./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/rule60_list.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/rule60_list.i -s /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 99300654c640d2c4f7b9514479be090401414cf7 ...................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:27:23,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:23,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:23,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:23,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:23,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:23,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:23,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:23,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:23,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:23,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:23,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:23,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:23,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:23,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:23,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:23,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:23,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:23,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:23,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:23,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:23,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:23,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:23,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:23,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:23,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:23,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:23,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:23,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:23,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:23,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:23,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:23,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:23,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:23,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:23,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:23,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:23,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:23,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:23,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:23,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:23,851 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:27:23,868 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:23,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:23,869 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:23,869 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:23,870 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:23,870 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:23,870 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:27:23,870 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:23,870 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:23,870 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:27:23,871 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:27:23,871 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:23,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:23,872 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:23,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:27:23,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:23,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:23,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:27:23,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:23,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:27:23,873 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:23,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:27:23,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:27:23,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:23,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:23,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:23,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:23,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:23,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:23,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:23,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:27:23,875 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:27:23,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:27:23,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:27:23,875 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:23,875 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99300654c640d2c4f7b9514479be090401414cf7 [2019-10-22 11:27:23,898 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:23,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:23,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:23,912 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:23,913 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:23,913 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan/../../sv-benchmarks/c/ldv-regression/rule60_list.i [2019-10-22 11:27:23,976 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan/data/c7be2971e/702dae2efa1c4a4da9965a309282952f/FLAG68bb49f47 [2019-10-22 11:27:24,400 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:24,401 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/sv-benchmarks/c/ldv-regression/rule60_list.i [2019-10-22 11:27:24,411 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan/data/c7be2971e/702dae2efa1c4a4da9965a309282952f/FLAG68bb49f47 [2019-10-22 11:27:24,422 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan/data/c7be2971e/702dae2efa1c4a4da9965a309282952f [2019-10-22 11:27:24,425 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:24,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:24,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:24,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:24,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:24,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:24" (1/1) ... [2019-10-22 11:27:24,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9071cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:24, skipping insertion in model container [2019-10-22 11:27:24,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:24" (1/1) ... [2019-10-22 11:27:24,442 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:24,489 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:24,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:24,924 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:24,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:25,025 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:25,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:25 WrapperNode [2019-10-22 11:27:25,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:25,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:25,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:25,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:25,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:25" (1/1) ... [2019-10-22 11:27:25,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:25" (1/1) ... [2019-10-22 11:27:25,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:25,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:25,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:25,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:25,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:25" (1/1) ... [2019-10-22 11:27:25,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:25" (1/1) ... [2019-10-22 11:27:25,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:25" (1/1) ... [2019-10-22 11:27:25,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:25" (1/1) ... [2019-10-22 11:27:25,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:25" (1/1) ... [2019-10-22 11:27:25,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:25" (1/1) ... [2019-10-22 11:27:25,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:25" (1/1) ... [2019-10-22 11:27:25,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:25,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:25,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:25,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:25,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:27:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:27:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:27:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:27:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 11:27:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:27:25,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:25,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:25,445 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:25,446 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-10-22 11:27:25,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:25 BoogieIcfgContainer [2019-10-22 11:27:25,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:25,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:25,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:25,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:25,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:24" (1/3) ... [2019-10-22 11:27:25,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484097c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:25, skipping insertion in model container [2019-10-22 11:27:25,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:25" (2/3) ... [2019-10-22 11:27:25,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484097c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:25, skipping insertion in model container [2019-10-22 11:27:25,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:25" (3/3) ... [2019-10-22 11:27:25,453 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list.i [2019-10-22 11:27:25,463 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:25,469 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:27:25,479 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:27:25,500 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:25,500 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:27:25,500 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:25,500 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:25,501 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:25,501 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:25,501 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:25,501 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:25,518 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-10-22 11:27:25,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:27:25,523 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:25,524 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:27:25,526 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:25,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:25,532 INFO L82 PathProgramCache]: Analyzing trace with hash 28693860, now seen corresponding path program 1 times [2019-10-22 11:27:25,540 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:25,541 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209683119] [2019-10-22 11:27:25,541 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:25,541 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:25,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:25,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209683119] [2019-10-22 11:27:25,813 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:25,815 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:25,816 