./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/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 c2ee6781c62be40fa372129eaacaba9832af3ce9 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/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 c2ee6781c62be40fa372129eaacaba9832af3ce9 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:11:15,476 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:11:15,478 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:11:15,488 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:11:15,489 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:11:15,490 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:11:15,491 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:11:15,493 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:11:15,494 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:11:15,495 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:11:15,496 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:11:15,497 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:11:15,498 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:11:15,499 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:11:15,500 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:11:15,501 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:11:15,501 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:11:15,503 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:11:15,505 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:11:15,506 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:11:15,508 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:11:15,509 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:11:15,511 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:11:15,511 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:11:15,512 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:11:15,513 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:11:15,514 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:11:15,515 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:11:15,516 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:11:15,517 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:11:15,517 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:11:15,518 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:11:15,518 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:11:15,518 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:11:15,519 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:11:15,520 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:11:15,520 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 04:11:15,533 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:11:15,534 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:11:15,535 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:11:15,535 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 04:11:15,535 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 04:11:15,535 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 04:11:15,535 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 04:11:15,536 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 04:11:15,536 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 04:11:15,536 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 04:11:15,536 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 04:11:15,537 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:11:15,537 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:11:15,537 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:11:15,537 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:11:15,537 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:11:15,538 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:11:15,538 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:11:15,538 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:11:15,538 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:11:15,538 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:11:15,538 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:11:15,538 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:11:15,539 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:11:15,539 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:11:15,539 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:11:15,539 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:11:15,539 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:11:15,539 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:11:15,540 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:11:15,540 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 04:11:15,540 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:11:15,540 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:11:15,540 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 04:11:15,540 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_a24b0e10-2dbf-4534-a04a-04ca138cfad0/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 -> c2ee6781c62be40fa372129eaacaba9832af3ce9 [2018-11-10 04:11:15,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:11:15,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:11:15,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:11:15,592 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:11:15,593 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:11:15,594 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.c [2018-11-10 04:11:15,657 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/data/70e2622a0/3e66e0270a5a417ab28f9663cec45433/FLAG8a8df95e1 [2018-11-10 04:11:16,096 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:11:16,096 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.c [2018-11-10 04:11:16,108 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/data/70e2622a0/3e66e0270a5a417ab28f9663cec45433/FLAG8a8df95e1 [2018-11-10 04:11:16,123 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/data/70e2622a0/3e66e0270a5a417ab28f9663cec45433 [2018-11-10 04:11:16,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:11:16,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:11:16,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:11:16,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:11:16,129 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:11:16,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:11:16" (1/1) ... [2018-11-10 04:11:16,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:16, skipping insertion in model container [2018-11-10 04:11:16,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:11:16" (1/1) ... [2018-11-10 04:11:16,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:11:16,185 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:11:16,491 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:11:16,495 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:11:16,577 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:11:16,593 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:11:16,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:16 WrapperNode [2018-11-10 04:11:16,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:11:16,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:11:16,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:11:16,594 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:11:16,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:16" (1/1) ... [2018-11-10 04:11:16,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:16" (1/1) ... [2018-11-10 04:11:16,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:11:16,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:11:16,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:11:16,747 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:11:16,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:16" (1/1) ... [2018-11-10 04:11:16,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:16" (1/1) ... [2018-11-10 04:11:16,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:16" (1/1) ... [2018-11-10 04:11:16,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:16" (1/1) ... [2018-11-10 04:11:16,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:16" (1/1) ... [2018-11-10 04:11:16,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:16" (1/1) ... [2018-11-10 04:11:16,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:16" (1/1) ... [2018-11-10 04:11:16,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:11:16,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:11:16,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:11:16,813 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:11:16,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:11:16,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:11:16,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:11:16,879 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-10 04:11:16,879 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-10 04:11:16,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:11:16,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:11:16,879 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:11:16,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:11:18,203 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:11:18,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:11:18 BoogieIcfgContainer [2018-11-10 04:11:18,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:11:18,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:11:18,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:11:18,209 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:11:18,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:11:16" (1/3) ... [2018-11-10 04:11:18,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bfb4027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:11:18, skipping insertion in model container [2018-11-10 04:11:18,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:11:16" (2/3) ... [2018-11-10 04:11:18,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bfb4027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:11:18, skipping insertion in model container [2018-11-10 04:11:18,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:11:18" (3/3) ... [2018-11-10 04:11:18,212 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label49_true-unreach-call.c [2018-11-10 04:11:18,223 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:11:18,231 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 04:11:18,245 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 04:11:18,279 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:11:18,280 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:11:18,280 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:11:18,280 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:11:18,280 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:11:18,281 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:11:18,281 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:11:18,281 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:11:18,306 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-10 04:11:18,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 04:11:18,313 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:11:18,314 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:11:18,317 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:11:18,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:11:18,323 INFO L82 PathProgramCache]: Analyzing trace with hash -654369111, now seen corresponding path program 1 times [2018-11-10 04:11:18,325 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:11:18,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:11:18,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:11:18,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:11:18,370 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:11:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:11:18,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:11:18,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:11:18,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 