./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum05_false-unreach-call_true-termination.i --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_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum05_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/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 1633e43e3f340ce4ae371cafc3d1ea0a9dad5739 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 01:06:36,688 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 01:06:36,690 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 01:06:36,703 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 01:06:36,704 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 01:06:36,705 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 01:06:36,708 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 01:06:36,710 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 01:06:36,713 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 01:06:36,715 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 01:06:36,717 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 01:06:36,718 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 01:06:36,719 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 01:06:36,721 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 01:06:36,723 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 01:06:36,731 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 01:06:36,731 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 01:06:36,733 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 01:06:36,737 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 01:06:36,739 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 01:06:36,739 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 01:06:36,740 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 01:06:36,745 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 01:06:36,745 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 01:06:36,745 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 01:06:36,746 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 01:06:36,747 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 01:06:36,748 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 01:06:36,748 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 01:06:36,749 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 01:06:36,749 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 01:06:36,750 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 01:06:36,750 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 01:06:36,750 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 01:06:36,751 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 01:06:36,752 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 01:06:36,752 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-27 01:06:36,764 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 01:06:36,764 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 01:06:36,765 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 01:06:36,765 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 01:06:36,765 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 01:06:36,765 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 01:06:36,765 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 01:06:36,766 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 01:06:36,766 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 01:06:36,766 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 01:06:36,767 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 01:06:36,768 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 01:06:36,768 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 01:06:36,768 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 01:06:36,768 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 01:06:36,769 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 01:06:36,769 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 01:06:36,769 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 01:06:36,769 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 01:06:36,769 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 01:06:36,769 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 01:06:36,770 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 01:06:36,770 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 01:06:36,770 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 01:06:36,770 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 01:06:36,770 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 01:06:36,770 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 01:06:36,771 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 01:06:36,771 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 01:06:36,771 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 01:06:36,771 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 01:06:36,771 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 01:06:36,771 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 01:06:36,772 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 01:06:36,772 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_65c77639-af1e-4603-aa64-f56256cb8cf1/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 -> 1633e43e3f340ce4ae371cafc3d1ea0a9dad5739 [2018-10-27 01:06:36,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 01:06:36,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 01:06:36,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 01:06:36,832 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 01:06:36,833 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 01:06:36,833 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/../../sv-benchmarks/c/reducercommutativity/rangesum05_false-unreach-call_true-termination.i [2018-10-27 01:06:36,895 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/data/098170cd4/ce475fd60cde426a99e0554ba3ede556/FLAG1859d29c4 [2018-10-27 01:06:37,288 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 01:06:37,289 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/sv-benchmarks/c/reducercommutativity/rangesum05_false-unreach-call_true-termination.i [2018-10-27 01:06:37,295 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/data/098170cd4/ce475fd60cde426a99e0554ba3ede556/FLAG1859d29c4 [2018-10-27 01:06:37,307 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/data/098170cd4/ce475fd60cde426a99e0554ba3ede556 [2018-10-27 01:06:37,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 01:06:37,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 01:06:37,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 01:06:37,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 01:06:37,317 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 01:06:37,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:06:37" (1/1) ... [2018-10-27 01:06:37,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@319a98b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:37, skipping insertion in model container [2018-10-27 01:06:37,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:06:37" (1/1) ... [2018-10-27 01:06:37,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 01:06:37,354 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 01:06:37,507 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 01:06:37,516 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 01:06:37,538 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 01:06:37,554 INFO L193 MainTranslator]: Completed translation [2018-10-27 01:06:37,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:37 WrapperNode [2018-10-27 01:06:37,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 01:06:37,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 01:06:37,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 01:06:37,556 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 01:06:37,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:37" (1/1) ... [2018-10-27 01:06:37,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:37" (1/1) ... [2018-10-27 01:06:37,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 01:06:37,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 01:06:37,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 01:06:37,603 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 01:06:37,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:37" (1/1) ... [2018-10-27 