./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-examples/standard_sentinel_true-unreach-call.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/standard_sentinel_true-unreach-call.i.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/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 c0477f4e5b27a6da26de88eabc674e3fb9f5fd06 .................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:16:53,532 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:16:53,533 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:16:53,540 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:16:53,540 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:16:53,541 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:16:53,542 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:16:53,543 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:16:53,544 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:16:53,545 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:16:53,546 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:16:53,546 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:16:53,546 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:16:53,547 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:16:53,548 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:16:53,548 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:16:53,549 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:16:53,550 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:16:53,551 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:16:53,552 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:16:53,553 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:16:53,554 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:16:53,555 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:16:53,556 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:16:53,556 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:16:53,556 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:16:53,557 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:16:53,557 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:16:53,558 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:16:53,558 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:16:53,558 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:16:53,559 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:16:53,559 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:16:53,559 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:16:53,559 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:16:53,560 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:16:53,560 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 13:16:53,567 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:16:53,567 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:16:53,568 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:16:53,568 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 13:16:53,568 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 13:16:53,568 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 13:16:53,568 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 13:16:53,568 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:16:53,568 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:16:53,569 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:16:53,569 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:16:53,569 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:16:53,569 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:16:53,569 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:16:53,569 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:16:53,569 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:16:53,569 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:16:53,570 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:16:53,570 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:16:53,570 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:16:53,570 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:16:53,570 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:16:53,570 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:16:53,570 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:16:53,570 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:16:53,571 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:16:53,571 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 13:16:53,571 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:16:53,571 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:16:53,571 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_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/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 -> c0477f4e5b27a6da26de88eabc674e3fb9f5fd06 [2018-11-10 13:16:53,597 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:16:53,607 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:16:53,609 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:16:53,610 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:16:53,611 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:16:53,611 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/bin-2019/uautomizer/../../sv-benchmarks/c/array-examples/standard_sentinel_true-unreach-call.i.v+cfa-reducer.c [2018-11-10 13:16:53,658 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/bin-2019/uautomizer/data/786a5964c/6ac14dac6ab047e8801ec9744994be72/FLAG4975a52ed [2018-11-10 13:16:54,074 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:16:54,074 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/sv-benchmarks/c/array-examples/standard_sentinel_true-unreach-call.i.v+cfa-reducer.c [2018-11-10 13:16:54,078 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/bin-2019/uautomizer/data/786a5964c/6ac14dac6ab047e8801ec9744994be72/FLAG4975a52ed [2018-11-10 13:16:54,090 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/bin-2019/uautomizer/data/786a5964c/6ac14dac6ab047e8801ec9744994be72 [2018-11-10 13:16:54,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:16:54,093 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 13:16:54,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:16:54,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:16:54,096 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:16:54,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:16:54" (1/1) ... [2018-11-10 13:16:54,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@163e8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:16:54, skipping insertion in model container [2018-11-10 13:16:54,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:16:54" (1/1) ... [2018-11-10 13:16:54,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:16:54,117 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:16:54,218 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:16:54,221 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:16:54,233 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:16:54,244 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:16:54,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:16:54 WrapperNode [2018-11-10 13:16:54,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:16:54,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:16:54,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:16:54,245 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:16:54,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:16:54" (1/1) ... [2018-11-10 13:16:54,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:16:54" (1/1) ... [2018-11-10 13:16:54,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:16:54" (1/1) ... [2018-11-10 13:16:54,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:16:54" (1/1) ... [2018-11-10 13:16:54,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:16:54" (1/1) ... [2018-11-10 13:16:54,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:16:54" (1/1) ... [2018-11-10 13:16:54,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:16:54" (1/1) ... [2018-11-10 13:16:54,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:16:54,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:16:54,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:16:54,264 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:16:54,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:16:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/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 [2018-11-10 13:16:54,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:16:54,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:16:54,343 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:16:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 13:16:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 13:16:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 13:16:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:16:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 13:16:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 13:16:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 13:16:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 13:16:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:16:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:16:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 13:16:54,464 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:16:54,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:16:54 BoogieIcfgContainer [2018-11-10 