04:11:18,575 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:11:18,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 04:11:18,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 04:11:18,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:11:18,595 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-10 04:11:19,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:11:19,501 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-10 04:11:19,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 04:11:19,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-11-10 04:11:19,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:11:19,518 INFO L225 Difference]: With dead ends: 574 [2018-11-10 04:11:19,518 INFO L226 Difference]: Without dead ends: 356 [2018-11-10 04:11:19,523 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:11:19,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-10 04:11:19,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-10 04:11:19,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-10 04:11:19,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-11-10 04:11:19,583 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 29 [2018-11-10 04:11:19,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:11:19,583 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-11-10 04:11:19,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 04:11:19,584 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-11-10 04:11:19,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-10 04:11:19,588 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:11:19,588 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:11:19,589 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:11:19,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:11:19,589 INFO L82 PathProgramCache]: Analyzing trace with hash 350526568, now seen corresponding path program 1 times [2018-11-10 04:11:19,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:11:19,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:11:19,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:11:19,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:11:19,592 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:11:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:11:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:11:19,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:11:19,804 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 04:11:19,804 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:11:19,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 04:11:19,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 04:11:19,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-10 04:11:19,807 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 6 states. [2018-11-10 04:11:20,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:11:20,675 INFO L93 Difference]: Finished difference Result 867 states and 1507 transitions. [2018-11-10 04:11:20,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 04:11:20,676 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2018-11-10 04:11:20,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:11:20,679 INFO L225 Difference]: With dead ends: 867 [2018-11-10 04:11:20,680 INFO L226 Difference]: Without dead ends: 517 [2018-11-10 04:11:20,682 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 04:11:20,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2018-11-10 04:11:20,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 508. [2018-11-10 04:11:20,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2018-11-10 04:11:20,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 831 transitions. [2018-11-10 04:11:20,707 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 831 transitions. Word has length 103 [2018-11-10 04:11:20,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:11:20,707 INFO L481 AbstractCegarLoop]: Abstraction has 508 states and 831 transitions. [2018-11-10 04:11:20,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 04:11:20,707 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 831 transitions. [2018-11-10 04:11:20,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-10 04:11:20,709 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:11:20,709 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:11:20,710 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:11:20,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:11:20,710 INFO L82 PathProgramCache]: Analyzing trace with hash -781565036, now seen corresponding path program 1 times [2018-11-10 04:11:20,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:11:20,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:11:20,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:11:20,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:11:20,711 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:11:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:11:20,814 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:11:20,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:11:20,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 04:11:20,814 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:11:20,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 04:11:20,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 04:11:20,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:11:20,816 INFO L87 Difference]: Start difference. First operand 508 states and 831 transitions. Second operand 4 states. [2018-11-10 04:11:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:11:21,894 INFO L93 Difference]: Finished difference Result 1742 states and 2991 transitions. [2018-11-10 04:11:21,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 04:11:21,895 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2018-11-10 04:11:21,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:11:21,905 INFO L225 Difference]: With dead ends: 1742 [2018-11-10 04:11:21,905 INFO L226 Difference]: Without dead ends: 1240 [2018-11-10 04:11:21,910 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:11:21,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2018-11-10 04:11:21,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1240. [2018-11-10 04:11:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1240 states. [2018-11-10 04:11:21,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1869 transitions. [2018-11-10 04:11:21,964 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1869 transitions. Word has length 109 [2018-11-10 04:11:21,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:11:21,965 INFO L481 AbstractCegarLoop]: Abstraction has 1240 states and 1869 transitions. [2018-11-10 04:11:21,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 04:11:21,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1869 transitions. [2018-11-10 04:11:21,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-11-10 04:11:21,972 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:11:21,973 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:11:21,973 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:11:21,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:11:21,974 INFO L82 PathProgramCache]: Analyzing trace with hash -883752961, now seen corresponding path program 1 times [2018-11-10 04:11:21,974 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:11:21,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:11:21,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:11:21,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:11:21,975 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:11:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:11:22,196 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:11:22,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:11:22,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 04:11:22,197 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:11:22,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 04:11:22,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 04:11:22,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-10 04:11:22,198 INFO L87 Difference]: Start difference. First operand 1240 states and 1869 transitions. Second operand 6 states. [2018-11-10 04:11:23,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:11:23,686 INFO L93 Difference]: Finished difference Result 2759 states and 4120 transitions. [2018-11-10 04:11:23,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 04:11:23,687 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2018-11-10 04:11:23,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:11:23,696 INFO L225 Difference]: With dead ends: 2759 [2018-11-10 04:11:23,696 INFO L226 Difference]: Without dead ends: 1525 [2018-11-10 04:11:23,702 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 04:11:23,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1525 states. [2018-11-10 04:11:23,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1525 to 1485. [2018-11-10 04:11:23,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1485 states. [2018-11-10 04:11:23,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2034 transitions. [2018-11-10 04:11:23,747 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2034 transitions. Word has length 166 [2018-11-10 04:11:23,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:11:23,748 INFO L481 AbstractCegarLoop]: Abstraction has 1485 states and 2034 transitions. [2018-11-10 04:11:23,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 04:11:23,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2034 transitions. [2018-11-10 04:11:23,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-11-10 04:11:23,752 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:11:23,752 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:11:23,753 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:11:23,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:11:23,753 INFO L82 PathProgramCache]: Analyzing trace with hash 752941163, now seen corresponding path program 1 times [2018-11-10 04:11:23,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:11:23,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:11:23,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:11:23,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:11:23,755 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:11:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:11:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:11:23,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:11:23,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 04:11:23,930 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:11:23,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 04:11:23,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 04:11:23,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-10 04:11:23,932 INFO L87 Difference]: Start difference. First operand 1485 states and 2034 transitions. Second operand 6 states. [2018-11-10 04:11:24,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:11:24,749 INFO L93 Difference]: Finished difference Result 3547 states and 5008 transitions. [2018-11-10 04:11:24,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 04:11:24,749 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2018-11-10 04:11:24,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:11:24,761 INFO L225 Difference]: With dead ends: 3547 [2018-11-10 04:11:24,761 INFO L226 Difference]: Without dead ends: 2068 [2018-11-10 04:11:24,767 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 04:11:24,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2018-11-10 04:11:24,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 2051. [2018-11-10 04:11:24,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2051 states. [2018-11-10 04:11:24,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 2708 transitions. [2018-11-10 04:11:24,831 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 2708 transitions. Word has