./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c.v+sep-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/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 f5d9ac754231ae2d56ad4837ed9503039449ffeb ............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:06:49,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:06:49,074 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:06:49,080 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:06:49,080 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:06:49,081 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:06:49,081 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:06:49,082 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:06:49,083 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:06:49,083 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:06:49,084 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:06:49,084 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:06:49,084 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:06:49,085 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:06:49,085 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:06:49,086 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:06:49,086 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:06:49,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:06:49,088 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:06:49,089 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:06:49,089 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:06:49,090 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:06:49,091 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:06:49,091 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:06:49,091 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:06:49,092 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:06:49,092 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:06:49,092 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:06:49,093 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:06:49,093 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:06:49,093 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:06:49,094 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:06:49,094 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:06:49,094 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:06:49,095 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:06:49,095 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:06:49,095 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 00:06:49,102 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:06:49,103 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:06:49,103 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:06:49,103 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:06:49,103 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:06:49,104 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:06:49,104 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:06:49,104 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 00:06:49,104 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:06:49,104 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:06:49,104 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 00:06:49,104 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 00:06:49,104 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:06:49,105 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:06:49,105 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:06:49,105 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:06:49,105 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:06:49,105 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:06:49,105 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:06:49,106 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:06:49,106 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:06:49,106 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:06:49,106 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:06:49,106 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:06:49,106 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:06:49,106 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:06:49,107 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:06:49,107 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:06:49,107 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:06:49,107 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:06:49,107 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:06:49,107 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:06:49,107 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 00:06:49,107 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:06:49,108 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 00:06:49,108 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 00:06:49,108 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_8e6cfba3-16a2-4d25-9651-96e765824420/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 -> f5d9ac754231ae2d56ad4837ed9503039449ffeb [2018-12-09 00:06:49,126 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:06:49,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:06:49,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:06:49,138 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:06:49,139 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:06:49,139 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/bin-2019/utaipan/../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c.v+sep-reducer.c [2018-12-09 00:06:49,177 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/bin-2019/utaipan/data/7669d73bf/2918cd6c98a84709a1ac991e892f4fd0/FLAG9732dbfc0 [2018-12-09 00:06:49,487 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:06:49,487 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c.v+sep-reducer.c [2018-12-09 00:06:49,491 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/bin-2019/utaipan/data/7669d73bf/2918cd6c98a84709a1ac991e892f4fd0/FLAG9732dbfc0 [2018-12-09 00:06:49,499 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/bin-2019/utaipan/data/7669d73bf/2918cd6c98a84709a1ac991e892f4fd0 [2018-12-09 00:06:49,501 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:06:49,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:06:49,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:06:49,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:06:49,505 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:06:49,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:06:49" (1/1) ... [2018-12-09 00:06:49,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ff7dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:06:49, skipping insertion in model container [2018-12-09 00:06:49,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:06:49" (1/1) ... [2018-12-09 00:06:49,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:06:49,523 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:06:49,614 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:06:49,617 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:06:49,631 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:06:49,639 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:06:49,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:06:49 WrapperNode [2018-12-09 00:06:49,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:06:49,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:06:49,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:06:49,640 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:06:49,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:06:49" (1/1) ... [2018-12-09 00:06:49,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:06:49" (1/1) ... [2018-12-09 00:06:49,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:06:49,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:06:49,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:06:49,653 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:06:49,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:06:49" (1/1) ... [2018-12-09 00:06:49,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:06:49" (1/1) ... [2018-12-09 00:06:49,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:06:49" (1/1) ... [2018-12-09 00:06:49,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:06:49" (1/1) ... [2018-12-09 00:06:49,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:06:49" (1/1) ... [2018-12-09 00:06:49,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:06:49" (1/1) ... [2018-12-09 00:06:49,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:06:49" (1/1) ... [2018-12-09 00:06:49,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:06:49,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:06:49,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:06:49,665 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:06:49,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:06:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/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 [2018-12-09 00:06:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:06:49,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:06:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:06:49,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:06:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:06:49,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:06:49,874 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:06:49,874 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 00:06:49,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:06:49 BoogieIcfgContainer [2018-12-09 00:06:49,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:06:49,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:06:49,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:06:49,877 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:06:49,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:06:49" (1/3) ... [2018-12-09 00:06:49,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7501fb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:06:49, skipping insertion in model container [2018-12-09 00:06:49,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:06:49" (2/3) ... [2018-12-09 00:06:49,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7501fb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:06:49, skipping insertion in model container [2018-12-09 00:06:49,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:06:49" (3/3) ... [2018-12-09 00:06:49,879 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c.v+sep-reducer.c [2018-12-09 00:06:49,884 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:06:49,888 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 00:06:49,897 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 