./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 aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer/config/AutomizerReach.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_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer --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 Automizer --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-aa41828 [2018-11-23 09:36:04,956 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 09:36:04,958 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 09:36:04,967 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 09:36:04,967 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 09:36:04,968 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 09:36:04,969 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 09:36:04,971 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 09:36:04,972 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 09:36:04,974 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 09:36:04,975 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 09:36:04,975 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 09:36:04,976 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 09:36:04,977 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 09:36:04,978 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 09:36:04,979 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 09:36:04,979 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 09:36:04,981 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 09:36:04,983 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 09:36:04,984 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 09:36:04,986 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 09:36:04,987 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 09:36:04,989 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 09:36:04,990 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 09:36:04,990 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 09:36:04,991 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 09:36:04,992 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 09:36:04,992 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 09:36:04,993 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 09:36:04,994 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 09:36:04,994 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 09:36:04,995 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 09:36:04,995 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 09:36:04,995 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 09:36:04,996 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 09:36:04,997 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 09:36:04,998 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 09:36:05,010 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 09:36:05,011 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 09:36:05,011 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 09:36:05,012 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 09:36:05,012 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 09:36:05,013 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 09:36:05,013 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 09:36:05,014 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 09:36:05,014 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 09:36:05,014 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 09:36:05,014 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 09:36:05,015 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 09:36:05,015 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 09:36:05,015 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 09:36:05,015 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 09:36:05,015 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 09:36:05,016 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 09:36:05,016 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 09:36:05,016 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 09:36:05,016 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 09:36:05,016 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 09:36:05,017 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 09:36:05,017 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 09:36:05,018 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 09:36:05,019 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 09:36:05,019 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 09:36:05,019 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 09:36:05,019 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 09:36:05,020 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 09:36:05,020 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 09:36:05,020 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer 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 -> Automizer 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 [2018-11-23 09:36:05,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 09:36:05,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 09:36:05,065 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 09:36:05,066 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 09:36:05,067 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 09:36:05,067 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer/../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c.v+sep-reducer.c [2018-11-23 09:36:05,126 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer/data/e37c60dc1/ff76298283624ad296eae4f9cda48b47/FLAG118bbcee9 [2018-11-23 09:36:05,513 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 09:36:05,514 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_daaaa74b-a266-40e0-a671-426e5a6a0d1b/sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c.v+sep-reducer.c [2018-11-23 09:36:05,521 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer/data/e37c60dc1/ff76298283624ad296eae4f9cda48b47/FLAG118bbcee9 [2018-11-23 09:36:05,532 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer/data/e37c60dc1/ff76298283624ad296eae4f9cda48b47 [2018-11-23 09:36:05,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 09:36:05,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 09:36:05,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 09:36:05,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 09:36:05,539 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 09:36:05,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:36:05" (1/1) ... [2018-11-23 09:36:05,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c8d80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:05, skipping insertion in model container [2018-11-23 09:36:05,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:36:05" (1/1) ... [2018-11-23 09:36:05,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 09:36:05,571 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 09:36:05,712 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:36:05,717 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 09:36:05,739 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:36:05,752 INFO L195 MainTranslator]: Completed translation [2018-11-23 09:36:05,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:05 WrapperNode [2018-11-23 09:36:05,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 09:36:05,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 09:36:05,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 09:36:05,753 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 09:36:05,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:05" (1/1) ... [2018-11-23 09:36:05,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:05" (1/1) ... [2018-11-23 09:36:05,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 09:36:05,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 09:36:05,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 09:36:05,771 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 09:36:05,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:05" (1/1) ... [2018-11-23 09:36:05,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:05" (1/1) ... [2018-11-23 09:36:05,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:05" (1/1) ... [2018-11-23 09:36:05,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:05" (1/1) ... [2018-11-23 09:36:05,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:05" (1/1) ... [2018-11-23 09:36:05,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:05" (1/1) ... [2018-11-23 09:36:05,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:05" (1/1) ... [2018-11-23 09:36:05,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 09:36:05,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 09:36:05,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 09:36:05,834 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 09:36:05,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer/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 [2018-11-23 09:36:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 09:36:05,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 09:36:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 09:36:05,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 09:36:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 09:36:05,878 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 09:36:06,067 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 09:36:06,067 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 09:36:06,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:36:06 BoogieIcfgContainer [2018-11-23 09:36:06,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 09:36:06,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 09:36:06,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 09:36:06,070 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 