length 172 [2018-11-10 04:11:24,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:11:24,832 INFO L481 AbstractCegarLoop]: Abstraction has 2051 states and 2708 transitions. [2018-11-10 04:11:24,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 04:11:24,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 2708 transitions. [2018-11-10 04:11:24,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-11-10 04:11:24,841 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:11:24,841 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:11:24,841 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:11:24,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:11:24,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1320084340, now seen corresponding path program 1 times [2018-11-10 04:11:24,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:11:24,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:11:24,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:11:24,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:11:24,844 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:11:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:11:25,163 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-10 04:11:25,164 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:11:25,164 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 04:11:25,165 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 247 with the following transitions: [2018-11-10 04:11:25,167 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-10 04:11:25,234 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 04:11:25,234 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 04:11:27,025 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-10 04:11:44,742 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 04:11:44,744 INFO L272 AbstractInterpreter]: Visited 145 different actions 840 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-10 04:11:44,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:11:44,754 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 04:11:47,738 INFO L227 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 73.25% of their original sizes. [2018-11-10 04:11:47,738 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 04:12:18,904 INFO L415 sIntCurrentIteration]: We unified 245 AI predicates to 245 [2018-11-10 04:12:18,904 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 04:12:18,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 04:12:18,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [8] total 28 [2018-11-10 04:12:18,905 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:12:18,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-10 04:12:18,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-10 04:12:18,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2018-11-10 04:12:18,906 INFO L87 Difference]: Start difference. First operand 2051 states and 2708 transitions. Second operand 22 states. [2018-11-10 04:14:14,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:14:14,685 INFO L93 Difference]: Finished difference Result 5216 states and 6867 transitions. [2018-11-10 04:14:14,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-10 04:14:14,685 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 246 [2018-11-10 04:14:14,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:14:14,692 INFO L225 Difference]: With dead ends: 5216 [2018-11-10 04:14:14,692 INFO L226 Difference]: Without dead ends: 3171 [2018-11-10 04:14:14,695 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 257 GetRequests, 189 SyntacticMatches, 36 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=248, Invalid=874, Unknown=0, NotChecked=0, Total=1122 [2018-11-10 04:14:14,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2018-11-10 04:14:14,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 3054. [2018-11-10 04:14:14,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3054 states. [2018-11-10 04:14:14,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 3798 transitions. [2018-11-10 04:14:14,789 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 3798 transitions. Word has length 246 [2018-11-10 04:14:14,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:14:14,790 INFO L481 AbstractCegarLoop]: Abstraction has 3054 states and 3798 transitions. [2018-11-10 04:14:14,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-10 04:14:14,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 3798 transitions. [2018-11-10 04:14:14,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-11-10 04:14:14,796 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:14:14,796 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-10 04:14:14,796 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:14:14,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:14,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1863027052, now seen corresponding path program 1 times [2018-11-10 04:14:14,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:14:14,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:14,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:14:14,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:14,798 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:14:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:14:14,963 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 8 proven. 43 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-10 04:14:14,963 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:14:14,963 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 04:14:14,963 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 283 with the following transitions: [2018-11-10 04:14:14,964 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-10 04:14:14,968 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 04:14:14,968 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 04:14:16,591 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-10 04:14:27,495 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 04:14:27,495 INFO L272 AbstractInterpreter]: Visited 146 different actions 710 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-10 04:14:27,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:27,498 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 04:14:27,498 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:14:27,498 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 04:14:27,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:14:27,504 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 04:14:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:14:27,574 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:14:27,669 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-11-10 04:14:27,669 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:14:27,778 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-11-10 04:14:27,797 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-10 04:14:27,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 11 [2018-11-10 04:14:27,798 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:14:27,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 04:14:27,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 04:14:27,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-10 04:14:27,799 INFO L87 Difference]: Start difference. First operand 3054 states and 3798 transitions. Second operand 3 states. [2018-11-10 04:14:28,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:14:28,388 INFO L93 Difference]: Finished difference Result 6598 states and 8531 transitions. [2018-11-10 04:14:28,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 04:14:28,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2018-11-10 04:14:28,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:14:28,402 INFO L225 Difference]: With dead ends: 6598 [2018-11-10 04:14:28,402 INFO L226 Difference]: Without dead ends: 4185 [2018-11-10 04:14:28,410 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 565 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-10 04:14:28,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4185 states. [2018-11-10 04:14:28,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4185 to 4185. [2018-11-10 04:14:28,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4185 states. [2018-11-10 04:14:28,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4185 states to 4185 states and 5151 transitions. [2018-11-10 04:14:28,590 INFO L78 Accepts]: Start accepts. Automaton has 4185 states and 5151 transitions. Word has length 282 [2018-11-10 04:14:28,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:14:28,591 INFO L481 AbstractCegarLoop]: Abstraction has 4185 states and 5151 transitions. [2018-11-10 04:14:28,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 04:14:28,591 INFO L276 IsEmpty]: Start isEmpty. Operand 4185 states and 5151 transitions. [2018-11-10 04:14:28,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-11-10 04:14:28,601 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:14:28,602 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:14:28,602 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:14:28,602 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:28,602 INFO L82 PathProgramCache]: Analyzing trace with hash -827909397, now seen corresponding path program 1 times [2018-11-10 04:14:28,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:14:28,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:28,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:14:28,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:28,604 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:14:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:14:29,069 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 144 proven. 140 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 04:14:29,070 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:14:29,070 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 04:14:29,070 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 293 with the following transitions: [2018-11-10 04:14:29,073 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-10 04:14:29,077 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 04:14:29,078 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 04:14:31,103 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-10 04:14:40,094 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 04:14:40,094 INFO L272 AbstractInterpreter]: Visited 125 different actions 609 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-10 04:14:40,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:40,098 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 04:14:41,744 INFO L227 lantSequenceWeakener]: Weakened 28 states. On average, predicates are now at 76.79% of their original sizes. [2018-11-10 04:14:41,744 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 04:14:56,164 INFO L415 sIntCurrentIteration]: We unified 291 AI predicates to 291 [2018-11-10 04:14:56,164 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 04:14:56,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 04:14:56,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [13] total 32 [2018-11-10 04:14:56,165 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:14:56,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-10 04:14:56,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-10 04:14:56,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2018-11-10 04:14:56,166 INFO L87 Difference]: Start difference. First operand 4185 states and 5151 transitions. Second operand 21 states. [2018-11-10 04:17:58,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:17:58,472 INFO L93 Difference]: Finished difference Result 8499 states and 10697 transitions. [2018-11-10 04:17:58,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-10 04:17:58,472 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 292 [2018-11-10 04:17:58,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:17:58,482 INFO L225 Difference]: With dead ends: 8499 [2018-11-10 04:17:58,482 INFO L226 Difference]: Without dead ends: 4955 [2018-11-10 04:17:58,488 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 304 GetRequests, 247 SyntacticMatches, 25 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=202, Invalid=920, Unknown=0, NotChecked=0, Total=1122 [2018-11-10 04:17:58,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4955 states. [2018-11-10 04:17:58,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4955 to 4491. [2018-11-10 04:17:58,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4491 states. [2018-11-10 04:17:58,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4491 states to 4491 states and 5537 transitions. [2018-11-10 04:17:58,632 INFO L78 Accepts]: Start accepts. Automaton has 4491 states and 5537 transitions. Word has length 292 [2018-11-10 04:17:58,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:17:58,633 INFO L481 AbstractCegarLoop]: Abstraction has 4491 states and 5537 transitions. [2018-11-10 04:17:58,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-10 04:17:58,633 INFO L276 IsEmpty]: Start isEmpty. Operand 4491 states and 5537 transitions. [2018-11-10 04:17:58,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-11-10 04:17:58,641 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:17:58,641 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:17:58,641 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:17:58,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:58,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1466475114, now seen corresponding path program 1 times [2018-11-10 04:17:58,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:17:58,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:58,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:58,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:58,643 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:17:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:17:58,797 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 76 proven. 140 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-11-10 04:17:58,798 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:17:58,798 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 04:17:58,798 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 302 with the following transitions: [2018-11-10 04:17:58,798 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-10 04:17:58,802 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 04:17:58,802 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 04:17:59,325 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-10 04:18:16,007 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 04:18:16,007 INFO L272 AbstractInterpreter]: Visited 126 different actions 741 times. Merged at 8 different actions 44 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-10 04:18:16,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:18:16,010 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 04:18:16,010 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:18:16,010 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 04:18:16,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:18:16,016 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 04:18:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:18:16,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:18:16,359 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 29 [2018-11-10 04:18:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-11-10 04:18:16,478 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:18:16,734 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 26 [2018-11-10 04:18:16,958 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2018-11-10 04:18:16,961 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,003 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,045 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,095 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,132 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,178 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,218 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,259 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,296 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,335 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,379 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,420 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,462 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,497 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,532 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,573 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,609 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,651 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,687 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,729 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,774 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,815 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,855 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,897 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,943 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:17,983 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,032 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,068 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,107 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,145 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,180 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,217 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,254 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,307 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,351 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,389 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,428 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,512 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,549 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,588 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,646 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,691 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,765 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,814 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,858 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,907 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:18,958 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,000 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,050 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,086 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,124 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,161 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,199 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,236 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,274 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,318 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,361 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,406 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,443 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,477 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,512 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,551 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,587 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,623 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,661 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,698 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,733 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,768 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,809 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,855 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,903 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,940 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:19,976 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,011 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,054 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,091 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,127 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,176 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,229 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,277 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,320 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,364 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,404 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,454 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,503 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,551 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,591 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,631 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,669 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,706 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,744 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,789 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,825 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,859 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,895 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,943 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:20,980 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:21,017 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:21,057 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:21,097 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:21,136 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:21,189 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:21,247 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:21,289 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:21,333 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:21,382 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:21,443 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:21,491 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 04:18:21,889 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 76 proven. 215 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-10 04:18:21,906 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-10 04:18:21,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 14 [2018-11-10 04:18:21,907 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 04:18:21,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 04:18:21,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 04:18:21,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-11-10 04:18:21,908 INFO L87 Difference]: Start difference. First operand 4491 states and 5537 transitions. Second operand 9 states. [2018-11-10 04:18:22,571 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 22 [2018-11-10 04:19:12,527 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:254) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:689) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-11-10 04:19:12,530 INFO L168 Benchmark]: Toolchain (without parser) took 476404.37 ms. Allocated memory was 1.0 GB in the beginning and 5.1 GB in the end (delta: 4.0 GB). Free memory was 950.1 MB in the beginning and 3.4 GB in the end (delta: -2.4 GB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. [2018-11-10 04:19:12,531 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:19:12,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.38 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 920.6 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-11-10 04:19:12,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 152.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 920.6 MB in the beginning and 1.1 GB in the end (delta: -207.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:19:12,532 INFO L168 Benchmark]: Boogie Preprocessor took 65.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-10 04:19:12,532 INFO L168 Benchmark]: RCFGBuilder took 1391.