./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label06_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label06_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/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 7255ef06444f99ab088c00bc61034eb7aed45c3b ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 01:03:45,601 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:03:45,602 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:03:45,608 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:03:45,608 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:03:45,609 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:03:45,609 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:03:45,610 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:03:45,611 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:03:45,611 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:03:45,612 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:03:45,612 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:03:45,612 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:03:45,613 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:03:45,613 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:03:45,614 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:03:45,614 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:03:45,615 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:03:45,616 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:03:45,617 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:03:45,617 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:03:45,618 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:03:45,619 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:03:45,619 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:03:45,619 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:03:45,620 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:03:45,620 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:03:45,621 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:03:45,621 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:03:45,622 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:03:45,622 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:03:45,622 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:03:45,623 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:03:45,623 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:03:45,623 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:03:45,624 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:03:45,624 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 01:03:45,632 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:03:45,632 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:03:45,632 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:03:45,632 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:03:45,632 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 01:03:45,633 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 01:03:45,633 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 01:03:45,633 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 01:03:45,633 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 01:03:45,633 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 01:03:45,633 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 01:03:45,633 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 01:03:45,634 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 01:03:45,634 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:03:45,634 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:03:45,634 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 01:03:45,635 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:03:45,635 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:03:45,635 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:03:45,635 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:03:45,635 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:03:45,635 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:03:45,635 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:03:45,636 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:03:45,636 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:03:45,636 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:03:45,636 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:03:45,636 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:03:45,636 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:03:45,636 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:03:45,637 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:03:45,637 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:03:45,637 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 01:03:45,637 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:03:45,637 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 01:03:45,637 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 01:03:45,637 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_0646900a-438d-4c58-946b-23724b4d7685/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 -> 7255ef06444f99ab088c00bc61034eb7aed45c3b [2018-12-09 01:03:45,655 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:03:45,664 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:03:45,667 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:03:45,668 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:03:45,668 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:03:45,669 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem11_label06_true-unreach-call.c [2018-12-09 01:03:45,703 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/data/04ac2dc8b/d06589b7fae346378709d0d0d1065052/FLAG3f8329d2c [2018-12-09 01:03:46,157 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:03:46,158 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/sv-benchmarks/c/eca-rers2012/Problem11_label06_true-unreach-call.c [2018-12-09 01:03:46,166 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/data/04ac2dc8b/d06589b7fae346378709d0d0d1065052/FLAG3f8329d2c [2018-12-09 01:03:46,175 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/data/04ac2dc8b/d06589b7fae346378709d0d0d1065052 [2018-12-09 01:03:46,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:03:46,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:03:46,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:03:46,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:03:46,181 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:03:46,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:03:46" (1/1) ... [2018-12-09 01:03:46,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770bfda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:46, skipping insertion in model container [2018-12-09 01:03:46,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:03:46" (1/1) ... [2018-12-09 01:03:46,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:03:46,222 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:03:46,455 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:03:46,458 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:03:46,590 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:03:46,600 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:03:46,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:46 WrapperNode [2018-12-09 01:03:46,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:03:46,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:03:46,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:03:46,601 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:03:46,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:46" (1/1) ... [2018-12-09 01:03:46,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:46" (1/1) ... [2018-12-09 01:03:46,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:03:46,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:03:46,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:03:46,624 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:03:46,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:46" (1/1) ... [2018-12-09 01:03:46,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:46" (1/1) ... [2018-12-09 01:03:46,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:46" (1/1) ... [2018-12-09 01:03:46,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:46" (1/1) ... [2018-12-09 01:03:46,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:46" (1/1) ... [2018-12-09 01:03:46,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:46" (1/1) ... [2018-12-09 01:03:46,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:46" (1/1) ... [2018-12-09 01:03:46,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:03:46,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:03:46,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:03:46,676 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:03:46,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:03:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:03:46,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:03:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-09 01:03:46,716 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-09 01:03:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:03:46,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:03:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:03:46,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:03:47,703 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:03:47,704 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 01:03:47,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:03:47 BoogieIcfgContainer [2018-12-09 01:03:47,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:03:47,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:03:47,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:03:47,707 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:03:47,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:03:46" (1/3) ... [2018-12-09 01:03:47,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153b088d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:03:47, skipping insertion in model container [2018-12-09 01:03:47,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:46" (2/3) ... [2018-12-09 01:03:47,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153b088d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:03:47, skipping insertion in model container [2018-12-09 01:03:47,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:03:47" (3/3) ... [2018-12-09 01:03:47,709 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label06_true-unreach-call.c [2018-12-09 01:03:47,715 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:03:47,721 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:03:47,731 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:03:47,754 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:03:47,754 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:03:47,754 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:03:47,754 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:03:47,755 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:03:47,755 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:03:47,755 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:03:47,755 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:03:47,772 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2018-12-09 01:03:47,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-09 01:03:47,779 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:03:47,779 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:03:47,781 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:03:47,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:03:47,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1780384174, now seen corresponding path program 1 times [2018-12-09 01:03:47,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:03:47,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:03:47,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:03:47,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:03:47,815 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:03:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:03:48,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:03:48,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:03:48,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 01:03:48,012 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:03:48,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 01:03:48,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 01:03:48,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:03:48,026 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 3 states. [2018-12-09 01:03:48,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:03:48,722 INFO L93 Difference]: Finished difference Result 779 states and 1369 transitions. [2018-12-09 01:03:48,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 01:03:48,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2018-12-09 01:03:48,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:03:48,732 INFO L225 Difference]: With dead ends: 779 [2018-12-09 01:03:48,733 INFO L226 Difference]: Without dead ends: 425 [2018-12-09 01:03:48,738 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:03:48,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2018-12-09 01:03:48,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 420. [2018-12-09 01:03:48,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2018-12-09 01:03:48,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 672 transitions. [2018-12-09 01:03:48,788 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 672 transitions. Word has length 69 [2018-12-09 01:03:48,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:03:48,788 INFO L480 AbstractCegarLoop]: Abstraction has 420 states and 672 transitions. [2018-12-09 01:03:48,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 01:03:48,789 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 672 transitions. [2018-12-09 01:03:48,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-12-09 01:03:48,793 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:03:48,793 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 01:03:48,793 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:03:48,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:03:48,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1517741782, now seen corresponding path program 1 times [2018-12-09 01:03:48,794 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:03:48,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:03:48,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:03:48,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:03:48,795 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:03:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:03:48,984 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:03:48,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:03:48,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 01:03:48,984 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:03:48,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 01:03:48,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 01:03:48,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:03:48,986 INFO L87 Difference]: Start difference. First operand 420 states and 672 transitions. Second operand 7 states. [2018-12-09 01:03:50,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:03:50,490 INFO L93 Difference]: Finished difference Result 1265 states and 2066 transitions. [2018-12-09 01:03:50,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 01:03:50,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2018-12-09 01:03:50,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:03:50,494 INFO L225 Difference]: With dead ends: 1265 [2018-12-09 01:03:50,494 INFO L226 Difference]: Without dead ends: 851 [2018-12-09 01:03:50,495 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-12-09 01:03:50,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2018-12-09 01:03:50,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 616. [2018-12-09 01:03:50,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2018-12-09 01:03:50,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 883 transitions. [2018-12-09 01:03:50,515 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 883 transitions. Word has length 143 [2018-12-09 01:03:50,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:03:50,516 INFO L480 AbstractCegarLoop]: Abstraction has 616 states and 883 transitions. [2018-12-09 01:03:50,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 01:03:50,516 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 883 transitions. [2018-12-09 01:03:50,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-12-09 01:03:50,518 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:03:50,518 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:03:50,518 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:03:50,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:03:50,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1457769866, now seen corresponding path program 1 times [2018-12-09 01:03:50,519 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:03:50,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:03:50,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:03:50,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:03:50,520 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:03:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:03:50,621 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 124 proven. 