./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Velroyen.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Velroyen.c -s /tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ec006770ad5cd0a3c7db0bdcdc2e13af7e5cceb3 ...................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:19:53,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:19:53,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:19:53,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:19:53,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:19:53,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:19:53,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:19:53,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:19:53,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:19:53,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:19:53,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:19:53,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:19:53,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:19:53,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:19:53,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:19:53,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:19:53,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:19:53,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:19:53,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:19:53,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:19:53,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:19:53,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:19:53,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:19:53,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:19:53,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:19:53,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:19:53,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:19:53,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:19:53,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:19:53,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:19:53,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:19:53,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:19:53,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:19:53,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:19:53,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:19:53,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:19:53,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:19:53,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:19:53,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:19:53,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:19:53,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:19:53,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 16:19:53,529 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:19:53,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:19:53,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:19:53,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:19:53,531 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:19:53,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:19:53,531 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:19:53,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:19:53,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:19:53,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:19:53,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:19:53,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:19:53,532 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 16:19:53,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:19:53,532 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:19:53,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:19:53,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:19:53,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:19:53,533 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:19:53,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:19:53,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:19:53,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:19:53,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:19:53,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:19:53,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:19:53,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:19:53,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:19:53,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:19:53,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec006770ad5cd0a3c7db0bdcdc2e13af7e5cceb3 [2019-12-07 16:19:53,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:19:53,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:19:53,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:19:53,646 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:19:53,646 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:19:53,647 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/Velroyen.c [2019-12-07 16:19:53,685 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/uautomizer/data/df4afc6ad/adedd0a84cff466eafa0c47ba2b6b56e/FLAGdae687646 [2019-12-07 16:19:54,154 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:19:54,154 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/sv-benchmarks/c/termination-crafted-lit/Velroyen.c [2019-12-07 16:19:54,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/uautomizer/data/df4afc6ad/adedd0a84cff466eafa0c47ba2b6b56e/FLAGdae687646 [2019-12-07 16:19:54,167 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/uautomizer/data/df4afc6ad/adedd0a84cff466eafa0c47ba2b6b56e [2019-12-07 16:19:54,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:19:54,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:19:54,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:19:54,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:19:54,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:19:54,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:19:54" (1/1) ... [2019-12-07 16:19:54,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dea95e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:54, skipping insertion in model container [2019-12-07 16:19:54,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:19:54" (1/1) ... [2019-12-07 16:19:54,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:19:54,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:19:54,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:19:54,286 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:19:54,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:19:54,339 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:19:54,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:54 WrapperNode [2019-12-07 16:19:54,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:19:54,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:19:54,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:19:54,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:19:54,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:54" (1/1) ... [2019-12-07 16:19:54,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:54" (1/1) ... [2019-12-07 16:19:54,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:19:54,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:19:54,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:19:54,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:19:54,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:54" (1/1) ... [2019-12-07 16:19:54,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:54" (1/1) ... [2019-12-07 16:19:54,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:54" (1/1) ... [2019-12-07 16:19:54,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:54" (1/1) ... [2019-12-07 16:19:54,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:54" (1/1) ... [2019-12-07 16:19:54,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:54" (1/1) ... [2019-12-07 16:19:54,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:54" (1/1) ... [2019-12-07 16:19:54,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:19:54,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:19:54,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:19:54,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:19:54,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/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 [2019-12-07 16:19:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:19:54,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:19:54,508 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:19:54,509 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 16:19:54,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:19:54 BoogieIcfgContainer [2019-12-07 16:19:54,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:19:54,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:19:54,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:19:54,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:19:54,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:19:54" (1/3) ... [2019-12-07 16:19:54,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d001c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:19:54, skipping insertion in model container [2019-12-07 16:19:54,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:54" (2/3) ... [2019-12-07 16:19:54,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d001c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:19:54, skipping insertion in model container [2019-12-07 16:19:54,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:19:54" (3/3) ... [2019-12-07 