01:06:37,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:37" (1/1) ... [2018-10-27 01:06:37,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:37" (1/1) ... [2018-10-27 01:06:37,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:37" (1/1) ... [2018-10-27 01:06:37,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:37" (1/1) ... [2018-10-27 01:06:37,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:37" (1/1) ... [2018-10-27 01:06:37,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:37" (1/1) ... [2018-10-27 01:06:37,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 01:06:37,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 01:06:37,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 01:06:37,635 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 01:06:37,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/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 [2018-10-27 01:06:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 01:06:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 01:06:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 01:06:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 01:06:37,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 01:06:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 01:06:37,791 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2018-10-27 01:06:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2018-10-27 01:06:37,791 INFO L130 BoogieDeclarations]: Found specification of procedure init_nondet [2018-10-27 01:06:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure init_nondet [2018-10-27 01:06:38,358 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 01:06:38,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:06:38 BoogieIcfgContainer [2018-10-27 01:06:38,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 01:06:38,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 01:06:38,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 01:06:38,363 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 01:06:38,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:06:37" (1/3) ... [2018-10-27 01:06:38,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4deaf89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:06:38, skipping insertion in model container [2018-10-27 01:06:38,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:06:37" (2/3) ... [2018-10-27 01:06:38,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4deaf89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:06:38, skipping insertion in model container [2018-10-27 01:06:38,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:06:38" (3/3) ... [2018-10-27 01:06:38,367 INFO L112 eAbstractionObserver]: Analyzing ICFG rangesum05_false-unreach-call_true-termination.i [2018-10-27 01:06:38,377 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 01:06:38,385 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 01:06:38,402 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 01:06:38,435 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 01:06:38,435 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 01:06:38,435 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 01:06:38,435 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 01:06:38,435 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 01:06:38,436 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 01:06:38,436 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 01:06:38,436 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 01:06:38,454 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-10-27 01:06:38,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-27 01:06:38,462 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:06:38,463 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 01:06:38,465 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:06:38,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:38,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1049289672, now seen corresponding path program 1 times [2018-10-27 01:06:38,478 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 01:06:38,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:38,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:38,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:38,518 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 01:06:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:06:38,606 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2018-10-27 01:06:38,606 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 01:06:38,606 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 01:06:38,607 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-10-27 01:06:38,611 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [7], [9], [11], [24], [26], [28], [31], [32], [39], [57], [61], [63], [64], [77], [79], [80], [81], [82], [84], [85], [86], [87], [88], [89], [90], [91] [2018-10-27 01:06:38,689 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 01:06:38,689 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 01:06:38,902 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 01:06:38,903 INFO L272 AbstractInterpreter]: Visited 9 different actions 9 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-10-27 01:06:38,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:38,923 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 01:06:39,016 INFO L227 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 93.06% of their original sizes. [2018-10-27 01:06:39,017 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 01:06:39,098 INFO L415 sIntCurrentIteration]: We unified 36 AI predicates to 36 [2018-10-27 01:06:39,099 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 01:06:39,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 01:06:39,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 01:06:39,101 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 01:06:39,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 01:06:39,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 01:06:39,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 01:06:39,112 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 4 states. [2018-10-27 01:06:39,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 01:06:39,552 INFO L93 Difference]: Finished difference Result 69 states and 90 transitions. [2018-10-27 01:06:39,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 01:06:39,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-10-27 01:06:39,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 01:06:39,563 INFO L225 Difference]: With dead ends: 69 [2018-10-27 01:06:39,564 INFO L226 Difference]: Without dead ends: 35 [2018-10-27 01:06:39,567 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 01:06:39,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-27 01:06:39,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-10-27 01:06:39,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-10-27 01:06:39,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2018-10-27 01:06:39,614 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 37 [2018-10-27 01:06:39,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 01:06:39,615 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2018-10-27 01:06:39,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 01:06:39,615 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2018-10-27 01:06:39,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-27 01:06:39,617 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:06:39,617 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 01:06:39,618 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:06:39,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:39,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1338067039, now seen corresponding path program 1 times [2018-10-27 01:06:39,618 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 01:06:39,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:39,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:39,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:39,620 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 01:06:39,635 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-27 01:06:39,635 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-27 01:06:39,635 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-27 01:06:39,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:39,647 