68 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 01:03:50,621 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:03:50,621 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:03:50,622 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 216 with the following transitions: [2018-12-09 01:03:50,623 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [514], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:03:50,647 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:03:50,647 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:03:50,954 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 01:03:50,955 INFO L272 AbstractInterpreter]: Visited 79 different actions 79 times. Never merged. Never widened. Performed 845 root evaluator evaluations with a maximum evaluation depth of 14. Performed 845 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Never found a fixpoint. Largest state had 28 variables. [2018-12-09 01:03:50,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:03:50,962 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 01:03:51,249 INFO L227 lantSequenceWeakener]: Weakened 206 states. On average, predicates are now at 73.9% of their original sizes. [2018-12-09 01:03:51,250 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 01:03:51,278 INFO L418 sIntCurrentIteration]: We unified 214 AI predicates to 214 [2018-12-09 01:03:51,278 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 01:03:51,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 01:03:51,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-12-09 01:03:51,279 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:03:51,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 01:03:51,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 01:03:51,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 01:03:51,280 INFO L87 Difference]: Start difference. First operand 616 states and 883 transitions. Second operand 6 states. [2018-12-09 01:04:00,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:04:00,276 INFO L93 Difference]: Finished difference Result 1416 states and 1966 transitions. [2018-12-09 01:04:00,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 01:04:00,277 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 215 [2018-12-09 01:04:00,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:04:00,278 INFO L225 Difference]: With dead ends: 1416 [2018-12-09 01:04:00,278 INFO L226 Difference]: Without dead ends: 806 [2018-12-09 01:04:00,279 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 215 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:04:00,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-12-09 01:04:00,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 805. [2018-12-09 01:04:00,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2018-12-09 01:04:00,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1080 transitions. [2018-12-09 01:04:00,293 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1080 transitions. Word has length 215 [2018-12-09 01:04:00,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:04:00,293 INFO L480 AbstractCegarLoop]: Abstraction has 805 states and 1080 transitions. [2018-12-09 01:04:00,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 01:04:00,293 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1080 transitions. [2018-12-09 01:04:00,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-12-09 01:04:00,296 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:04:00,296 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:04:00,297 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:04:00,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:04:00,297 INFO L82 PathProgramCache]: Analyzing trace with hash 156853724, now seen corresponding path program 1 times [2018-12-09 01:04:00,297 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:04:00,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:04:00,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:04:00,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:04:00,298 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:04:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:04:00,489 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-12-09 01:04:00,490 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:04:00,490 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:04:00,490 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 260 with the following transitions: [2018-12-09 01:04:00,490 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:04:00,493 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:04:00,493 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:04:00,925 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:04:00,925 INFO L272 AbstractInterpreter]: Visited 125 different actions 366 times. Merged at 6 different actions 13 times. Never widened. Performed 4863 root evaluator evaluations with a maximum evaluation depth of 16. Performed 4863 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 3 fixpoints after 2 different actions. Largest state had 28 variables. [2018-12-09 01:04:00,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:04:00,928 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:04:00,928 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:04:00,928 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:04:00,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:04:00,936 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:04:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:04:01,008 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:04:05,202 WARN L180 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 118 DAG size of output: 31 [2018-12-09 01:04:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-12-09 01:04:05,259 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:04:05,331 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-12-09 01:04:05,357 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 01:04:05,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 9 [2018-12-09 01:04:05,357 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:04:05,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 01:04:05,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 01:04:05,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=47, Unknown=1, NotChecked=0, Total=72 [2018-12-09 01:04:05,358 INFO L87 Difference]: Start difference. First operand 805 states and 1080 transitions. Second operand 3 states. [2018-12-09 01:04:05,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:04:05,897 INFO L93 Difference]: Finished difference Result 1803 states and 2605 transitions. [2018-12-09 01:04:05,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 01:04:05,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 259 [2018-12-09 01:04:05,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:04:05,900 INFO L225 Difference]: With dead ends: 1803 [2018-12-09 01:04:05,900 INFO L226 Difference]: Without dead ends: 1193 [2018-12-09 01:04:05,901 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 517 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=24, Invalid=47, Unknown=1, NotChecked=0, Total=72 [2018-12-09 01:04:05,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2018-12-09 01:04:05,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1193. [2018-12-09 01:04:05,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2018-12-09 01:04:05,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1619 transitions. [2018-12-09 01:04:05,921 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1619 transitions. Word has length 259 [2018-12-09 01:04:05,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:04:05,921 INFO L480 AbstractCegarLoop]: Abstraction has 1193 states and 1619 transitions. [2018-12-09 01:04:05,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 01:04:05,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1619 transitions. [2018-12-09 01:04:05,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-12-09 01:04:05,924 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:04:05,924 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:04:05,924 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:04:05,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:04:05,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1021288321, now seen corresponding path program 1 times [2018-12-09 01:04:05,924 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:04:05,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:04:05,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:04:05,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:04:05,925 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:04:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:04:06,016 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-12-09 01:04:06,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:04:06,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 01:04:06,016 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:04:06,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 01:04:06,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 01:04:06,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:04:06,017 INFO L87 Difference]: Start difference. First operand 1193 states and 1619 transitions. Second operand 3 states. [2018-12-09 01:04:06,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:04:06,628 INFO L93 Difference]: Finished difference Result 2950 states and 4173 transitions. [2018-12-09 01:04:06,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 01:04:06,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 285 [2018-12-09 01:04:06,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:04:06,634 INFO L225 Difference]: With dead ends: 2950 [2018-12-09 01:04:06,635 INFO L226 Difference]: Without dead ends: 1952 [2018-12-09 01:04:06,636 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:04:06,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2018-12-09 01:04:06,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1948. [2018-12-09 01:04:06,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1948 states. [2018-12-09 01:04:06,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2559 transitions. [2018-12-09 01:04:06,670 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2559 transitions. Word has length 285 [2018-12-09 01:04:06,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:04:06,670 INFO L480 AbstractCegarLoop]: Abstraction has 1948 states and 2559 transitions. [2018-12-09 01:04:06,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 01:04:06,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2559 transitions. [2018-12-09 01:04:06,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-12-09 01:04:06,674 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:04:06,674 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:04:06,674 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:04:06,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:04:06,675 INFO L82 PathProgramCache]: Analyzing trace with hash 2109616658, now seen corresponding path program 1 times [2018-12-09 01:04:06,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:04:06,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:04:06,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:04:06,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:04:06,675 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:04:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:04:06,854 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-12-09 01:04:06,854 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:04:06,854 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:04:06,854 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 288 with the following transitions: [2018-12-09 01:04:06,854 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [618], [623], [625], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:04:06,858 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:04:06,858 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:04:07,011 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 01:04:07,011 INFO L272 AbstractInterpreter]: Visited 124 different actions 242 times. Merged at 4 different actions 4 times. Never widened. Performed 3111 root evaluator evaluations with a maximum evaluation depth of 16. Performed 3111 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-12-09 01:04:07,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:04:07,013 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 01:04:07,224 INFO L227 lantSequenceWeakener]: Weakened 282 states. On average, predicates are now at 75.65% of their original sizes. [2018-12-09 01:04:07,224 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 01:04:07,283 INFO L418 sIntCurrentIteration]: We unified 286 AI predicates to 286 [2018-12-09 01:04:07,284 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 01:04:07,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 01:04:07,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-09 01:04:07,284 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:04:07,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 01:04:07,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 01:04:07,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 01:04:07,285 INFO L87 Difference]: Start difference. First operand 1948 states and 2559 transitions. Second operand 10 states. [2018-12-09 01:04:44,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:04:44,529 INFO L93 Difference]: Finished difference Result 4090 states and 5481 transitions. [2018-12-09 01:04:44,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-09 01:04:44,529 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 287 [2018-12-09 01:04:44,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:04:44,533 INFO L225 Difference]: With dead ends: 4090 [2018-12-09 01:04:44,533 INFO L226 Difference]: Without dead ends: 2337 [2018-12-09 01:04:44,535 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 295 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-09 01:04:44,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2018-12-09 01:04:44,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2331. [2018-12-09 01:04:44,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2331 states. [2018-12-09 01:04:44,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 3028 transitions. [2018-12-09 01:04:44,562 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 3028 transitions. Word has length 287 [2018-12-09 01:04:44,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:04:44,562 INFO L480 AbstractCegarLoop]: Abstraction has 2331 states and 3028 transitions. [2018-12-09 01:04:44,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 01:04:44,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 3028 transitions. [2018-12-09 01:04:44,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-12-09 01:04:44,564 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:04:44,564 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:04:44,564 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:04:44,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:04:44,565 INFO L82 PathProgramCache]: Analyzing trace with hash 157251694, now seen corresponding path program 1 times [2018-12-09 01:04:44,565 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:04:44,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:04:44,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:04:44,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:04:44,565 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:04:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:04:44,686 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 128 proven. 83 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 01:04:44,686 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:04:44,687 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:04:44,687 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 291 with the following transitions: [2018-12-09 01:04:44,687 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [578], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:04:44,689 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:04:44,689 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:04:44,852 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:04:44,852 INFO L272 AbstractInterpreter]: Visited 140 different actions 415 times. Merged at 6 different actions 17 times. Never widened. Performed 5844 root evaluator evaluations with a maximum evaluation depth of 10. Performed 5844 inverse root evaluator evaluations with a maximum inverse evaluation depth of 10. Found 3 fixpoints after 2 different actions. Largest state had 28 variables. [2018-12-09 01:04:44,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:04:44,853 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:04:44,853 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:04:44,853 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:04:44,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:04:44,860 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:04:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:04:44,907 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:04:44,965 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 212 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:04:44,966 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:04:45,083 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 212 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:04:45,098 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 01:04:45,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-12-09 01:04:45,098 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 01:04:45,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 01:04:45,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 01:04:45,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-12-09 01:04:45,099 INFO L87 Difference]: Start difference. First operand 2331 states and 3028 transitions. Second operand 11 states. [2018-12-09 01:04:52,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:04:52,121 INFO L93 Difference]: Finished difference Result 10390 states and 15897 transitions. [2018-12-09 01:04:52,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-12-09 01:04:52,122 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 290 [2018-12-09 01:04:52,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:04:52,141 INFO L225 Difference]: With dead ends: 10390 [2018-12-09 01:04:52,141 INFO L226 Difference]: Without dead ends: 8253 [2018-12-09 01:04:52,147 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 597 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1170 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=664, Invalid=2876, Unknown=0, NotChecked=0, Total=3540 [2018-12-09 01:04:52,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8253 states. [2018-12-09 01:04:52,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8253 to 6850. [2018-12-09 01:04:52,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6850 states. [2018-12-09 01:04:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6850 states to 6850 states and 9820 transitions. [2018-12-09 01:04:52,254 INFO L78 Accepts]: Start accepts. Automaton has 6850 states and 9820 transitions. Word has length 290 [2018-12-09 01:04:52,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:04:52,254 INFO L480 AbstractCegarLoop]: Abstraction has 6850 states and 9820 transitions. [2018-12-09 01:04:52,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 01:04:52,255 INFO L276 IsEmpty]: Start isEmpty. Operand 6850 states and 9820 transitions. [2018-12-09 01:04:52,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2018-12-09 01:04:52,260 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:04:52,260 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 01:04:52,260 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:04:52,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:04:52,261 INFO L82 PathProgramCache]: Analyzing trace with hash 994096360, now seen corresponding path program 1 times [2018-12-09 01:04:52,261 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:04:52,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:04:52,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:04:52,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:04:52,261 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:04:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:04:52,388 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 