,649 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:03:37,831 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:37,970 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,001 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,039 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,074 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,107 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,144 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,179 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,213 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,248 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,286 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,320 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,352 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,381 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,410 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,440 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,468 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,498 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,531 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,562 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,591 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,620 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,651 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,679 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,708 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,737 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,766 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,796 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,824 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,854 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,883 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,913 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,943 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:38,974 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,008 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,041 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,072 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,111 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,147 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,182 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,217 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,253 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,302 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,336 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,371 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,405 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,435 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,463 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,493 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,522 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,550 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,580 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,610 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,647 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,679 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,707 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,736 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,765 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,795 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,825 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,855 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,884 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,913 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,942 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:39,971 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,006 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,035 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,063 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,092 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,120 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,150 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,179 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,207 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,234 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,265 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,293 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,320 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,348 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,375 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,404 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-18 13:03:40,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 669 proven. 2 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2018-11-18 13:03:40,953 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:03:40,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 6] total 16 [2018-11-18 13:03:40,953 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:03:40,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 13:03:40,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 13:03:40,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-11-18 13:03:40,955 INFO L87 Difference]: Start difference. First operand 5450 states and 5985 transitions. Second operand 12 states. [2018-11-18 13:03:42,882 WARN L180 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 79 [2018-11-18 13:03:44,795 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-11-18 13:03:46,271 WARN L180 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2018-11-18 13:03:50,608 WARN L180 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2018-11-18 