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-27 01:06:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:06:39,715 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-10-27 01:06:39,715 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [7], [9], [11], [15], [18], [26], [28], [31], [32], [39], [43], [46], [61], [63], [64], [68], [71], [79], [80], [81], [82], [84], [85], [86], [87], [88], [89], [90], [91] [2018-10-27 01:06:39,718 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 01:06:39,718 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 01:06:39,753 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 01:06:39,753 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-10-27 01:06:39,791 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:39,791 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 01:06:39,858 INFO L227 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 91.36% of their original sizes. [2018-10-27 01:06:39,859 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 01:06:39,967 INFO L415 sIntCurrentIteration]: We unified 41 AI predicates to 41 [2018-10-27 01:06:39,967 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 01:06:39,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 01:06:39,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 01:06:39,968 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 01:06:39,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 01:06:39,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 01:06:39,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 01:06:39,969 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 5 states. [2018-10-27 01:06:40,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 01:06:40,421 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2018-10-27 01:06:40,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 01:06:40,422 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2018-10-27 01:06:40,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 01:06:40,423 INFO L225 Difference]: With dead ends: 62 [2018-10-27 01:06:40,423 INFO L226 Difference]: Without dead ends: 38 [2018-10-27 01:06:40,424 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 01:06:40,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-10-27 01:06:40,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2018-10-27 01:06:40,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-27 01:06:40,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-10-27 01:06:40,434 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 42 [2018-10-27 01:06:40,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 01:06:40,435 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-10-27 01:06:40,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 01:06:40,435 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-10-27 01:06:40,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-27 01:06:40,436 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:06:40,436 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 01:06:40,437 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:06:40,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:40,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1866850875, now seen corresponding path program 1 times [2018-10-27 01:06:40,437 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 01:06:40,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:40,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:40,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:40,441 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 01:06:40,457 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-27 01:06:40,457 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-27 01:06:40,457 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-27 01:06:40,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:40,486 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-27 01:06:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:06:40,563 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 46 with the following transitions: [2018-10-27 01:06:40,563 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [7], [9], [11], [15], [18], [26], [28], [31], [32], [39], [43], [46], [61], [63], [64], [68], [71], [73], [75], [79], [80], [81], [82], [84], [85], [86], [87], [88], [89], [90], [91] [2018-10-27 01:06:40,565 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 01:06:40,565 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 01:06:40,750 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 01:06:40,755 INFO L272 AbstractInterpreter]: Visited 19 different actions 39 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 37 variables. [2018-10-27 01:06:40,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:40,782 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 01:06:40,867 INFO L227 lantSequenceWeakener]: Weakened 19 states. On average, predicates are now at 85.03% of their original sizes. [2018-10-27 01:06:40,867 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 01:06:41,581 INFO L415 sIntCurrentIteration]: We unified 44 AI predicates to 44 [2018-10-27 01:06:41,582 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 01:06:41,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 01:06:41,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-27 01:06:41,582 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 01:06:41,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 01:06:41,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 01:06:41,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-10-27 01:06:41,584 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 9 states. [2018-10-27 01:06:42,700 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 01:06:43,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 01:06:43,447 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions. [2018-10-27 01:06:43,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 01:06:43,447 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2018-10-27 01:06:43,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 01:06:43,448 INFO L225 Difference]: With dead ends: 61 [2018-10-27 01:06:43,448 INFO L226 Difference]: Without dead ends: 41 [2018-10-27 01:06:43,449 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-10-27 01:06:43,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-10-27 01:06:43,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-10-27 01:06:43,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-27 01:06:43,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2018-10-27 01:06:43,460 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 45 [2018-10-27 01:06:43,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 01:06:43,460 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2018-10-27 01:06:43,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 01:06:43,461 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-10-27 01:06:43,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-27 01:06:43,465 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:06:43,465 INFO L375 BasicCegarLoop]: trace histogram [6, 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] [2018-10-27 01:06:43,465 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:06:43,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:43,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1254084674, now seen corresponding path program 1 times [2018-10-27 01:06:43,466 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 01:06:43,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:43,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:43,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:43,467 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 01:06:43,491 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-27 01:06:43,491 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-27 01:06:43,492 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-27 01:06:43,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:43,509 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-27 01:06:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:06:43,567 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 58 with the following transitions: [2018-10-27 01:06:43,567 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [7], [9], [11], [15], [18], [26], [28], [31], [32], [39], [43], [46], [48], [53], [55], [61], [63], [64], [68], [71], [73], [75], [79], [80], [81], [82], [84], [85], [86], [87], [88], [89], [90], [91] [2018-10-27 