367 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-12-09 01:04:52,388 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:04:52,388 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:04:52,388 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 370 with the following transitions: [2018-12-09 01:04:52,389 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [578], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:04:52,390 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:04:52,391 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:04:52,638 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 01:04:52,638 INFO L272 AbstractInterpreter]: Visited 125 different actions 368 times. Merged at 6 different actions 13 times. Never widened. Performed 4893 root evaluator evaluations with a maximum evaluation depth of 16. Performed 4893 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 3 fixpoints after 2 different actions. Largest state had 28 variables. [2018-12-09 01:04:52,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:04:52,641 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 01:04:52,861 INFO L227 lantSequenceWeakener]: Weakened 366 states. On average, predicates are now at 77.79% of their original sizes. [2018-12-09 01:04:52,862 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 01:04:52,900 INFO L418 sIntCurrentIteration]: We unified 368 AI predicates to 368 [2018-12-09 01:04:52,900 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 01:04:52,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 01:04:52,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-12-09 01:04:52,901 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:04:52,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 01:04:52,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 01:04:52,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 01:04:52,901 INFO L87 Difference]: Start difference. First operand 6850 states and 9820 transitions. Second operand 9 states. [2018-12-09 01:05:33,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:05:33,708 INFO L93 Difference]: Finished difference Result 16050 states and 23477 transitions. [2018-12-09 01:05:33,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 01:05:33,708 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 369 [2018-12-09 01:05:33,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:05:33,728 INFO L225 Difference]: With dead ends: 16050 [2018-12-09 01:05:33,728 INFO L226 Difference]: Without dead ends: 10157 [2018-12-09 01:05:33,736 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 375 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-12-09 01:05:33,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10157 states. [2018-12-09 01:05:33,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10157 to 10112. [2018-12-09 01:05:33,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10112 states. [2018-12-09 01:05:33,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10112 states to 10112 states and 13878 transitions. [2018-12-09 01:05:33,857 INFO L78 Accepts]: Start accepts. Automaton has 10112 states and 13878 transitions. Word has length 369 [2018-12-09 01:05:33,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:05:33,858 INFO L480 AbstractCegarLoop]: Abstraction has 10112 states and 13878 transitions. [2018-12-09 01:05:33,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 01:05:33,858 INFO L276 IsEmpty]: Start isEmpty. Operand 10112 states and 13878 transitions. [2018-12-09 01:05:33,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2018-12-09 01:05:33,864 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:05:33,865 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:05:33,865 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:05:33,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:05:33,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1808661004, now seen corresponding path program 1 times [2018-12-09 01:05:33,865 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:05:33,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:05:33,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:05:33,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:05:33,866 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:05:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:05:34,020 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 251 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:05:34,020 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:05:34,020 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:05:34,020 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 376 with the following transitions: [2018-12-09 01:05:34,021 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [870], [874], [878], [889], [893], [897], [901], [905], [909], [913], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [971], [975], [979], [983], [987], [991], [1002], [1013], [1016], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:05:34,023 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:05:34,023 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:05:34,278 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 01:05:34,278 INFO L272 AbstractInterpreter]: Visited 185 different actions 542 times. Merged at 4 different actions 7 times. Never widened. Performed 7942 root evaluator evaluations with a maximum evaluation depth of 9. Performed 7942 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-12-09 01:05:34,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:05:34,280 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 01:05:34,498 INFO L227 lantSequenceWeakener]: Weakened 372 states. On average, predicates are now at 75.46% of their original sizes. [2018-12-09 01:05:34,498 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 01:05:34,557 INFO L418 sIntCurrentIteration]: We unified 374 AI predicates to 374 [2018-12-09 01:05:34,557 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 01:05:34,557 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 01:05:34,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2018-12-09 01:05:34,558 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:05:34,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 01:05:34,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 01:05:34,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-12-09 01:05:34,558 INFO L87 Difference]: Start difference. First operand 10112 states and 13878 transitions. Second operand 12 states. [2018-12-09 01:06:12,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:06:12,621 INFO L93 Difference]: Finished difference Result 21214 states and 29330 transitions. [2018-12-09 01:06:12,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-12-09 01:06:12,621 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 375 [2018-12-09 01:06:12,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:06:12,643 INFO L225 Difference]: With dead ends: 21214 [2018-12-09 01:06:12,643 INFO L226 Difference]: Without dead ends: 12058 [2018-12-09 01:06:12,651 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 388 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2018-12-09 01:06:12,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12058 states. [2018-12-09 01:06:12,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12058 to 12037. [2018-12-09 01:06:12,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12037 states. [2018-12-09 01:06:12,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12037 states to 12037 states and 16166 transitions. [2018-12-09 01:06:12,780 INFO L78 Accepts]: Start accepts. Automaton has 12037 states and 16166 transitions. Word has length 375 [2018-12-09 01:06:12,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:06:12,780 INFO L480 AbstractCegarLoop]: Abstraction has 12037 states and 16166 transitions. [2018-12-09 01:06:12,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 01:06:12,781 INFO L276 IsEmpty]: Start isEmpty. Operand 12037 states and 16166 transitions. [2018-12-09 01:06:12,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2018-12-09 01:06:12,788 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:06:12,789 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:06:12,789 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:06:12,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:06:12,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1719615827, now seen corresponding path program 1 times [2018-12-09 01:06:12,789 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:06:12,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:06:12,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:06:12,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:06:12,790 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:06:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:06:13,160 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 385 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-12-09 01:06:13,160 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:06:13,160 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:06:13,160 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 386 with the following transitions: [2018-12-09 01:06:13,161 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [707], [710], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:06:13,162 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:06:13,162 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:06:13,643 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:06:13,643 INFO L272 AbstractInterpreter]: Visited 128 different actions 624 times. Merged at 7 different actions 32 times. Widened at 1 different actions 1 times. Performed 8695 root evaluator evaluations with a maximum evaluation depth of 16. Performed 8695 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 8 fixpoints after 2 different actions. Largest state had 28 variables. [2018-12-09 01:06:13,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:06:13,645 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:06:13,645 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:06:13,645 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:06:13,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:06:13,652 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:06:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:06:13,706 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:06:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 385 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-12-09 01:06:13,779 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:06:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 385 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-12-09 01:06:14,011 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 01:06:14,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 18 [2018-12-09 01:06:14,012 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 01:06:14,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-09 01:06:14,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-09 01:06:14,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2018-12-09 01:06:14,012 INFO L87 Difference]: Start difference. First operand 12037 states and 16166 transitions. Second operand 16 states. [2018-12-09 01:06:18,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:06:18,511 INFO L93 Difference]: Finished difference Result 22274 states and 31012 transitions. [2018-12-09 01:06:18,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-12-09 01:06:18,512 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 385 [2018-12-09 01:06:18,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:06:18,534 INFO L225 Difference]: With dead ends: 22274 [2018-12-09 01:06:18,535 INFO L226 Difference]: Without dead ends: 13118 [2018-12-09 01:06:18,545 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 836 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=483, Invalid=1773, Unknown=0, NotChecked=0, Total=2256 [2018-12-09 01:06:18,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13118 states. [2018-12-09 01:06:18,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13118 to 13084. [2018-12-09 01:06:18,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13084 states. [2018-12-09 01:06:18,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13084 states to 13084 states and 17703 transitions. [2018-12-09 01:06:18,688 INFO L78 Accepts]: Start accepts. Automaton has 13084 states and 17703 transitions. Word has length 385 [2018-12-09 01:06:18,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:06:18,688 INFO L480 AbstractCegarLoop]: Abstraction has 13084 states and 17703 transitions. [2018-12-09 01:06:18,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-09 01:06:18,688 INFO L276 IsEmpty]: Start isEmpty. Operand 13084 states and 17703 transitions. [2018-12-09 01:06:18,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2018-12-09 01:06:18,695 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:06:18,696 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:06:18,696 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:06:18,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:06:18,696 INFO L82 PathProgramCache]: Analyzing trace with hash -26453255, now seen corresponding path program 1 times [2018-12-09 01:06:18,696 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:06:18,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:06:18,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:06:18,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:06:18,697 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:06:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:06:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-12-09 01:06:18,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:06:18,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 01:06:18,808 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:06:18,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 01:06:18,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 01:06:18,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:06:18,809 INFO L87 Difference]: Start difference. First operand 13084 states and 17703 transitions. Second operand 3 states. [2018-12-09 01:06:19,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:06:19,336 INFO L93 Difference]: Finished difference Result 25549 states and 35607 transitions. [2018-12-09 01:06:19,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 01:06:19,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 408 [2018-12-09 01:06:19,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:06:19,358 INFO L225 Difference]: With dead ends: 25549 [2018-12-09 01:06:19,358 INFO L226 Difference]: Without dead ends: 14001 [2018-12-09 01:06:19,372 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:06:19,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14001 states. [2018-12-09 01:06:19,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14001 to 13997. [2018-12-09 01:06:19,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13997 states. [2018-12-09 01:06:19,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13997 states to 13997 states and 18667 transitions. [2018-12-09 01:06:19,529 INFO L78 Accepts]: Start accepts. Automaton has 13997 states and 18667 transitions. Word has length 408 [2018-12-09 01:06:19,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:06:19,530 INFO L480 AbstractCegarLoop]: Abstraction has 13997 states and 18667 transitions. [2018-12-09 01:06:19,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 01:06:19,530 INFO L276 IsEmpty]: Start isEmpty. Operand 13997 states and 18667 transitions. [2018-12-09 01:06:19,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2018-12-09 01:06:19,538 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:06:19,538 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:06:19,538 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:06:19,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:06:19,539 INFO L82 PathProgramCache]: Analyzing trace with hash 488083270, now seen corresponding path program 1 times [2018-12-09 01:06:19,539 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:06:19,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:06:19,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:06:19,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:06:19,539 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:06:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:06:19,690 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 191 proven. 216 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-12-09 01:06:19,690 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:06:19,690 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:06:19,691 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 422 with the following transitions: [2018-12-09 01:06:19,691 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [653], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:06:19,692 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:06:19,692 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:06:19,967 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:06:19,967 INFO L272 AbstractInterpreter]: Visited 143 different actions 565 times. Merged at 7 different actions 27 times. Never widened. Performed 7974 root evaluator evaluations with a maximum evaluation depth of 16. Performed 7974 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 7 fixpoints after 3 different actions. Largest state had 28 variables. [2018-12-09 01:06:19,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:06:19,969 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:06:19,969 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:06:19,969 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:06:19,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:06:19,975 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:06:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:06:20,032 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:06:22,748 WARN L180 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 33 DAG size of output: 13 [2018-12-09 01:06:22,822 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 343 proven. 106 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-12-09 01:06:22,822 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:06:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 295 proven. 