./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-multidimensional/init-4-n-u_true-unreach-call.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_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/init-4-n-u_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/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 6aa654f59c3ddb2b08c0b774490e920531ddf000 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 20:02:40,841 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:02:40,843 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:02:40,854 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:02:40,855 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:02:40,856 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:02:40,857 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:02:40,858 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:02:40,859 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:02:40,859 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:02:40,860 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:02:40,860 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:02:40,861 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:02:40,865 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:02:40,871 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:02:40,872 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:02:40,873 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:02:40,874 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:02:40,875 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:02:40,876 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:02:40,876 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:02:40,877 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:02:40,882 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:02:40,882 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:02:40,883 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:02:40,883 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:02:40,884 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:02:40,884 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:02:40,885 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:02:40,888 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:02:40,889 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:02:40,889 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:02:40,891 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:02:40,891 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:02:40,891 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:02:40,892 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:02:40,892 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 20:02:40,905 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:02:40,908 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:02:40,909 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:02:40,909 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 20:02:40,909 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 20:02:40,910 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 20:02:40,910 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 20:02:40,910 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 20:02:40,911 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 20:02:40,911 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 20:02:40,911 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 20:02:40,912 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:02:40,913 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:02:40,913 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 20:02:40,913 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:02:40,913 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:02:40,913 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:02:40,913 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:02:40,914 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:02:40,914 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:02:40,914 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:02:40,914 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:02:40,914 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:02:40,914 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 20:02:40,914 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:02:40,914 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 20:02:40,915 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 20:02:40,915 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:02:40,917 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:02:40,917 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:02:40,917 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 20:02:40,917 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:02:40,918 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 20:02:40,918 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 20:02:40,918 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_61e83261-eec5-4586-89ee-7cbacf99ca67/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 -> 6aa654f59c3ddb2b08c0b774490e920531ddf000 [2018-10-26 20:02:40,959 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:02:40,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:02:40,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:02:40,975 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:02:40,975 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:02:40,976 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/../../sv-benchmarks/c/array-multidimensional/init-4-n-u_true-unreach-call.i [2018-10-26 20:02:41,023 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/data/3cc5fab33/fd43095e61ab4d789e7af3180ec298e1/FLAG39451b4e0 [2018-10-26 20:02:41,410 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:02:41,412 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/sv-benchmarks/c/array-multidimensional/init-4-n-u_true-unreach-call.i [2018-10-26 20:02:41,418 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/data/3cc5fab33/fd43095e61ab4d789e7af3180ec298e1/FLAG39451b4e0 [2018-10-26 20:02:41,432 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/data/3cc5fab33/fd43095e61ab4d789e7af3180ec298e1 [2018-10-26 20:02:41,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:02:41,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 20:02:41,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:02:41,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:02:41,444 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:02:41,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:02:41" (1/1) ... [2018-10-26 20:02:41,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7472b554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:02:41, skipping insertion in model container [2018-10-26 20:02:41,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:02:41" (1/1) ... [2018-10-26 20:02:41,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:02:41,479 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:02:41,636 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:02:41,640 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:02:41,665 