01:06:43,569 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 01:06:43,569 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 01:06:43,703 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 01:06:43,703 INFO L272 AbstractInterpreter]: Visited 22 different actions 57 times. Merged at 7 different actions 27 times. Widened at 1 different actions 1 times. Found 2 fixpoints after 2 different actions. Largest state had 37 variables. [2018-10-27 01:06:43,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:43,743 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 01:06:43,815 INFO L227 lantSequenceWeakener]: Weakened 23 states. On average, predicates are now at 82.89% of their original sizes. [2018-10-27 01:06:43,816 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 01:06:44,131 INFO L415 sIntCurrentIteration]: We unified 56 AI predicates to 56 [2018-10-27 01:06:44,132 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 01:06:44,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 01:06:44,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-27 01:06:44,132 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 01:06:44,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 01:06:44,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 01:06:44,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-10-27 01:06:44,133 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 10 states. [2018-10-27 01:06:44,804 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 01:06:45,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 01:06:45,259 INFO L93 Difference]: Finished difference Result 67 states and 82 transitions. [2018-10-27 01:06:45,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 01:06:45,259 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-10-27 01:06:45,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 01:06:45,260 INFO L225 Difference]: With dead ends: 67 [2018-10-27 01:06:45,260 INFO L226 Difference]: Without dead ends: 44 [2018-10-27 01:06:45,261 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-10-27 01:06:45,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-27 01:06:45,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-10-27 01:06:45,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-27 01:06:45,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2018-10-27 01:06:45,270 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 57 [2018-10-27 01:06:45,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 01:06:45,271 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2018-10-27 01:06:45,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 01:06:45,271 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2018-10-27 01:06:45,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-27 01:06:45,273 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:06:45,273 INFO L375 BasicCegarLoop]: trace histogram [9, 6, 6, 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] [2018-10-27 01:06:45,273 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:06:45,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:45,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1360907787, now seen corresponding path program 1 times [2018-10-27 01:06:45,274 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 01:06:45,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:45,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:45,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:45,278 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 01:06:45,308 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-27 01:06:45,308 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-27 01:06:45,308 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-27 01:06:45,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:45,328 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-27 01:06:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:06:45,396 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 70 with the following transitions: [2018-10-27 01:06:45,396 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [7], [9], [11], [15], [18], [26], [28], [31], [32], [39], [43], [46], [48], [51], [53], [55], [61], [63], [64], [68], [71], [73], [75], [79], [80], [81], [82], [84], [85], [86], [87], [88], [89], [90], [91] [2018-10-27 01:06:45,398 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 01:06:45,399 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 01:06:45,575 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 01:06:45,955 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 01:06:45,956 INFO L272 AbstractInterpreter]: Visited 32 different actions 153 times. Merged at 11 different actions 81 times. Widened at 2 different actions 7 times. Found 15 fixpoints after 6 different actions. Largest state had 37 variables. [2018-10-27 01:06:45,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:45,998 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 01:06:46,184 INFO L227 lantSequenceWeakener]: Weakened 49 states. On average, predicates are now at 77.76% of their original sizes. [2018-10-27 01:06:46,184 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 01:06:46,599 INFO L415 sIntCurrentIteration]: We unified 68 AI predicates to 68 [2018-10-27 01:06:46,600 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 01:06:46,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 01:06:46,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-10-27 01:06:46,600 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 01:06:46,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-27 01:06:46,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-27 01:06:46,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2018-10-27 01:06:46,602 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 19 states. [2018-10-27 01:06:50,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 01:06:50,916 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2018-10-27 01:06:50,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-27 01:06:50,917 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 69 [2018-10-27 01:06:50,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 01:06:50,918 INFO L225 Difference]: With dead ends: 75 [2018-10-27 01:06:50,918 INFO L226 Difference]: Without dead ends: 48 [2018-10-27 01:06:50,918 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 77 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2018-10-27 01:06:50,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-10-27 01:06:50,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2018-10-27 01:06:50,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-10-27 01:06:50,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2018-10-27 01:06:50,927 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 69 [2018-10-27 01:06:50,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 01:06:50,928 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2018-10-27 01:06:50,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-27 01:06:50,929 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2018-10-27 01:06:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-27 01:06:50,932 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:06:50,932 INFO L375 BasicCegarLoop]: trace histogram [9, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 01:06:50,933 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:06:50,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:50,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1443367440, now seen corresponding path program 1 times [2018-10-27 01:06:50,933 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 01:06:50,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:50,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:50,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:50,936 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 01:06:50,951 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-27 01:06:50,952 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-27 01:06:50,952 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-27 01:06:50,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:50,971 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-27 01:06:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:06:51,036 