./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-multidimensional/max-3-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_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/max-3-n-u_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/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 95c4c0768a065bb180cfb0d8b6ffe24c3eec82e0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 05:24:58,890 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:24:58,891 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:24:58,899 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:24:58,899 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:24:58,899 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:24:58,900 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:24:58,901 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:24:58,902 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:24:58,903 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:24:58,904 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:24:58,904 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:24:58,904 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:24:58,905 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:24:58,906 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:24:58,906 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:24:58,907 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:24:58,908 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:24:58,909 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:24:58,910 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:24:58,911 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:24:58,912 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:24:58,914 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:24:58,914 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:24:58,914 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:24:58,915 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:24:58,915 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:24:58,916 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:24:58,916 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:24:58,917 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:24:58,917 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:24:58,918 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:24:58,918 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:24:58,918 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:24:58,918 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:24:58,919 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:24:58,919 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 05:24:58,929 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:24:58,929 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:24:58,930 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:24:58,930 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:24:58,930 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:24:58,930 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:24:58,930 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 05:24:58,930 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:24:58,930 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 05:24:58,930 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 05:24:58,931 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:24:58,931 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:24:58,931 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:24:58,931 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:24:58,931 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:24:58,931 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:24:58,932 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:24:58,932 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:24:58,932 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:24:58,932 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:24:58,932 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:24:58,932 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:24:58,932 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:24:58,933 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:24:58,933 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:24:58,933 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:24:58,933 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:24:58,933 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:24:58,933 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:24:58,933 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:24:58,933 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 05:24:58,933 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:24:58,933 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:24:58,933 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 05:24:58,933 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_2e116cb3-9c07-4972-aa5e-a2334c7482fa/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 -> 95c4c0768a065bb180cfb0d8b6ffe24c3eec82e0 [2018-11-10 05:24:58,954 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:24:58,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:24:58,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:24:58,965 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:24:58,966 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:24:58,966 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/../../sv-benchmarks/c/array-multidimensional/max-3-n-u_true-unreach-call.i [2018-11-10 05:24:59,003 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/data/2fe5f5f14/91a1b8f80bf34c5b90327f9680394b17/FLAG28dfc4280 [2018-11-10 05:24:59,337 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:24:59,337 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/sv-benchmarks/c/array-multidimensional/max-3-n-u_true-unreach-call.i [2018-11-10 05:24:59,344 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/data/2fe5f5f14/91a1b8f80bf34c5b90327f9680394b17/FLAG28dfc4280 [2018-11-10 05:24:59,354 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/data/2fe5f5f14/91a1b8f80bf34c5b90327f9680394b17 [2018-11-10 05:24:59,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:24:59,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:24:59,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:24:59,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:24:59,360 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:24:59,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:24:59" (1/1) ... [2018-11-10 05:24:59,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adf90f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:24:59, skipping insertion in model container [2018-11-10 05:24:59,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:24:59" (1/1) ... [2018-11-10 05:24:59,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:24:59,384 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:24:59,497 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:24:59,500 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:24:59,521 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:24:59,536 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:24:59,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:24:59 WrapperNode [2018-11-10 