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:02:41,684 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:02:41,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:02:41 WrapperNode [2018-10-26 20:02:41,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:02:41,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 20:02:41,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 20:02:41,685 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 20:02:41,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:02:41" (1/1) ... [2018-10-26 20:02:41,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:02:41" (1/1) ... [2018-10-26 20:02:41,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 20:02:41,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:02:41,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:02:41,723 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:02:41,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:02:41" (1/1) ... [2018-10-26 20:02:41,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:02:41" (1/1) ... [2018-10-26 20:02:41,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:02:41" (1/1) ... [2018-10-26 20:02:41,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:02:41" (1/1) ... [2018-10-26 20:02:41,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:02:41" (1/1) ... [2018-10-26 20:02:41,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:02:41" (1/1) ... [2018-10-26 20:02:41,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:02:41" (1/1) ... [2018-10-26 20:02:41,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:02:41,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:02:41,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:02:41,747 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:02:41,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:02:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/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 [2018-10-26 20:02:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 20:02:41,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 20:02:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:02:41,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:02:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 20:02:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 20:02:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 20:02:41,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 20:02:42,282 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:02:42,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:02:42 BoogieIcfgContainer [2018-10-26 20:02:42,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:02:42,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 20:02:42,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 20:02:42,286 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 20:02:42,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:02:41" (1/3) ... [2018-10-26 20:02:42,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9722af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:02:42, skipping insertion in model container [2018-10-26 20:02:42,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:02:41" (2/3) ... [2018-10-26 20:02:42,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9722af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:02:42, skipping insertion in model container [2018-10-26 20:02:42,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:02:42" (3/3) ... [2018-10-26 20:02:42,289 INFO L112 eAbstractionObserver]: Analyzing ICFG init-4-n-u_true-unreach-call.i [2018-10-26 20:02:42,297 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 20:02:42,304 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 20:02:42,318 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 20:02:42,344 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 20:02:42,344 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 20:02:42,345 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 20:02:42,345 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 20:02:42,345 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 20:02:42,345 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 20:02:42,345 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 20:02:42,345 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 20:02:42,360 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-10-26 20:02:42,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 20:02:42,366 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:02:42,366 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:02:42,368 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:02:42,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:02:42,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1911485235, now seen corresponding path program 1 times [2018-10-26 20:02:42,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:02:42,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:02:42,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:02:42,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:02:42,418 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:02:42,447 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 20:02:42,447 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 20:02:42,447 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-26 20:02:42,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:02:42,456 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-26 20:02:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:02:42,505 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-10-26 20:02:42,506 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-26 20:02:42,507 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 20:02:42,507 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 20:02:42,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:02:42,514 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-26 20:02:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:02:42,555 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:02:42,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:02:42,577 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 20:02:42,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:02:42,644 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:02:42,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-10-26 20:02:42,645 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 20:02:42,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 20:02:42,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 20:02:42,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 20:02:42,659 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-10-26 20:02:42,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:02:42,679 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-10-26 20:02:42,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 20:02:42,680 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-10-26 20:02:42,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:02:42,688 INFO L225 Difference]: With dead ends: 78 [2018-10-26 20:02:42,688 INFO L226 