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 73 with the following transitions: [2018-10-27 01:06:51,036 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [7], [9], [11], [15], [18], [20], [22], [26], [28], [31], [32], [39], [43], [46], [48], [51], [53], [55], [61], [63], [64], [68], [71], [73], [75], [79], [80], [81], [82], [84], [85], [86], [87], [88], [89], [90], [91] [2018-10-27 01:06:51,038 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 01:06:51,038 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 01:06:51,226 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 01:06:52,020 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 01:06:52,020 INFO L272 AbstractInterpreter]: Visited 40 different actions 231 times. Merged at 14 different actions 125 times. Widened at 2 different actions 10 times. Found 23 fixpoints after 8 different actions. Largest state had 39 variables. [2018-10-27 01:06:52,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:52,055 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 01:06:52,055 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 01:06:52,056 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 01:06:52,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:52,067 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 01:06:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:06:52,140 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 01:06:52,308 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-10-27 01:06:52,308 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 01:06:52,441 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-10-27 01:06:52,469 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 01:06:52,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-10-27 01:06:52,469 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 01:06:52,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 01:06:52,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 01:06:52,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-27 01:06:52,472 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand 6 states. [2018-10-27 01:06:52,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 01:06:52,580 INFO L93 Difference]: Finished difference Result 88 states and 102 transitions. [2018-10-27 01:06:52,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 01:06:52,581 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2018-10-27 01:06:52,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 01:06:52,582 INFO L225 Difference]: With dead ends: 88 [2018-10-27 01:06:52,582 INFO L226 Difference]: Without dead ends: 55 [2018-10-27 01:06:52,584 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-27 01:06:52,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-10-27 01:06:52,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-10-27 01:06:52,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-10-27 01:06:52,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2018-10-27 01:06:52,595 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 72 [2018-10-27 01:06:52,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 01:06:52,595 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2018-10-27 01:06:52,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 01:06:52,596 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2018-10-27 01:06:52,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-27 01:06:52,597 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:06:52,597 INFO L375 BasicCegarLoop]: trace histogram [9, 6, 6, 5, 4, 4, 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] [2018-10-27 01:06:52,597 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:06:52,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:52,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1140034890, now seen corresponding path program 2 times [2018-10-27 01:06:52,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 01:06:52,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:52,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:52,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:52,602 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 01:06:52,620 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-27 01:06:52,620 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-27 01:06:52,620 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-27 01:06:52,638 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 01:06:52,638 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-27 01:06:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:06:52,695 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-10-27 01:06:52,696 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 01:06:52,696 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 01:06:52,696 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 01:06:52,703 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-27 01:06:52,704 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-10-27 01:06:52,756 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-10-27 01:06:52,756 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 01:06:52,759 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 01:06:52,789 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 47 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-27 01:06:52,790 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 01:06:52,850 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 47 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-27 01:06:52,870 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 01:06:52,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-10-27 01:06:52,870 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 01:06:52,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 01:06:52,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 01:06:52,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-27 01:06:52,871 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand 5 states. [2018-10-27 01:06:52,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 01:06:52,934 INFO L93 Difference]: Finished difference Result 91 states and 107 transitions. [2018-10-27 01:06:52,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 01:06:52,935 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2018-10-27 01:06:52,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 01:06:52,936 INFO L225 Difference]: With dead ends: 91 [2018-10-27 01:06:52,936 INFO L226 Difference]: Without dead ends: 62 [2018-10-27 01:06:52,936 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-27 01:06:52,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-10-27 01:06:52,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2018-10-27 01:06:52,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-27 01:06:52,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2018-10-27 01:06:52,949 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 81 [2018-10-27 01:06:52,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 01:06:52,949 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2018-10-27 01:06:52,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 01:06:52,949 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2018-10-27 01:06:52,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-27 01:06:52,952 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:06:52,953 INFO L375 BasicCegarLoop]: trace histogram [12, 9, 9, 6, 5, 4, 4, 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] [2018-10-27 01:06:52,953 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:06:52,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:52,953 INFO L82 PathProgramCache]: Analyzing trace with hash -406978351, now seen corresponding path program 3 times [2018-10-27 01:06:52,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 01:06:52,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:52,954 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 01:06:52,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:52,954 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 01:06:52,975 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-27 01:06:52,975 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-27 01:06:52,975 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-27 01:06:52,998 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 01:06:52,998 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-27 