00:06:49,915 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:06:49,916 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:06:49,916 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:06:49,916 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:06:49,916 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:06:49,916 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:06:49,916 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:06:49,916 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:06:49,925 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-12-09 00:06:49,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 00:06:49,929 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:06:49,929 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:06:49,930 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:06:49,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:06:49,933 INFO L82 PathProgramCache]: Analyzing trace with hash 453243256, now seen corresponding path program 1 times [2018-12-09 00:06:49,935 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:06:49,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:06:49,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:06:49,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:06:49,962 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:06:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:06:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:06:50,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:06:50,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 00:06:50,124 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:06:50,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 00:06:50,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 00:06:50,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 00:06:50,136 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2018-12-09 00:06:51,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:06:51,263 INFO L93 Difference]: Finished difference Result 52 states and 70 transitions. [2018-12-09 00:06:51,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 00:06:51,264 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-12-09 00:06:51,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:06:51,268 INFO L225 Difference]: With dead ends: 52 [2018-12-09 00:06:51,268 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 00:06:51,270 INFO L631 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 [2018-12-09 00:06:51,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 00:06:51,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 00:06:51,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 00:06:51,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 00:06:51,284 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-12-09 00:06:51,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:06:51,284 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:06:51,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 00:06:51,285 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 00:06:51,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 00:06:51,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 00:06:51,308 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:06:51,309 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 00:06:51,309 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:06:51,309 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:06:51,309 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 00:06:51,309 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 00:06:51,309 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:06:51,309 INFO L448 ceAbstractionStarter]: For program point L93(lines 93 102) no Hoare annotation was computed. [2018-12-09 00:06:51,309 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 145) no Hoare annotation was computed. [2018-12-09 00:06:51,309 INFO L444 ceAbstractionStarter]: At program point L40(lines 22 139) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* (- 4294967296) .cse0))) (let ((.cse1 (div (+ main_~main__x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~main__x~0 .cse2 (* (- 3) .cse1)) 4294967296))))))) [2018-12-09 00:06:51,310 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 80) no Hoare annotation was computed. [2018-12-09 00:06:51,310 INFO L448 ceAbstractionStarter]: For program point L86(lines 86 108) no Hoare annotation was computed. [2018-12-09 00:06:51,310 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 144) no Hoare annotation was computed. [2018-12-09 00:06:51,310 INFO L448 ceAbstractionStarter]: For program point L115(lines 115 137) no Hoare annotation was computed. [2018-12-09 00:06:51,310 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 82) no Hoare annotation was computed. [2018-12-09 00:06:51,310 INFO L451 ceAbstractionStarter]: At program point L136(lines 14 145) the Hoare annotation is: true [2018-12-09 00:06:51,310 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2018-12-09 00:06:51,310 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 138) no Hoare annotation was computed. [2018-12-09 00:06:51,310 INFO L448 ceAbstractionStarter]: For program point L95(line 95) no Hoare annotation was computed. [2018-12-09 00:06:51,310 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 81) no Hoare annotation was computed. [2018-12-09 00:06:51,310 INFO L444 ceAbstractionStarter]: At program point L50(lines 22 139) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* (- 4294967296) .cse0))) (let ((.cse1 (div (+ main_~main__x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~main__x~0 .cse2 (* (- 3) .cse1)) 4294967296))))))) [2018-12-09 00:06:51,310 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 145) no Hoare annotation was computed. [2018-12-09 00:06:51,310 INFO L451 ceAbstractionStarter]: At program point L133(lines 33 138) the Hoare annotation is: true [2018-12-09 00:06:51,311 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 145) the Hoare annotation is: true [2018-12-09 00:06:51,311 INFO L444 ceAbstractionStarter]: At program point L59(lines 34 110) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* (- 4294967296) .cse0))) (let ((.cse1 (div (+ main_~main__x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~main__x~0 .cse2 (* (- 3) .cse1)) 4294967296))))))) [2018-12-09 00:06:51,311 INFO L451 ceAbstractionStarter]: At program point L121(lines 33 138) the Hoare annotation is: true [2018-12-09 00:06:51,311 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 139) no Hoare annotation was computed. [2018-12-09 00:06:51,311 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 109) no Hoare annotation was computed. [2018-12-09 00:06:51,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:06:51 BoogieIcfgContainer [2018-12-09 00:06:51,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:06:51,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:06:51,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:06:51,320 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:06:51,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:06:49" (3/4) ... [2018-12-09 00:06:51,322 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 00:06:51,326 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 00:06:51,326 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 00:06:51,329 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 00:06:51,329 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 00:06:51,363 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8e6cfba3-16a2-4d25-9651-96e765824420/bin-2019/utaipan/witness.graphml [2018-12-09 00:06:51,363 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:06:51,363 INFO L168 Benchmark]: Toolchain (without parser) took 1861.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -109.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:06:51,364 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:06:51,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 136.71 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:06:51,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.73 ms. Allocated memory is still 1.0 GB. Free memory was 940.0 MB in the beginning and 937.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:06:51,365 INFO L168 Benchmark]: Boogie Preprocessor took 12.40 ms. Allocated memory is still 1.0 GB. Free memory is still 937.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:06:51,365 INFO L168 Benchmark]: RCFGBuilder took 209.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 937.3 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:06:51,365 INFO L168 Benchmark]: TraceAbstraction took 1444.35 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: 54.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 11.5 GB. [2018-12-09 00:06:51,365 INFO L168 Benchmark]: Witness Printer took 43.18 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 00:06:51,367 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 136.71 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.0 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 12.73 ms. Allocated memory is still 1.0 GB. Free memory was 940.0 MB in the beginning and 937.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.40 ms. Allocated memory is still 1.0 GB. Free memory is still 937.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 209.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 937.3 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1444.35 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: 54.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 11.5 GB. * Witness Printer took 43.18 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: 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: 95]: 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: 34]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x + -4294967296 * (main__x / 4294967296)) / 3) + 4294967296 * ((main__x + -4294967296 * (main__x / 4294967296) + -3 * ((main__x + -4294967296 * (main__x / 4294967296)) / 3)) / 4294967296) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x + -4294967296 * (main__x / 4294967296)) / 3) + 4294967296 * ((main__x + -4294967296 * (main__x / 4294967296) + -3 * ((main__x + -4294967296 * (main__x / 4294967296)) / 3)) / 4294967296) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x + -4294967296 * (main__x / 4294967296)) / 3) + 4294967296 * ((main__x + -4294967296 * (main__x / 4294967296) + -3 * ((main__x + -4294967296 * (main__x / 4294967296)) / 3)) / 4294967296) - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 10 SDslu, 44 SDs, 0 SdLazy, 17 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 130 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 2464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...