107 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-12-09 01:06:23,009 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 01:06:23,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 5] total 12 [2018-12-09 01:06:23,010 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 01:06:23,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 01:06:23,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 01:06:23,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=95, Unknown=3, NotChecked=0, Total=132 [2018-12-09 01:06:23,010 INFO L87 Difference]: Start difference. First operand 13997 states and 18667 transitions. Second operand 10 states. [2018-12-09 01:06:23,352 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-09 01:06:24,231 WARN L180 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-09 01:07:01,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:07:01,994 INFO L93 Difference]: Finished difference Result 31980 states and 45457 transitions. [2018-12-09 01:07:01,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-12-09 01:07:01,994 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 421 [2018-12-09 01:07:01,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:07:02,034 INFO L225 Difference]: With dead ends: 31980 [2018-12-09 01:07:02,034 INFO L226 Difference]: Without dead ends: 19335 [2018-12-09 01:07:02,049 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 849 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=167, Invalid=428, Unknown=5, NotChecked=0, Total=600 [2018-12-09 01:07:02,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19335 states. [2018-12-09 01:07:02,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19335 to 19229. [2018-12-09 01:07:02,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19229 states. [2018-12-09 01:07:02,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19229 states to 19229 states and 27237 transitions. [2018-12-09 01:07:02,275 INFO L78 Accepts]: Start accepts. Automaton has 19229 states and 27237 transitions. Word has length 421 [2018-12-09 01:07:02,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:07:02,275 INFO L480 AbstractCegarLoop]: Abstraction has 19229 states and 27237 transitions. [2018-12-09 01:07:02,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 01:07:02,275 INFO L276 IsEmpty]: Start isEmpty. Operand 19229 states and 27237 transitions. [2018-12-09 01:07:02,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2018-12-09 01:07:02,287 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:07:02,287 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 01:07:02,288 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:07:02,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:02,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1119795789, now seen corresponding path program 1 times [2018-12-09 01:07:02,288 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:07:02,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:02,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:02,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:02,288 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:07:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:02,462 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 410 proven. 110 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 01:07:02,462 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:02,462 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:07:02,463 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 430 with the following transitions: [2018-12-09 01:07:02,463 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [707], [710], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [780], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:07:02,464 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:07:02,464 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:07:02,706 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:07:02,706 INFO L272 AbstractInterpreter]: Visited 140 different actions 411 times. Merged at 6 different actions 13 times. Never widened. Performed 5500 root evaluator evaluations with a maximum evaluation depth of 16. Performed 5500 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 3 fixpoints after 2 different actions. Largest state had 28 variables. [2018-12-09 01:07:02,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:02,708 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:07:02,708 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:02,708 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:07:02,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:02,714 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:07:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:02,772 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:07:02,857 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 411 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-12-09 01:07:02,857 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:07:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 411 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-12-09 01:07:02,996 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 01:07:02,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2018-12-09 01:07:02,997 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 01:07:02,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 01:07:02,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 01:07:02,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:07:02,997 INFO L87 Difference]: Start difference. First operand 19229 states and 27237 transitions. Second operand 6 states. [2018-12-09 01:07:03,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:07:03,798 INFO L93 Difference]: Finished difference Result 36295 states and 54143 transitions. [2018-12-09 01:07:03,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 01:07:03,799 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 429 [2018-12-09 01:07:03,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:07:03,837 INFO L225 Difference]: With dead ends: 36295 [2018-12-09 01:07:03,837 INFO L226 Difference]: Without dead ends: 19176 [2018-12-09 01:07:03,861 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 871 GetRequests, 859 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-12-09 01:07:03,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19176 states. [2018-12-09 01:07:04,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19176 to 18687. [2018-12-09 01:07:04,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18687 states. [2018-12-09 01:07:04,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18687 states to 18687 states and 24447 transitions. [2018-12-09 01:07:04,109 INFO L78 Accepts]: Start accepts. Automaton has 18687 states and 24447 transitions. Word has length 429 [2018-12-09 01:07:04,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:07:04,109 INFO L480 AbstractCegarLoop]: Abstraction has 18687 states and 24447 transitions. [2018-12-09 01:07:04,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 01:07:04,109 INFO L276 IsEmpty]: Start isEmpty. Operand 18687 states and 24447 transitions. [2018-12-09 01:07:04,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2018-12-09 01:07:04,119 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:07:04,119 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 01:07:04,120 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:07:04,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:04,120 INFO L82 PathProgramCache]: Analyzing trace with hash 279256228, now seen corresponding path program 1 times [2018-12-09 01:07:04,120 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:07:04,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:04,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:04,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:04,121 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:07:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:04,485 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 411 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-12-09 01:07:04,486 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:04,486 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:07:04,486 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 431 with the following transitions: [2018-12-09 01:07:04,486 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [707], [710], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [784], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:07:04,488 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:07:04,488 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:07:04,953 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:07:04,953 INFO L272 AbstractInterpreter]: Visited 143 different actions 699 times. Merged at 7 different actions 31 times. Never widened. Performed 9868 root evaluator evaluations with a maximum evaluation depth of 16. Performed 9868 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 8 fixpoints after 2 different actions. Largest state had 28 variables. [2018-12-09 01:07:04,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:04,954 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:07:04,954 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:04,955 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:07:04,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:04,961 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:07:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:05,016 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:07:05,141 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 197 proven. 4 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-12-09 01:07:05,141 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:07:05,375 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 197 proven. 216 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-12-09 01:07:05,390 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 01:07:05,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 8] total 21 [2018-12-09 01:07:05,390 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 01:07:05,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-09 01:07:05,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-09 01:07:05,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2018-12-09 01:07:05,391 INFO L87 Difference]: Start difference. First operand 18687 states and 24447 transitions. Second operand 16 states. [2018-12-09 01:07:10,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:07:10,480 INFO L93 Difference]: Finished difference Result 44745 states and 61427 transitions. [2018-12-09 01:07:10,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-12-09 01:07:10,480 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 430 [2018-12-09 01:07:10,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:07:10,538 INFO L225 Difference]: With dead ends: 44745 [2018-12-09 01:07:10,539 INFO L226 Difference]: Without dead ends: 28376 [2018-12-09 01:07:10,560 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 981 GetRequests, 896 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2228 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1367, Invalid=5943, Unknown=0, NotChecked=0, Total=7310 [2018-12-09 01:07:10,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28376 states. [2018-12-09 01:07:10,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28376 to 27305. [2018-12-09 01:07:10,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27305 states. [2018-12-09 01:07:10,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27305 states to 27305 states and 36081 transitions. [2018-12-09 01:07:10,932 INFO L78 Accepts]: Start accepts. Automaton has 27305 states and 36081 transitions. Word has length 430 [2018-12-09 01:07:10,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:07:10,932 INFO L480 AbstractCegarLoop]: Abstraction has 27305 states and 36081 transitions. [2018-12-09 01:07:10,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-09 01:07:10,932 INFO L276 IsEmpty]: Start isEmpty. Operand 27305 states and 36081 transitions. [2018-12-09 01:07:10,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2018-12-09 01:07:10,955 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:07:10,955 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:07:10,955 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:07:10,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:10,955 INFO L82 PathProgramCache]: Analyzing trace with hash -252575779, now seen corresponding path program 1 times [2018-12-09 01:07:10,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:07:10,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:10,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:10,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:10,956 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:07:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:11,083 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 262 proven. 2 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2018-12-09 01:07:11,083 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:11,084 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:07:11,084 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 499 with the following transitions: [2018-12-09 01:07:11,084 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [578], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [800], [805], [807], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:07:11,085 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:07:11,085 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:07:11,640 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:07:11,640 INFO L272 AbstractInterpreter]: Visited 148 different actions 724 times. Merged at 8 different actions 32 times. Never widened. Performed 10309 root evaluator evaluations with a maximum evaluation depth of 16. Performed 10309 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 11 fixpoints after 3 different actions. Largest state had 28 variables. [2018-12-09 01:07:11,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:11,642 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:07:11,642 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:11,642 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:07:11,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:11,648 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:07:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:11,712 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:07:11,770 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 455 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2018-12-09 01:07:11,770 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:07:11,843 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 262 proven. 2 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2018-12-09 01:07:11,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 01:07:11,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 3 [2018-12-09 01:07:11,858 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:07:11,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 01:07:11,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 01:07:11,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:07:11,859 INFO L87 Difference]: Start difference. First operand 27305 states and 36081 transitions. Second operand 3 states. [2018-12-09 01:07:12,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:07:12,501 INFO L93 Difference]: Finished difference Result 52837 states and 69981 transitions. [2018-12-09 01:07:12,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 01:07:12,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 498 [2018-12-09 01:07:12,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:07:12,544 INFO L225 Difference]: With dead ends: 52837 [2018-12-09 01:07:12,544 INFO L226 Difference]: Without dead ends: 24910 [2018-12-09 01:07:12,577 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 998 GetRequests, 997 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:07:12,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24910 states. [2018-12-09 01:07:12,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24910 to 24908. [2018-12-09 01:07:12,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24908 states. [2018-12-09 01:07:12,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24908 states to 24908 states and 31797 transitions. [2018-12-09 01:07:12,868 INFO L78 Accepts]: Start accepts. Automaton has 24908 states and 31797 transitions. Word has length 498 [2018-12-09 01:07:12,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:07:12,869 INFO L480 AbstractCegarLoop]: Abstraction has 24908 states and 31797 transitions. [2018-12-09 01:07:12,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 01:07:12,869 INFO L276 IsEmpty]: Start isEmpty. Operand 24908 states and 31797 transitions. [2018-12-09 01:07:12,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2018-12-09 01:07:12,899 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:07:12,899 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:07:12,899 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:07:12,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:12,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1206973787, now seen corresponding path program 1 times [2018-12-09 01:07:12,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:07:12,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:12,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:12,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:12,901 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:07:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:13,454 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-12-09 01:07:13,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:13,454 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:07:13,454 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 522 with the following transitions: [2018-12-09 01:07:13,454 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [707], [710], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [811], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:07:13,456 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:07:13,456 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:07:13,915 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:07:13,915 INFO L272 AbstractInterpreter]: Visited 149 different actions 737 times. Merged at 8 different actions 40 times. Widened at 1 different actions 1 times. Performed 10394 root evaluator evaluations with a maximum evaluation depth of 16. Performed 10394 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 11 fixpoints after 3 different actions. Largest state had 28 variables. [2018-12-09 01:07:13,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:13,918 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:07:13,918 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:13,918 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:07:13,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:13,925 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:07:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:13,990 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:07:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-12-09 01:07:14,457 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:07:15,003 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-12-09 01:07:15,019 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 01:07:15,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 8] total 20 [2018-12-09 01:07:15,019 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 