09:36:06,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:36:05" (1/3) ... [2018-11-23 09:36:06,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305262df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:36:06, skipping insertion in model container [2018-11-23 09:36:06,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:05" (2/3) ... [2018-11-23 09:36:06,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305262df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:36:06, skipping insertion in model container [2018-11-23 09:36:06,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:36:06" (3/3) ... [2018-11-23 09:36:06,073 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c.v+sep-reducer.c [2018-11-23 09:36:06,081 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 09:36:06,087 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 09:36:06,101 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 09:36:06,126 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 09:36:06,127 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 09:36:06,127 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 09:36:06,127 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 09:36:06,127 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 09:36:06,127 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 09:36:06,127 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 09:36:06,128 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 09:36:06,128 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 09:36:06,145 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-23 09:36:06,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 09:36:06,151 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:36:06,151 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:36:06,153 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:36:06,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:36:06,157 INFO L82 PathProgramCache]: Analyzing trace with hash 453243256, now seen corresponding path program 1 times [2018-11-23 09:36:06,158 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:36:06,158 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:36:06,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:36:06,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:36:06,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:36:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:36:06,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:36:06,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:36:06,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 09:36:06,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 09:36:06,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 09:36:06,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 09:36:06,510 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2018-11-23 09:36:06,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:36:06,676 INFO L93 Difference]: Finished difference Result 52 states and 70 transitions. [2018-11-23 09:36:06,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 09:36:06,678 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-23 09:36:06,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:36:06,683 INFO L225 Difference]: With dead ends: 52 [2018-11-23 09:36:06,683 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 09:36:06,686 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:36:06,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 09:36:06,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 09:36:06,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 09:36:06,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 09:36:06,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-23 09:36:06,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:36:06,706 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 09:36:06,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 09:36:06,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 09:36:06,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 09:36:06,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 09:36:06,738 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 09:36:06,738 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 09:36:06,738 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 09:36:06,738 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 09:36:06,738 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 09:36:06,738 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 09:36:06,738 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 09:36:06,739 INFO L448 ceAbstractionStarter]: For program point L93(lines 93 102) no Hoare annotation was computed. [2018-11-23 09:36:06,739 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 145) no Hoare annotation was computed. [2018-11-23 09:36:06,739 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2018-11-23 09:36:06,739 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))))))) [2018-11-23 09:36:06,739 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 80) no Hoare annotation was computed. [2018-11-23 09:36:06,740 INFO L448 ceAbstractionStarter]: For program point L86(lines 86 108) no Hoare annotation was computed. [2018-11-23 09:36:06,740 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 144) no Hoare annotation was computed. [2018-11-23 09:36:06,740 INFO L448 ceAbstractionStarter]: For program point L115(lines 115 137) no Hoare annotation was computed. [2018-11-23 09:36:06,740 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 82) no Hoare annotation was computed. [2018-11-23 09:36:06,740 INFO L451 ceAbstractionStarter]: At program point L136(lines 14 145) the Hoare annotation is: true [2018-11-23 09:36:06,740 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 138) no Hoare annotation was computed. [2018-11-23 09:36:06,740 INFO L448 ceAbstractionStarter]: For program point L95(line 95) no Hoare annotation was computed. [2018-11-23 09:36:06,740 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 81) no Hoare annotation was computed. [2018-11-23 09:36:06,741 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))))))) [2018-11-23 09:36:06,741 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 145) no Hoare annotation was computed. [2018-11-23 09:36:06,741 INFO L451 ceAbstractionStarter]: At program point L133(lines 33 138) the Hoare annotation is: true [2018-11-23 09:36:06,741 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 145) the Hoare annotation is: true [2018-11-23 09:36:06,742 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))))))) [2018-11-23 09:36:06,742 INFO L451 ceAbstractionStarter]: At program point L121(lines 33 138) the Hoare annotation is: true [2018-11-23 09:36:06,742 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 139) no Hoare annotation was computed. [2018-11-23 09:36:06,742 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 109) no Hoare annotation was computed. [2018-11-23 09:36:06,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:36:06 BoogieIcfgContainer [2018-11-23 09:36:06,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 09:36:06,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 09:36:06,756 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 09:36:06,757 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 09:36:06,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:36:06" (3/4) ... [2018-11-23 09:36:06,760 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 09:36:06,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 09:36:06,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 09:36:06,769 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-23 09:36:06,769 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 09:36:06,814 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_daaaa74b-a266-40e0-a671-426e5a6a0d1b/bin-2019/uautomizer/witness.graphml [2018-11-23 09:36:06,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 09:36:06,815 INFO L168 Benchmark]: Toolchain (without parser) took 1279.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-11-23 09:36:06,816 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-11-23 09:36:06,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.88 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-23 09:36:06,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.71 ms. Allocated memory is still 1.0 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:36:06,817 INFO L168 Benchmark]: Boogie Preprocessor took 63.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 945.5 MB in the beginning and 1.2 GB in the end (delta: -227.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-11-23 09:36:06,817 INFO L168 Benchmark]: RCFGBuilder took 233.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2018-11-23 09:36:06,818 INFO L168 Benchmark]: TraceAbstraction took 688.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. [2018-11-23 09:36:06,818 INFO L168 Benchmark]: Witness Printer took 57.80 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-23 09:36:06,820 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 215.88 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.71 ms. Allocated memory is still 1.0 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 945.5 MB in the beginning and 1.2 GB in the end (delta: -227.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 233.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 688.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. * Witness Printer took 57.80 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: 3.2 MB). Peak memory consumption was 3.2 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, 0.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 10 SDslu, 44 SDs, 0 SdLazy, 17 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 0.2s 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...