./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i5_o5_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i5_o5_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/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 e05793781d8e05fe8376a30b6751438f3b1a9d08 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 04:39:57,699 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 04:39:57,700 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 04:39:57,706 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 04:39:57,706 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 04:39:57,707 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 04:39:57,708 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 04:39:57,709 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 04:39:57,709 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 04:39:57,710 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 04:39:57,710 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 04:39:57,710 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 04:39:57,711 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 04:39:57,711 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 04:39:57,712 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 04:39:57,712 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 04:39:57,713 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 04:39:57,714 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 04:39:57,715 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 04:39:57,715 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 04:39:57,716 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 04:39:57,716 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 04:39:57,718 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 04:39:57,718 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 04:39:57,718 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 04:39:57,718 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 04:39:57,719 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 04:39:57,719 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 04:39:57,720 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 04:39:57,720 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 04:39:57,720 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 04:39:57,721 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 04:39:57,721 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 04:39:57,721 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 04:39:57,721 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 04:39:57,722 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 04:39:57,722 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 04:39:57,728 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 04:39:57,729 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 04:39:57,729 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 04:39:57,729 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 04:39:57,730 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 04:39:57,730 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 04:39:57,730 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 04:39:57,730 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 04:39:57,730 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 04:39:57,730 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 04:39:57,730 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 04:39:57,730 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 04:39:57,730 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 04:39:57,730 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 04:39:57,731 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 04:39:57,731 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 04:39:57,731 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 04:39:57,731 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 04:39:57,731 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 04:39:57,731 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 04:39:57,731 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 04:39:57,731 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 04:39:57,731 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 04:39:57,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 04:39:57,732 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 04:39:57,732 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 04:39:57,732 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 04:39:57,732 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 04:39:57,732 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 04:39:57,732 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 04:39:57,732 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_faa16184-cd97-4902-8a6b-bb307bfa358b/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 -> e05793781d8e05fe8376a30b6751438f3b1a9d08 [2018-12-02 04:39:57,749 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 04:39:57,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 04:39:57,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 04:39:57,758 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 04:39:57,758 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 04:39:57,758 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/../../sv-benchmarks/c/recursive-simple/id_i5_o5_true-unreach-call_true-termination.c [2018-12-02 04:39:57,803 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/data/2b378087c/f1d4ad9b2c2e4d4c919fa033266524eb/FLAG46edf0b4c [2018-12-02 04:39:58,221 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 04:39:58,222 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/sv-benchmarks/c/recursive-simple/id_i5_o5_true-unreach-call_true-termination.c [2018-12-02 04:39:58,225 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/data/2b378087c/f1d4ad9b2c2e4d4c919fa033266524eb/FLAG46edf0b4c [2018-12-02 04:39:58,235 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/data/2b378087c/f1d4ad9b2c2e4d4c919fa033266524eb [2018-12-02 04:39:58,236 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 04:39:58,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 04:39:58,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 04:39:58,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 04:39:58,240 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 04:39:58,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:39:58" (1/1) ... [2018-12-02 04:39:58,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf44b87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:58, skipping insertion in model container [2018-12-02 04:39:58,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:39:58" (1/1) ... [2018-12-02 04:39:58,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 04:39:58,256 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 04:39:58,351 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 04:39:58,354 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 04:39:58,363 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 04:39:58,372 INFO L195 MainTranslator]: Completed translation [2018-12-02 04:39:58,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:58 WrapperNode [2018-12-02 04:39:58,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 04:39:58,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 04:39:58,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 04:39:58,373 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 04:39:58,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:58" (1/1) ... [2018-12-02 04:39:58,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:58" (1/1) ... [2018-12-02 04:39:58,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 04:39:58,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 04:39:58,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 04:39:58,385 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 04:39:58,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:58" (1/1) ... [2018-12-02 04:39:58,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:58" (1/1) ... [2018-12-02 04:39:58,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:58" (1/1) ... [2018-12-02 04:39:58,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:58" (1/1) ... [2018-12-02 04:39:58,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:58" (1/1) ... [2018-12-02 04:39:58,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:58" (1/1) ... [2018-12-02 04:39:58,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:58" (1/1) ... [2018-12-02 04:39:58,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 04:39:58,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 04:39:58,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 04:39:58,397 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 04:39:58,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/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 [2018-12-02 04:39:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 04:39:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 04:39:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 