05:24:59,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:24:59,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:24:59,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:24:59,537 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:24:59,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:24:59" (1/1) ... [2018-11-10 05:24:59,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:24:59" (1/1) ... [2018-11-10 05:24:59,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:24:59,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:24:59,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:24:59,570 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:24:59,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:24:59" (1/1) ... [2018-11-10 05:24:59,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:24:59" (1/1) ... [2018-11-10 05:24:59,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:24:59" (1/1) ... [2018-11-10 05:24:59,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:24:59" (1/1) ... [2018-11-10 05:24:59,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:24:59" (1/1) ... [2018-11-10 05:24:59,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:24:59" (1/1) ... [2018-11-10 05:24:59,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:24:59" (1/1) ... [2018-11-10 05:24:59,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:24:59,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:24:59,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:24:59,626 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:24:59,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:24:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:24:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:24:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:24:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:24:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:24:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:24:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:24:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 05:24:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 05:24:59,871 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:24:59,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:24:59 BoogieIcfgContainer [2018-11-10 05:24:59,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:24:59,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:24:59,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:24:59,874 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:24:59,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:24:59" (1/3) ... [2018-11-10 05:24:59,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9fcf352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:24:59, skipping insertion in model container [2018-11-10 05:24:59,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:24:59" (2/3) ... [2018-11-10 05:24:59,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9fcf352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:24:59, skipping insertion in model container [2018-11-10 05:24:59,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:24:59" (3/3) ... [2018-11-10 05:24:59,877 INFO L112 eAbstractionObserver]: Analyzing ICFG max-3-n-u_true-unreach-call.i [2018-11-10 05:24:59,885 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:24:59,891 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:24:59,901 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:24:59,922 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:24:59,922 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:24:59,922 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:24:59,922 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:24:59,922 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:24:59,922 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:24:59,922 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:24:59,922 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:24:59,934 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-10 05:24:59,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 05:24:59,938 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:24:59,938 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] [2018-11-10 05:24:59,940 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:24:59,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:24:59,945 INFO L82 PathProgramCache]: Analyzing trace with hash -2100348556, now seen corresponding path program 1 times [2018-11-10 05:24:59,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:24:59,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:24:59,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:24:59,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:24:59,977 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:25:00,002 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 05:25:00,002 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 05:25:00,002 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/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 [2018-11-10 05:25:00,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:00,014 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 05:25:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:25:00,047 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-11-10 05:25:00,049 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-10 05:25:00,049 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 05:25:00,049 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 05:25:00,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:00,054 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 05:25:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:25:00,089 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:25:00,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:25:00,104 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 05:25:00,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:25:00,139 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:25:00,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-11-10 05:25:00,139 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:25:00,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 05:25:00,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 05:25:00,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:25:00,152 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-11-10 05:25:00,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:25:00,171 INFO L93 Difference]: Finished difference Result 88 states and 127 transitions. [2018-11-10 05:25:00,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 05:25:00,172 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-10 05:25:00,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:25:00,176 INFO L225 Difference]: With dead ends: 88 [2018-11-10 05:25:00,176 INFO L226 Difference]: Without dead ends: 42 [2018-11-10 05:25:00,178 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 [2018-11-10 05:25:00,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-10 05:25:00,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-10 05:25:00,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-10 05:25:00,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2018-11-10 05:25:00,202 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 20 [2018-11-10 05:25:00,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:25:00,202 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2018-11-10 