01:06:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:06:53,043 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-10-27 01:06:53,043 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 01:06:53,043 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 01:06:53,043 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 01:06:53,050 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-27 01:06:53,050 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-10-27 01:06:53,102 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-27 01:06:53,102 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 01:06:53,109 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 01:06:53,206 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2018-10-27 01:06:53,207 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 01:06:53,254 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2018-10-27 01:06:53,275 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 01:06:53,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-10-27 01:06:53,275 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 01:06:53,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 01:06:53,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 01:06:53,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-10-27 01:06:53,276 INFO L87 Difference]: Start difference. First operand 58 states and 64 transitions. Second operand 7 states. [2018-10-27 01:06:53,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 01:06:53,329 INFO L93 Difference]: Finished difference Result 97 states and 109 transitions. [2018-10-27 01:06:53,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 01:06:53,330 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2018-10-27 01:06:53,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 01:06:53,332 INFO L225 Difference]: With dead ends: 97 [2018-10-27 01:06:53,332 INFO L226 Difference]: Without dead ends: 61 [2018-10-27 01:06:53,332 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 175 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-10-27 01:06:53,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-10-27 01:06:53,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-10-27 01:06:53,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-10-27 01:06:53,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2018-10-27 01:06:53,343 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 93 [2018-10-27 01:06:53,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 01:06:53,350 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2018-10-27 01:06:53,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 01:06:53,351 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2018-10-27 01:06:53,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-27 01:06:53,352 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:06:53,352 INFO L375 BasicCegarLoop]: trace histogram [12, 9, 9, 6, 6, 5, 5, 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] [2018-10-27 01:06:53,352 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:06:53,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:53,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1333490261, now seen corresponding path program 4 times [2018-10-27 01:06:53,353 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 01:06:53,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:53,353 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 01:06:53,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:53,354 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 01:06:53,392 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-27 01:06:53,393 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-27 01:06:53,393 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-27 01:06:53,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:53,433 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-27 01:06:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:06:53,481 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-10-27 01:06:53,482 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 01:06:53,482 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 01:06:53,482 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 01:06:53,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:53,500 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 01:06:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:06:53,562 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 01:06:53,706 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 64 proven. 3 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2018-10-27 01:06:53,706 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 01:06:53,856 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 12 proven. 109 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2018-10-27 01:06:53,879 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 01:06:53,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-10-27 01:06:53,879 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 01:06:53,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 01:06:53,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 01:06:53,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-27 01:06:53,880 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand 5 states. [2018-10-27 01:06:53,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 01:06:53,920 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2018-10-27 01:06:53,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 01:06:53,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2018-10-27 01:06:53,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 01:06:53,922 INFO L225 Difference]: With dead ends: 101 [2018-10-27 01:06:53,922 INFO L226 Difference]: Without dead ends: 69 [2018-10-27 01:06:53,923 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-27 01:06:53,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-10-27 01:06:53,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-10-27 01:06:53,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-10-27 01:06:53,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2018-10-27 01:06:53,935 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 96 [2018-10-27 01:06:53,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 01:06:53,936 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2018-10-27 01:06:53,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 01:06:53,936 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2018-10-27 01:06:53,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-27 01:06:53,937 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:06:53,938 INFO L375 BasicCegarLoop]: trace histogram [18, 15, 15, 9, 6, 6, 5, 5, 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] [2018-10-27 01:06:53,938 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:06:53,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:53,941 INFO L82 PathProgramCache]: Analyzing trace with hash 418047701, now seen corresponding path program 5 times [2018-10-27 01:06:53,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 01:06:53,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:53,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:06:53,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:53,942 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 01:06:53,963 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-27 01:06:53,963 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-27 01:06:53,963 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-27 01:06:53,983 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 01:06:53,983 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-27 01:06:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:06:54,052 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-10-27 01:06:54,052 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 01:06:54,052 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 01:06:54,052 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 01:06:54,060 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-27 01:06:54,060 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-10-27 01:06:54,113 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-10-27 01:06:54,113 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 01:06:54,115 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 01:06:54,139 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 252 proven. 