04:39:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 04:39:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 04:39:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 04:39:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-12-02 04:39:58,469 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-12-02 04:39:58,549 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 04:39:58,549 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 04:39:58,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:39:58 BoogieIcfgContainer [2018-12-02 04:39:58,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 04:39:58,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 04:39:58,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 04:39:58,552 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 04:39:58,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:39:58" (1/3) ... [2018-12-02 04:39:58,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45072128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:39:58, skipping insertion in model container [2018-12-02 04:39:58,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:58" (2/3) ... [2018-12-02 04:39:58,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45072128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:39:58, skipping insertion in model container [2018-12-02 04:39:58,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:39:58" (3/3) ... [2018-12-02 04:39:58,554 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i5_o5_true-unreach-call_true-termination.c [2018-12-02 04:39:58,560 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 04:39:58,564 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 04:39:58,574 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 04:39:58,592 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 04:39:58,592 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 04:39:58,592 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 04:39:58,592 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 04:39:58,592 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 04:39:58,592 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 04:39:58,593 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 04:39:58,593 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 04:39:58,593 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 04:39:58,603 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-12-02 04:39:58,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 04:39:58,607 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:39:58,607 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:39:58,609 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:39:58,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:39:58,612 INFO L82 PathProgramCache]: Analyzing trace with hash -872342019, now seen corresponding path program 1 times [2018-12-02 04:39:58,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:39:58,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:39:58,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:58,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:39:58,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:39:58,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:39:58,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:39:58,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 04:39:58,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 04:39:58,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 04:39:58,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 04:39:58,723 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2018-12-02 04:39:58,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:39:58,761 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-12-02 04:39:58,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 04:39:58,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-12-02 04:39:58,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:39:58,768 INFO L225 Difference]: With dead ends: 30 [2018-12-02 04:39:58,768 INFO L226 Difference]: Without dead ends: 18 [2018-12-02 04:39:58,769 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 04:39:58,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-02 04:39:58,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-02 04:39:58,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-02 04:39:58,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-12-02 04:39:58,794 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-12-02 04:39:58,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:39:58,794 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-12-02 04:39:58,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 04:39:58,795 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-12-02 04:39:58,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 04:39:58,795 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:39:58,796 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:39:58,796 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:39:58,796 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:39:58,796 INFO L82 PathProgramCache]: Analyzing trace with hash -953570577, now seen corresponding path program 1 times [2018-12-02 04:39:58,796 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:39:58,796 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:39:58,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:58,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:39:58,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:39:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 04:39:58,845 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:39:58,845 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/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 [2018-12-02 04:39:58,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:39:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:39:58,875 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:39:58,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 04:39:58,912 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 04:39:58,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-12-02 04:39:58,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 04:39:58,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 04:39:58,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-02 04:39:58,913 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 6 states. [2018-12-02 04:39:58,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:39:58,950 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-12-02 04:39:58,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 04:39:58,951 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-12-02 04:39:58,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:39:58,951 INFO L225 Difference]: With dead ends: 25 [2018-12-02 04:39:58,951 INFO L226 Difference]: Without dead ends: 21 [2018-12-02 04:39:58,952 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-12-02 04:39:58,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-02 04:39:58,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-12-02 04:39:58,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-02 04:39:58,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-12-02 04:39:58,956 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2018-12-02 04:39:58,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:39:58,956 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-12-02 04:39:58,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 04:39:58,957 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-12-02 04:39:58,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 04:39:58,957 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:39:58,957 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:39:58,958 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:39:58,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:39:58,958 INFO L82 PathProgramCache]: Analyzing trace with hash 397359997, now seen corresponding path program 2 times [2018-12-02 04:39:58,958 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:39:58,958 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:39:58,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:58,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:39:58,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:39:59,009 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-02 04:39:59,010 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:39:59,010 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/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 [2018-12-02 04:39:59,017 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-02 04:39:59,025 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-02 04:39:59,025 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 04:39:59,027 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:39:59,036 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-02 04:39:59,050 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 04:39:59,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-12-02 04:39:59,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 