05:25:00,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 05:25:00,202 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2018-11-10 05:25:00,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 05:25:00,203 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:25:00,203 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:25:00,203 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:25:00,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:25:00,204 INFO L82 PathProgramCache]: Analyzing trace with hash 520224929, now seen corresponding path program 1 times [2018-11-10 05:25:00,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:25:00,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:00,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:00,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:00,205 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:25:00,211 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 05:25:00,211 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 05:25:00,211 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 05:25:00,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:00,225 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 05:25:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:25:00,255 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-11-10 05:25:00,256 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-10 05:25:00,256 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 05:25:00,256 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 05:25:00,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:00,262 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 05:25:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:25:00,283 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:25:00,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:25:00,300 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 05:25:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:25:00,336 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:25:00,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-11-10 05:25:00,337 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:25:00,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:25:00,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:25:00,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 05:25:00,338 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 3 states. [2018-11-10 05:25:00,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:25:00,372 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2018-11-10 05:25:00,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:25:00,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-11-10 05:25:00,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:25:00,373 INFO L225 Difference]: With dead ends: 78 [2018-11-10 05:25:00,373 INFO L226 Difference]: Without dead ends: 50 [2018-11-10 05:25:00,374 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 05:25:00,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-10 05:25:00,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2018-11-10 05:25:00,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 05:25:00,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2018-11-10 05:25:00,379 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 22 [2018-11-10 05:25:00,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:25:00,380 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2018-11-10 05:25:00,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:25:00,380 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2018-11-10 05:25:00,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 05:25:00,380 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:25:00,380 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, 1] [2018-11-10 05:25:00,381 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:25:00,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:25:00,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1874083380, now seen corresponding path program 1 times [2018-11-10 05:25:00,381 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:25:00,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:00,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:00,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:00,382 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:25:00,386 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 05:25:00,386 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 05:25:00,386 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/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 [2018-11-10 05:25:00,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:00,395 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 05:25:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:25:00,417 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2018-11-10 05:25:00,418 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [23], [43], [47], [51], [55], [96], [100], [106], [110], [116], [120], [126], [142], [145], [147], [153], [154], [155], [157] [2018-11-10 05:25:00,452 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 05:25:00,452 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 05:25:00,574 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 05:25:00,575 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 30 variables. [2018-11-10 05:25:00,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:25:00,580 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 05:25:00,659 INFO L227 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 76.97% of their original sizes. [2018-11-10 05:25:00,659 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 05:25:00,688 INFO L415 sIntCurrentIteration]: We unified 26 AI predicates to 26 [2018-11-10 05:25:00,688 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 05:25:00,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:25:00,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 05:25:00,693 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:25:00,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 05:25:00,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 05:25:00,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 05:25:00,694 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 4 states. [2018-11-10 05:25:01,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:25:01,008 INFO L93 Difference]: Finished difference Result 104 states and 131 transitions. [2018-11-10 05:25:01,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 05:25:01,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-11-10 05:25:01,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:25:01,009 INFO L225 Difference]: With dead ends: 104 [2018-11-10 05:25:01,009 INFO L226 Difference]: Without dead ends: 68 [2018-11-10 05:25:01,009 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 05:25:01,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-11-10 05:25:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 60. [2018-11-10 05:25:01,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-10 05:25:01,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2018-11-10 05:25:01,021 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 27 [2018-11-10 05:25:01,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:25:01,022 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2018-11-10 