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.6 MB). Peak memory consumption was 101.6 MB. Max. memory is 11.5 GB. [2018-11-10 04:19:12,533 INFO L168 Benchmark]: TraceAbstraction took 474324.12 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 3.4 GB in the end (delta: -2.4 GB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-11-10 04:19:12,536 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 467.38 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 920.6 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 152.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 920.6 MB in the beginning and 1.1 GB in the end (delta: -207.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1391.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.6 MB). Peak memory consumption was 101.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 474324.12 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 3.4 GB in the end (delta: -2.4 GB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:19:14,122 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:19:14,123 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:19:14,132 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:19:14,132 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:19:14,133 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:19:14,134 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:19:14,135 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:19:14,137 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:19:14,138 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:19:14,138 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:19:14,139 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:19:14,140 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:19:14,140 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:19:14,142 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:19:14,143 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:19:14,143 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:19:14,145 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:19:14,147 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:19:14,148 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:19:14,149 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:19:14,150 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:19:14,153 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:19:14,153 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:19:14,153 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:19:14,154 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:19:14,155 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:19:14,156 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:19:14,157 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:19:14,158 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:19:14,158 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:19:14,159 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:19:14,159 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:19:14,160 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:19:14,160 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:19:14,161 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:19:14,161 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 04:19:14,175 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:19:14,175 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:19:14,176 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:19:14,176 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 04:19:14,176 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 04:19:14,176 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 04:19:14,176 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 04:19:14,177 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 04:19:14,177 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:19:14,178 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:19:14,178 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:19:14,178 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:19:14,179 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:19:14,179 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:19:14,179 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:19:14,179 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 04:19:14,179 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 04:19:14,179 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:19:14,180 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:19:14,180 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:19:14,180 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:19:14,180 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:19:14,180 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:19:14,180 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:19:14,181 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:19:14,181 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:19:14,181 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:19:14,181 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:19:14,181 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 04:19:14,181 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:19:14,183 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 04:19:14,183 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 04:19:14,183 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_a24b0e10-2dbf-4534-a04a-04ca138cfad0/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 -> c2ee6781c62be40fa372129eaacaba9832af3ce9 [2018-11-10 04:19:14,216 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:19:14,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:19:14,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:19:14,229 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:19:14,230 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:19:14,230 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.c [2018-11-10 04:19:14,273 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/data/d566580a2/25512f1860064a80ad12a9410a200a87/FLAG30a8d57b5 [2018-11-10 04:19:14,679 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:19:14,680 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.c [2018-11-10 04:19:14,690 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/data/d566580a2/25512f1860064a80ad12a9410a200a87/FLAG30a8d57b5 [2018-11-10 04:19:14,701 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/data/d566580a2/25512f1860064a80ad12a9410a200a87 [2018-11-10 04:19:14,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:19:14,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:19:14,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:19:14,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:19:14,709 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:19:14,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:19:14" (1/1) ... [2018-11-10 04:19:14,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248f829a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:19:14, skipping insertion in model container [2018-11-10 04:19:14,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:19:14" (1/1) ... [2018-11-10 04:19:14,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:19:14,758 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:19:15,060 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:19:15,064 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:19:15,166 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:19:15,180 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:19:15,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:19:15 WrapperNode [2018-11-10 04:19:15,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:19:15,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:19:15,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:19:15,182 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:19:15,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:19:15" (1/1) ... [2018-11-10 04:19:15,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:19:15" (1/1) ... [2018-11-10 04:19:15,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:19:15,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:19:15,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:19:15,306 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:19:15,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:19:15" (1/1) ... [2018-11-10 04:19:15,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:19:15" (1/1) ... [2018-11-10 04:19:15,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:19:15" (1/1) ... [2018-11-10 04:19:15,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:19:15" (1/1) ... [2018-11-10 04:19:15,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:19:15" (1/1) ... [2018-11-10 04:19:15,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:19:15" (1/1) ... [2018-11-10 04:19:15,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:19:15" (1/1) ... [2018-11-10 04:19:15,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:19:15,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:19:15,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:19:15,360 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:19:15,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:19:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:19:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:19:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:19:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-10 04:19:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-10 04:19:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:19:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:19:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:19:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:19:17,815 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:19:17,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:19:17 BoogieIcfgContainer [2018-11-10 04:19:17,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:19:17,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:19:17,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:19:17,820 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:19:17,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:19:14" (1/3) ... [2018-11-10 04:19:17,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c50eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:19:17, skipping insertion in model container [2018-11-10 04:19:17,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:19:15" (2/3) ... [2018-11-10 04:19:17,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c50eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:19:17, skipping insertion in model container [2018-11-10 04:19:17,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:19:17" (3/3) ... [2018-11-10 04:19:17,824 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label49_true-unreach-call.c [2018-11-10 04:19:17,832 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:19:17,839 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 04:19:17,851 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 04:19:17,877 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 04:19:17,878 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:19:17,878 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:19:17,878 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:19:17,878 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:19:17,878 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:19:17,879 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:19:17,879 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:19:17,879 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:19:17,896 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-10 04:19:17,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 04:19:17,901 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:19:17,902 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:19:17,903 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:19:17,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:19:17,910 