01:07:15,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 01:07:15,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 01:07:15,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2018-12-09 01:07:15,020 INFO L87 Difference]: Start difference. First operand 24908 states and 31797 transitions. Second operand 15 states. [2018-12-09 01:07:18,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:07:18,352 INFO L93 Difference]: Finished difference Result 48910 states and 62696 transitions. [2018-12-09 01:07:18,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-12-09 01:07:18,353 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 521 [2018-12-09 01:07:18,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:07:18,397 INFO L225 Difference]: With dead ends: 48910 [2018-12-09 01:07:18,397 INFO L226 Difference]: Without dead ends: 26112 [2018-12-09 01:07:18,423 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1098 GetRequests, 1050 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=518, Invalid=1738, Unknown=0, NotChecked=0, Total=2256 [2018-12-09 01:07:18,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26112 states. [2018-12-09 01:07:18,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26112 to 25858. [2018-12-09 01:07:18,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25858 states. [2018-12-09 01:07:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25858 states to 25858 states and 32784 transitions. [2018-12-09 01:07:18,744 INFO L78 Accepts]: Start accepts. Automaton has 25858 states and 32784 transitions. Word has length 521 [2018-12-09 01:07:18,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:07:18,744 INFO L480 AbstractCegarLoop]: Abstraction has 25858 states and 32784 transitions. [2018-12-09 01:07:18,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 01:07:18,744 INFO L276 IsEmpty]: Start isEmpty. Operand 25858 states and 32784 transitions. [2018-12-09 01:07:18,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2018-12-09 01:07:18,767 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:07:18,767 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:07:18,767 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:07:18,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:18,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1716500212, now seen corresponding path program 1 times [2018-12-09 01:07:18,767 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:07:18,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:18,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:18,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:18,768 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:07:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-12-09 01:07:19,201 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:19,201 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:07:19,201 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 523 with the following transitions: [2018-12-09 01:07:19,201 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [707], [710], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [800], [803], [807], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:07:19,203 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:07:19,203 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:07:19,660 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:07:19,660 INFO L272 AbstractInterpreter]: Visited 150 different actions 737 times. Merged at 8 different actions 39 times. Widened at 1 different actions 1 times. Performed 10317 root evaluator evaluations with a maximum evaluation depth of 16. Performed 10317 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 11 fixpoints after 3 different actions. Largest state had 28 variables. [2018-12-09 01:07:19,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:19,661 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:07:19,661 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:19,661 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:07:19,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:19,668 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:07:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:19,733 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:07:20,124 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-12-09 01:07:20,124 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:07:20,492 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-12-09 01:07:20,507 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 01:07:20,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 9] total 22 [2018-12-09 01:07:20,507 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 01:07:20,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-09 01:07:20,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-09 01:07:20,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2018-12-09 01:07:20,508 INFO L87 Difference]: Start difference. First operand 25858 states and 32784 transitions. Second operand 17 states. [2018-12-09 01:07:25,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:07:25,061 INFO L93 Difference]: Finished difference Result 50658 states and 64635 transitions. [2018-12-09 01:07:25,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-12-09 01:07:25,061 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 522 [2018-12-09 01:07:25,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:07:25,112 INFO L225 Difference]: With dead ends: 50658 [2018-12-09 01:07:25,112 INFO L226 Difference]: Without dead ends: 26910 [2018-12-09 01:07:25,143 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1101 GetRequests, 1051 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=563, Invalid=1789, Unknown=0, NotChecked=0, Total=2352 [2018-12-09 01:07:25,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26910 states. [2018-12-09 01:07:25,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26910 to 26452. [2018-12-09 01:07:25,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26452 states. [2018-12-09 01:07:25,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26452 states to 26452 states and 33251 transitions. [2018-12-09 01:07:25,470 INFO L78 Accepts]: Start accepts. Automaton has 26452 states and 33251 transitions. Word has length 522 [2018-12-09 01:07:25,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:07:25,470 INFO L480 AbstractCegarLoop]: Abstraction has 26452 states and 33251 transitions. [2018-12-09 01:07:25,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-09 01:07:25,471 INFO L276 IsEmpty]: Start isEmpty. Operand 26452 states and 33251 transitions. [2018-12-09 01:07:25,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2018-12-09 01:07:25,494 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:07:25,495 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 01:07:25,495 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:07:25,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:25,495 INFO L82 PathProgramCache]: Analyzing trace with hash 2121603265, now seen corresponding path program 1 times [2018-12-09 01:07:25,495 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:07:25,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:25,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:25,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:25,496 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:07:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:25,669 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 413 proven. 78 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2018-12-09 01:07:25,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:25,670 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:07:25,670 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 531 with the following transitions: [2018-12-09 01:07:25,670 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [530], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [777], [781], [785], [789], [793], [797], [808], [812], [816], [819], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:07:25,671 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:07:25,671 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:07:25,957 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:07:25,957 INFO L272 AbstractInterpreter]: Visited 153 different actions 609 times. Merged at 8 different actions 31 times. Widened at 1 different actions 1 times. Performed 8622 root evaluator evaluations with a maximum evaluation depth of 16. Performed 8622 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 9 fixpoints after 3 different actions. Largest state had 28 variables. [2018-12-09 01:07:25,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:25,959 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:07:25,959 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:25,959 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:07:25,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:25,965 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:07:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:26,039 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:07:26,176 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 644 proven. 2 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2018-12-09 01:07:26,177 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:07:26,316 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 413 proven. 78 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2018-12-09 01:07:26,331 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 01:07:26,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2018-12-09 01:07:26,331 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 01:07:26,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 01:07:26,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 01:07:26,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-09 01:07:26,332 INFO L87 Difference]: Start difference. First operand 26452 states and 33251 transitions. Second operand 9 states. [2018-12-09 01:07:28,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:07:28,748 INFO L93 Difference]: Finished difference Result 57351 states and 82500 transitions. [2018-12-09 01:07:28,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 01:07:28,749 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 530 [2018-12-09 01:07:28,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:07:28,856 INFO L225 Difference]: With dead ends: 57351 [2018-12-09 01:07:28,856 INFO L226 Difference]: Without dead ends: 32435 [2018-12-09 01:07:28,902 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 1061 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2018-12-09 01:07:28,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32435 states. [2018-12-09 01:07:29,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32435 to 31992. [2018-12-09 01:07:29,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31992 states. [2018-12-09 01:07:29,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31992 states to 31992 states and 47081 transitions. [2018-12-09 01:07:29,579 INFO L78 Accepts]: Start accepts. Automaton has 31992 states and 47081 transitions. Word has length 530 [2018-12-09 01:07:29,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:07:29,580 INFO L480 AbstractCegarLoop]: Abstraction has 31992 states and 47081 transitions. [2018-12-09 01:07:29,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 01:07:29,580 INFO L276 IsEmpty]: Start isEmpty. Operand 31992 states and 47081 transitions. [2018-12-09 01:07:29,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2018-12-09 01:07:29,619 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:07:29,620 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:07:29,620 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:07:29,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:29,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1553570919, now seen corresponding path program 1 times [2018-12-09 01:07:29,620 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:07:29,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:29,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:29,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:29,621 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:07:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:30,192 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-12-09 01:07:30,192 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:30,192 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:07:30,192 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 555 with the following transitions: [2018-12-09 01:07:30,192 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [707], [710], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [870], [874], [878], [889], [893], [897], [901], [905], [909], [913], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [963], [968], [970], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:07:30,194 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:07:30,194 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:07:30,712 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:07:30,712 INFO L272 AbstractInterpreter]: Visited 182 different actions 898 times. Merged at 8 different actions 40 times. Widened at 1 different actions 1 times. Performed 13076 root evaluator evaluations with a maximum evaluation depth of 16. Performed 13076 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 11 fixpoints after 3 different actions. Largest state had 28 variables. [2018-12-09 01:07:30,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:30,713 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:07:30,713 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:30,713 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:07:30,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:30,719 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:07:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:30,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:07:30,991 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-12-09 01:07:30,992 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:07:31,174 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-12-09 01:07:31,189 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 01:07:31,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 20 [2018-12-09 01:07:31,189 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 01:07:31,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-09 01:07:31,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-09 01:07:31,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-12-09 01:07:31,190 INFO L87 Difference]: Start difference. First operand 31992 states and 47081 transitions. Second operand 17 states. [2018-12-09 01:07:33,455 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2018-12-09 01:07:34,640 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2018-12-09 01:07:40,941 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 29 [2018-12-09 01:07:41,721 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2018-12-09 01:07:42,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:07:42,546 INFO L93 Difference]: Finished difference Result 64415 states and 99495 transitions. [2018-12-09 01:07:42,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-12-09 01:07:42,546 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 554 [2018-12-09 01:07:42,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:07:42,674 INFO L225 Difference]: With dead ends: 64415 [2018-12-09 01:07:42,674 INFO L226 Difference]: Without dead ends: 33707 [2018-12-09 01:07:42,750 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1229 GetRequests, 1143 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2259 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1375, Invalid=6107, Unknown=0, NotChecked=0, Total=7482 [2018-12-09 01:07:42,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33707 states. [2018-12-09 01:07:43,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33707 to 31853. [2018-12-09 01:07:43,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31853 states. [2018-12-09 01:07:43,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31853 states to 31853 states and 45189 transitions. [2018-12-09 01:07:43,489 INFO L78 Accepts]: Start accepts. Automaton has 31853 states and 45189 transitions. Word has length 554 [2018-12-09 01:07:43,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:07:43,490 INFO L480 AbstractCegarLoop]: Abstraction has 31853 states and 45189 transitions. [2018-12-09 01:07:43,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-09 01:07:43,490 INFO L276 IsEmpty]: Start isEmpty. Operand 31853 states and 45189 transitions. [2018-12-09 01:07:43,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2018-12-09 01:07:43,541 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:07:43,541 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2018-12-09 01:07:43,542 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:07:43,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:43,542 INFO L82 PathProgramCache]: Analyzing trace with hash -879703092, now seen corresponding path program 1 times [2018-12-09 01:07:43,542 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:07:43,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:43,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:43,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:43,542 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:07:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:43,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 615 proven. 107 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2018-12-09 01:07:43,811 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:43,811 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:07:43,811 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 589 with the following transitions: [2018-12-09 01:07:43,811 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [570], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [653], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [707], [710], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:07:43,813 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:07:43,813 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:07:44,255 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:07:44,255 INFO L272 AbstractInterpreter]: Visited 130 different actions 642 times. Merged at 9 different actions 40 times. Widened at 1 different actions 1 times. Performed 8918 root evaluator evaluations with a maximum evaluation depth of 16. Performed 8918 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 15 fixpoints after 3 different actions. Largest state had 28 variables. [2018-12-09 01:07:44,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:44,257 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:07:44,257 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:44,257 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:07:44,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:44,263 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:07:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:44,338 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:07:44,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 941 proven. 