04:39:59,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 04:39:59,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-02 04:39:59,051 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 7 states. [2018-12-02 04:39:59,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:39:59,089 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-12-02 04:39:59,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 04:39:59,089 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-12-02 04:39:59,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:39:59,090 INFO L225 Difference]: With dead ends: 28 [2018-12-02 04:39:59,090 INFO L226 Difference]: Without dead ends: 24 [2018-12-02 04:39:59,090 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-12-02 04:39:59,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-02 04:39:59,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-12-02 04:39:59,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-02 04:39:59,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-12-02 04:39:59,093 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2018-12-02 04:39:59,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:39:59,094 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-12-02 04:39:59,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 04:39:59,094 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-12-02 04:39:59,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-02 04:39:59,094 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:39:59,094 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:39:59,094 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:39:59,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:39:59,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1198310127, now seen corresponding path program 3 times [2018-12-02 04:39:59,095 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:39:59,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:39:59,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:59,095 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 04:39:59,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:39:59,142 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-02 04:39:59,142 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:39:59,142 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 04:39:59,149 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-02 04:39:59,159 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-12-02 04:39:59,159 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 04:39:59,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:39:59,168 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-02 04:39:59,183 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 04:39:59,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-12-02 04:39:59,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 04:39:59,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 04:39:59,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 04:39:59,184 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 8 states. [2018-12-02 04:39:59,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:39:59,228 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2018-12-02 04:39:59,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 04:39:59,229 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-12-02 04:39:59,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:39:59,229 INFO L225 Difference]: With dead ends: 31 [2018-12-02 04:39:59,229 INFO L226 Difference]: Without dead ends: 27 [2018-12-02 04:39:59,230 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-12-02 04:39:59,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-02 04:39:59,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-02 04:39:59,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-02 04:39:59,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-12-02 04:39:59,233 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31 [2018-12-02 04:39:59,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:39:59,233 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-12-02 04:39:59,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 04:39:59,233 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-12-02 04:39:59,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 04:39:59,234 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:39:59,234 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:39:59,234 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:39:59,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:39:59,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1080764669, now seen corresponding path program 4 times [2018-12-02 04:39:59,234 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:39:59,235 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:39:59,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:59,235 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 04:39:59,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:39:59,286 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-02 04:39:59,286 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:39:59,286 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 04:39:59,294 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-02 04:39:59,301 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-02 04:39:59,302 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 04:39:59,303 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:39:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-02 04:39:59,340 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 04:39:59,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-12-02 04:39:59,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 04:39:59,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 04:39:59,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-12-02 04:39:59,341 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2018-12-02 04:39:59,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:39:59,398 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-12-02 04:39:59,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 04:39:59,398 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-12-02 04:39:59,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:39:59,399 INFO L225 Difference]: With dead ends: 34 [2018-12-02 04:39:59,399 INFO L226 Difference]: Without dead ends: 30 [2018-12-02 04:39:59,399 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-12-02 04:39:59,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-02 04:39:59,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-12-02 04:39:59,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-02 04:39:59,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2018-12-02 04:39:59,402 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37 [2018-12-02 04:39:59,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:39:59,402 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2018-12-02 04:39:59,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 04:39:59,403 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2018-12-02 04:39:59,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-02 04:39:59,403 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:39:59,403 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:39:59,403 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:39:59,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:39:59,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1752970513, now seen corresponding path program 5 times [2018-12-02 04:39:59,404 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:39:59,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:39:59,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:59,404 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 04:39:59,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:39:59,543 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-02 04:39:59,543 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:39:59,543 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 04:39:59,551 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-12-02 04:39:59,563 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-12-02 04:39:59,563 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 04:39:59,565 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:39:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-02 04:39:59,609 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 04:39:59,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2018-12-02 04:39:59,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-02 04:39:59,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-02 04:39:59,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-12-02 04:39:59,610 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 15 states. [2018-12-02 04:39:59,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:39:59,663 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2018-12-02 04:39:59,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 04:39:59,664 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 