./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i --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_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/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 0322173b3e50156a3157d6284ff4dd2480f2ac8d ................................................................................................................................................................................................................................................................................................................................................................ 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 12:19:17,037 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 12:19:17,038 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 12:19:17,046 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 12:19:17,046 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 12:19:17,047 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 12:19:17,048 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 12:19:17,049 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 12:19:17,050 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 12:19:17,050 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 12:19:17,051 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 12:19:17,051 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 12:19:17,052 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 12:19:17,052 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 12:19:17,053 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 12:19:17,054 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 12:19:17,054 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 12:19:17,055 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 12:19:17,057 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 12:19:17,058 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 12:19:17,059 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 12:19:17,059 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 12:19:17,061 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 12:19:17,061 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 12:19:17,062 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 12:19:17,062 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 12:19:17,063 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 12:19:17,063 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 12:19:17,064 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 12:19:17,065 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 12:19:17,065 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 12:19:17,066 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 12:19:17,066 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 12:19:17,066 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 12:19:17,066 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 12:19:17,067 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 12:19:17,067 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 12:19:17,078 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 12:19:17,078 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 12:19:17,078 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 12:19:17,079 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 12:19:17,079 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 12:19:17,079 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 12:19:17,079 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 12:19:17,079 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 12:19:17,079 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 12:19:17,079 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 12:19:17,079 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 12:19:17,080 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 12:19:17,080 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 12:19:17,080 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 12:19:17,080 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 12:19:17,080 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 12:19:17,080 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 12:19:17,081 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 12:19:17,081 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 12:19:17,081 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 12:19:17,081 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 12:19:17,081 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 12:19:17,081 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 12:19:17,081 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 12:19:17,082 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 12:19:17,082 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 12:19:17,082 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 12:19:17,082 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 12:19:17,082 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 12:19:17,082 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 12:19:17,082 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 12:19:17,082 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 12:19:17,082 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 12:19:17,082 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 12:19:17,082 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 12:19:17,082 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 12:19:17,082 INFO L133 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_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/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 -> 0322173b3e50156a3157d6284ff4dd2480f2ac8d [2018-12-02 12:19:17,105 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 12:19:17,114 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 12:19:17,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 12:19:17,118 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 12:19:17,118 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 12:19:17,118 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/utaipan/../../sv-benchmarks/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i [2018-12-02 12:19:17,160 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/utaipan/data/f6bbc6517/fca4f9b144114fd8946bc41284cb0317/FLAG8034bbf32 [2018-12-02 12:19:17,546 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 12:19:17,546 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/sv-benchmarks/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i [2018-12-02 12:19:17,549 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/utaipan/data/f6bbc6517/fca4f9b144114fd8946bc41284cb0317/FLAG8034bbf32 [2018-12-02 12:19:17,558 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/utaipan/data/f6bbc6517/fca4f9b144114fd8946bc41284cb0317 [2018-12-02 12:19:17,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 12:19:17,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 12:19:17,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 12:19:17,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 12:19:17,564 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 12:19:17,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:19:17" (1/1) ... [2018-12-02 12:19:17,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c0e1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:17, skipping insertion in model container [2018-12-02 12:19:17,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:19:17" (1/1) ... [2018-12-02 12:19:17,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 12:19:17,585 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 12:19:17,673 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:19:17,680 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 12:19:17,690 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:19:17,698 INFO L195 MainTranslator]: Completed translation [2018-12-02 12:19:17,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:17 WrapperNode [2018-12-02 12:19:17,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 12:19:17,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 12:19:17,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 12:19:17,699 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 12:19:17,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:17" (1/1) ... [2018-12-02 12:19:17,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:17" (1/1) ... [2018-12-02 12:19:17,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 12:19:17,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 12:19:17,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 12:19:17,713 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 12:19:17,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:17" (1/1) ... [2018-12-02 12:19:17,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:17" (1/1) ... [2018-12-02 12:19:17,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:17" (1/1) ... [2018-12-02 12:19:17,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:17" (1/1) ... [2018-12-02 12:19:17,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:17" (1/1) ... [2018-12-02 12:19:17,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:17" (1/1) ... [2018-12-02 12:19:17,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:17" (1/1) ... [2018-12-02 12:19:17,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 12:19:17,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 12:19:17,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 12:19:17,761 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 12:19:17,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/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 [2018-12-02 12:19:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 12:19:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 12:19:17,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 12:19:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 12:19:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2018-12-02 12:19:17,793 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2018-12-02 12:19:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 12:19:17,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 12:19:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 12:19:17,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 