2 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2018-12-09 01:07:44,450 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:07:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 615 proven. 107 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2018-12-09 01:07:44,633 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 01:07:44,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-12-09 01:07:44,633 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 01:07:44,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 01:07:44,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 01:07:44,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-09 01:07:44,634 INFO L87 Difference]: Start difference. First operand 31853 states and 45189 transitions. Second operand 7 states. [2018-12-09 01:07:47,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:07:47,245 INFO L93 Difference]: Finished difference Result 71992 states and 120645 transitions. [2018-12-09 01:07:47,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 01:07:47,246 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 588 [2018-12-09 01:07:47,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:07:47,481 INFO L225 Difference]: With dead ends: 71992 [2018-12-09 01:07:47,481 INFO L226 Difference]: Without dead ends: 42855 [2018-12-09 01:07:47,565 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1193 GetRequests, 1178 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-12-09 01:07:47,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42855 states. [2018-12-09 01:07:48,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42855 to 39603. [2018-12-09 01:07:48,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39603 states. [2018-12-09 01:07:48,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39603 states to 39603 states and 60032 transitions. [2018-12-09 01:07:48,853 INFO L78 Accepts]: Start accepts. Automaton has 39603 states and 60032 transitions. Word has length 588 [2018-12-09 01:07:48,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:07:48,853 INFO L480 AbstractCegarLoop]: Abstraction has 39603 states and 60032 transitions. [2018-12-09 01:07:48,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 01:07:48,853 INFO L276 IsEmpty]: Start isEmpty. Operand 39603 states and 60032 transitions. [2018-12-09 01:07:48,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2018-12-09 01:07:48,935 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:07:48,935 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:07:48,935 INFO L423 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:07:48,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:48,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1013078686, now seen corresponding path program 1 times [2018-12-09 01:07:48,936 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:07:48,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:48,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:48,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:48,936 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:07:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:49,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1346 backedges. 332 proven. 4 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2018-12-09 01:07:49,094 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:49,094 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:07:49,094 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 618 with the following transitions: [2018-12-09 01:07:49,094 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [653], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [699], [702], [706], [707], [710], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:07:49,095 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:07:49,095 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:07:49,579 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:07:49,579 INFO L272 AbstractInterpreter]: Visited 132 different actions 641 times. Merged at 9 different actions 34 times. Never widened. Performed 8804 root evaluator evaluations with a maximum evaluation depth of 16. Performed 8804 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 12 fixpoints after 4 different actions. Largest state had 28 variables. [2018-12-09 01:07:49,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:49,582 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:07:49,582 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:49,582 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:07:49,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:49,589 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:07:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:49,665 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:07:49,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1346 backedges. 812 proven. 0 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-12-09 01:07:49,749 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:07:49,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1346 backedges. 332 proven. 4 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2018-12-09 01:07:49,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 01:07:49,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 3 [2018-12-09 01:07:49,877 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:07:49,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 01:07:49,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 01:07:49,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:07:49,878 INFO L87 Difference]: Start difference. First operand 39603 states and 60032 transitions. Second operand 3 states. [2018-12-09 01:07:51,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:07:51,137 INFO L93 Difference]: Finished difference Result 78217 states and 115188 transitions. [2018-12-09 01:07:51,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 01:07:51,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 617 [2018-12-09 01:07:51,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:07:51,275 INFO L225 Difference]: With dead ends: 78217 [2018-12-09 01:07:51,275 INFO L226 Difference]: Without dead ends: 41934 [2018-12-09 01:07:51,351 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 1235 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:07:51,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41934 states. [2018-12-09 01:07:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41934 to 41932. [2018-12-09 01:07:52,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41932 states. [2018-12-09 01:07:52,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41932 states to 41932 states and 63376 transitions. [2018-12-09 01:07:52,476 INFO L78 Accepts]: Start accepts. Automaton has 41932 states and 63376 transitions. Word has length 617 [2018-12-09 01:07:52,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:07:52,476 INFO L480 AbstractCegarLoop]: Abstraction has 41932 states and 63376 transitions. [2018-12-09 01:07:52,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 01:07:52,476 INFO L276 IsEmpty]: Start isEmpty. Operand 41932 states and 63376 transitions. [2018-12-09 01:07:52,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2018-12-09 01:07:52,566 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:07:52,566 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2018-12-09 01:07:52,566 INFO L423 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:07:52,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:52,566 INFO L82 PathProgramCache]: Analyzing trace with hash -782591816, now seen corresponding path program 1 times [2018-12-09 01:07:52,566 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:07:52,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:52,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:52,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:07:52,567 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:07:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:52,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 328 proven. 615 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2018-12-09 01:07:52,809 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:52,809 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:07:52,810 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 632 with the following transitions: [2018-12-09 01:07:52,810 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [653], [654], [658], [662], [666], [677], [680], [685], [687], [688], [692], [696], [707], [710], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:07:52,811 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:07:52,811 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:07:53,282 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:07:53,282 INFO L272 AbstractInterpreter]: Visited 145 different actions 713 times. Merged at 9 different actions 36 times. Never widened. Performed 10024 root evaluator evaluations with a maximum evaluation depth of 16. Performed 10024 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 16 fixpoints after 4 different actions. Largest state had 28 variables. [2018-12-09 01:07:53,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:07:53,284 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:07:53,284 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:07:53,284 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:07:53,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:07:53,290 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:07:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:07:53,367 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:07:53,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 1025 trivial. 0 not checked. [2018-12-09 01:07:53,642 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:07:53,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 1025 trivial. 0 not checked. [2018-12-09 01:07:53,794 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 01:07:53,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-12-09 01:07:53,795 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:07:53,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 01:07:53,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 01:07:53,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-12-09 01:07:53,795 INFO L87 Difference]: Start difference. First operand 41932 states and 63376 transitions. Second operand 3 states. [2018-12-09 01:07:59,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:07:59,702 INFO L93 Difference]: Finished difference Result 85728 states and 130474 transitions. [2018-12-09 01:07:59,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 01:07:59,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 631 [2018-12-09 01:07:59,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:07:59,829 INFO L225 Difference]: With dead ends: 85728 [2018-12-09 01:07:59,829 INFO L226 Difference]: Without dead ends: 46104 [2018-12-09 01:07:59,904 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1273 GetRequests, 1263 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-12-09 01:07:59,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46104 states. [2018-12-09 01:08:00,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46104 to 45988. [2018-12-09 01:08:00,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45988 states. [2018-12-09 01:08:01,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45988 states to 45988 states and 68347 transitions. [2018-12-09 01:08:01,033 INFO L78 Accepts]: Start accepts. Automaton has 45988 states and 68347 transitions. Word has length 631 [2018-12-09 01:08:01,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:08:01,033 INFO L480 AbstractCegarLoop]: Abstraction has 45988 states and 68347 transitions. [2018-12-09 01:08:01,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 01:08:01,033 INFO L276 IsEmpty]: Start isEmpty. Operand 45988 states and 68347 transitions. [2018-12-09 01:08:01,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2018-12-09 01:08:01,182 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:08:01,182 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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] [2018-12-09 01:08:01,183 INFO L423 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:08:01,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:08:01,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1041098036, now seen corresponding path program 1 times [2018-12-09 01:08:01,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:08:01,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:08:01,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:08:01,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:08:01,184 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:08:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:08:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 832 proven. 90 refuted. 0 times theorem prover too weak. 907 trivial. 0 not checked. [2018-12-09 01:08:01,494 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:08:01,494 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:08:01,494 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 753 with the following transitions: [2018-12-09 01:08:01,494 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [578], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [618], [623], [625], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [800], [803], [807], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [870], [874], [878], [881], [886], [888], [1084], [1088], [1097], [1101], [1103], [1108], [1109], [1110], [1112], [1113] [2018-12-09 01:08:01,496 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:08:01,496 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:08:01,938 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:08:01,938 INFO L272 AbstractInterpreter]: Visited 169 different actions 820 times. Merged at 9 different actions 39 times. Widened at 1 different actions 1 times. Performed 11796 root evaluator evaluations with a maximum evaluation depth of 16. Performed 11796 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 13 fixpoints after 5 different actions. Largest state had 28 variables. [2018-12-09 01:08:01,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:08:01,941 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:08:01,941 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:08:01,941 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:08:01,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:08:01,947 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:08:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:08:02,040 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:08:02,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 1199 proven. 2 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2018-12-09 01:08:02,201 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:08:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 832 proven. 90 refuted. 0 times theorem prover too weak. 907 trivial. 0 not checked. [2018-12-09 01:08:02,516 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 01:08:02,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-12-09 01:08:02,516 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 01:08:02,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 01:08:02,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 01:08:02,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-12-09 01:08:02,517 INFO L87 Difference]: Start difference. First operand 45988 states and 68347 transitions. Second operand 9 states. [2018-12-09 01:08:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:08:04,539 INFO L93 Difference]: Finished difference Result 85904 states and 124108 transitions. [2018-12-09 01:08:04,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 01:08:04,540 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 752 [2018-12-09 01:08:04,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:08:04,541 INFO L225 Difference]: With dead ends: 85904 [2018-12-09 01:08:04,541 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 01:08:04,668 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1523 GetRequests, 1506 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2018-12-09 01:08:04,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 01:08:04,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 01:08:04,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 01:08:04,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 01:08:04,669 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 752 [2018-12-09 01:08:04,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:08:04,669 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 01:08:04,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 01:08:04,669 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 01:08:04,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 01:08:04,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 01:08:04,949 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,063 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,064 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,780 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,810 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,862 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,872 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,915 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,937 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:05,967 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,044 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,081 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,402 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,532 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,616 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,776 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,866 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:06,945 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:07,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:07,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:07,341 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:07,351 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:07,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:07,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:07,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:07,718 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:07,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:08,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:08,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:08,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:08,692 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:08,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:09,199 