INFO L82 PathProgramCache]: Analyzing trace with hash -654369111, now seen corresponding path program 1 times [2018-11-10 04:19:17,914 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 04:19:17,914 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 04:19:17,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:19:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:19:17,983 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:19:18,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:19:18,064 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 04:19:18,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:19:18,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 04:19:18,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 04:19:18,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 04:19:18,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:19:18,093 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2018-11-10 04:19:24,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:19:24,161 INFO L93 Difference]: Finished difference Result 870 states and 1574 transitions. [2018-11-10 04:19:24,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 04:19:24,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-10 04:19:24,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:19:24,183 INFO L225 Difference]: With dead ends: 870 [2018-11-10 04:19:24,183 INFO L226 Difference]: Without dead ends: 644 [2018-11-10 04:19:24,189 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 04:19:24,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2018-11-10 04:19:24,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2018-11-10 04:19:24,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2018-11-10 04:19:24,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 985 transitions. [2018-11-10 04:19:24,263 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 985 transitions. Word has length 29 [2018-11-10 04:19:24,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:19:24,263 INFO L481 AbstractCegarLoop]: Abstraction has 644 states and 985 transitions. [2018-11-10 04:19:24,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 04:19:24,263 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 985 transitions. [2018-11-10 04:19:24,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-11-10 04:19:24,275 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:19:24,276 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:19:24,276 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:19:24,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:19:24,276 INFO L82 PathProgramCache]: Analyzing trace with hash 953581990, now seen corresponding path program 1 times [2018-11-10 04:19:24,279 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 04:19:24,279 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 04:19:24,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:19:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:19:24,407 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:19:24,485 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:19:24,485 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:19:24,610 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:19:24,611 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:19:24,611 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 04:19:24,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:19:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:19:24,701 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:19:24,746 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:19:24,746 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:19:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:19:24,881 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 04:19:24,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 7 [2018-11-10 04:19:24,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 04:19:24,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 04:19:24,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-10 04:19:24,883 INFO L87 Difference]: Start difference. First operand 644 states and 985 transitions. Second operand 7 states. [2018-11-10 04:19:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:19:31,730 INFO L93 Difference]: Finished difference Result 1728 states and 2839 transitions. [2018-11-10 04:19:31,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 04:19:31,731 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 228 [2018-11-10 04:19:31,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:19:31,739 INFO L225 Difference]: With dead ends: 1728 [2018-11-10 04:19:31,739 INFO L226 Difference]: Without dead ends: 1090 [2018-11-10 04:19:31,744 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 918 GetRequests, 908 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2018-11-10 04:19:31,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2018-11-10 04:19:31,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1075. [2018-11-10 04:19:31,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1075 states. [2018-11-10 04:19:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1557 transitions. [2018-11-10 04:19:31,796 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1557 transitions. Word has length 228 [2018-11-10 04:19:31,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:19:31,797 INFO L481 AbstractCegarLoop]: Abstraction has 1075 states and 1557 transitions. [2018-11-10 04:19:31,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 04:19:31,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1557 transitions. [2018-11-10 04:19:31,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-11-10 04:19:31,805 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:19:31,805 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-10 04:19:31,806 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:19:31,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:19:31,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1946824225, now seen corresponding path program 1 times [2018-11-10 04:19:31,808 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 04:19:31,808 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 04:19:31,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:19:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:19:31,937 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:19:32,203 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:19:32,203 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:19:32,486 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:19:32,488 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:19:32,488 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 04:19:32,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:19:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:19:32,599 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:19:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:19:32,666 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:19:32,800 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:19:32,821 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 04:19:32,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5, 5] total 14 [2018-11-10 04:19:32,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-10 04:19:32,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-10 04:19:32,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-11-10 04:19:32,824 INFO L87 Difference]: Start difference. First operand 1075 states and 1557 transitions. Second operand 14 states. [2018-11-10 04:19:41,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:19:41,147 INFO L93 Difference]: Finished difference Result 4077 states and 6152 transitions. [2018-11-10 04:19:41,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-10 04:19:41,147 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 237 [2018-11-10 04:19:41,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:19:41,158 INFO L225 Difference]: With dead ends: 4077 [2018-11-10 04:19:41,158 INFO L226 Difference]: Without dead ends: 1985 [2018-11-10 04:19:41,173 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 968 GetRequests, 942 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2018-11-10 04:19:41,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2018-11-10 04:19:41,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1945. [2018-11-10 04:19:41,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1945 states. [2018-11-10 04:19:41,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 2566 transitions. [2018-11-10 04:19:41,233 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 2566 transitions. Word has length 237 [2018-11-10 04:19:41,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:19:41,233 INFO L481 AbstractCegarLoop]: Abstraction has 1945 states and 2566 transitions. [2018-11-10 04:19:41,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-10 04:19:41,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 2566 transitions. [2018-11-10 04:19:41,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-11-10 04:19:41,243 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:19:41,244 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-10 04:19:41,244 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:19:41,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:19:41,244 INFO L82 PathProgramCache]: Analyzing trace with hash 365545571, now seen corresponding path program 1 times [2018-11-10 04:19:41,245 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 04:19:41,245 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 04:19:41,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:19:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:19:41,370 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:19:41,472 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 144 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:19:41,472 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:19:41,557 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-10 04:19:41,559 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:19:41,559 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 04:19:41,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:19:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:19:41,660 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:19:41,738 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-11-10 04:19:41,738 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 04:19:41,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-10 04:19:41,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 6] total 7 [2018-11-10 04:19:41,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 04:19:41,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 04:19:41,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-10 04:19:41,762 INFO L87 Difference]: Start difference. First operand 1945 states and 2566 transitions. Second operand 7 states. [2018-11-10 04:19:44,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:19:44,661 INFO L93 Difference]: Finished difference Result 4173 states and 5635 transitions. [2018-11-10 04:19:44,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 04:19:44,662 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 287 [2018-11-10 04:19:44,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:19:44,662 INFO L225 Difference]: With dead ends: 4173 [2018-11-10 04:19:44,662 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 04:19:44,672 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 863 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 04:19:44,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 04:19:44,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 04:19:44,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 04:19:44,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 04:19:44,673 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 287 [2018-11-10 04:19:44,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:19:44,674 