05:25:01,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 05:25:01,022 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2018-11-10 05:25:01,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-10 05:25:01,023 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:25:01,023 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:25:01,023 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:25:01,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:25:01,024 INFO L82 PathProgramCache]: Analyzing trace with hash 532091905, now seen corresponding path program 1 times [2018-11-10 05:25:01,024 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:25:01,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:01,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:01,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:01,025 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:25:01,031 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 05:25:01,031 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 05:25:01,031 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 05:25:01,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:01,041 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 05:25:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:25:01,068 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-11-10 05:25:01,068 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [23], [25], [29], [33], [39], [43], [47], [51], [55], [57], [61], [65], [67], [71], [75], [88], [92], [96], [100], [106], [110], [116], [120], [126], [142], [145], [147], [153], [154], [155], [157] [2018-11-10 05:25:01,070 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 05:25:01,070 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 05:25:01,095 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 05:25:01,095 INFO L272 AbstractInterpreter]: Visited 14 different actions 14 times. Never merged. Never widened. Never found a fixpoint. Largest state had 30 variables. [2018-11-10 05:25:01,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:25:01,108 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 05:25:01,185 INFO L227 lantSequenceWeakener]: Weakened 15 states. On average, predicates are now at 69.78% of their original sizes. [2018-11-10 05:25:01,185 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 05:25:01,236 INFO L415 sIntCurrentIteration]: We unified 41 AI predicates to 41 [2018-11-10 05:25:01,236 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 05:25:01,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:25:01,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 05:25:01,237 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:25:01,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 05:25:01,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 05:25:01,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 05:25:01,238 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand 5 states. [2018-11-10 05:25:01,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:25:01,275 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2018-11-10 05:25:01,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:25:01,275 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2018-11-10 05:25:01,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:25:01,275 INFO L225 Difference]: With dead ends: 62 [2018-11-10 05:25:01,275 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 05:25:01,276 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 05:25:01,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 05:25:01,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 05:25:01,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 05:25:01,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 05:25:01,277 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2018-11-10 05:25:01,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:25:01,277 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:25:01,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 05:25:01,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 05:25:01,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 05:25:01,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 05:25:01,875 WARN L179 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 34 [2018-11-10 05:25:02,134 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 34 [2018-11-10 05:25:02,342 WARN L179 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 33 [2018-11-10 05:25:02,344 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:25:02,344 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:25:02,344 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:25:02,344 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:25:02,344 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 05:25:02,345 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:25:02,345 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:25:02,345 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 78) no Hoare annotation was computed. [2018-11-10 05:25:02,345 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 69 72) no Hoare annotation was computed. [2018-11-10 05:25:02,345 INFO L421 ceAbstractionStarter]: At program point L69-3(lines 69 72) the Hoare annotation is: false [2018-11-10 05:25:02,345 INFO L425 ceAbstractionStarter]: For program point L69-4(lines 69 72) no Hoare annotation was computed. [2018-11-10 05:25:02,345 INFO L425 ceAbstractionStarter]: For program point L28-1(lines 28 31) no Hoare annotation was computed. [2018-11-10 05:25:02,345 INFO L421 ceAbstractionStarter]: At program point L28-3(lines 28 31) the Hoare annotation is: (and (<= |main_~#A~0.offset| main_~k~0) (<= (* 2 main_~m~0) 2000) (<= 3300 (+ main_~n~0 main_~p~0)) (<= main_~p~0 (+ main_~n~0 300)) (<= (+ main_~i~0 |main_~#A~0.offset|) 0) (not (= |main_~#A~0.base| 0)) (<= (+ main_~j~0 main_~n~0) 1500) (<= 1000 (+ main_~i~0 main_~m~0)) (<= 0 (* 2 |main_~#A~0.offset|)) (<= main_~k~0 main_~j~0)) [2018-11-10 05:25:02,345 INFO L425 ceAbstractionStarter]: For program point L28-4(lines 28 31) no Hoare annotation was computed. [2018-11-10 05:25:02,345 INFO L421 ceAbstractionStarter]: At program point L70(line 70) the Hoare annotation is: false [2018-11-10 05:25:02,345 INFO L425 ceAbstractionStarter]: For program point L70-1(line 70) no Hoare annotation was computed. [2018-11-10 05:25:02,345 INFO L425 ceAbstractionStarter]: For program point L46-1(lines 46 54) no Hoare annotation was computed. [2018-11-10 05:25:02,345 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 78) no Hoare annotation was computed. [2018-11-10 05:25:02,346 INFO L421 ceAbstractionStarter]: At program point L46-3(lines 46 54) the Hoare annotation is: false [2018-11-10 05:25:02,346 INFO L425 ceAbstractionStarter]: For program point L46-4(lines 46 54) no Hoare annotation was computed. [2018-11-10 05:25:02,346 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 78) the Hoare annotation is: true [2018-11-10 05:25:02,346 INFO L425 ceAbstractionStarter]: For program point L64-1(lines 64 76) no Hoare annotation was computed. [2018-11-10 05:25:02,346 INFO L421 ceAbstractionStarter]: At program point L64-3(lines 64 76) the Hoare annotation is: false [2018-11-10 05:25:02,346 INFO L425 ceAbstractionStarter]: For program point L64-4(lines 64 76) no Hoare annotation was computed. [2018-11-10 05:25:02,346 INFO L425 ceAbstractionStarter]: For program