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:09,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:09,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:09,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:09,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:10,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:11,044 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:11,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:11,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:11,389 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:12,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:12,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:16,506 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:22,319 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,341 WARN L180 SmtUtils]: Spent 20.78 s on a formula simplification. DAG size of input: 3321 DAG size of output: 2938 [2018-12-09 01:08:26,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,577 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,629 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,654 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,655 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,704 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,819 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,891 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,903 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:26,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:27,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:27,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:27,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:27,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:27,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:27,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:27,484 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:27,696 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:27,806 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:27,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:28,208 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:28,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:28,977 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:29,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:29,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:29,323 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:29,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:29,684 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:29,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:29,895 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:30,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:30,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:30,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:31,066 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:31,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:31,482 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:31,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:31,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:32,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:32,787 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:36,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:08:46,308 WARN L180 SmtUtils]: Spent 19.96 s on a formula simplification. DAG size of input: 3246 DAG size of output: 2878 [2018-12-09 01:09:00,761 WARN L180 SmtUtils]: Spent 14.32 s on a formula simplification. DAG size of input: 737 DAG size of output: 135 [2018-12-09 01:11:07,212 WARN L180 SmtUtils]: Spent 2.11 m on a formula simplification. DAG size of input: 2777 DAG size of output: 126 [2018-12-09 01:12:51,350 WARN L180 SmtUtils]: Spent 1.74 m on a formula simplification. DAG size of input: 2733 DAG size of output: 130 [2018-12-09 01:12:51,352 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:12:51,352 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a29~0 |old(~a29~0)|) (= ~a23~0 |old(~a23~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a25~0 |old(~a25~0)|)) [2018-12-09 01:12:51,352 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L168(line 168) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L102(line 102) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L566(lines 566 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L170-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L104-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L38-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L963(lines 963 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L171(line 171) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L105(line 105) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L39(line 39) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L898(lines 898 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L436(lines 436 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L370(lines 370 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L635(lines 635 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L173-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L107-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L41-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L240(lines 240 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L174(line 174) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L108(line 108) no Hoare annotation was computed. [2018-12-09 01:12:51,353 INFO L448 ceAbstractionStarter]: For program point L42(line 42) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L769(lines 769 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L836(lines 836 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L572(lines 572 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L176-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L110-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L44-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L969(lines 969 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L903(lines 903 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L507(lines 507 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L177(line 177) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L111(line 111) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L45(line 45) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L970(lines 970 980) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L904(lines 904 914) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L970-2(lines 970 980) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L904-2(lines 904 914) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L310(lines 310 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L575(lines 575 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L443(lines 443 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L179-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L113-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L47-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L774(lines 774 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,354 INFO L448 ceAbstractionStarter]: For program point L642(lines 642 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L180(line 180) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L114(line 114) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L841(lines 841 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L182-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L116-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L50-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L183(line 183) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L117(line 117) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L51(line 51) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L514(lines 514 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L647(lines 647 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,355 INFO L448 ceAbstractionStarter]: For program point L581(lines 581 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L515(lines 515 525) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L515-2(lines 515 525) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L185-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L119-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L53-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L846(lines 846 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L780(lines 780 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L648(lines 648 657) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L648-2(lines 648 657) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L450(lines 450 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L186(line 186) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L120(line 120) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-12-09 01:12:51,356 INFO L448 ceAbstractionStarter]: For program point L254(lines 254 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L188-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L122-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L56-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L981(lines 981 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L915(lines 915 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L717(lines 717 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L189(line 189) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L123(line 123) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L57(line 57) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L916(lines 916 926) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L916-2(lines 916 926) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 730) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L718-2(lines 718 730) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L586(lines 586 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L322(lines 322 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,357 INFO L448 ceAbstractionStarter]: For program point L587(lines 587 597) no Hoare annotation was computed. [2018-12-09 01:12:51,358 INFO L448 ceAbstractionStarter]: For program point L587-2(lines 587 597) no Hoare annotation was computed. [2018-12-09 01:12:51,358 INFO L448 ceAbstractionStarter]: For program point L191-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,358 INFO L448 ceAbstractionStarter]: For program point L125-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,358 INFO L448 ceAbstractionStarter]: For program point L59-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,358 INFO L448 ceAbstractionStarter]: For program point L852(lines 852 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,358 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 22 1026) the Hoare annotation is: (let ((.cse4 (= ~a29~0 |old(~a29~0)|)) (.cse5 (= ~a23~0 |old(~a23~0)|)) (.cse16 (= ~a4~0 |old(~a4~0)|)) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse17 (= 1 |old(~a4~0)|)) (.cse23 (= 11 |old(~a25~0)|))) (let ((.cse11 (= |calculate_output_#in~input| 0)) (.cse9 (< |old(~a25~0)| 12)) (.cse24 (< 261 |old(~a29~0)|)) (.cse15 (< |old(~a29~0)| 260)) (.cse21 (forall ((v_~a23~0_647 Int)) (or (< 138 v_~a23~0_647) (< (* 25 v_~a23~0_647) (+ |old(~a23~0)| 287786))))) (.cse13 (not (= 10 |old(~a25~0)|))) (.cse25 (< 312 |old(~a23~0)|)) (.cse3 (<= (+ |old(~a23~0)| 43) 0)) (.cse14 (not .cse23)) (.cse2 (not .cse17)) (.cse18 (not (= 9 |old(~a25~0)|))) (.cse10 (< 140 |old(~a29~0)|)) (.cse7 (< 138 |old(~a23~0)|)) (.cse0 (not (= 15 ~a8~0))) (.cse1 (not (= 1 ~a3~0))) (.cse22 (< |old(~a29~0)| 130)) (.cse8 (and .cse4 .cse5 .cse16 .cse6)) (.cse12 (not (= 12 |old(~a25~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 (= |old(~a4~0)| ~a4~0) .cse6) .cse7) (or .cse8 .cse9 .cse0 .cse1 .cse2 .cse3) (or .cse10 .cse11 .cse12 .cse0 .cse1 .cse2 .cse8) (or .cse13 .cse8 .cse10 .cse7 .cse0 .cse1 .cse3) (or .cse0 .cse1 .cse2 .cse8 (= 0 |old(~a25~0)|) .cse11 (not (= 0 (mod |old(~a25~0)| 2))) (< 11 |old(~a25~0)|)) (or .cse9 .cse0 .cse1 .cse8 .cse3 .cse7) (or .cse0 .cse1 .cse14 (or .cse15 .cse3) .cse2 (and .cse5 .cse4 .cse16 .cse6)) (or .cse0 .cse1 .cse17 .cse12 .cse8 .cse7) (or .cse0 .cse1 .cse14 .cse17 .cse8 .cse10 .cse7) (or .cse0 .cse1 .cse8 .cse18 .cse15 .cse7) (or .cse0 .cse1 (forall ((v_prenex_30 Int)) (let ((.cse20 (* 5 (div v_prenex_30 5)))) (let ((.cse19 (mod .cse20 15))) (or (= .cse19 0) (< |old(~a29~0)| (+ .cse19 246)) (<= 0 (+ .cse20 128610)) (not (= (mod v_prenex_30 5) 0)))))) .cse8 .cse14 .cse2 .cse21) (or .cse0 .cse1 .cse8 .cse22 .cse23 .cse2 .cse24) (or .cse0 .cse1 .cse2 (or .cse22 .cse3) .cse24 .cse8) (or .cse0 .cse1 .cse18 .cse15 .cse2 .cse8) (or .cse0 .cse1 .cse14 .cse15 .cse8 .cse21) (or .cse25 .cse0 .cse1 .cse8 .cse18 .cse2 .cse3) (or .cse13 .cse0 .cse1 .cse17 (< 0 (+ |old(~a29~0)| 28445)) .cse8) (or .cse8 (or .cse0 .cse1 (< 0 (+ |old(~a29~0)| 580292)) .cse17 .cse12)) (or .cse25 .cse0 .cse1 .cse3 .cse14 .cse8 .cse2) (or .cse0 .cse1 .cse17 .cse18 .cse10 .cse7 .cse8) (or .cse0 .cse1 .cse17 .cse22 .cse8 .cse12)))) [2018-12-09 01:12:51,358 INFO L448 ceAbstractionStarter]: For program point L456(lines 456 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,358 INFO L448 ceAbstractionStarter]: For program point L192(line 192) no Hoare annotation was computed. [2018-12-09 01:12:51,358 INFO L448 ceAbstractionStarter]: For program point L126(line 126) no Hoare annotation was computed. [2018-12-09 01:12:51,358 INFO L448 ceAbstractionStarter]: For program point L60(line 60) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L787(lines 787 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L260(lines 260 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L194-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L128-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L62-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L195(line 195) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L129(line 129) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L63(line 63) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L988(lines 988 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L658(lines 658 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L526(lines 526 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L197-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L131-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L792(lines 792 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L198(line 198) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L132(line 132) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L66(line 66) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,359 INFO L448 ceAbstractionStarter]: For program point L463(lines 463 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L200-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L134-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L68-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L993(lines 993 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L927(lines 927 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L663(lines 663 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L531(lines 531 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L399(lines 399 410) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L399-2(lines 399 410) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L201(line 201) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L135(line 135) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L69(line 69) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L598(lines 598 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L334(lines 334 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L731(lines 731 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L203-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L137-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L71-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L204(line 204) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L138(line 138) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L799(lines 799 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,360 INFO L448 ceAbstractionStarter]: For program point L932(lines 932 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L866(lines 866 875) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L866-2(lines 866 875) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L470(lines 470 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L140-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L537(lines 537 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L141(line 141) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L75(line 75) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L1000(lines 1000 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L670(lines 670 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L604(lines 604 614) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L604-2(lines 604 614) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L340(lines 340 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L143-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L77-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L804(lines 804 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L738(lines 738 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L144(line 144) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L78(line 78) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L805(lines 805 815) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L805-2(lines 805 815) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L542(lines 542 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L146-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,361 INFO L448 ceAbstractionStarter]: For program point L80-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L1005(lines 1005 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L939(lines 939 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L675(lines 675 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L477(lines 477 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L411(lines 411 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L147(line 147) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L940(lines 940 952) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L940-2(lines 940 952) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 486) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L478-2(lines 478 486) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L346(lines 346 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L743(lines 743 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L149-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L83-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L876(lines 876 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L150(line 150) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L84(line 84) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L152-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L86-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L681(lines 681 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,362 INFO L448 