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446327878] [2019-10-22 11:27:25,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:27:25,821 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:25,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:27:25,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:25,837 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2019-10-22 11:27:25,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:25,896 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2019-10-22 11:27:25,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:27:25,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-10-22 11:27:25,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:25,908 INFO L225 Difference]: With dead ends: 36 [2019-10-22 11:27:25,908 INFO L226 Difference]: Without dead ends: 14 [2019-10-22 11:27:25,911 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:25,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-22 11:27:25,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-22 11:27:25,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-22 11:27:25,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2019-10-22 11:27:25,943 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 5 [2019-10-22 11:27:25,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:25,944 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2019-10-22 11:27:25,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:27:25,944 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2019-10-22 11:27:25,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:27:25,944 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:25,945 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:25,945 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:25,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:25,945 INFO L82 PathProgramCache]: Analyzing trace with hash 118581514, now seen corresponding path program 1 times [2019-10-22 11:27:25,946 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:25,946 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882219455] [2019-10-22 11:27:25,946 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:25,946 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:25,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:26,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:26,072 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882219455] [2019-10-22 11:27:26,073 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:26,073 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:27:26,073 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343517793] [2019-10-22 11:27:26,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:27:26,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:26,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:27:26,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:27:26,075 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 7 states. [2019-10-22 11:27:26,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:26,161 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2019-10-22 11:27:26,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:27:26,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-10-22 11:27:26,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:26,162 INFO L225 Difference]: With dead ends: 14 [2019-10-22 11:27:26,162 INFO L226 Difference]: Without dead ends: 12 [2019-10-22 11:27:26,163 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:27:26,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-22 11:27:26,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-22 11:27:26,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-22 11:27:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-10-22 11:27:26,165 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 8 [2019-10-22 11:27:26,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:26,165 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-10-22 11:27:26,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:27:26,165 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-10-22 11:27:26,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:27:26,166 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:26,166 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:26,166 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:26,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:26,167 INFO L82 PathProgramCache]: Analyzing trace with hash -2097897967, now seen corresponding path program 1 times [2019-10-22 11:27:26,167 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:26,167 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670360644] [2019-10-22 11:27:26,167 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:26,167 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:26,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:26,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:26,341 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670360644] [2019-10-22 11:27:26,342 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:26,342 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:27:26,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717585859] [2019-10-22 11:27:26,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:27:26,343 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:26,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:27:26,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:27:26,343 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 7 states. [2019-10-22 11:27:26,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:26,429 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-10-22 11:27:26,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:27:26,429 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-10-22 11:27:26,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:26,429 INFO L225 Difference]: With dead ends: 12 [2019-10-22 11:27:26,429 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:27:26,430 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:27:26,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:27:26,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:27:26,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:27:26,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:27:26,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-10-22 11:27:26,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:26,431 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:27:26,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:27:26,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:27:26,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:27:26,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:27:26,452 INFO L443 ceAbstractionStarter]: For program point L867-2(line 867) no Hoare annotation was computed. [2019-10-22 11:27:26,452 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:27:26,452 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-22 11:27:26,452 INFO L443 ceAbstractionStarter]: For program point L872(line 872) no Hoare annotation was computed. [2019-10-22 11:27:26,453 INFO L443 ceAbstractionStarter]: For program point L866(lines 866 869) no Hoare annotation was computed. [2019-10-22 11:27:26,453 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:27:26,453 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:27:26,453 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:27:26,453 INFO L439 ceAbstractionStarter]: At program point L887(lines 878 888) the Hoare annotation is: (and (= |~#head~0.offset| ULTIMATE.start_main_~dev~0.offset) (<= |~#head~0.offset| 0) (<= 0 |~#head~0.offset|)) [2019-10-22 11:27:26,454 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-22 11:27:26,454 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-22 11:27:26,454 INFO L443 ceAbstractionStarter]: For program point L881(lines 881 886) no Hoare annotation was computed. [2019-10-22 11:27:26,454 INFO L443 ceAbstractionStarter]: For program point L881-1(lines 881 886) no Hoare annotation was computed. [2019-10-22 11:27:26,454 INFO L443 ceAbstractionStarter]: For program point L871(lines 871 874) no Hoare annotation was computed. [2019-10-22 11:27:26,454 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-10-22 11:27:26,454 INFO L443 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-10-22 11:27:26,454 INFO L443 ceAbstractionStarter]: For program point L4(lines 1 888) no Hoare annotation was computed. [2019-10-22 11:27:26,455 INFO L443 ceAbstractionStarter]: For program point L6-2(line 6) no Hoare annotation was computed. [2019-10-22 11:27:26,455 INFO L443 ceAbstractionStarter]: For program point L867(line 867) no Hoare annotation was computed. [2019-10-22 11:27:26,455 INFO L443 ceAbstractionStarter]: For program point L4-1(lines 1 888) no Hoare annotation was computed. [2019-10-22 11:27:26,455 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 1 888) no Hoare annotation was computed. [2019-10-22 11:27:26,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:27:26 BoogieIcfgContainer [2019-10-22 11:27:26,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:27:26,469 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:27:26,469 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:27:26,469 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:27:26,470 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:25" (3/4) ... [2019-10-22 11:27:26,474 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:27:26,490 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-10-22 11:27:26,490 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 11:27:26,540 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_580b327d-fd2b-42bb-820d-9ebe08127f1b/bin/utaipan/witness.graphml [2019-10-22 11:27:26,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:27:26,542 INFO L168 Benchmark]: Toolchain (without parser) took 2116.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 934.3 MB in the beginning and 996.9 MB in the end (delta: -62.6 MB). Peak memory consumption was 74.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:26,543 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:26,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 934.3 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:26,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:26,544 INFO L168 Benchmark]: Boogie Preprocessor took 27.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:26,545 INFO L168 Benchmark]: RCFGBuilder took 344.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:26,546 INFO L168 Benchmark]: TraceAbstraction took 1021.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.9 MB in the end (delta: 88.1 MB). Peak memory consumption was 88.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:26,546 INFO L168 Benchmark]: Witness Printer took 71.14 ms. Allocated memory is still 1.2 GB. Free memory is still 996.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:26,548 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 599.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 934.3 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 344.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1021.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.9 MB in the end (delta: 88.1 MB). Peak memory consumption was 88.1 MB. Max. memory is 11.5 GB. * Witness Printer took 71.14 ms. Allocated memory is still 1.2 GB. Free memory is still 996.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: (head == dev && head <= 0) && 0 <= head - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 3 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 75 SDslu, 23 SDs, 0 SdLazy, 46 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 10 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 1468 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...