./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/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 950698bc17a751834ff482c414f89d89b98af415 ............................................................................................................................................................................................................................................................................................................................................................................................................. 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 08:43:01,225 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:43:01,227 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:43:01,235 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:43:01,235 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:43:01,236 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:43:01,237 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:43:01,238 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:43:01,239 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:43:01,240 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:43:01,240 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:43:01,240 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:43:01,241 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:43:01,242 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:43:01,243 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:43:01,244 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:43:01,244 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:43:01,245 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:43:01,247 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:43:01,248 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:43:01,249 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:43:01,250 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:43:01,251 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:43:01,251 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:43:01,252 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:43:01,252 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:43:01,253 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:43:01,253 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:43:01,254 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:43:01,254 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:43:01,255 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:43:01,255 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:43:01,255 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:43:01,256 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:43:01,256 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:43:01,257 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:43:01,257 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 08:43:01,267 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:43:01,267 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:43:01,267 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 08:43:01,268 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 08:43:01,268 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 08:43:01,268 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 08:43:01,268 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 08:43:01,268 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 08:43:01,268 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 08:43:01,268 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 08:43:01,268 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 08:43:01,269 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:43:01,269 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 08:43:01,269 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:43:01,269 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 08:43:01,269 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:43:01,269 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 08:43:01,270 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 08:43:01,271 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 08:43:01,271 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 08:43:01,271 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:43:01,271 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 08:43:01,271 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:43:01,271 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:43:01,272 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 08:43:01,272 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 08:43:01,272 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:43:01,272 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:43:01,272 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 08:43:01,272 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 08:43:01,272 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 08:43:01,272 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 08:43:01,272 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 08:43:01,273 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 08:43:01,273 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_a1571640-03e6-4fdf-bf20-4341e0fcc50b/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 -> 950698bc17a751834ff482c414f89d89b98af415 [2018-11-10 08:43:01,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:43:01,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:43:01,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:43:01,309 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:43:01,309 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:43:01,310 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/bin-2019/utaipan/../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c [2018-11-10 08:43:01,354 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/bin-2019/utaipan/data/1599283ed/d1dd1def1bff4cc9a68c3f7279d8cc0c/FLAG7b0dab9a8 [2018-11-10 08:43:01,700 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:43:01,701 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c [2018-11-10 08:43:01,706 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/bin-2019/utaipan/data/1599283ed/d1dd1def1bff4cc9a68c3f7279d8cc0c/FLAG7b0dab9a8 [2018-11-10 08:43:01,715 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/bin-2019/utaipan/data/1599283ed/d1dd1def1bff4cc9a68c3f7279d8cc0c [2018-11-10 08:43:01,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:43:01,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:43:01,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:43:01,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:43:01,722 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:43:01,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:43:01" (1/1) ... [2018-11-10 08:43:01,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769b41f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:43:01, skipping insertion in model container [2018-11-10 08:43:01,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:43:01" (1/1) ... [2018-11-10 08:43:01,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:43:01,746 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:43:01,836 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:43:01,838 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:43:01,848 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:43:01,859 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:43:01,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:43:01 WrapperNode [2018-11-10 08:43:01,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:43:01,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:43:01,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:43:01,860 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:43:01,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:43:01" (1/1) ... [2018-11-10 08:43:01,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:43:01" (1/1) ... [2018-11-10 08:43:01,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:43:01,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:43:01,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:43:01,876 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:43:01,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:43:01" (1/1) ... [2018-11-10 08:43:01,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:43:01" (1/1) ... [2018-11-10 08:43:01,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:43:01" (1/1) ... [2018-11-10 08:43:01,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:43:01" (1/1) ... [2018-11-10 08:43:01,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:43:01" (1/1) ... [2018-11-10 08:43:01,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:43:01" (1/1) ... [2018-11-10 08:43:01,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:43:01" (1/1) ... [2018-11-10 08:43:01,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:43:01,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:43:01,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:43:01,893 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:43:01,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:43:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/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 08:43:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 08:43:01,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 