13:03:51,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:03:51,190 INFO L93 Difference]: Finished difference Result 12000 states and 13594 transitions. [2018-11-18 13:03:51,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-11-18 13:03:51,190 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 548 [2018-11-18 13:03:51,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:03:51,191 INFO L225 Difference]: With dead ends: 12000 [2018-11-18 13:03:51,191 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:03:51,200 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1160 GetRequests, 1033 SyntacticMatches, 80 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=496, Invalid=1856, Unknown=0, NotChecked=0, Total=2352 [2018-11-18 13:03:51,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:03:51,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:03:51,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:03:51,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:03:51,201 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 548 [2018-11-18 13:03:51,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:03:51,201 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:03:51,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 13:03:51,201 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:03:51,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:03:51,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:03:51,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,545 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,559 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,568 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,618 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,792 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,859 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,910 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:51,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,028 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,138 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,245 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,290 WARN L180 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 528 DAG size of output: 448 [2018-11-18 13:03:52,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,308 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,329 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,441 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,583 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,663 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,805 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:03:52,830 WARN L180 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 525 DAG size of output: 450 [2018-11-18 13:03:54,239 WARN L180 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 403 DAG size of output: 110 [2018-11-18 13:04:07,459 WARN L180 SmtUtils]: Spent 13.21 s on a formula simplification. DAG size of input: 443 DAG size of output: 74 [2018-11-18 13:04:16,362 WARN L180 SmtUtils]: Spent 8.90 s on a formula simplification. DAG size of input: 446 DAG size of output: 77 [2018-11-18 13:04:16,364 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:04:16,364 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|)) [2018-11-18 13:04:16,364 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:04:16,364 INFO L425 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-11-18 13:04:16,364 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-11-18 13:04:16,365 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-11-18 13:04:16,366 INFO L425 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 199) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-11-18 13:04:16,367 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 13:04:16,368 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-11-18 13:04:16,369 INFO L425 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 13:04:16,370 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-11-18 13:04:16,371 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,372 INFO L425 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-11-18 13:04:16,373 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-11-18 13:04:16,373 INFO L425 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-11-18 13:04:16,373 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 13:04:16,373 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 13:04:16,373 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 13:04:16,373 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 13:04:16,373 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 13:04:16,373 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 13:04:16,373 INFO L425 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-11-18 13:04:16,373 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-11-18 13:04:16,373 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse19 (= |old(~a19~0)| ~a19~0)) (.cse15 (= 9 |old(~a19~0)|)) (.cse2 (= ~a1~0 |old(~a1~0)|)) (.cse1 (= ~a19~0 |old(~a19~0)|)) (.cse16 (= |old(~a10~0)| ~a10~0))) (let ((.cse0 (= ~a10~0 |old(~a10~0)|)) (.cse12 (not (= 0 |old(~a10~0)|))) (.cse11 (and .cse2 .cse1 .cse16)) (.cse6 (not .cse15)) (.cse3 (not (= 14 ~a4~0))) (.cse4 (not (= 0 ~a12~0))) (.cse5 (not (= 1 |old(~a10~0)|))) (.cse7 (<= 449589 ~a1~0)) (.cse10 (< |old(~a1~0)| 449589)) (.cse14 (= 8 |old(~a19~0)|)) (.cse17 (<= (+ |old(~a1~0)| 13) 0)) (.cse8 (< |old(~a10~0)| 2)) (.cse9 (< 8 |old(~a19~0)|)) (.cse13 (and .cse19 .cse16))) (and (or (and .cse0 .cse1 .cse2) .cse3 .cse4 (or .cse5 .cse6)) (or .cse7 .cse8 .cse9 .cse10) (or .cse3 .cse4 .cse11 .cse6 .cse12 (< |old(~a1~0)| 118)) (or .cse9 .cse13 .cse14) (or (or .cse15 (< 2 |old(~a10~0)|) .cse14) (and .cse1 .cse16 .cse2) .cse3 .cse4) (or (or .cse8 (= 10 |old(~a19~0)|) .cse17 .cse14) .cse3 .cse4 (and .cse16 .cse1 .cse2)) (or (and (and .cse0 .cse1) .cse2) (or .cse3 (or .cse6 (< |old(~a10~0)| 4)) .cse4)) (or .cse3 (not (= 23 |old(~a1~0)|)) (= |calculate_output_#in~input| 0) .cse4 .cse6 (and (= ~a1~0 23) .cse1 .cse16) .cse12) (or (< |old(~a10~0)| 3) .cse11 .cse3 .cse4 .cse6 (forall ((v_~a1~0_430 Int)) (let ((.cse18 (mod v_~a1~0_430 299993))) (or (= .cse18 0) (< 0 (+ v_~a1~0_430 13)) (< (+ |old(~a1~0)| 600000) .cse18) (<= 0 v_~a1~0_430))))) (or (or .cse14 (not (= 2 |old(~a10~0)|))) (and .cse2 .cse13) .cse3 .cse4) (or .cse5 .cse7 .cse9 .cse10 .cse14) (or (and .cse19 (< 0 (+ ~a1~0 13)) .cse16) .cse9 .cse17) (or .cse8 .cse9 .cse13)))) [2018-11-18 13:04:16,373 INFO L425 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 13:04:16,374 INFO L425 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 13:04:16,375 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 13:04:16,376 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 13:04:16,377 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 13:04:16,377 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 13:04:16,377 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 13:04:16,377 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 13:04:16,377 INFO L425 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-11-18 13:04:16,377 INFO L425 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-11-18 13:04:16,377 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-11-18 13:04:16,377 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:04:16,377 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14) (= 9 ~a19~0)) [2018-11-18 13:04:16,377 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:04:16,377 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:04:16,377 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (and (= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0)) (not (= 14 ~a4~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (= 0 |old(~a10~0)|))) [2018-11-18 13:04:16,377 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-11-18 13:04:16,378 INFO L421 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (= |old(~a19~0)| ~a19~0)) (.cse1 (<= 2 ~a10~0)) (.cse3 (< 0 (+ ~a1~0 13)))) (or (not (= 0 |old(~a10~0)|)) (and .cse0 (<= 4 ~a10~0)) (not (= 14 ~a4~0)) (and (<= ~a19~0 8) .cse1) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and (exists ((v_~a1~0_430 Int)) (let ((.cse2 (mod v_~a1~0_430 299993))) (and (< v_~a1~0_430 0) (<= (+ v_~a1~0_430 13) 0) (<= .cse2 (+ ~a1~0 600000)) (not (= .cse2 0))))) .cse0 (<= 3 ~a10~0)) (and (not (= ~a19~0 8)) (<= ~a10~0 2) (not (= ~a19~0 9))) (and (not (= main_~input~0 0)) (= ~a1~0 23) (= |old(~a10~0)| ~a10~0)) (= 2 ~a10~0) (and .cse0 (= 1 ~a10~0)) (and .cse1 (not (= ~a19~0 10)) .cse3) (and (= 8 ~a19~0) .cse3) (not (= 9 |old(~a19~0)|)) (and (= 0 ~a10~0) (<= 118 ~a1~0)))) [2018-11-18 13:04:16,378 INFO L425 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-11-18 13:04:16,378 INFO L425 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-11-18 13:04:16,378 INFO L425 ceAbstractionStarter]: For program point L582-1(lines 582 591) no Hoare annotation was computed. [2018-11-18 13:04:16,378 INFO L421 ceAbstractionStarter]: At program point L582-3(lines 582 591) the Hoare annotation is: (let ((.cse0 (= |old(~a19~0)| ~a19~0)) (.cse1 (<= 2 ~a10~0)) (.cse3 (< 0 (+ ~a1~0 13)))) (or (not (= 0 |old(~a10~0)|)) (and .cse0 (<= 4 ~a10~0)) (not (= 14 ~a4~0)) (and (<= ~a19~0 8) .cse1) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and (exists ((v_~a1~0_430 Int)) (let ((.cse2 (mod v_~a1~0_430 299993))) (and (< v_~a1~0_430 0) (<= (+ v_~a1~0_430 13) 0) (<= .cse2 (+ ~a1~0 600000)) (not (= .cse2 0))))) .cse0 (<= 3 ~a10~0)) (and (not (= ~a19~0 8)) (<= ~a10~0 2) (not (= ~a19~0 9))) (and (= ~a1~0 23) (= |old(~a10~0)| ~a10~0)) (= 2 ~a10~0) (and .cse0 (= 1 ~a10~0)) (and .cse1 (not (= ~a19~0 10)) .cse3) (and (= 8 ~a19~0) .cse3) (not (= 9 |old(~a19~0)|)) (and (= 0 ~a10~0) (<= 118 ~a1~0)))) [2018-11-18 13:04:16,378 INFO L425 ceAbstractionStarter]: For program point L582-4(lines 576 592) no Hoare annotation was computed. [2018-11-18 13:04:16,382 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,383 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,383 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,383 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,387 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,387 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,387 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,388 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:04:16 BoogieIcfgContainer [2018-11-18 13:04:16,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:04:16,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:04:16,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:04:16,391 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:04:16,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:00:10" (3/4) ... [2018-11-18 13:04:16,394 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:04:16,399 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:04:16,399 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 13:04:16,400 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:04:16,408 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 13:04:16,409 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:04:16,432 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((!(0 == \old(a10)) || (\old(a19) == a19 && 4 <= a10)) || !(14 == a4)) || (a19 <= 8 && 2 <= a10)) || !(23 == \old(a1))) || !(0 == a12)) || (((\exists v_~a1~0_430 : int :: ((v_~a1~0_430 < 0 && v_~a1~0_430 + 13 <= 0) && v_~a1~0_430 % 299993 <= a1 + 600000) && !