Difference]: Without dead ends: 37 [2018-10-26 20:02:42,691 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 20:02:42,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-10-26 20:02:42,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-10-26 20:02:42,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-26 20:02:42,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-10-26 20:02:42,724 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 20 [2018-10-26 20:02:42,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:02:42,724 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-10-26 20:02:42,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 20:02:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-10-26 20:02:42,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 20:02:42,726 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:02:42,726 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:02:42,726 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:02:42,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:02:42,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1207347132, now seen corresponding path program 1 times [2018-10-26 20:02:42,727 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:02:42,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:02:42,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:02:42,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:02:42,728 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:02:42,735 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 20:02:42,735 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 20:02:42,735 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-26 20:02:42,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:02:42,745 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 [2018-10-26 20:02:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:02:42,796 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-10-26 20:02:42,797 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-26 20:02:42,797 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 20:02:42,797 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-10-26 20:02:42,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:02:42,805 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 20:02:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:02:42,840 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:02:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:02:42,911 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 20:02:42,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:02:43,017 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:02:43,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-10-26 20:02:43,017 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 20:02:43,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 20:02:43,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 20:02:43,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:02:43,019 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 3 states. [2018-10-26 20:02:43,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:02:43,174 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2018-10-26 20:02:43,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 20:02:43,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-10-26 20:02:43,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:02:43,178 INFO L225 Difference]: With dead ends: 68 [2018-10-26 20:02:43,178 INFO L226 Difference]: Without dead ends: 48 [2018-10-26 20:02:43,179 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:02:43,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-10-26 20:02:43,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 39. [2018-10-26 20:02:43,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-26 20:02:43,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2018-10-26 20:02:43,189 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 21 [2018-10-26 20:02:43,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:02:43,190 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2018-10-26 20:02:43,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 20:02:43,190 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2018-10-26 20:02:43,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 20:02:43,190 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:02:43,191 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 20:02:43,191 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:02:43,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:02:43,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1010001099, now seen corresponding path program 1 times [2018-10-26 20:02:43,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:02:43,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:02:43,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:02:43,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:02:43,192 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:02:43,204 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 20:02:43,205 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 20:02:43,205 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/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 [2018-10-26 20:02:43,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:02:43,216 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-26 20:02:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:02:43,252 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 27 with the following transitions: [2018-10-26 20:02:43,254 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [23], [57], [61], [65], [71], [75], [81], [85], [91], [95], [101], [121], [124], [126], [132], [133], [134], [136] [2018-10-26 20:02:43,292 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 20:02:43,292 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 20:02:43,484 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 20:02:43,485 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 32 variables. [2018-10-26 20:02:43,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:02:43,519 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 20:02:43,652 INFO L227 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 74.75% of their original sizes. [2018-10-26 20:02:43,652 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 20:02:43,760 INFO L415 sIntCurrentIteration]: We unified 25 AI predicates to 25 [2018-10-26 20:02:43,761 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 20:02:43,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:02:43,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 20:02:43,762 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 20:02:43,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 20:02:43,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 20:02:43,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:02:43,763 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand 4 states. [2018-10-26 20:02:44,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:02:44,371 INFO L93 Difference]: Finished difference Result 87 states and 107 transitions. [2018-10-26 