./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test24_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test24_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/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 043660dc5a969bbd34b12cbb93ba3e467b4f8613 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:14:19,768 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:14:19,769 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:14:19,777 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:14:19,777 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:14:19,777 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:14:19,778 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:14:19,779 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:14:19,780 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:14:19,781 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:14:19,781 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:14:19,782 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:14:19,783 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:14:19,784 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:14:19,784 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:14:19,785 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:14:19,785 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:14:19,787 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:14:19,789 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:14:19,790 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:14:19,791 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:14:19,792 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:14:19,793 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:14:19,793 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:14:19,794 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:14:19,795 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:14:19,796 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:14:19,796 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:14:19,797 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:14:19,797 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:14:19,798 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:14:19,799 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:14:19,799 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:14:19,799 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:14:19,800 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:14:19,800 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:14:19,800 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:14:19,810 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:14:19,811 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:14:19,811 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:14:19,812 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:14:19,812 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:14:19,812 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:14:19,812 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:14:19,812 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:14:19,812 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:14:19,812 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:14:19,813 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:14:19,813 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:14:19,813 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:14:19,813 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:14:19,813 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:14:19,813 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:14:19,814 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:14:19,814 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:14:19,815 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:14:19,815 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:14:19,815 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:14:19,816 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:14:19,816 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:14:19,816 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:14:19,816 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:14:19,816 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:14:19,816 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:14:19,816 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:14:19,816 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:14:19,816 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:14:19,816 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:14:19,817 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:14:19,817 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:14:19,817 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:14:19,817 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:14:19,817 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:14:19,817 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:14:19,817 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_cc0f9a2a-e876-4689-a16c-ff393220ff98/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 -> 043660dc5a969bbd34b12cbb93ba3e467b4f8613 [2018-11-18 15:14:19,845 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:14:19,854 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:14:19,855 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:14:19,856 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:14:19,857 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:14:19,857 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test24_true-unreach-call_true-termination.c [2018-11-18 15:14:19,893 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/bin-2019/utaipan/data/c8c1a1376/125ba81aba7347c98229433f954a6d8a/FLAG5e7278eb9 [2018-11-18 15:14:20,302 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:14:20,303 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/sv-benchmarks/c/ldv-regression/test24_true-unreach-call_true-termination.c [2018-11-18 15:14:20,307 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/bin-2019/utaipan/data/c8c1a1376/125ba81aba7347c98229433f954a6d8a/FLAG5e7278eb9 [2018-11-18 15:14:20,316 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/bin-2019/utaipan/data/c8c1a1376/125ba81aba7347c98229433f954a6d8a [2018-11-18 15:14:20,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:14:20,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:14:20,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:14:20,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:14:20,323 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:14:20,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:14:20" (1/1) ... [2018-11-18 15:14:20,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2cb16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:14:20, skipping insertion in model container [2018-11-18 15:14:20,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:14:20" (1/1) ... [2018-11-18 15:14:20,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:14:20,352 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:14:20,469 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:14:20,474 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:14:20,484 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:14:20,494 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:14:20,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:14:20 WrapperNode [2018-11-18 15:14:20,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:14:20,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:14:20,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:14:20,495 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:14:20,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:14:20" (1/1) ... [2018-11-18 15:14:20,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:14:20" (1/1) ... [2018-11-18 15:14:20,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:14:20,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:14:20,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:14:20,509 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:14:20,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:14:20" (1/1) ... [2018-11-18 15:14:20,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:14:20" (1/1) ... [2018-11-18 15:14:20,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:14:20" (1/1) ... [2018-11-18 15:14:20,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:14:20" (1/1) ... [2018-11-18 15:14:20,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:14:20" (1/1) ... [2018-11-18 15:14:20,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:14:20" (1/1) ... [2018-11-18 15:14:20,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:14:20" (1/1) ... [2018-11-18 15:14:20,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:14:20,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:14:20,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:14:20,564 