43 [2018-12-02 04:39:59,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:39:59,665 INFO L225 Difference]: With dead ends: 37 [2018-12-02 04:39:59,665 INFO L226 Difference]: Without dead ends: 33 [2018-12-02 04:39:59,665 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-12-02 04:39:59,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-02 04:39:59,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-02 04:39:59,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-02 04:39:59,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2018-12-02 04:39:59,670 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43 [2018-12-02 04:39:59,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:39:59,670 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2018-12-02 04:39:59,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-02 04:39:59,670 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-12-02 04:39:59,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-02 04:39:59,671 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:39:59,671 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:39:59,672 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:39:59,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:39:59,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1590630787, now seen corresponding path program 6 times [2018-12-02 04:39:59,672 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:39:59,672 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:39:59,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:59,673 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 04:39:59,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:39:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:39:59,746 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-12-02 04:39:59,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:39:59,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-02 04:39:59,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 04:39:59,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 04:39:59,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-12-02 04:39:59,747 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 11 states. [2018-12-02 04:39:59,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:39:59,821 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2018-12-02 04:39:59,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 04:39:59,821 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2018-12-02 04:39:59,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:39:59,821 INFO L225 Difference]: With dead ends: 33 [2018-12-02 04:39:59,822 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 04:39:59,822 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=110, Invalid=196, Unknown=0, NotChecked=0, Total=306 [2018-12-02 04:39:59,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 04:39:59,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 04:39:59,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 04:39:59,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 04:39:59,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-12-02 04:39:59,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:39:59,823 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 04:39:59,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 04:39:59,823 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 04:39:59,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 04:39:59,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 04:39:59,838 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-02 04:39:59,838 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 04:39:59,839 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 04:39:59,839 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 04:39:59,839 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 04:39:59,839 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 04:39:59,839 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2018-12-02 04:39:59,839 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 9 15) the Hoare annotation is: true [2018-12-02 04:39:59,839 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 15) no Hoare annotation was computed. [2018-12-02 04:39:59,839 INFO L448 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-12-02 04:39:59,839 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 14) no Hoare annotation was computed. [2018-12-02 04:39:59,839 INFO L444 ceAbstractionStarter]: At program point L11(line 11) the Hoare annotation is: (and (<= main_~input~0 5) (<= 5 main_~input~0)) [2018-12-02 04:39:59,839 INFO L448 ceAbstractionStarter]: For program point L11-1(line 11) no Hoare annotation was computed. [2018-12-02 04:39:59,839 INFO L448 ceAbstractionStarter]: For program point L12-2(lines 9 15) no Hoare annotation was computed. [2018-12-02 04:39:59,840 INFO L448 ceAbstractionStarter]: For program point idFINAL(lines 4 7) no Hoare annotation was computed. [2018-12-02 04:39:59,840 INFO L448 ceAbstractionStarter]: For program point idEXIT(lines 4 7) no Hoare annotation was computed. [2018-12-02 04:39:59,840 INFO L451 ceAbstractionStarter]: At program point idENTRY(lines 4 7) the Hoare annotation is: true [2018-12-02 04:39:59,840 INFO L444 ceAbstractionStarter]: At program point L6(line 6) the Hoare annotation is: (and (<= |id_#in~x| id_~x) (<= id_~x |id_#in~x|)) [2018-12-02 04:39:59,840 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-02 04:39:59,840 INFO L448 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2018-12-02 04:39:59,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:39:59 BoogieIcfgContainer [2018-12-02 04:39:59,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 04:39:59,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 04:39:59,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 04:39:59,842 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 04:39:59,843 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:39:58" (3/4) ... [2018-12-02 04:39:59,846 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 04:39:59,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 04:39:59,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 04:39:59,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2018-12-02 04:39:59,854 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-02 04:39:59,855 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 04:39:59,855 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 04:39:59,882 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_faa16184-cd97-4902-8a6b-bb307bfa358b/bin-2019/uautomizer/witness.graphml [2018-12-02 04:39:59,882 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 04:39:59,882 INFO L168 Benchmark]: Toolchain (without parser) took 1645.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 957.1 MB in the beginning and 846.5 MB in the end (delta: 110.6 MB). Peak memory consumption was 227.5 MB. Max. memory is 11.5 GB. [2018-12-02 04:39:59,883 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:39:59,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.51 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 04:39:59,884 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.58 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:39:59,884 INFO L168 Benchmark]: Boogie Preprocessor took 11.04 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:39:59,884 INFO L168 Benchmark]: RCFGBuilder took 153.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-02 04:39:59,884 INFO L168 Benchmark]: TraceAbstraction took 1291.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 846.5 MB in the end (delta: 249.2 MB). Peak memory consumption was 249.2 MB. Max. memory is 11.5 GB. [2018-12-02 04:39:59,885 INFO L168 Benchmark]: Witness Printer took 39.53 ms. Allocated memory is still 1.1 GB. Free memory is still 846.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:39:59,886 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.51 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.58 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.04 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 153.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1291.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 846.5 MB in the end (delta: 249.2 MB). Peak memory consumption was 249.2 MB. Max. memory is 11.5 GB. * Witness Printer took 39.53 ms. Allocated memory is still 1.1 GB. Free memory is still 846.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 7 OverallIterations, 7 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 115 SDtfs, 62 SDslu, 562 SDs, 0 SdLazy, 286 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 178 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=6, 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 19 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 372 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 360 ConstructedInterpolants, 0 QuantifiedInterpolants, 32832 SizeOfPredicates, 19 NumberOfNonLiveVariables, 345 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 294/474 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...