20:02:44,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 20:02:44,371 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-10-26 20:02:44,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:02:44,372 INFO L225 Difference]: With dead ends: 87 [2018-10-26 20:02:44,372 INFO L226 Difference]: Without dead ends: 56 [2018-10-26 20:02:44,373 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:02:44,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-10-26 20:02:44,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2018-10-26 20:02:44,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-10-26 20:02:44,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2018-10-26 20:02:44,396 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 26 [2018-10-26 20:02:44,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:02:44,396 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2018-10-26 20:02:44,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 20:02:44,396 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2018-10-26 20:02:44,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 20:02:44,398 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:02:44,401 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:02:44,402 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:02:44,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:02:44,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1077297772, now seen corresponding path program 1 times [2018-10-26 20:02:44,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:02:44,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:02:44,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:02:44,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:02:44,403 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:02:44,412 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 20:02:44,413 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 20:02:44,413 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-26 20:02:44,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:02:44,426 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-26 20:02:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:02:44,467 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 32 with the following transitions: [2018-10-26 20:02:44,467 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [23], [25], [29], [33], [53], [57], [61], [65], [71], [75], [81], [85], [91], [95], [101], [121], [124], [126], [132], [133], [134], [136] [2018-10-26 20:02:44,469 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 20:02:44,469 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 20:02:44,508 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 20:02:44,509 INFO L272 AbstractInterpreter]: Visited 14 different actions 14 times. Never merged. Never widened. Never found a fixpoint. Largest state had 32 variables. [2018-10-26 20:02:44,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:02:44,526 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 20:02:44,649 INFO L227 lantSequenceWeakener]: Weakened 15 states. On average, predicates are now at 67.41% of their original sizes. [2018-10-26 20:02:44,650 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 20:02:44,826 INFO L415 sIntCurrentIteration]: We unified 30 AI predicates to 30 [2018-10-26 20:02:44,826 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 20:02:44,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:02:44,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 20:02:44,827 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 20:02:44,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 20:02:44,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 20:02:44,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 20:02:44,828 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand 5 states. [2018-10-26 20:02:45,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:02:45,699 INFO L93 Difference]: Finished difference Result 100 states and 120 transitions. [2018-10-26 20:02:45,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 20:02:45,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-10-26 20:02:45,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:02:45,700 INFO L225 Difference]: With dead ends: 100 [2018-10-26 20:02:45,700 INFO L226 Difference]: Without dead ends: 61 [2018-10-26 20:02:45,700 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 20:02:45,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-10-26 20:02:45,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 51. [2018-10-26 20:02:45,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-10-26 20:02:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2018-10-26 20:02:45,717 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 31 [2018-10-26 20:02:45,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:02:45,718 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2018-10-26 20:02:45,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 20:02:45,718 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2018-10-26 20:02:45,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-26 20:02:45,719 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:02:45,719 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:02:45,719 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:02:45,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:02:45,720 INFO L82 PathProgramCache]: Analyzing trace with hash 843638117, now seen corresponding path program 1 times [2018-10-26 20:02:45,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:02:45,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:02:45,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:02:45,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:02:45,721 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:02:45,727 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 20:02:45,728 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 20:02:45,728 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-26 20:02:45,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:02:45,734 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-26 20:02:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:02:45,786 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 37 with the following transitions: [2018-10-26 20:02:45,787 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [23], [25], [29], [33], [35], [39], [43], [49], [53], [57], [61], [65], [71], [75], [81], [85], [91], [95], [101], [121], [124], [126], [132], [133], [134], [136] [2018-10-26 20:02:45,788 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 20:02:45,788 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 20:02:45,838 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 20:02:45,838 INFO L272 AbstractInterpreter]: Visited 17 different actions 17 times. Never merged. Never widened. Never found a fixpoint. Largest state had 32 variables. [2018-10-26 20:02:45,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:02:45,878 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 20:02:45,992 INFO L227 lantSequenceWeakener]: Weakened 19 states. On average, predicates are now at 