13:16:54,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:16:54,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:16:54,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:16:54,468 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:16:54,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:16:54" (1/3) ... [2018-11-10 13:16:54,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4224243b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:16:54, skipping insertion in model container [2018-11-10 13:16:54,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:16:54" (2/3) ... [2018-11-10 13:16:54,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4224243b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:16:54, skipping insertion in model container [2018-11-10 13:16:54,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:16:54" (3/3) ... [2018-11-10 13:16:54,471 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_sentinel_true-unreach-call.i.v+cfa-reducer.c [2018-11-10 13:16:54,479 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:16:54,484 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:16:54,493 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:16:54,514 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:16:54,514 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:16:54,514 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:16:54,514 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:16:54,514 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:16:54,515 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:16:54,515 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:16:54,515 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:16:54,515 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:16:54,528 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-10 13:16:54,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 13:16:54,533 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:16:54,534 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:16:54,535 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:16:54,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:16:54,540 INFO L82 PathProgramCache]: Analyzing trace with hash 77567859, now seen corresponding path program 1 times [2018-11-10 13:16:54,542 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:16:54,542 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:16:54,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:16:54,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:16:54,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:16:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:16:54,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:16:54,687 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:16:54,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 13:16:54,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 13:16:54,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 13:16:54,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:16:54,701 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 5 states. [2018-11-10 13:16:54,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:16:54,769 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2018-11-10 13:16:54,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 13:16:54,770 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-11-10 13:16:54,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:16:54,777 INFO L225 Difference]: With dead ends: 43 [2018-11-10 13:16:54,777 INFO L226 Difference]: Without dead ends: 18 [2018-11-10 13:16:54,779 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-10 13:16:54,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-10 13:16:54,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-10 13:16:54,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 13:16:54,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-10 13:16:54,802 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2018-11-10 13:16:54,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:16:54,802 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-10 13:16:54,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 13:16:54,802 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-10 13:16:54,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 13:16:54,803 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:16:54,803 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:16:54,803 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:16:54,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:16:54,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1526180022, now seen corresponding path program 1 times [2018-11-10 13:16:54,804 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:16:54,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:16:54,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:16:54,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:16:54,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:16:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:16:55,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:16:55,078 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:16:55,078 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 13:16:55,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:16:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:16:55,119 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:16:55,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-11-10 13:16:55,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-10 13:16:55,182 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 13:16:55,184 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:16:55,189 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:16:55,189 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2018-11-10 13:16:55,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-10 13:16:55,239 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 16 [2018-11-10 13:16:55,239 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-10 13:16:55,242 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 13:16:55,249 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-10 13:16:55,249 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:30 [2018-11-10 13:16:55,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:16:55,311 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 13:16:55,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 15 [2018-11-10 13:16:55,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-10 13:16:55,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-10 13:16:55,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2018-11-10 13:16:55,313 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 15 states. [2018-11-10 13:16:55,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:16:55,457 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-11-10 13:16:55,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 13:16:55,457 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 17 [2018-11-10 13:16:55,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:16:55,458 INFO L225 Difference]: With dead ends: 23 [2018-11-10 13:16:55,458 INFO L226 Difference]: Without dead ends: 20 [2018-11-10 13:16:55,459 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2018-11-10 13:16:55,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-10 13:16:55,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-10 13:16:55,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 13:16:55,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-11-10 13:16:55,462 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2018-11-10 13:16:55,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:16:55,462 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-11-10 13:16:55,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-10 13:16:55,462 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-11-10 13:16:55,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 13:16:55,463 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:16:55,463 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:16:55,463 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:16:55,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:16:55,464 INFO L82 PathProgramCache]: Analyzing trace with hash 2073064761, now seen corresponding path program 2 times [2018-11-10 13:16:55,464 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:16:55,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:16:55,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:16:55,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:16:55,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:16:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:16:55,774 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:16:55,775 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:16:55,775 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 13:16:55,791 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 13:16:55,816 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 13:16:55,816 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 13:16:55,818 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:16:55,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-11-10 13:16:55,833 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-10 13:16:55,833 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 13:16:55,835 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:16:55,846 