2 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2018-10-27 01:06:54,140 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 01:06:54,245 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2018-10-27 01:06:54,276 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 01:06:54,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-10-27 01:06:54,276 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 01:06:54,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 01:06:54,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 01:06:54,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-27 01:06:54,277 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 6 states. [2018-10-27 01:06:54,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 01:06:54,484 INFO L93 Difference]: Finished difference Result 110 states and 121 transitions. [2018-10-27 01:06:54,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 01:06:54,486 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2018-10-27 01:06:54,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 01:06:54,486 INFO L225 Difference]: With dead ends: 110 [2018-10-27 01:06:54,487 INFO L226 Difference]: Without dead ends: 78 [2018-10-27 01:06:54,487 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-27 01:06:54,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-10-27 01:06:54,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-10-27 01:06:54,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-10-27 01:06:54,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 84 transitions. [2018-10-27 01:06:54,499 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 84 transitions. Word has length 120 [2018-10-27 01:06:54,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 01:06:54,500 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 84 transitions. [2018-10-27 01:06:54,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 01:06:54,500 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 84 transitions. [2018-10-27 01:06:54,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-27 01:06:54,501 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:06:54,501 INFO L375 BasicCegarLoop]: trace histogram [18, 15, 15, 9, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 01:06:54,502 INFO L424 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:06:54,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:06:54,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1138840610, now seen corresponding path program 6 times [2018-10-27 01:06:54,505 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 01:06:54,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:54,506 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 01:06:54,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:06:54,506 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 01:06:54,522 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-27 01:06:54,522 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-27 01:06:54,522 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-27 01:06:54,533 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 01:06:54,534 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-27 01:06:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 01:06:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 01:06:54,771 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 01:06:54,796 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,807 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,809 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,810 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,811 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,811 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,815 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,816 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,816 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,816 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,819 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,820 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,820 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,820 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,820 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,821 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,821 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,821 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,822 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,822 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,827 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,827 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,827 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,828 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,828 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,828 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,829 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,829 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,829 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,829 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,830 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,833 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,834 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,834 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,834 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,834 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,835 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,835 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,835 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,835 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,836 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,836 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,836 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,836 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,844 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,845 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,845 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,845 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,846 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,848 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,848 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,848 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:06:54 BoogieIcfgContainer [2018-10-27 01:06:54,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 01:06:54,891 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 01:06:54,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 01:06:54,891 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 01:06:54,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:06:38" (3/4) ... [2018-10-27 01:06:54,896 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-27 01:06:54,900 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,901 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,904 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,905 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,905 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,905 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,908 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,908 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,908 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,908 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,914 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,914 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,914 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,915 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,915 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,915 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,915 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,916 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,916 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,916 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,916 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,917 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,917 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,917 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,917 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,917 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,918 