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:14:20,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:14:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/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 [2018-11-18 15:14:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:14:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:14:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:14:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:14:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:14:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:14:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:14:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:14:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:14:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure check [2018-11-18 15:14:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2018-11-18 15:14:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:14:20,719 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:14:20,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:14:20 BoogieIcfgContainer [2018-11-18 15:14:20,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:14:20,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:14:20,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:14:20,722 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:14:20,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:14:20" (1/3) ... [2018-11-18 15:14:20,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b516b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:14:20, skipping insertion in model container [2018-11-18 15:14:20,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:14:20" (2/3) ... [2018-11-18 15:14:20,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b516b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:14:20, skipping insertion in model container [2018-11-18 15:14:20,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:14:20" (3/3) ... [2018-11-18 15:14:20,725 INFO L112 eAbstractionObserver]: Analyzing ICFG test24_true-unreach-call_true-termination.c [2018-11-18 15:14:20,734 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:14:20,740 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:14:20,753 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:14:20,780 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:14:20,780 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:14:20,780 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:14:20,780 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:14:20,780 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:14:20,781 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:14:20,781 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:14:20,781 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:14:20,792 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-18 15:14:20,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 15:14:20,795 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:14:20,796 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:14:20,797 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:14:20,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:14:20,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1645541931, now seen corresponding path program 1 times [2018-11-18 15:14:20,802 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:14:20,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:14:20,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:14:20,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:14:20,834 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:14:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:14:20,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:14:20,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:14:20,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:14:20,892 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:14:20,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:14:20,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:14:20,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:14:20,904 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-11-18 15:14:20,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:14:20,915 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2018-11-18 15:14:20,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:14:20,916 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-18 15:14:20,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:14:20,922 INFO L225 Difference]: With dead ends: 36 [2018-11-18 15:14:20,922 INFO L226 Difference]: Without dead ends: 18 [2018-11-18 15:14:20,925 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:14:20,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-18 15:14:20,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-18 15:14:20,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 15:14:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-18 15:14:20,951 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2018-11-18 15:14:20,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:14:20,951 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-18 15:14:20,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:14:20,951 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-18 15:14:20,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 15:14:20,952 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:14:20,952 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:14:20,952 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:14:20,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:14:20,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1286468379, now seen corresponding path program 1 times [2018-11-18 15:14:20,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:14:20,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:14:20,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:14:20,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:14:20,954 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:14:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:14:21,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:14:21,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:14:21,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 15:14:21,036 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:14:21,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 15:14:21,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 15:14:21,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 15:14:21,038 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 4 states. [2018-11-18 15:14:21,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:14:21,083 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-11-18 15:14:21,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 15:14:21,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-18 15:14:21,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:14:21,084 INFO L225 Difference]: With dead ends: 29 [2018-11-18 15:14:21,084 INFO L226 Difference]: Without dead ends: 21 [2018-11-18 15:14:21,085 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:14:21,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-18 15:14:21,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-18 15:14:21,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-18 15:14:21,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-11-18 15:14:21,088 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 17 [2018-11-18 15:14:21,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:14:21,088 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-11-18 15:14:21,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 15:14:21,088 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-11-18 15:14:21,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 15:14:21,088 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:14:21,088 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:14:21,089 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:14:21,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:14:21,089 INFO L82 PathProgramCache]: Analyzing trace with hash -438030602, now seen corresponding path program 1 times [2018-11-18 15:14:21,089 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:14:21,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:14:21,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:14:21,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:14:21,090 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:14:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:14:21,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:14:21,168 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:14:21,168 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:14:21,169 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-11-18 15:14:21,170 