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:19:44,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 04:19:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 04:19:44,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 04:19:44,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 04:19:45,343 WARN L179 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 47 [2018-11-10 04:19:45,487 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-10 04:19:45,644 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-10 04:19:45,646 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 04:19:45,646 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|)) [2018-11-10 04:19:45,646 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:19:45,646 INFO L425 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-11-10 04:19:45,647 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed. [2018-11-10 04:19:45,647 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,647 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,647 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,647 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,647 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,647 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,647 INFO L425 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-11-10 04:19:45,647 INFO L425 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-11-10 04:19:45,647 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-10 04:19:45,647 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-10 04:19:45,648 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-10 04:19:45,648 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-10 04:19:45,648 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-10 04:19:45,648 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-10 04:19:45,648 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-11-10 04:19:45,648 INFO L425 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-11-10 04:19:45,648 INFO L425 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-11-10 04:19:45,648 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,648 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,648 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,648 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,648 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,649 INFO L425 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-11-10 04:19:45,649 INFO L425 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-11-10 04:19:45,649 INFO L425 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-11-10 04:19:45,649 INFO L425 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-11-10 04:19:45,649 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-10 04:19:45,649 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-10 04:19:45,649 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-10 04:19:45,649 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-10 04:19:45,649 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-10 04:19:45,649 INFO L425 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-11-10 04:19:45,649 INFO L425 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-11-10 04:19:45,650 INFO L425 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-11-10 04:19:45,650 INFO L425 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-11-10 04:19:45,650 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-11-10 04:19:45,650 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,650 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,650 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,650 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,650 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,650 INFO L425 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-11-10 04:19:45,650 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-10 04:19:45,650 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-10 04:19:45,650 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-10 04:19:45,651 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-10 04:19:45,651 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-10 04:19:45,651 INFO L425 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-11-10 04:19:45,651 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-11-10 04:19:45,651 INFO L425 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-11-10 04:19:45,651 INFO L425 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-11-10 04:19:45,651 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,651 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,651 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,651 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,651 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,652 INFO L425 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-11-10 04:19:45,652 INFO L425 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-11-10 04:19:45,652 INFO L425 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-11-10 04:19:45,652 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-10 04:19:45,652 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-10 04:19:45,652 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-10 04:19:45,652 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-10 04:19:45,652 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-10 04:19:45,652 INFO L425 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-11-10 04:19:45,652 INFO L425 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-11-10 04:19:45,652 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-11-10 04:19:45,652 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-11-10 04:19:45,653 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-11-10 04:19:45,653 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,653 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,653 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,653 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,653 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,653 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-10 04:19:45,653 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-10 04:19:45,653 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-10 04:19:45,653 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-10 04:19:45,653 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-10 04:19:45,653 INFO L425 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-11-10 04:19:45,654 INFO L425 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-11-10 04:19:45,654 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-11-10 04:19:45,654 INFO L425 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-11-10 04:19:45,654 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,654 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,654 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,654 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,654 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,654 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,654 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,654 INFO L425 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-11-10 04:19:45,654 INFO L425 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-11-10 04:19:45,655 INFO L425 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-11-10 04:19:45,655 INFO L425 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-11-10 04:19:45,655 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-10 04:19:45,655 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-10 04:19:45,655 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-10 04:19:45,655 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-10 04:19:45,655 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-10 04:19:45,655 INFO L425 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-11-10 04:19:45,655 INFO L425 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-11-10 04:19:45,655 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-11-10 04:19:45,655 INFO L425 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-11-10 04:19:45,655 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,655 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,656 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,656 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,656 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-10 04:19:45,656 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,656 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,656 INFO L425 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-11-10 04:19:45,656 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-11-10 04:19:45,656 INFO L425 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-11-10 04:19:45,656 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-10 04:19:45,656 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-10 04:19:45,656 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-10 04:19:45,656 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-10 04:19:45,657 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-10 04:19:45,657 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-10 04:19:45,657 INFO L425 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-11-10 04:19:45,657 INFO L425 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-11-10 04:19:45,657 INFO L425 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-11-10 04:19:45,657 INFO L425 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-11-10 04:19:45,657 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,657 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,657 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,657 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,657 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,658 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,658 INFO L425 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-11-10 04:19:45,658 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-11-10 04:19:45,658 INFO L425 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-11-10 04:19:45,658 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-10 04:19:45,658 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-10 04:19:45,658 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-10 04:19:45,658 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-10 04:19:45,658 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-10 04:19:45,658 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-10 04:19:45,658 INFO L425 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-11-10 04:19:45,658 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-11-10 04:19:45,659 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse4 (= ~a19~0 |old(~a19~0)|))) (let ((.cse0 (not (= (_ bv14 32) ~a4~0))) (.cse3 (and (= ~a10~0 |old(~a10~0)|) .cse4)) (.cse1 (and (= (_ bv8 32) |old(~a19~0)|) (bvsge (_ bv218 32) |old(~a1~0)|) (bvslt (_ bv38 32) |old(~a1~0)|))) (.cse2 (not (= (_ bv0 32) ~a12~0)))) (and (or .cse0 .cse1 .cse2 (or (not (bvsge (_ bv218 32) ~a1~0)) (not (bvslt (_ bv38 32) ~a1~0)) (not (= (bvadd ~a19~0 (_ bv4294967288 32)) (_ bv0 32))))) (or .cse0 (not (= (_ bv0 32) |old(~a10~0)|)) .cse3 .cse2) (or (and (= (bvadd ~a10~0 (_ bv4294967292 32)) (_ bv0 32)) .cse4) .cse0 .cse2 (not (= (_ bv4 32) |old(~a10~0)|))) (or .cse0 .cse3 .cse1 .cse2)))) [2018-11-10 04:19:45,659 INFO L425 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-11-10 04:19:45,659 INFO L425 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-11-10 04:19:45,659 INFO L425 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-11-10 04:19:45,659 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,659 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,659 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,659 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,659 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,659 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,660 INFO L425 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-11-10 