08:43:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:43:01,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:43:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 08:43:01,974 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 08:43:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 08:43:01,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 08:43:02,107 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:43:02,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:43:02 BoogieIcfgContainer [2018-11-10 08:43:02,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:43:02,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 08:43:02,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 08:43:02,111 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 08:43:02,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 08:43:01" (1/3) ... [2018-11-10 08:43:02,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce2d930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:43:02, skipping insertion in model container [2018-11-10 08:43:02,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:43:01" (2/3) ... [2018-11-10 08:43:02,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce2d930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:43:02, skipping insertion in model container [2018-11-10 08:43:02,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:43:02" (3/3) ... [2018-11-10 08:43:02,114 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c [2018-11-10 08:43:02,123 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 08:43:02,128 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 08:43:02,139 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 08:43:02,159 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 08:43:02,160 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 08:43:02,160 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 08:43:02,160 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:43:02,160 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:43:02,160 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 08:43:02,160 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:43:02,160 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 08:43:02,171 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-10 08:43:02,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 08:43:02,174 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:43:02,175 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:43:02,177 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:43:02,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:43:02,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1560473904, now seen corresponding path program 1 times [2018-11-10 08:43:02,182 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:43:02,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:43:02,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:43:02,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:43:02,218 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:43:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:43:02,249 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 08:43:02,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:43:02,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 08:43:02,250 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:43:02,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 08:43:02,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 08:43:02,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 08:43:02,262 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2018-11-10 08:43:02,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:43:02,279 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2018-11-10 08:43:02,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 08:43:02,281 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-10 08:43:02,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:43:02,286 INFO L225 Difference]: With dead ends: 37 [2018-11-10 08:43:02,286 INFO L226 Difference]: Without dead ends: 17 [2018-11-10 08:43:02,288 INFO L605 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 [2018-11-10 08:43:02,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-10 08:43:02,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-10 08:43:02,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-10 08:43:02,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2018-11-10 08:43:02,312 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2018-11-10 08:43:02,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:43:02,312 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2018-11-10 08:43:02,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 08:43:02,313 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2018-11-10 08:43:02,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 08:43:02,313 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:43:02,313 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:43:02,313 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:43:02,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:43:02,313 INFO L82 PathProgramCache]: Analyzing trace with hash -808267866, now seen corresponding path program 1 times [2018-11-10 08:43:02,314 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:43:02,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:43:02,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:43:02,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:43:02,314 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:43:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:43:02,361 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 08:43:02,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:43:02,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:43:02,361 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:43:02,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 08:43:02,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:43:02,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:43:02,363 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 3 states. [2018-11-10 08:43:02,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:43:02,382 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2018-11-10 08:43:02,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:43:02,383 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-10 08:43:02,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:43:02,383 INFO L225 Difference]: With dead ends: 29 [2018-11-10 08:43:02,383 INFO L226 Difference]: Without dead ends: 23 [2018-11-10 08:43:02,384 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:43:02,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-10 08:43:02,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2018-11-10 08:43:02,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 08:43:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-11-10 08:43:02,387 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 13 [2018-11-10 08:43:02,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:43:02,387 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-11-10 08:43:02,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 08:43:02,387 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-11-10 08:43:02,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 08:43:02,388 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:43:02,388 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:43:02,388 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:43:02,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:43:02,388 INFO L82 PathProgramCache]: Analyzing trace with hash -109903733, now seen corresponding path program 1 times [2018-11-10 08:43:02,388 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:43:02,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:43:02,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:43:02,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:43:02,389 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:43:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:43:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:43:02,532 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:43:02,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 08:43:02,532 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:43:02,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 08:43:02,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 08:43:02,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:43:02,533 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 5 states. [2018-11-10 08:43:08,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:43:08,685 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2018-11-10 08:43:08,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 08:43:08,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-10 08:43:08,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:43:08,686 INFO L225 Difference]: With dead ends: 45 [2018-11-10 08:43:08,686 INFO L226 Difference]: Without dead ends: 26 [2018-11-10 08:43:08,687 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 08:43:08,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-10 08:43:08,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-11-10 08:43:08,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-10 08:43:08,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2018-11-10 08:43:08,692 