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [8], [12], [14], [17], [19], [24], [27], [34], [37], [38], [39], [40], [41], [43], [44] [2018-11-18 15:14:21,195 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:14:21,195 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:14:21,310 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:14:21,311 INFO L272 AbstractInterpreter]: Visited 18 different actions 18 times. Never merged. Never widened. Performed 98 root evaluator evaluations with a maximum evaluation depth of 5. Performed 98 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 1 fixpoints after 1 different actions. Largest state had 22 variables. [2018-11-18 15:14:21,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:14:21,327 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:14:21,327 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:14:21,327 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:14:21,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:14:21,335 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:14:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:14:21,363 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:14:21,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 15:14:21,448 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-18 15:14:21,449 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 15:14:21,458 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:14:21,467 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:14:21,467 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2018-11-18 15:14:21,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:14:21,473 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:14:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:14:21,535 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 15:14:21,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2018-11-18 15:14:21,535 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 15:14:21,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 15:14:21,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 15:14:21,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:14:21,536 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 8 states. [2018-11-18 15:14:21,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:14:21,600 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2018-11-18 15:14:21,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 15:14:21,601 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-11-18 15:14:21,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:14:21,602 INFO L225 Difference]: With dead ends: 38 [2018-11-18 15:14:21,602 INFO L226 Difference]: Without dead ends: 30 [2018-11-18 15:14:21,602 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2018-11-18 15:14:21,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-18 15:14:21,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-18 15:14:21,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-18 15:14:21,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-11-18 15:14:21,607 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 20 [2018-11-18 15:14:21,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:14:21,607 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-11-18 15:14:21,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 15:14:21,607 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-11-18 15:14:21,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 15:14:21,608 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:14:21,608 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:14:21,608 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:14:21,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:14:21,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1223047003, now seen corresponding path program 2 times [2018-11-18 15:14:21,608 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:14:21,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:14:21,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:14:21,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:14:21,609 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:14:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:14:21,735 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:14:21,735 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:14:21,735 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:14:21,735 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 15:14:21,735 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 15:14:21,735 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:14:21,736 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/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 [2018-11-18 15:14:21,747 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 15:14:21,748 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 15:14:21,759 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 15:14:21,759 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:14:21,762 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:14:21,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-11-18 15:14:21,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-18 15:14:21,771 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 15:14:21,772 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:14:21,776 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 15:14:21,776 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:22 [2018-11-18 15:14:23,927 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_main_~#ad1~0.base_BEFORE_CALL_1| Int) (v_main_~i~0_15 Int) (|v_main_~#ad1~0.offset_BEFORE_CALL_1| Int)) (= v_main_~i~0_15 (select (select |c_#memory_int| |v_main_~#ad1~0.base_BEFORE_CALL_1|) (+ (* 8 v_main_~i~0_15) |v_main_~#ad1~0.offset_BEFORE_CALL_1|)))) is different from true [2018-11-18 15:14:29,985 WARN L180 SmtUtils]: Spent 6.03 s on a formula simplification that was a NOOP. DAG size: 28 [2018-11-18 15:14:36,030 WARN L180 SmtUtils]: Spent 4.02 s on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-11-18 15:14:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-18 15:14:36,053 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:14:36,265 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-18 15:14:36,280 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 15:14:36,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 9] total 24 [2018-11-18 15:14:36,280 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 15:14:36,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 15:14:36,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 15:14:36,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=429, Unknown=2, NotChecked=42, Total=552 [2018-11-18 15:14:36,282 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 17 states. [2018-11-18 15:14:36,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:14:36,725 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-11-18 15:14:36,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 15:14:36,726 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 29 [2018-11-18 15:14:36,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:14:36,726 INFO L225 Difference]: With dead ends: 39 [2018-11-18 15:14:36,726 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:14:36,727 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=265, Invalid=997, Unknown=2, NotChecked=68, Total=1332 [2018-11-18 15:14:36,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:14:36,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:14:36,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:14:36,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:14:36,728 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-11-18 15:14:36,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:14:36,729 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:14:36,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 15:14:36,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:14:36,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:14:36,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:14:42,786 WARN L180 SmtUtils]: Spent 6.02 s on a formula simplification. DAG size of input: 14 DAG size of output: 1 [2018-11-18 15:14:42,797 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:14:42,797 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:14:42,797 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:14:42,798 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:14:42,798 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 15:14:42,798 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:14:42,798 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:14:42,798 INFO L425 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-18 15:14:42,798 INFO L425 ceAbstractionStarter]: For program point L29-1(lines 29 31) no Hoare annotation was computed. [2018-11-18 15:14:42,798 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 14 38) no Hoare annotation was computed. [2018-11-18 15:14:42,799 