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,918 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,924 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,924 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,924 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,924 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,925 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,925 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,925 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,925 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,925 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,926 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,926 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,926 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,926 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,927 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,927 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,927 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,935 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,937 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,937 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:54,937 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 01:06:55,049 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_65c77639-af1e-4603-aa64-f56256cb8cf1/bin-2019/utaipan/witness.graphml [2018-10-27 01:06:55,049 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 01:06:55,050 INFO L168 Benchmark]: Toolchain (without parser) took 17738.71 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 364.9 MB). Free memory was 962.3 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 179.5 MB. Max. memory is 11.5 GB. [2018-10-27 01:06:55,051 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 01:06:55,051 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.44 ms. Allocated memory is still 1.0 GB. Free memory was 962.3 MB in the beginning and 951.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 01:06:55,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.61 ms. Allocated memory is still 1.0 GB. Free memory was 951.6 MB in the beginning and 946.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 01:06:55,052 INFO L168 Benchmark]: Boogie Preprocessor took 32.47 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 01:06:55,052 INFO L168 Benchmark]: RCFGBuilder took 723.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-10-27 01:06:55,053 INFO L168 Benchmark]: TraceAbstraction took 16530.81 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 214.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -29.3 MB). Peak memory consumption was 185.1 MB. Max. memory is 11.5 GB. [2018-10-27 01:06:55,053 INFO L168 Benchmark]: Witness Printer took 158.13 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. [2018-10-27 01:06:55,060 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 242.44 ms. Allocated memory is still 1.0 GB. Free memory was 962.3 MB in the beginning and 951.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.61 ms. Allocated memory is still 1.0 GB. Free memory was 951.6 MB in the beginning and 946.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.47 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 723.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16530.81 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 214.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -29.3 MB). Peak memory consumption was 185.1 MB. Max. memory is 11.5 GB. * Witness Printer took 158.13 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 50]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L31] CALL int x[5]; [L31] RET int x[5]; [L32] CALL init_nondet(x) [L5] int i; [L6] i = 0 [L6] COND TRUE i < 5 [L7] CALL x[i] = __VERIFIER_nondet_int() [L7] RET x[i] = __VERIFIER_nondet_int() [L6] i++ [L6] COND TRUE i < 5 [L7] CALL x[i] = __VERIFIER_nondet_int() [L7] RET x[i] = __VERIFIER_nondet_int() [L6] i++ [L6] COND TRUE i < 5 [L7] CALL x[i] = __VERIFIER_nondet_int() [L7] RET x[i] = __VERIFIER_nondet_int() [L6] i++ [L6] COND TRUE i < 5 [L7] CALL x[i] = __VERIFIER_nondet_int() [L7] RET x[i] = __VERIFIER_nondet_int() [L6] i++ [L6] COND TRUE i < 5 [L7] CALL x[i] = __VERIFIER_nondet_int() [L7] RET x[i] = __VERIFIER_nondet_int() [L6] i++ [L6] COND FALSE, RET !(i < 5) [L32] init_nondet(x) [L33] int temp; [L34] int ret; [L35] int ret2; [L36] int ret5; [L38] CALL, EXPR rangesum(x) [L13] int i; [L14] long long ret; [L15] ret = 0 [L16] int cnt = 0; [L17] i = 0 [L17] COND TRUE i < 5 [L18] COND FALSE !(i > 5/2) [L17] i++ [L17] COND TRUE i < 5 [L18] COND FALSE !(i > 5/2) [L17] i++ [L17] COND TRUE i < 5 [L18] COND FALSE !(i > 5/2) [L17] i++ [L17] COND TRUE i < 5 [L18] COND TRUE i > 5/2 [L19] CALL, EXPR x[i] [L19] RET, EXPR x[i] [L19] ret = ret + x[i] [L20] cnt = cnt + 1 [L17] i++ [L17] COND TRUE i < 5 [L18] COND TRUE i > 5/2 [L19] CALL, EXPR x[i] [L19] RET, EXPR x[i] [L19] ret = ret + x[i] [L20] cnt = cnt + 1 [L17] i++ [L17] COND FALSE !(i < 5) [L23] COND TRUE cnt !=0 [L24] RET return ret / cnt; [L38] EXPR rangesum(x) [L38] ret = rangesum(x) [L40] CALL, EXPR x[0] [L40] RET, EXPR x[0] [L40] temp=x[0] [L40] CALL, EXPR x[1] [L40] RET, EXPR x[1] [L40] CALL x[0] = x[1] [L40] RET x[0] = x[1] [L40] CALL x[1] = temp [L40] RET x[1] = temp [L41] CALL, EXPR rangesum(x) [L13] int i; [L14] long long ret; [L15] ret = 0 [L16] int cnt = 0; [L17] i = 0 [L17] COND TRUE i < 5 [L18] COND FALSE !(i > 5/2) [L17] i++ [L17] COND TRUE i < 5 [L18] COND FALSE !(i > 5/2) [L17] i++ [L17] COND TRUE i < 5 [L18] COND FALSE !(i > 5/2) [L17] i++ [L17] COND TRUE i < 5 [L18] COND TRUE i > 5/2 [L19] CALL, EXPR x[i] [L19] RET, EXPR x[i] [L19] ret = ret + x[i] [L20] cnt = cnt + 1 [L17] i++ [L17] COND TRUE i < 5 [L18] COND TRUE i > 5/2 [L19] CALL, EXPR x[i] [L19] RET, EXPR x[i] [L19] ret = ret + x[i] [L20] cnt = cnt + 1 [L17] i++ [L17] COND FALSE !(i < 5) [L23] COND TRUE cnt !=0 [L24] RET return ret / cnt; [L41] EXPR rangesum(x) [L41] ret2 = rangesum(x) [L42] CALL, EXPR x[0] [L42] RET, EXPR x[0] [L42] temp=x[0] [L43] int i =0 ; [L43] COND TRUE i<5 -1 [L44] CALL, EXPR x[i+1] [L44] RET, EXPR x[i+1] [L44] CALL x[i] = x[i+1] [L44] RET x[i] = x[i+1] [L43] i++ [L43] COND TRUE i<5 -1 [L44] CALL, EXPR x[i+1] [L44] RET, EXPR x[i+1] [L44] CALL x[i] = x[i+1] [L44] RET x[i] = x[i+1] [L43] i++ [L43] COND TRUE i<5 -1 [L44] CALL, EXPR x[i+1] [L44] RET, EXPR x[i+1] [L44] CALL x[i] = x[i+1] [L44] RET x[i] = x[i+1] [L43] i++ [L43] COND TRUE i<5 -1 [L44] CALL, EXPR x[i+1] [L44] RET, EXPR x[i+1] [L44] CALL x[i] = x[i+1] [L44] RET x[i] = x[i+1] [L43] i++ [L43] COND FALSE !(i<5 -1) [L46] CALL x[5 -1] = temp [L46] RET x[5 -1] = temp [L47] CALL, EXPR rangesum(x) [L13] int i; [L14] long long ret; [L15] ret = 0 [L16] int cnt = 0; [L17] i = 0 [L17] COND TRUE i < 5 [L18] COND FALSE !(i > 5/2) [L17] i++ [L17] COND TRUE i < 5 [L18] COND FALSE !(i > 5/2) [L17] i++ [L17] COND TRUE i < 5 [L18] COND FALSE !(i > 5/2) [L17] i++ [L17] COND TRUE i < 5 [L18] COND TRUE i > 5/2 [L19] CALL, EXPR x[i] [L19] RET, EXPR x[i] [L19] ret = ret + x[i] [L20] cnt = cnt + 1 [L17] i++ [L17] COND TRUE i < 5 [L18] COND TRUE i > 5/2 [L19] CALL, EXPR x[i] [L19] RET, EXPR x[i] [L19] ret = ret + x[i] [L20] cnt = cnt + 1 [L17] i++ [L17] COND FALSE !(i < 5) [L23] COND TRUE cnt !=0 [L24] RET return ret / cnt; [L47] EXPR rangesum(x) [L47] ret5 = rangesum(x) [L49] COND TRUE ret != ret2 || ret !=ret5 [L50] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 40 locations, 1 error locations. UNSAFE Result, 16.4s OverallTime, 11 OverallIterations, 18 TraceHistogramMax, 8.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 327 SDtfs, 196 SDslu, 996 SDs, 0 SdLazy, 98 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1183 GetRequests, 1102 SyntacticMatches, 9 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.4s AbstIntTime, 6 AbstIntIterations, 5 AbstIntStrong, 0.9726047715521402 AbsIntWeakeningRatio, 1.6408163265306122 AbsIntAvgWeakeningVarsNumRemoved, 42.74285714285714 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1303 NumberOfCodeBlocks, 1200 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 914 ConstructedInterpolants, 0 QuantifiedInterpolants, 100034 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1443 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 10 InterpolantComputations, 0 PerfectInterpolantSequences, 2486/2664 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...