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:16:55,846 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2018-11-10 13:16:55,899 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2018-11-10 13:16:55,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 41 [2018-11-10 13:16:55,915 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 3 xjuncts. [2018-11-10 13:16:55,927 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 13:16:55,940 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-10 13:16:55,941 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:58 [2018-11-10 13:16:56,003 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:16:56,022 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 13:16:56,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 19 [2018-11-10 13:16:56,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-10 13:16:56,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-10 13:16:56,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-11-10 13:16:56,023 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 19 states. [2018-11-10 13:16:56,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:16:56,339 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2018-11-10 13:16:56,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-10 13:16:56,340 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 19 [2018-11-10 13:16:56,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:16:56,340 INFO L225 Difference]: With dead ends: 23 [2018-11-10 13:16:56,340 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:16:56,340 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=552, Unknown=0, NotChecked=0, Total=756 [2018-11-10 13:16:56,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:16:56,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:16:56,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:16:56,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:16:56,341 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-11-10 13:16:56,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:16:56,341 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:16:56,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-10 13:16:56,342 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:16:56,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:16:56,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:16:56,396 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:16:56,396 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:16:56,396 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:16:56,396 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:16:56,396 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 13:16:56,396 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:16:56,396 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:16:56,397 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 42) no Hoare annotation was computed. [2018-11-10 13:16:56,397 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 7 55) no Hoare annotation was computed. [2018-11-10 13:16:56,397 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 44) no Hoare annotation was computed. [2018-11-10 13:16:56,397 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 7 55) no Hoare annotation was computed. [2018-11-10 13:16:56,397 INFO L425 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-11-10 13:16:56,397 INFO L425 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-11-10 13:16:56,397 INFO L425 ceAbstractionStarter]: For program point L9-2(line 9) no Hoare annotation was computed. [2018-11-10 13:16:56,397 INFO L425 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2018-11-10 13:16:56,397 INFO L425 ceAbstractionStarter]: For program point L9-4(line 9) no Hoare annotation was computed. [2018-11-10 13:16:56,397 INFO L425 ceAbstractionStarter]: For program point L9-5(line 9) no Hoare annotation was computed. [2018-11-10 13:16:56,398 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2018-11-10 13:16:56,398 INFO L425 ceAbstractionStarter]: For program point L9-6(line 9) no Hoare annotation was computed. [2018-11-10 13:16:56,398 INFO L425 ceAbstractionStarter]: For program point L9-7(line 9) no Hoare annotation was computed. [2018-11-10 13:16:56,398 INFO L425 ceAbstractionStarter]: For program point L9-8(line 9) no Hoare annotation was computed. [2018-11-10 13:16:56,398 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 7 55) the Hoare annotation is: true [2018-11-10 13:16:56,398 INFO L421 ceAbstractionStarter]: At program point L24(lines 17 45) the Hoare annotation is: (let ((.cse4 (* 4 main_~main__pos~0))) (let ((.cse0 (+ |main_~#main__a~0.offset| .cse4))) (let ((.cse1 (= main_~main__marker~0 (select (select |#memory_int| |main_~#main__a~0.base|) .cse0))) (.cse2 (= |main_~#main__a~0.offset| 0)) (.cse3 (< 0 (+ |main_~#main__a~0.offset| .cse4 1)))) (or (and (not (= .cse0 0)) .cse1 .cse2 .cse3 (< main_~main__i~0 (+ main_~main__pos~0 1))) (and .cse1 (= main_~main__i~0 0) .cse2 .cse3))))) [2018-11-10 13:16:56,398 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-10 13:16:56,398 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-10 13:16:56,398 INFO L425 ceAbstractionStarter]: For program point L16(lines 16 49) no Hoare annotation was computed. [2018-11-10 13:16:56,399 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 54) no Hoare annotation was computed. [2018-11-10 13:16:56,399 INFO L425 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-11-10 13:16:56,403 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 13:16:56,404 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 13:16:56,407 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 13:16:56,407 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 13:16:56,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:16:56 BoogieIcfgContainer [2018-11-10 13:16:56,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:16:56,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:16:56,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:16:56,409 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:16:56,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:16:54" (3/4) ... [2018-11-10 13:16:56,412 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:16:56,416 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:16:56,416 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:16:56,419 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 13:16:56,419 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 13:16:56,419 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 13:16:56,450 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7ae7c1b9-416c-418f-8ed3-d7ff0dc5d142/bin-2019/uautomizer/witness.graphml [2018-11-10 13:16:56,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:16:56,450 INFO L168 Benchmark]: Toolchain (without parser) took 2358.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 960.9 MB in the beginning and 1.0 GB in the end (delta: -82.3 MB). Peak memory consumption was 56.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:16:56,452 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:16:56,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.59 ms. Allocated memory is still 1.0 GB. Free memory was 960.9 MB in the beginning and 950.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:16:56,452 INFO L168 Benchmark]: Boogie Preprocessor took 18.05 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 944.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:16:56,453 INFO L168 Benchmark]: RCFGBuilder took 201.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-10 13:16:56,453 INFO L168 Benchmark]: TraceAbstraction took 1943.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:16:56,453 INFO L168 Benchmark]: Witness Printer took 40.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:16:56,455 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.59 ms. Allocated memory is still 1.0 GB. Free memory was 960.9 MB in the beginning and 950.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.05 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 944.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 201.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1943.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. * Witness Printer took 40.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: 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: 17]: Loop Invariant [2018-11-10 13:16:56,458 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 13:16:56,459 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 13:16:56,459 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 13:16:56,459 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((!(main__a + 4 * main__pos == 0) && main__marker == unknown-#memory_int-unknown[main__a][main__a + 4 * main__pos]) && main__a == 0) && 0 < main__a + 4 * main__pos + 1) && main__i < main__pos + 1) || (((main__marker == unknown-#memory_int-unknown[main__a][main__a + 4 * main__pos] && main__i == 0) && main__a == 0) && 0 < main__a + 4 * main__pos + 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 45 SDtfs, 105 SDslu, 137 SDs, 0 SdLazy, 157 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.0s 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 67 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 127 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 12164 SizeOfPredicates, 16 NumberOfNonLiveVariables, 163 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...