61.99% of their original sizes. [2018-10-26 20:02:45,992 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 20:02:46,229 INFO L415 sIntCurrentIteration]: We unified 35 AI predicates to 35 [2018-10-26 20:02:46,229 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 20:02:46,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:02:46,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 20:02:46,230 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 20:02:46,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 20:02:46,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 20:02:46,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-26 20:02:46,231 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand 6 states. [2018-10-26 20:02:46,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:02:46,340 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2018-10-26 20:02:46,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 20:02:46,340 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2018-10-26 20:02:46,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:02:46,340 INFO L225 Difference]: With dead ends: 53 [2018-10-26 20:02:46,341 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 20:02:46,341 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-26 20:02:46,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 20:02:46,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 20:02:46,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 20:02:46,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 20:02:46,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-10-26 20:02:46,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:02:46,343 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 20:02:46,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 20:02:46,343 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 20:02:46,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 20:02:46,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 20:02:46,648 WARN L179 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 367 [2018-10-26 20:02:46,799 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2018-10-26 20:02:47,095 WARN L179 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 366 [2018-10-26 20:02:47,387 WARN L179 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 367 [2018-10-26 20:02:49,046 WARN L179 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 367 DAG size of output: 47 [2018-10-26 20:02:49,714 WARN L179 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 47 [2018-10-26 20:02:50,911 WARN L179 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 365 DAG size of output: 47 [2018-10-26 20:02:51,550 WARN L179 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 47 [2018-10-26 20:02:51,552 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 20:02:51,552 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 20:02:51,552 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:02:51,552 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:02:51,552 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 20:02:51,552 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 20:02:51,552 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 20:02:51,553 INFO L421 ceAbstractionStarter]: At program point L60(line 60) the Hoare annotation is: false [2018-10-26 20:02:51,553 INFO L425 ceAbstractionStarter]: For program point L60-1(line 60) no Hoare annotation was computed. [2018-10-26 20:02:51,553 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 72) no Hoare annotation was computed. [2018-10-26 20:02:51,553 INFO L425 ceAbstractionStarter]: For program point L29-1(lines 29 41) no Hoare annotation was computed. [2018-10-26 20:02:51,553 INFO L421 ceAbstractionStarter]: At program point L29-3(lines 29 41) the Hoare annotation is: (and (<= main_~p~0 (+ main_~n~0 300)) (<= (+ main_~m~0 main_~q~0) 3000) (<= main_~C~0 (+ main_~p~0 2147481847)) (<= main_~i~0 (+ main_~C~0 2147483648)) (<= 0 (* 2 |main_~#A~0.offset|)) (<= main_~n~0 (+ main_~j~0 1500)) (<= 0 (+ main_~k~0 main_~l~0)) (<= 3800 (+ main_~p~0 main_~q~0)) (<= (+ main_~i~0 |main_~#A~0.offset|) 0) (not (= |main_~#A~0.base| 0)) (<= (+ main_~j~0 main_~l~0) 0) (<= (+ main_~j~0 main_~k~0) 0) (<= 1000 (+ main_~i~0 main_~m~0))) [2018-10-26 20:02:51,553 INFO L425 ceAbstractionStarter]: For program point L29-4(lines 29 41) no Hoare annotation was computed. [2018-10-26 20:02:51,553 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 54 66) no Hoare annotation was computed. [2018-10-26 20:02:51,553 INFO L421 ceAbstractionStarter]: At program point L54-3(lines 54 66) the Hoare annotation is: false [2018-10-26 20:02:51,553 INFO L425 ceAbstractionStarter]: For program point L54-4(lines 54 66) no Hoare annotation was computed. [2018-10-26 20:02:51,554 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 72) no Hoare annotation was computed. [2018-10-26 20:02:51,554 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 72) the Hoare annotation is: true [2018-10-26 20:02:51,554 INFO L425 ceAbstractionStarter]: For program point L32-1(lines 32 39) no Hoare annotation was computed. [2018-10-26 20:02:51,554 INFO L421 ceAbstractionStarter]: At program point L32-3(lines 32 39) the Hoare annotation is: (and (<= main_~p~0 (+ main_~n~0 300)) (<= (+ main_~m~0 main_~q~0) 3000) (<= main_~C~0 (+ main_~p~0 2147481847)) (<= main_~i~0 (+ main_~C~0 2147483648)) (<= 0 (* 2 |main_~#A~0.offset|)) (<= main_~n~0 (+ main_~j~0 1500)) (<= 0 (+ main_~k~0 main_~l~0)) (<= 3800 (+ main_~p~0 main_~q~0)) (<= (+ main_~i~0 |main_~#A~0.offset|) 0) (not (= |main_~#A~0.base| 0)) (<= (+ main_~j~0 main_~l~0) 0) (<= (+ main_~j~0 main_~k~0) 0) (<= 1000 (+ main_~i~0 main_~m~0))) [2018-10-26 20:02:51,554 INFO L425 ceAbstractionStarter]: For program point L32-4(lines 32 39) no Hoare annotation was computed. [2018-10-26 20:02:51,554 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 57 64) no Hoare annotation was computed. [2018-10-26 20:02:51,554 INFO L421 ceAbstractionStarter]: At program point L57-3(lines 57 64) the Hoare annotation is: false [2018-10-26 20:02:51,554 INFO L425 ceAbstractionStarter]: For program point L57-4(lines 57 64) no Hoare annotation was computed. [2018-10-26 20:02:51,554 INFO L425 ceAbstractionStarter]: For program point L25-1(lines 25 43) no Hoare annotation was computed. [2018-10-26 20:02:51,555 INFO L421 ceAbstractionStarter]: At program point L25-3(lines 25 43) the Hoare annotation is: (and (<= main_~p~0 (+ main_~n~0 300)) (<= (+ main_~m~0 main_~q~0) 3000) (<= main_~C~0 (+ main_~p~0 2147481847)) (<= main_~i~0 (+ main_~C~0 2147483648)) (<= 0 (* 2 |main_~#A~0.offset|)) (<= main_~n~0 (+ main_~j~0 1500)) (<= 0 (+ main_~k~0 main_~l~0)) (<= 3800 (+ main_~p~0 main_~q~0)) (<= (+ main_~i~0 |main_~#A~0.offset|) 0) (not (= |main_~#A~0.base| 0)) (<= (+ main_~j~0 main_~l~0) 0) (<= (+ main_~j~0 main_~k~0) 0) (<= 1000 (+ main_~i~0 main_~m~0))) [2018-10-26 20:02:51,555 INFO L425 ceAbstractionStarter]: For program point L25-4(lines 25 43) no Hoare annotation was computed. [2018-10-26 20:02:51,555 INFO L425 ceAbstractionStarter]: For program point L50-1(lines 50 68) no Hoare annotation was computed. [2018-10-26 