ceAbstractionStarter]: For program point L549(lines 549 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L417(lines 417 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L153(line 153) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L87(line 87) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L1012(lines 1012 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L881(lines 881 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 195) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L287(lines 287 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L221(lines 221 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L155-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L89-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 25) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L23-2(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L816(lines 816 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L750(lines 750 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L156(line 156) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L90(line 90) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L487(lines 487 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L488(lines 488 499) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L422(lines 422 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L488-2(lines 488 499) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L158-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L92-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,363 INFO L448 ceAbstractionStarter]: For program point L26-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L1017(lines 1017 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L159(line 159) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L93(line 93) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L886(lines 886 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L358(lines 358 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L953(lines 953 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L227(lines 227 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L161-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L95-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L29-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L822(lines 822 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L294(lines 294 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L162(line 162) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2018-12-09 01:12:51,364 INFO L448 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L757(lines 757 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 768) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L758-2(lines 758 768) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L164-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L98-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L32-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L429(lines 429 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L165(line 165) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L99(line 99) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L958(lines 958 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L628(lines 628 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,365 INFO L448 ceAbstractionStarter]: For program point L893(lines 893 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,366 INFO L448 ceAbstractionStarter]: For program point L695(lines 695 705) no Hoare annotation was computed. [2018-12-09 01:12:51,366 INFO L448 ceAbstractionStarter]: For program point L695-2(lines 695 705) no Hoare annotation was computed. [2018-12-09 01:12:51,366 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,366 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,366 INFO L448 ceAbstractionStarter]: For program point L233(lines 233 1024) no Hoare annotation was computed. [2018-12-09 01:12:51,366 INFO L448 ceAbstractionStarter]: For program point L167-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,366 INFO L448 ceAbstractionStarter]: For program point L101-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,366 INFO L448 ceAbstractionStarter]: For program point L35-1(lines 22 1026) no Hoare annotation was computed. [2018-12-09 01:12:51,366 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:12:51,366 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a23~0 312) (= ~a8~0 15) (<= ~a29~0 130) (= 1 ~a4~0) (<= 130 ~a29~0) (= ~a25~0 10) (= ~a3~0 1)) [2018-12-09 01:12:51,366 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 01:12:51,366 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:12:51,366 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 1028 1044) the Hoare annotation is: (or (not (= 10 |old(~a25~0)|)) (and (= ~a25~0 |old(~a25~0)|) (= ~a29~0 130) (= ~a23~0 |old(~a23~0)|) (= 1 ~a4~0)) (not (= 15 ~a8~0)) (not (= 1 ~a3~0)) (not (= 312 |old(~a23~0)|)) (not (= 1 |old(~a4~0)|)) (not (= 130 |old(~a29~0)|))) [2018-12-09 01:12:51,367 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 1028 1044) no Hoare annotation was computed. [2018-12-09 01:12:51,367 INFO L444 ceAbstractionStarter]: At program point L1042(line 1042) the Hoare annotation is: (let ((.cse7 (exists ((v_~a23~0_647 Int)) (and (<= v_~a23~0_647 138) (<= (+ ~a23~0 287786) (* 25 v_~a23~0_647))))) (.cse2 (<= ~a29~0 140)) (.cse12 (<= 12 ~a25~0)) (.cse10 (= 10 ~a25~0)) (.cse4 (= 11 ~a25~0)) (.cse15 (<= ~a23~0 312)) (.cse8 (<= 260 ~a29~0)) (.cse13 (= 9 ~a25~0)) (.cse16 (<= ~a29~0 261)) (.cse17 (<= 130 ~a29~0)) (.cse11 (< 0 (+ ~a23~0 43))) (.cse0 (not (= main_~input~0 0))) (.cse1 (= 1 ~a4~0)) (.cse9 (<= ~a23~0 138)) (.cse3 (= ~a25~0 12)) (.cse14 (not (= ~a4~0 1)))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= 10 |old(~a25~0)|)) (not (= 1 |old(~a4~0)|)) (and .cse4 (exists ((v_prenex_30 Int)) (let ((.cse6 (* 5 (div v_prenex_30 5)))) (let ((.cse5 (mod .cse6 15))) (and (not (= .cse5 0)) (< (+ .cse6 128610) 0) (<= (+ .cse5 246) ~a29~0) (= (mod v_prenex_30 5) 0))))) (and .cse7 .cse1)) (< 130 |old(~a29~0)|) (and .cse4 (and .cse7 .cse8)) (and .cse9 .cse10 .cse2 .cse11) (< 312 |old(~a23~0)|) (and .cse12 .cse11 .cse9) (< |old(~a29~0)| 130) (< |old(~a23~0)| 312) (and .cse2 .cse13 .cse9 .cse14) (and .cse11 .cse15 .cse13 .cse1) (and .cse16 .cse1 .cse17 (not (= ~a25~0 11))) (not (= 1 ~a3~0)) (and .cse4 .cse2 .cse9 .cse14) (and .cse12 .cse1 .cse11) (and (<= (+ ~a29~0 28445) 0) .cse10 .cse14) (and .cse11 .cse9 .cse1) (and .cse4 (and .cse1 .cse8) (< 306 ~a23~0)) (and .cse4 (and .cse15 .cse11 .cse1)) (and (and (= 12 ~a25~0) (<= (+ ~a29~0 580292) 0)) .cse14) (and .cse17 .cse3 .cse14) (and .cse9 .cse8 .cse13) (and .cse13 .cse1 .cse17) (and .cse16 .cse1 .cse17 .cse11) (and (and .cse0 (= (mod ~a25~0 2) 0) (not (= ~a25~0 0)) .cse1) (<= ~a25~0 11)) (and .cse9 .cse3 .cse14) (not (= 15 ~a8~0)))) [2018-12-09 01:12:51,367 INFO L448 ceAbstractionStarter]: For program point L1042-1(line 1042) no Hoare annotation was computed. [2018-12-09 01:12:51,367 INFO L448 ceAbstractionStarter]: For program point L1039(line 1039) no Hoare annotation was computed. [2018-12-09 01:12:51,367 INFO L444 ceAbstractionStarter]: At program point L1034-2(lines 1034 1043) the Hoare annotation is: (let ((.cse3 (exists ((v_~a23~0_647 Int)) (and (<= v_~a23~0_647 138) (<= (+ ~a23~0 287786) (* 25 v_~a23~0_647))))) (.cse10 (<= 12 ~a25~0)) (.cse7 (= 10 ~a25~0)) (.cse8 (<= ~a29~0 140)) (.cse0 (= 11 ~a25~0)) (.cse13 (<= ~a23~0 312)) (.cse5 (<= 260 ~a29~0)) (.cse11 (= 9 ~a25~0)) (.cse6 (<= ~a23~0 138)) (.cse16 (= ~a25~0 12)) (.cse12 (not (= ~a4~0 1))) (.cse14 (<= ~a29~0 261)) (.cse9 (< 0 (+ ~a23~0 43))) (.cse15 (<= 130 ~a29~0)) (.cse4 (= 1 ~a4~0))) (or (not (= 10 |old(~a25~0)|)) (not (= 1 |old(~a4~0)|)) (and .cse0 (exists ((v_prenex_30 Int)) (let ((.cse2 (* 5 (div v_prenex_30 5)))) (let ((.cse1 (mod .cse2 15))) (and (not (= .cse1 0)) (< (+ .cse2 128610) 0) (<= (+ .cse1 246) ~a29~0) (= (mod v_prenex_30 5) 0))))) (and .cse3 .cse4)) (< 130 |old(~a29~0)|) (and .cse0 (and .cse3 .cse5)) (and .cse6 .cse7 .cse8 .cse9) (< 312 |old(~a23~0)|) (and .cse10 .cse9 .cse6) (< |old(~a29~0)| 130) (< |old(~a23~0)| 312) (and .cse8 .cse11 .cse6 .cse12) (and .cse9 .cse13 .cse11 .cse4) (and .cse14 .cse4 .cse15 (not (= ~a25~0 11))) (not (= 1 ~a3~0)) (and .cse0 .cse8 .cse6 .cse12) (and .cse10 .cse4 .cse9) (and (<= (+ ~a29~0 28445) 0) .cse7) (and .cse11 .cse15 .cse4) (and .cse9 .cse6 .cse4) (and .cse4 .cse8 .cse16) (and (and (= (mod ~a25~0 2) 0) (not (= ~a25~0 0)) .cse4) (<= ~a25~0 11)) (and .cse0 (and .cse4 .cse5) (< 306 ~a23~0)) (and .cse0 (and .cse13 .cse9 .cse4)) (and (= 12 ~a25~0) (<= (+ ~a29~0 580292) 0)) (and .cse15 .cse16 .cse12) (and .cse6 .cse5 .cse11) (and .cse6 .cse16 .cse12) (and .cse14 .cse9 .cse15 .cse4) (not (= 15 ~a8~0)))) [2018-12-09 01:12:51,367 INFO L448 ceAbstractionStarter]: For program point L1034-3(lines 1028 1044) no Hoare annotation was computed. [2018-12-09 01:12:51,372 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,373 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,373 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,373 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,373 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,374 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,374 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,375 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,381 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,381 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,381 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,381 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,382 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,382 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,382 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,382 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:12:51 BoogieIcfgContainer [2018-12-09 01:12:51,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:12:51,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:12:51,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:12:51,386 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:12:51,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:03:47" (3/4) ... [2018-12-09 01:12:51,389 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 01:12:51,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 01:12:51,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-09 01:12:51,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 01:12:51,407 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 01:12:51,408 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 01:12:51,429 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((!(10 == \old(a25)) || !(1 == \old(a4))) || ((11 == a25 && (\exists v_prenex_30 : int :: ((!(5 * (v_prenex_30 / 5) % 15 == 0) && 5 * (v_prenex_30 / 5) + 128610 < 0) && 5 * (v_prenex_30 / 5) % 15 + 246 <= a29) && v_prenex_30 % 5 == 0)) && (\exists v_~a23~0_647 : int :: v_~a23~0_647 <= 138 && a23 + 287786 <= 25 * v_~a23~0_647) && 1 == a4)) || 130 < \old(a29)) || (11 == a25 && (\exists v_~a23~0_647 : int :: v_~a23~0_647 <= 138 && a23 + 287786 <= 25 * v_~a23~0_647) && 260 <= a29)) || (((a23 <= 138 && 10 == a25) && a29 <= 140) && 0 < a23 + 43)) || 312 < \old(a23)) || ((12 <= a25 && 0 < a23 + 43) && a23 <= 138)) || \old(a29) < 130) || \old(a23) < 312) || (((a29 <= 140 && 9 == a25) && a23 <= 138) && !(a4 == 1))) || (((0 < a23 + 43 && a23 <= 312) && 9 == a25) && 1 == a4)) || (((a29 <= 261 && 1 == a4) && 130 <= a29) && !(a25 == 11))) || !(1 == a3)) || (((11 == a25 && a29 <= 140) && a23 <= 138) && !(a4 == 1))) || ((12 <= a25 && 1 == a4) && 0 < a23 + 43)) || (a29 + 28445 <= 0 && 10 == a25)) || ((9 == a25 && 130 <= a29) && 1 == a4)) || ((0 < a23 + 43 && a23 <= 138) && 1 == a4)) || ((1 == a4 && a29 <= 140) && a25 == 12)) || (((a25 % 2 == 0 && !(a25 == 0)) && 1 == a4) && a25 <= 11)) || ((11 == a25 && 1 == a4 && 260 <= a29) && 306 < a23)) || (11 == a25 && (a23 <= 312 && 0 < a23 + 43) && 1 == a4)) || (12 == a25 && a29 + 580292 <= 0)) || ((130 <= a29 && a25 == 12) && !(a4 == 1))) || ((a23 <= 138 && 260 <= a29) && 9 == a25)) || ((a23 <= 138 && a25 == 12) && !(a4 == 1))) || (((a29 <= 261 && 0 < a23 + 43) && 130 <= a29) && 1 == a4)) || !(15 == a8) [2018-12-09 01:12:51,513 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0646900a-438d-4c58-946b-23724b4d7685/bin-2019/utaipan/witness.graphml [2018-12-09 01:12:51,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:12:51,514 INFO L168 Benchmark]: Toolchain (without parser) took 545336.69 ms. Allocated memory was 1.0 GB in the beginning and 3.0 GB in the end (delta: 2.0 GB). Free memory was 942.7 MB in the beginning and 1.7 GB in the end (delta: -774.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-12-09 01:12:51,514 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:12:51,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 942.7 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:12:51,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:12:51,515 INFO L168 Benchmark]: Boogie Preprocessor took 51.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-09 01:12:51,515 INFO L168 Benchmark]: RCFGBuilder took 1028.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 924.4 MB in the end (delta: 174.2 MB). Peak memory consumption was 174.2 MB. Max. memory is 11.5 GB. [2018-12-09 01:12:51,516 INFO L168 Benchmark]: TraceAbstraction took 543681.07 ms. Allocated memory was 1.2 GB in the beginning and 3.0 GB in the end (delta: 1.9 GB). Free memory was 924.4 MB in the beginning and 1.8 GB in the end (delta: -832.3 MB). Peak memory consumption was 4.5 GB. Max. memory is 11.5 GB. [2018-12-09 01:12:51,516 INFO L168 Benchmark]: Witness Printer took 127.21 ms. Allocated memory is still 3.0 GB. Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2018-12-09 01:12:51,517 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 422.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 942.7 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1028.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 924.4 MB in the end (delta: 174.2 MB). Peak memory consumption was 174.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 543681.07 ms. Allocated memory was 1.2 GB in the beginning and 3.0 GB in the end (delta: 1.9 GB). Free memory was 924.4 MB in the beginning and 1.8 GB in the end (delta: -832.3 MB). Peak memory consumption was 4.5 GB. Max. memory is 11.5 GB. * Witness Printer took 127.21 ms. Allocated memory is still 3.0 GB. Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 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_prenex_30,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 195]: 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: 1034]: Loop Invariant [2018-12-09 01:12:51,520 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,521 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,521 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,521 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,521 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,521 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,522 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,522 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,523 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,523 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,523 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,524 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_30,QUANTIFIED] [2018-12-09 01:12:51,524 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,524 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,524 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] [2018-12-09 01:12:51,525 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a23~0_647,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((((((((!(10 == \old(a25)) || !(1 == \old(a4))) || ((11 == a25 && (\exists v_prenex_30 : int :: ((!(5 * (v_prenex_30 / 5) % 15 == 0) && 5 * (v_prenex_30 / 5) + 128610 < 0) && 5 * (v_prenex_30 / 5) % 15 + 246 <= a29) && v_prenex_30 % 5 == 0)) && (\exists v_~a23~0_647 : int :: v_~a23~0_647 <= 138 && a23 + 287786 <= 25 * v_~a23~0_647) && 1 == a4)) || 130 < \old(a29)) || (11 == a25 && (\exists v_~a23~0_647 : int :: v_~a23~0_647 <= 138 && a23 + 287786 <= 25 * v_~a23~0_647) && 260 <= a29)) || (((a23 <= 138 && 10 == a25) && a29 <= 140) && 0 < a23 + 43)) || 312 < \old(a23)) || ((12 <= a25 && 0 < a23 + 43) && a23 <= 138)) || \old(a29) < 130) || \old(a23) < 312) || (((a29 <= 140 && 9 == a25) && a23 <= 138) && !(a4 == 1))) || (((0 < a23 + 43 && a23 <= 312) && 9 == a25) && 1 == a4)) || (((a29 <= 261 && 1 == a4) && 130 <= a29) && !(a25 == 11))) || !(1 == a3)) || (((11 == a25 && a29 <= 140) && a23 <= 138) && !(a4 == 1))) || ((12 <= a25 && 1 == a4) && 0 < a23 + 43)) || (a29 + 28445 <= 0 && 10 == a25)) || ((9 == a25 && 130 <= a29) && 1 == a4)) || ((0 < a23 + 43 && a23 <= 138) && 1 == a4)) || ((1 == a4 && a29 <= 140) && a25 == 12)) || (((a25 % 2 == 0 && !(a25 == 0)) && 1 == a4) && a25 <= 11)) || ((11 == a25 && 1 == a4 && 260 <= a29) && 306 < a23)) || (11 == a25 && (a23 <= 312 && 0 < a23 + 43) && 1 == a4)) || (12 == a25 && a29 + 580292 <= 0)) || ((130 <= a29 && a25 == 12) && !(a4 == 1))) || ((a23 <= 138 && 260 <= a29) && 9 == a25)) || ((a23 <= 138 && a25 == 12) && !(a4 == 1))) || (((a29 <= 261 && 0 < a23 + 43) && 130 <= a29) && 1 == a4)) || !(15 == a8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 292 locations, 1 error locations. SAFE Result, 543.6s OverallTime, 23 OverallIterations, 7 TraceHistogramMax, 221.3s AutomataDifference, 0.0s DeadEndRemovalTime, 286.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 2908 SDtfs, 24713 SDslu, 3584 SDs, 0 SdLazy, 51709 SolverSat, 8698 SolverUnsat, 41 SolverUnknown, 0 SolverNotchecked, 172.7s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 16777 GetRequests, 16217 SyntacticMatches, 28 SemanticMatches, 532 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7624 ImplicationChecksByTransitivity, 18.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45988occurred in iteration=22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.2s AbstIntTime, 19 AbstIntIterations, 4 AbstIntStrong, 0.9978344573438398 AbsIntWeakeningRatio, 0.0966183574879227 AbsIntAvgWeakeningVarsNumRemoved, 18.13768115942029 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.5s AutomataMinimizationTime, 23 MinimizatonAttempts, 9805 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 5816 PreInvPairs, 7278 NumberOfFragments, 1624 HoareAnnotationTreeSize, 5816 FomulaSimplifications, 1295882 FormulaSimplificationTreeSizeReduction, 41.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 533878 FormulaSimplificationTreeSizeReductionInter, 244.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 14.5s InterpolantComputationTime, 17005 NumberOfCodeBlocks, 17005 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 24379 ConstructedInterpolants, 78 QuantifiedInterpolants, 42123432 SizeOfPredicates, 39 NumberOfNonLiveVariables, 11666 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 53 InterpolantComputations, 9 PerfectInterpolantSequences, 36730/39117 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...