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 32) no Hoare annotation was computed. [2018-11-18 15:14:42,799 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 21 32) no Hoare annotation was computed. [2018-11-18 15:14:42,799 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2018-11-18 15:14:42,799 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 14 38) no Hoare annotation was computed. [2018-11-18 15:14:42,799 INFO L421 ceAbstractionStarter]: At program point L30(lines 15 38) the Hoare annotation is: false [2018-11-18 15:14:42,799 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 14 38) the Hoare annotation is: true [2018-11-18 15:14:42,799 INFO L425 ceAbstractionStarter]: For program point L26-1(lines 26 28) no Hoare annotation was computed. [2018-11-18 15:14:42,799 INFO L425 ceAbstractionStarter]: For program point L26-2(lines 26 28) no Hoare annotation was computed. [2018-11-18 15:14:42,800 INFO L421 ceAbstractionStarter]: At program point L26-4(lines 26 28) the Hoare annotation is: (and (<= main_~i~0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (= main_~pa~0.base |main_~#ad1~0.base|) (exists ((v_main_~i~0_15 Int)) (let ((.cse0 (+ (* 8 v_main_~i~0_15) |main_~#ad1~0.offset|))) (and (= v_main_~i~0_15 (select (select |#memory_int| main_~pa~0.base) .cse0)) (= .cse0 main_~pa~0.offset))))) [2018-11-18 15:14:42,800 INFO L421 ceAbstractionStarter]: At program point L26-5(lines 26 28) the Hoare annotation is: (and (<= main_~i~0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (exists ((v_main_~i~0_15 Int)) (let ((.cse0 (select (select |#memory_int| |main_~#ad1~0.base|) (+ (* 8 v_main_~i~0_15) |main_~#ad1~0.offset|)))) (and (<= main_~i~0 .cse0) (= v_main_~i~0_15 .cse0) (<= .cse0 main_~i~0)))) (= main_~pa~0.base |main_~#ad1~0.base|) (exists ((v_main_~i~0_15 Int)) (let ((.cse1 (+ (* 8 v_main_~i~0_15) |main_~#ad1~0.offset|))) (and (= v_main_~i~0_15 (select (select |#memory_int| main_~pa~0.base) .cse1)) (= .cse1 main_~pa~0.offset))))) [2018-11-18 15:14:42,800 INFO L428 ceAbstractionStarter]: At program point checkENTRY(lines 9 12) the Hoare annotation is: true [2018-11-18 15:14:42,800 INFO L425 ceAbstractionStarter]: For program point checkFINAL(lines 9 12) no Hoare annotation was computed. [2018-11-18 15:14:42,800 INFO L425 ceAbstractionStarter]: For program point checkEXIT(lines 9 12) no Hoare annotation was computed. [2018-11-18 15:14:42,803 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] [2018-11-18 15:14:42,804 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] [2018-11-18 15:14:42,804 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] [2018-11-18 15:14:42,805 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:14:42,806 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:14:42,810 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] [2018-11-18 15:14:42,811 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] [2018-11-18 15:14:42,811 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] [2018-11-18 15:14:42,811 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:14:42,811 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:14:42,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:14:42 BoogieIcfgContainer [2018-11-18 15:14:42,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:14:42,814 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:14:42,814 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:14:42,814 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:14:42,815 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:14:20" (3/4) ... [2018-11-18 15:14:42,817 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:14:42,821 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:14:42,821 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:14:42,821 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2018-11-18 15:14:42,824 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-18 15:14:42,824 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 15:14:42,824 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:14:42,824 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:14:42,841 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (i <= unknown-#memory_int-unknown[pa][pa] && pa == ad1) && (\exists v_main_~i~0_15 : int :: v_main_~i~0_15 == unknown-#memory_int-unknown[pa][8 * v_main_~i~0_15 + ad1] && 8 * v_main_~i~0_15 + ad1 == pa) [2018-11-18 15:14:42,850 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cc0f9a2a-e876-4689-a16c-ff393220ff98/bin-2019/utaipan/witness.graphml [2018-11-18 15:14:42,850 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:14:42,851 INFO L168 Benchmark]: Toolchain (without parser) took 22532.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 961.1 MB in the beginning and 831.1 MB in the end (delta: 129.9 MB). Peak memory consumption was 273.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:14:42,851 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-11-18 15:14:42,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.84 ms. Allocated memory is still 1.0 GB. Free memory was 961.1 MB in the beginning and 950.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:14:42,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.99 ms. Allocated memory is still 1.0 GB. Free memory was 950.3 MB in the beginning and 945.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:14:42,852 INFO L168 Benchmark]: Boogie Preprocessor took 54.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:14:42,852 INFO L168 Benchmark]: RCFGBuilder took 156.29 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: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:14:42,853 INFO L168 Benchmark]: TraceAbstraction took 22093.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 838.1 MB in the end (delta: 284.2 MB). Peak memory consumption was 284.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:14:42,853 INFO L168 Benchmark]: Witness Printer took 36.20 ms. Allocated memory is still 1.2 GB. Free memory was 838.1 MB in the beginning and 831.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-18 15:14:42,855 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 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.84 ms. Allocated memory is still 1.0 GB. Free memory was 961.1 MB in the beginning and 950.3 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 13.99 ms. Allocated memory is still 1.0 GB. Free memory was 950.3 MB in the beginning and 945.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 156.29 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: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22093.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 838.1 MB in the end (delta: 284.2 MB). Peak memory consumption was 284.2 MB. Max. memory is 11.5 GB. * Witness Printer took 36.20 ms. Allocated memory is still 1.2 GB. Free memory was 838.1 MB in the beginning and 831.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 36]: 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: 26]: Loop Invariant [2018-11-18 15:14:42,860 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] [2018-11-18 15:14:42,860 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] [2018-11-18 15:14:42,860 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] [2018-11-18 15:14:42,860 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:14:42,861 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:14:42,861 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] [2018-11-18 15:14:42,861 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] [2018-11-18 15:14:42,861 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_15,QUANTIFIED] [2018-11-18 15:14:42,862 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:14:42,862 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (i <= unknown-#memory_int-unknown[pa][pa] && pa == ad1) && (\exists v_main_~i~0_15 : int :: v_main_~i~0_15 == unknown-#memory_int-unknown[pa][8 * v_main_~i~0_15 + ad1] && 8 * v_main_~i~0_15 + ad1 == pa) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 22.0s OverallTime, 4 OverallIterations, 5 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 6.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 66 SDtfs, 22 SDslu, 152 SDs, 0 SdLazy, 117 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 81 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 14.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 12 PreInvPairs, 18 NumberOfFragments, 103 HoareAnnotationTreeSize, 12 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 185 FormulaSimplificationTreeSizeReductionInter, 6.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 14.8s InterpolantComputationTime, 130 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 171 ConstructedInterpolants, 31 QuantifiedInterpolants, 36003 SizeOfPredicates, 25 NumberOfNonLiveVariables, 170 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 41/99 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...