20:02:51,555 INFO L421 ceAbstractionStarter]: At program point L50-3(lines 50 68) the Hoare annotation is: false [2018-10-26 20:02:51,555 INFO L425 ceAbstractionStarter]: For program point L50-4(lines 50 68) no Hoare annotation was computed. [2018-10-26 20:02:51,555 INFO L425 ceAbstractionStarter]: For program point L34-1(lines 34 37) no Hoare annotation was computed. [2018-10-26 20:02:51,555 INFO L421 ceAbstractionStarter]: At program point L34-3(lines 34 37) the Hoare annotation is: (and (<= main_~p~0 (+ main_~n~0 300)) (<= (+ main_~m~0 main_~q~0) 3000) (<= main_~C~0 (+ main_~p~0 2147481847)) (<= main_~i~0 (+ main_~C~0 2147483648)) (<= 0 (* 2 |main_~#A~0.offset|)) (<= main_~n~0 (+ main_~j~0 1500)) (<= 0 (+ main_~k~0 main_~l~0)) (<= 3800 (+ main_~p~0 main_~q~0)) (<= (+ main_~i~0 |main_~#A~0.offset|) 0) (not (= |main_~#A~0.base| 0)) (<= (+ main_~j~0 main_~l~0) 0) (<= (+ main_~j~0 main_~k~0) 0) (<= 1000 (+ main_~i~0 main_~m~0))) [2018-10-26 20:02:51,555 INFO L425 ceAbstractionStarter]: For program point L34-4(lines 34 37) no Hoare annotation was computed. [2018-10-26 20:02:51,556 INFO L425 ceAbstractionStarter]: For program point L59-1(lines 59 62) no Hoare annotation was computed. [2018-10-26 20:02:51,556 INFO L421 ceAbstractionStarter]: At program point L59-3(lines 59 62) the Hoare annotation is: false [2018-10-26 20:02:51,556 INFO L425 ceAbstractionStarter]: For program point L59-4(lines 59 62) no Hoare annotation was computed. [2018-10-26 20:02:51,556 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-26 20:02:51,556 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-26 20:02:51,556 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-26 20:02:51,556 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-26 20:02:51,556 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-26 20:02:51,556 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-26 20:02:51,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:02:51 BoogieIcfgContainer [2018-10-26 20:02:51,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 20:02:51,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:02:51,580 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:02:51,580 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:02:51,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:02:42" (3/4) ... [2018-10-26 20:02:51,585 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 20:02:51,592 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 20:02:51,593 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 20:02:51,593 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 20:02:51,597 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-10-26 20:02:51,597 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-26 20:02:51,597 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 20:02:51,651 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_61e83261-eec5-4586-89ee-7cbacf99ca67/bin-2019/utaipan/witness.graphml [2018-10-26 20:02:51,651 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:02:51,652 INFO L168 Benchmark]: Toolchain (without parser) took 10216.00 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 435.7 MB). Free memory was 962.5 MB in the beginning and 1.3 GB in the end (delta: -331.2 MB). Peak memory consumption was 104.5 MB. Max. memory is 11.5 GB. [2018-10-26 20:02:51,652 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:02:51,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.16 ms. Allocated memory is still 1.0 GB. Free memory was 962.5 MB in the beginning and 951.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:02:51,653 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.44 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:02:51,653 INFO L168 Benchmark]: Boogie Preprocessor took 24.09 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:02:51,654 INFO L168 Benchmark]: RCFGBuilder took 535.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.5 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -217.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-10-26 20:02:51,654 INFO L168 Benchmark]: TraceAbstraction took 9296.02 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 251.1 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -148.1 MB). Peak memory consumption was 475.3 MB. Max. memory is 11.5 GB. [2018-10-26 20:02:51,654 INFO L168 Benchmark]: Witness Printer took 71.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2018-10-26 20:02:51,657 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 247.16 ms. Allocated memory is still 1.0 GB. Free memory was 962.5 MB in the beginning and 951.8 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 37.44 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.09 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 535.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.5 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -217.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9296.02 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 251.1 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -148.1 MB). Peak memory consumption was 475.3 MB. Max. memory is 11.5 GB. * Witness Printer took 71.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((((((((((p <= n + 300 && m + q <= 3000) && C <= p + 2147481847) && i <= C + 2147483648) && 0 <= 2 * A) && n <= j + 1500) && 0 <= k + l) && 3800 <= p + q) && i + A <= 0) && !(A == 0)) && j + l <= 0) && j + k <= 0) && 1000 <= i + m - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((p <= n + 300 && m + q <= 3000) && C <= p + 2147481847) && i <= C + 2147483648) && 0 <= 2 * A) && n <= j + 1500) && 0 <= k + l) && 3800 <= p + q) && i + A <= 0) && !(A == 0)) && j + l <= 0) && j + k <= 0) && 1000 <= i + m - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((((((p <= n + 300 && m + q <= 3000) && C <= p + 2147481847) && i <= C + 2147483648) && 0 <= 2 * A) && n <= j + 1500) && 0 <= k + l) && 3800 <= p + q) && i + A <= 0) && !(A == 0)) && j + l <= 0) && j + k <= 0) && 1000 <= i + m - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((((((p <= n + 300 && m + q <= 3000) && C <= p + 2147481847) && i <= C + 2147483648) && 0 <= 2 * A) && n <= j + 1500) && 0 <= k + l) && 3800 <= p + q) && i + A <= 0) && !(A == 0)) && j + l <= 0) && j + k <= 0) && 1000 <= i + m - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. SAFE Result, 9.2s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 5.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 171 SDtfs, 76 SDslu, 119 SDs, 0 SdLazy, 24 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9718055555555555 AbsIntWeakeningRatio, 1.3222222222222222 AbsIntAvgWeakeningVarsNumRemoved, 113.32222222222222 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 26 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 18 PreInvPairs, 22 NumberOfFragments, 270 HoareAnnotationTreeSize, 18 FomulaSimplifications, 6694 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 3746 FormulaSimplificationTreeSizeReductionInter, 4.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 1842 SizeOfPredicates, 2 NumberOfNonLiveVariables, 221 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...