(v_~a1~0_430 % 299993 == 0)) && \old(a19) == a19) && 3 <= a10)) || ((!(a19 == 8) && a10 <= 2) && !(a19 == 9))) || (a1 == 23 && \old(a10) == a10)) || 2 == a10) || (\old(a19) == a19 && 1 == a10)) || ((2 <= a10 && !(a19 == 10)) && 0 < a1 + 13)) || (8 == a19 && 0 < a1 + 13)) || !(9 == \old(a19))) || (0 == a10 && 118 <= a1) [2018-11-18 13:04:16,496 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_60970fbc-9474-4a70-bfeb-5ba9477e89ac/bin-2019/utaipan/witness.graphml [2018-11-18 13:04:16,496 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:04:16,497 INFO L168 Benchmark]: Toolchain (without parser) took 247710.92 ms. Allocated memory was 1.0 GB in the beginning and 3.3 GB in the end (delta: 2.2 GB). Free memory was 950.0 MB in the beginning and 2.5 GB in the end (delta: -1.6 GB). Peak memory consumption was 680.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:04:16,497 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:04:16,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.27 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 920.5 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:04:16,498 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 917.8 MB in the beginning and 1.2 GB in the end (delta: -235.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-11-18 13:04:16,498 INFO L168 Benchmark]: Boogie Preprocessor took 54.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:04:16,498 INFO L168 Benchmark]: RCFGBuilder took 858.25 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: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:04:16,498 INFO L168 Benchmark]: TraceAbstraction took 246241.02 ms. Allocated memory was 1.2 GB in the beginning and 3.3 GB in the end (delta: 2.1 GB). Free memory was 1.0 GB in the beginning and 2.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.5 GB. Max. memory is 11.5 GB. [2018-11-18 13:04:16,498 INFO L168 Benchmark]: Witness Printer took 105.65 ms. Allocated memory is still 3.3 GB. Free memory was 2.6 GB in the beginning and 2.5 GB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:04:16,500 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 374.27 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 920.5 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 917.8 MB in the beginning and 1.2 GB in the end (delta: -235.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 858.25 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: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 246241.02 ms. Allocated memory was 1.2 GB in the beginning and 3.3 GB in the end (delta: 2.1 GB). Free memory was 1.0 GB in the beginning and 2.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.5 GB. Max. memory is 11.5 GB. * Witness Printer took 105.65 ms. Allocated memory is still 3.3 GB. Free memory was 2.6 GB in the beginning and 2.5 GB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 199]: 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: 582]: Loop Invariant [2018-11-18 13:04:16,503 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,503 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,504 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,504 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,505 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,505 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,505 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-11-18 13:04:16,505 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] Derived loop invariant: (((((((((((((!(0 == \old(a10)) || (\old(a19) == a19 && 4 <= a10)) || !(14 == a4)) || (a19 <= 8 && 2 <= a10)) || !(23 == \old(a1))) || !(0 == a12)) || (((\exists v_~a1~0_430 : int :: ((v_~a1~0_430 < 0 && v_~a1~0_430 + 13 <= 0) && v_~a1~0_430 % 299993 <= a1 + 600000) && !(v_~a1~0_430 % 299993 == 0)) && \old(a19) == a19) && 3 <= a10)) || ((!(a19 == 8) && a10 <= 2) && !(a19 == 9))) || (a1 == 23 && \old(a10) == a10)) || 2 == a10) || (\old(a19) == a19 && 1 == a10)) || ((2 <= a10 && !(a19 == 10)) && 0 < a1 + 13)) || (8 == a19 && 0 < a1 + 13)) || !(9 == \old(a19))) || (0 == a10 && 118 <= a1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. SAFE Result, 246.1s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 186.2s AutomataDifference, 0.0s DeadEndRemovalTime, 25.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 1615 SDtfs, 16332 SDslu, 2991 SDs, 0 SdLazy, 36227 SolverSat, 5211 SolverUnsat, 193 SolverUnknown, 0 SolverNotchecked, 88.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 4484 GetRequests, 3985 SyntacticMatches, 178 SemanticMatches, 321 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8703 ImplicationChecksByTransitivity, 118.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5450occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.7s AbstIntTime, 7 AbstIntIterations, 1 AbstIntStrong, 0.9974753945605966 AbsIntWeakeningRatio, 0.11659192825112108 AbsIntAvgWeakeningVarsNumRemoved, 15.52914798206278 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 3150 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 240 PreInvPairs, 448 NumberOfFragments, 667 HoareAnnotationTreeSize, 240 FomulaSimplifications, 127403 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 72564 FormulaSimplificationTreeSizeReductionInter, 23.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 30.3s InterpolantComputationTime, 4699 NumberOfCodeBlocks, 4699 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 6598 ConstructedInterpolants, 337 QuantifiedInterpolants, 19711365 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3097 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 23 InterpolantComputations, 6 PerfectInterpolantSequences, 6979/8156 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...