point L23-1(lines 23 35) no Hoare annotation was computed. [2018-11-10 05:25:02,346 INFO L421 ceAbstractionStarter]: At program point L23-3(lines 23 35) the Hoare annotation is: (and (<= |main_~#A~0.offset| main_~k~0) (<= (* 2 main_~m~0) 2000) (<= 3300 (+ main_~n~0 main_~p~0)) (<= main_~p~0 (+ main_~n~0 300)) (not (= |main_~#A~0.base| 0)) (<= (+ main_~j~0 main_~n~0) 1500) (<= main_~i~0 0) (<= 1000 (+ main_~i~0 main_~m~0)) (<= 0 (* 2 |main_~#A~0.offset|)) (<= main_~k~0 main_~j~0)) [2018-11-10 05:25:02,346 INFO L425 ceAbstractionStarter]: For program point L23-4(lines 23 35) no Hoare annotation was computed. [2018-11-10 05:25:02,346 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2018-11-10 05:25:02,346 INFO L421 ceAbstractionStarter]: At program point L48-3(lines 48 52) the Hoare annotation is: false [2018-11-10 05:25:02,346 INFO L425 ceAbstractionStarter]: For program point L48-4(lines 48 52) no Hoare annotation was computed. [2018-11-10 05:25:02,346 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-11-10 05:25:02,346 INFO L425 ceAbstractionStarter]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2018-11-10 05:25:02,346 INFO L425 ceAbstractionStarter]: For program point L67-1(lines 67 74) no Hoare annotation was computed. [2018-11-10 05:25:02,346 INFO L421 ceAbstractionStarter]: At program point L67-3(lines 67 74) the Hoare annotation is: false [2018-11-10 05:25:02,347 INFO L425 ceAbstractionStarter]: For program point L67-4(lines 67 74) no Hoare annotation was computed. [2018-11-10 05:25:02,347 INFO L425 ceAbstractionStarter]: For program point L26-1(lines 26 33) no Hoare annotation was computed. [2018-11-10 05:25:02,347 INFO L421 ceAbstractionStarter]: At program point L26-3(lines 26 33) the Hoare annotation is: (and (<= |main_~#A~0.offset| main_~k~0) (<= (* 2 main_~m~0) 2000) (<= 3300 (+ main_~n~0 main_~p~0)) (<= main_~p~0 (+ main_~n~0 300)) (<= (+ main_~i~0 |main_~#A~0.offset|) 0) (not (= |main_~#A~0.base| 0)) (<= (+ main_~j~0 main_~n~0) 1500) (<= 1000 (+ main_~i~0 main_~m~0)) (<= 0 (* 2 |main_~#A~0.offset|)) (<= main_~k~0 main_~j~0)) [2018-11-10 05:25:02,347 INFO L425 ceAbstractionStarter]: For program point L26-4(lines 26 33) no Hoare annotation was computed. [2018-11-10 05:25:02,347 INFO L425 ceAbstractionStarter]: For program point L43-1(lines 43 56) no Hoare annotation was computed. [2018-11-10 05:25:02,347 INFO L421 ceAbstractionStarter]: At program point L43-3(lines 43 56) the Hoare annotation is: false [2018-11-10 05:25:02,347 INFO L425 ceAbstractionStarter]: For program point L43-4(lines 43 56) no Hoare annotation was computed. [2018-11-10 05:25:02,347 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-10 05:25:02,347 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-10 05:25:02,347 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-10 05:25:02,348 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-10 05:25:02,348 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-10 05:25:02,348 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-10 05:25:02,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:25:02 BoogieIcfgContainer [2018-11-10 05:25:02,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:25:02,359 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:25:02,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:25:02,359 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:25:02,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:24:59" (3/4) ... [2018-11-10 05:25:02,362 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 05:25:02,367 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 05:25:02,367 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 05:25:02,367 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 05:25:02,372 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-11-10 05:25:02,372 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-10 05:25:02,372 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 05:25:02,416 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2e116cb3-9c07-4972-aa5e-a2334c7482fa/bin-2019/utaipan/witness.graphml [2018-11-10 05:25:02,416 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:25:02,417 INFO L168 Benchmark]: Toolchain (without parser) took 3060.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 963.0 MB in the beginning and 1.0 GB in the end (delta: -53.5 MB). Peak memory consumption was 123.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:25:02,417 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:25:02,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.37 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:25:02,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.65 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:25:02,418 INFO L168 Benchmark]: Boogie Preprocessor took 55.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-11-10 05:25:02,418 INFO L168 Benchmark]: RCFGBuilder took 245.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:25:02,419 INFO L168 Benchmark]: TraceAbstraction took 2486.45 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 41.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.6 MB). Peak memory consumption was 246.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:25:02,419 INFO L168 Benchmark]: Witness Printer took 57.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 11.5 GB. [2018-11-10 05:25:02,421 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 179.37 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 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 32.65 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 245.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2486.45 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 41.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.6 MB). Peak memory consumption was 246.7 MB. Max. memory is 11.5 GB. * Witness Printer took 57.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 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: 46]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((((((((A <= k && 2 * m <= 2000) && 3300 <= n + p) && p <= n + 300) && i + A <= 0) && !(A == 0)) && j + n <= 1500) && 1000 <= i + m) && 0 <= 2 * A) && k <= j - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((((A <= k && 2 * m <= 2000) && 3300 <= n + p) && p <= n + 300) && i + A <= 0) && !(A == 0)) && j + n <= 1500) && 1000 <= i + m) && 0 <= 2 * A) && k <= j - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((((((A <= k && 2 * m <= 2000) && 3300 <= n + p) && p <= n + 300) && !(A == 0)) && j + n <= 1500) && i <= 0) && 1000 <= i + m) && 0 <= 2 * A) && k <= j - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 47 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 1.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 152 SDtfs, 42 SDslu, 77 SDs, 0 SdLazy, 25 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 149 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9776119402985073 AbsIntWeakeningRatio, 1.2537313432835822 AbsIntAvgWeakeningVarsNumRemoved, 57.850746268656714 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 148 HoareAnnotationTreeSize, 18 FomulaSimplifications, 631 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 15 FomulaSimplificationsInter, 1337 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 1940 SizeOfPredicates, 2 NumberOfNonLiveVariables, 220 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...