04:19:45,660 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-10 04:19:45,660 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-10 04:19:45,660 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-10 04:19:45,660 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-10 04:19:45,660 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-10 04:19:45,660 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-10 04:19:45,660 INFO L425 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-11-10 04:19:45,660 INFO L425 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-11-10 04:19:45,660 INFO L425 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-11-10 04:19:45,660 INFO L425 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-11-10 04:19:45,660 INFO L425 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-11-10 04:19:45,660 INFO L425 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-11-10 04:19:45,661 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,661 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,661 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,661 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,661 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,661 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,661 INFO L425 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-11-10 04:19:45,661 INFO L425 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-11-10 04:19:45,661 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-11-10 04:19:45,661 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-10 04:19:45,661 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-10 04:19:45,661 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-10 04:19:45,661 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-10 04:19:45,662 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-10 04:19:45,662 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-10 04:19:45,662 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-11-10 04:19:45,662 INFO L425 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-11-10 04:19:45,662 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-11-10 04:19:45,662 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,662 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,662 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,662 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,662 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,662 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-11-10 04:19:45,662 INFO L425 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-11-10 04:19:45,663 INFO L425 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-11-10 04:19:45,663 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-11-10 04:19:45,663 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-10 04:19:45,663 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-10 04:19:45,663 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-10 04:19:45,663 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-10 04:19:45,663 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-10 04:19:45,663 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-10 04:19:45,663 INFO L425 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-11-10 04:19:45,663 INFO L425 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-11-10 04:19:45,663 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-11-10 04:19:45,663 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:19:45,664 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= (bvadd ~a19~0 (_ bv4294967286 32)) (_ bv0 32))) (= ~a10~0 (_ bv0 32)) (= (_ bv14 32) ~a4~0) (= ~a12~0 (_ bv0 32)) (or (not (bvsge (_ bv218 32) ~a1~0)) (not (bvslt (_ bv38 32) ~a1~0)) (not (= (bvadd ~a19~0 (_ bv4294967288 32)) (_ bv0 32))))) [2018-11-10 04:19:45,664 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 04:19:45,664 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 04:19:45,664 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= (_ bv14 32) ~a4~0)) (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (or (not (bvsge (_ bv218 32) ~a1~0)) (not (bvslt (_ bv38 32) ~a1~0)) (not (= (bvadd ~a19~0 (_ bv4294967288 32)) (_ bv0 32))))) (and (= (_ bv8 32) |old(~a19~0)|) (bvsge (_ bv218 32) |old(~a1~0)|) (bvslt (_ bv38 32) |old(~a1~0)|)) (not (= (_ bv0 32) |old(~a10~0)|)) (not (= (_ bv0 32) ~a12~0)) (= (_ bv10 32) |old(~a19~0)|)) [2018-11-10 04:19:45,664 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-11-10 04:19:45,664 INFO L421 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse2 (not (= (_ bv14 32) ~a4~0))) (.cse4 (= (_ bv8 32) |old(~a19~0)|))) (let ((.cse0 (= ~a10~0 (_ bv0 32))) (.cse1 (not .cse4)) (.cse3 (or .cse2 (not (= ~a12~0 (_ bv0 32))) (not (bvsge (_ bv218 32) ~a1~0)) (not (bvslt (_ bv38 32) ~a1~0)) (not (= (bvadd ~a19~0 (_ bv4294967288 32)) (_ bv0 32)))))) (or (and .cse0 .cse1) .cse2 (and .cse0 .cse3 (= ~a19~0 |old(~a19~0)|)) (and .cse4 (bvsge (_ bv218 32) |old(~a1~0)|) (bvslt (_ bv38 32) |old(~a1~0)|)) (not (= (_ bv0 32) |old(~a10~0)|)) (and .cse1 (= (bvadd ~a10~0 (_ bv4294967292 32)) (_ bv0 32))) (not (= (_ bv0 32) ~a12~0)) (and .cse1 .cse3) (= (_ bv10 32) |old(~a19~0)|)))) [2018-11-10 04:19:45,664 INFO L425 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-11-10 04:19:45,665 INFO L425 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-11-10 04:19:45,665 INFO L425 ceAbstractionStarter]: For program point L582-1(lines 582 591) no Hoare annotation was computed. [2018-11-10 04:19:45,665 INFO L421 ceAbstractionStarter]: At program point L582-3(lines 582 591) the Hoare annotation is: (let ((.cse2 (not (= (_ bv14 32) ~a4~0))) (.cse4 (= (_ bv8 32) |old(~a19~0)|))) (let ((.cse0 (= ~a10~0 (_ bv0 32))) (.cse1 (not .cse4)) (.cse3 (or .cse2 (not (= ~a12~0 (_ bv0 32))) (not (bvsge (_ bv218 32) ~a1~0)) (not (bvslt (_ bv38 32) ~a1~0)) (not (= (bvadd ~a19~0 (_ bv4294967288 32)) (_ bv0 32)))))) (or (and .cse0 .cse1) .cse2 (and .cse0 .cse3 (= ~a19~0 |old(~a19~0)|)) (and .cse4 (bvsge (_ bv218 32) |old(~a1~0)|) (bvslt (_ bv38 32) |old(~a1~0)|)) (not (= (_ bv0 32) |old(~a10~0)|)) (and .cse1 (= (bvadd ~a10~0 (_ bv4294967292 32)) (_ bv0 32))) (not (= (_ bv0 32) ~a12~0)) (and .cse1 .cse3) (= (_ bv10 32) |old(~a19~0)|)))) [2018-11-10 04:19:45,665 INFO L425 ceAbstractionStarter]: For program point L582-4(lines 576 592) no Hoare annotation was computed. [2018-11-10 04:19:45,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:19:45 BoogieIcfgContainer [2018-11-10 04:19:45,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:19:45,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:19:45,680 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:19:45,680 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:19:45,681 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:19:17" (3/4) ... [2018-11-10 04:19:45,684 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 04:19:45,692 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 04:19:45,692 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-10 04:19:45,692 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 04:19:45,702 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 04:19:45,703 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 04:19:45,730 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((a10 == 0bv32 && !(8bv32 == \old(a19))) || !(14bv32 == a4)) || ((a10 == 0bv32 && ((((!(14bv32 == a4) || !(a12 == 0bv32)) || !~bvsge32(218bv32, a1)) || !~bvslt32(38bv32, a1)) || !(~bvadd64(a19, 4294967288bv32) == 0bv32))) && a19 == \old(a19))) || ((8bv32 == \old(a19) && ~bvsge32(218bv32, \old(a1))) && ~bvslt32(38bv32, \old(a1)))) || !(0bv32 == \old(a10))) || (!(8bv32 == \old(a19)) && ~bvadd64(a10, 4294967292bv32) == 0bv32)) || !(0bv32 == a12)) || (!(8bv32 == \old(a19)) && ((((!(14bv32 == a4) || !(a12 == 0bv32)) || !~bvsge32(218bv32, a1)) || !~bvslt32(38bv32, a1)) || !(~bvadd64(a19, 4294967288bv32) == 0bv32)))) || 10bv32 == \old(a19) [2018-11-10 04:19:45,824 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a24b0e10-2dbf-4534-a04a-04ca138cfad0/bin-2019/utaipan/witness.graphml [2018-11-10 04:19:45,825 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:19:45,825 INFO L168 Benchmark]: Toolchain (without parser) took 31120.63 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 468.7 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -128.8 MB). Peak memory consumption was 339.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:19:45,826 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:19:45,826 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.20 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 901.4 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:19:45,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 901.4 MB in the beginning and 1.1 GB in the end (delta: -240.2 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:19:45,827 INFO L168 Benchmark]: Boogie Preprocessor took 53.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:19:45,827 INFO L168 Benchmark]: RCFGBuilder took 2456.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 114.5 MB). Peak memory consumption was 114.5 MB. Max. memory is 11.5 GB. [2018-11-10 04:19:45,827 INFO L168 Benchmark]: TraceAbstraction took 27863.23 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 310.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -65.6 MB). Peak memory consumption was 245.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:19:45,827 INFO L168 Benchmark]: Witness Printer took 144.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:19:45,829 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 475.20 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 901.4 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 123.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 901.4 MB in the beginning and 1.1 GB in the end (delta: -240.2 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2456.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 114.5 MB). Peak memory consumption was 114.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27863.23 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 310.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -65.6 MB). Peak memory consumption was 245.3 MB. Max. memory is 11.5 GB. * Witness Printer took 144.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 70]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((((a10 == 0bv32 && !(8bv32 == \old(a19))) || !(14bv32 == a4)) || ((a10 == 0bv32 && ((((!(14bv32 == a4) || !(a12 == 0bv32)) || !~bvsge32(218bv32, a1)) || !~bvslt32(38bv32, a1)) || !(~bvadd64(a19, 4294967288bv32) == 0bv32))) && a19 == \old(a19))) || ((8bv32 == \old(a19) && ~bvsge32(218bv32, \old(a1))) && ~bvslt32(38bv32, \old(a1)))) || !(0bv32 == \old(a10))) || (!(8bv32 == \old(a19)) && ~bvadd64(a10, 4294967292bv32) == 0bv32)) || !(0bv32 == a12)) || (!(8bv32 == \old(a19)) && ((((!(14bv32 == a4) || !(a12 == 0bv32)) || !~bvsge32(218bv32, a1)) || !~bvslt32(38bv32, a1)) || !(~bvadd64(a19, 4294967288bv32) == 0bv32)))) || 10bv32 == \old(a19) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. SAFE Result, 27.7s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 24.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 345 SDtfs, 5205 SDslu, 598 SDs, 0 SdLazy, 6303 SolverSat, 2546 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2778 GetRequests, 2732 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1945occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 55 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 49 PreInvPairs, 91 NumberOfFragments, 412 HoareAnnotationTreeSize, 49 FomulaSimplifications, 3097 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1967 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1533 NumberOfCodeBlocks, 1533 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 2738 ConstructedInterpolants, 0 QuantifiedInterpolants, 3321644 SizeOfPredicates, 24 NumberOfNonLiveVariables, 2045 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 1402/1436 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...