16:19:54,514 INFO L109 eAbstractionObserver]: Analyzing ICFG Velroyen.c [2019-12-07 16:19:54,520 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:19:54,524 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 16:19:54,532 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 16:19:54,546 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:19:54,546 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:19:54,546 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:19:54,546 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:19:54,546 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:19:54,547 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:19:54,547 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:19:54,547 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:19:54,555 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-12-07 16:19:54,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 16:19:54,559 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:19:54,559 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:19:54,560 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:19:54,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:54,563 INFO L82 PathProgramCache]: Analyzing trace with hash 925773360, now seen corresponding path program 1 times [2019-12-07 16:19:54,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:54,569 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245877310] [2019-12-07 16:19:54,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:54,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:54,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:19:54,655 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245877310] [2019-12-07 16:19:54,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:19:54,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:19:54,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418427220] [2019-12-07 16:19:54,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:19:54,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:19:54,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:19:54,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:19:54,672 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2019-12-07 16:19:54,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:19:54,710 INFO L93 Difference]: Finished difference Result 19 states and 25 transitions. [2019-12-07 16:19:54,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:19:54,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 16:19:54,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:19:54,718 INFO L225 Difference]: With dead ends: 19 [2019-12-07 16:19:54,718 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 16:19:54,720 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:19:54,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 16:19:54,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2019-12-07 16:19:54,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-12-07 16:19:54,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2019-12-07 16:19:54,743 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 11 transitions. Word has length 6 [2019-12-07 16:19:54,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:19:54,743 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-12-07 16:19:54,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:19:54,743 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 11 transitions. [2019-12-07 16:19:54,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 16:19:54,743 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:19:54,743 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:19:54,744 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:19:54,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:54,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1365796855, now seen corresponding path program 1 times [2019-12-07 16:19:54,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:54,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082093648] [2019-12-07 16:19:54,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:19:54,766 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082093648] [2019-12-07 16:19:54,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:19:54,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:19:54,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052711443] [2019-12-07 16:19:54,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:19:54,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:19:54,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:19:54,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:19:54,768 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand 3 states. [2019-12-07 16:19:54,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:19:54,789 INFO L93 Difference]: Finished difference Result 10 states and 14 transitions. [2019-12-07 16:19:54,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:19:54,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-07 16:19:54,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:19:54,790 INFO L225 Difference]: With dead ends: 10 [2019-12-07 16:19:54,790 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:19:54,790 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:19:54,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:19:54,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:19:54,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:19:54,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:19:54,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-12-07 16:19:54,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:19:54,791 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:19:54,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:19:54,791 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:19:54,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:19:54,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 16:19:54,801 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-12-07 16:19:54,801 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 16:19:54,802 INFO L242 CegarLoopResult]: At program point L29(lines 12 30) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 35) [2019-12-07 16:19:54,802 INFO L246 CegarLoopResult]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-12-07 16:19:54,802 INFO L246 CegarLoopResult]: For program point L15(lines 15 27) no Hoare annotation was computed. [2019-12-07 16:19:54,802 INFO L249 CegarLoopResult]: At program point L15-1(lines 14 28) the Hoare annotation is: true [2019-12-07 16:19:54,802 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-12-07 16:19:54,802 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 16:19:54,802 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 16:19:54,802 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-12-07 16:19:54,802 INFO L246 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-12-07 16:19:54,803 INFO L246 CegarLoopResult]: For program point L16(lines 16 24) no Hoare annotation was computed. [2019-12-07 16:19:54,803 INFO L246 CegarLoopResult]: For program point L14-2(lines 14 28) no Hoare annotation was computed. [2019-12-07 16:19:54,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:19:54 BoogieIcfgContainer [2019-12-07 16:19:54,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:19:54,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:19:54,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:19:54,813 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:19:54,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:19:54" (3/4) ... [2019-12-07 16:19:54,816 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:19:54,822 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 16:19:54,823 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 16:19:54,851 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_67f7f835-84a0-4b47-b115-68022cbcc725/bin/uautomizer/witness.graphml [2019-12-07 16:19:54,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:19:54,853 INFO L168 Benchmark]: Toolchain (without parser) took 682.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 936.6 MB in the beginning and 1.0 GB in the end (delta: -96.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:19:54,853 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 954.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:19:54,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:54,854 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:54,854 INFO L168 Benchmark]: Boogie Preprocessor took 12.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:54,855 INFO L168 Benchmark]: RCFGBuilder took 134.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:54,855 INFO L168 Benchmark]: TraceAbstraction took 302.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:54,855 INFO L168 Benchmark]: Witness Printer took 38.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:54,857 INFO L335 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 954.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 169.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 134.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 302.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * Witness Printer took 38.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: x <= 35 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Result: SAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 7 SDslu, 0 SDs, 0 SdLazy, 25 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...