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 17 [2018-11-10 08:43:08,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:43:08,692 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2018-11-10 08:43:08,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 08:43:08,692 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2018-11-10 08:43:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 08:43:08,693 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:43:08,693 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:43:08,695 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:43:08,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:43:08,695 INFO L82 PathProgramCache]: Analyzing trace with hash 887741156, now seen corresponding path program 1 times [2018-11-10 08:43:08,696 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:43:08,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:43:08,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:43:08,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:43:08,697 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:43:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:43:08,956 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 14 [2018-11-10 08:43:08,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:43:08,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:43:08,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 08:43:08,975 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:43:08,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 08:43:08,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 08:43:08,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:43:08,976 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 5 states. [2018-11-10 08:43:11,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:43:11,247 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2018-11-10 08:43:11,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 08:43:11,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-11-10 08:43:11,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:43:11,248 INFO L225 Difference]: With dead ends: 46 [2018-11-10 08:43:11,248 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 08:43:11,248 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 08:43:11,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 08:43:11,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 08:43:11,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 08:43:11,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 08:43:11,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-11-10 08:43:11,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:43:11,249 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:43:11,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 08:43:11,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 08:43:11,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 08:43:11,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 08:43:12,295 WARN L179 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 26 DAG size of output: 13 [2018-11-10 08:43:13,020 WARN L179 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 19 [2018-11-10 08:43:13,022 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 08:43:13,022 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 08:43:13,022 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 08:43:13,022 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 08:43:13,022 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 08:43:13,022 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 08:43:13,023 INFO L421 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (<= (* 36893488151714070528 (div (+ (* 1431655765 main_~x~0) 4294967296) 4294967296)) (+ (* 12297829381041378645 main_~x~0) 12297829382473034411)) [2018-11-10 08:43:13,023 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 12 33) no Hoare annotation was computed. [2018-11-10 08:43:13,023 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 26) no Hoare annotation was computed. [2018-11-10 08:43:13,023 INFO L421 ceAbstractionStarter]: At program point L23-2(lines 16 29) the Hoare annotation is: (or (<= (* 36893488151714070528 (div (+ (* 1431655765 main_~x~0) 4294967296) 4294967296)) (+ (* 12297829381041378645 main_~x~0) 12297829382473034411)) (and (<= 1 main_~y~0) (<= main_~y~0 1))) [2018-11-10 08:43:13,023 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 28) no Hoare annotation was computed. [2018-11-10 08:43:13,023 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 12 33) no Hoare annotation was computed. [2018-11-10 08:43:13,023 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2018-11-10 08:43:13,023 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 12 33) the Hoare annotation is: true [2018-11-10 08:43:13,023 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 27) no Hoare annotation was computed. [2018-11-10 08:43:13,024 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 29) no Hoare annotation was computed. [2018-11-10 08:43:13,024 INFO L425 ceAbstractionStarter]: For program point L16-2(lines 16 29) no Hoare annotation was computed. [2018-11-10 08:43:13,024 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 12 33) no Hoare annotation was computed. [2018-11-10 08:43:13,024 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 6 10) the Hoare annotation is: true [2018-11-10 08:43:13,024 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-11-10 08:43:13,024 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 6 10) no Hoare annotation was computed. [2018-11-10 08:43:13,024 INFO L425 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-11-10 08:43:13,024 INFO L425 ceAbstractionStarter]: For program point L7(lines 7 8) no Hoare annotation was computed. [2018-11-10 08:43:13,024 INFO L425 ceAbstractionStarter]: For program point L7-2(lines 6 10) no Hoare annotation was computed. [2018-11-10 08:43:13,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 08:43:13 BoogieIcfgContainer [2018-11-10 08:43:13,036 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 08:43:13,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:43:13,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:43:13,037 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:43:13,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:43:02" (3/4) ... [2018-11-10 08:43:13,040 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 08:43:13,047 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 08:43:13,047 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 08:43:13,047 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 08:43:13,050 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-10 08:43:13,051 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 08:43:13,051 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 08:43:13,076 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a1571640-03e6-4fdf-bf20-4341e0fcc50b/bin-2019/utaipan/witness.graphml [2018-11-10 08:43:13,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:43:13,077 INFO L168 Benchmark]: Toolchain (without parser) took 11359.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 954.8 MB in the beginning and 1.0 GB in the end (delta: -89.2 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. [2018-11-10 08:43:13,077 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:43:13,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.02 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 943.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:43:13,078 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.75 ms. Allocated memory is still 1.0 GB. Free memory is still 943.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:43:13,078 INFO L168 Benchmark]: Boogie Preprocessor took 17.07 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:43:13,078 INFO L168 Benchmark]: RCFGBuilder took 215.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 08:43:13,078 INFO L168 Benchmark]: TraceAbstraction took 10927.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 11.5 GB. [2018-11-10 08:43:13,078 INFO L168 Benchmark]: Witness Printer took 39.88 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:43:13,080 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 141.02 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 943.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.75 ms. Allocated memory is still 1.0 GB. Free memory is still 943.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.07 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 215.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10927.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 11.5 GB. * Witness Printer took 39.88 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 16]: Loop Invariant Derived loop invariant: 36893488151714070528 * ((1431655765 * x + 4294967296) / 4294967296) <= 12297829381041378645 * x + 12297829382473034411 || (1 <= y && y <= 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 10.8s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 8.4s AutomataDifference, 0.0s DeadEndRemovalTime, 1.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 90 SDtfs, 11 SDslu, 115 SDs, 0 SdLazy, 48 SolverSat, 7 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 17 NumberOfFragments, 43 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 4029 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...