12:19:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-02 12:19:17,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-02 12:19:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 12:19:17,887 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 12:19:17,887 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 12:19:17,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:19:17 BoogieIcfgContainer [2018-12-02 12:19:17,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 12:19:17,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 12:19:17,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 12:19:17,890 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 12:19:17,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:19:17" (1/3) ... [2018-12-02 12:19:17,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f410f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:19:17, skipping insertion in model container [2018-12-02 12:19:17,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:17" (2/3) ... [2018-12-02 12:19:17,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f410f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:19:17, skipping insertion in model container [2018-12-02 12:19:17,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:19:17" (3/3) ... [2018-12-02 12:19:17,891 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i [2018-12-02 12:19:17,897 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 12:19:17,902 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 12:19:17,910 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 12:19:17,927 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 12:19:17,927 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 12:19:17,927 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 12:19:17,928 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 12:19:17,928 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 12:19:17,928 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 12:19:17,928 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 12:19:17,928 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 12:19:17,937 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-12-02 12:19:17,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 12:19:17,940 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:19:17,941 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:19:17,942 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:19:17,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:19:17,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1626450083, now seen corresponding path program 1 times [2018-12-02 12:19:17,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:19:17,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:19:17,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:19:17,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:19:17,974 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:19:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:19:18,097 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 12:19:18,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:19:18,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 12:19:18,098 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 12:19:18,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 12:19:18,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 12:19:18,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 12:19:18,109 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 7 states. [2018-12-02 12:19:18,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:19:18,194 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2018-12-02 12:19:18,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 12:19:18,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-12-02 12:19:18,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:19:18,200 INFO L225 Difference]: With dead ends: 55 [2018-12-02 12:19:18,200 INFO L226 Difference]: Without dead ends: 26 [2018-12-02 12:19:18,202 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-12-02 12:19:18,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-02 12:19:18,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2018-12-02 12:19:18,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-02 12:19:18,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-12-02 12:19:18,224 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2018-12-02 12:19:18,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:19:18,224 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-12-02 12:19:18,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 12:19:18,224 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-12-02 12:19:18,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 12:19:18,225 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:19:18,225 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:19:18,225 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:19:18,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:19:18,226 INFO L82 PathProgramCache]: Analyzing trace with hash -519824651, now seen corresponding path program 1 times [2018-12-02 12:19:18,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:19:18,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:19:18,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:19:18,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:19:18,227 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:19:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:19:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 12:19:18,312 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:19:18,312 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 12:19:18,313 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-12-02 12:19:18,314 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [10], [12], [14], [23], [27], [30], [32], [35], [37], [38], [39], [40], [41], [42], [44] [2018-12-02 12:19:18,334 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 12:19:18,334 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 12:19:18,421 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 12:19:18,422 INFO L272 AbstractInterpreter]: Visited 18 different actions 18 times. Never merged. Never widened. Performed 122 root evaluator evaluations with a maximum evaluation depth of 5. Performed 122 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-12-02 12:19:18,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:19:18,430 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 12:19:18,430 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:19:18,431 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/utaipan/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 12:19:18,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:19:18,437 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 12:19:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:19:18,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:19:18,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:19:18,550 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 12:19:18,654 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:19:18,669 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 12:19:18,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 18 [2018-12-02 12:19:18,670 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 12:19:18,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-02 12:19:18,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-02 12:19:18,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2018-12-02 12:19:18,671 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 14 states. [2018-12-02 12:19:18,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:19:18,805 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-12-02 12:19:18,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 12:19:18,805 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2018-12-02 12:19:18,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:19:18,805 INFO L225 Difference]: With dead ends: 27 [2018-12-02 12:19:18,806 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 12:19:18,806 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 30 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2018-12-02 12:19:18,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 12:19:18,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 12:19:18,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 12:19:18,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 12:19:18,807 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-12-02 12:19:18,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:19:18,807 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 12:19:18,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-02 12:19:18,807 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 12:19:18,807 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 12:19:18,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 12:19:18,887 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 12:19:18,887 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 12:19:18,887 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 12:19:18,887 INFO L451 ceAbstractionStarter]: At program point glob2ENTRY(lines 14 25) the Hoare annotation is: true [2018-12-02 12:19:18,888 INFO L448 ceAbstractionStarter]: For program point glob2EXIT(lines 14 25) no Hoare annotation was computed. [2018-12-02 12:19:18,888 INFO L444 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (or (< ~tmp~0.offset 4) (not (= 0 |glob2_#in~pathbuf.offset|)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (< ~tmp~0.offset |glob2_#in~pathlim.offset|) (and (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base))) [2018-12-02 12:19:18,888 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-12-02 12:19:18,888 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2018-12-02 12:19:18,888 INFO L444 ceAbstractionStarter]: At program point L18-3(lines 18 22) the Hoare annotation is: (or (< ~tmp~0.offset 4) (and (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base)) (not (= 0 |glob2_#in~pathbuf.offset|)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (< ~tmp~0.offset |glob2_#in~pathlim.offset|)) [2018-12-02 12:19:18,888 INFO L448 ceAbstractionStarter]: For program point L18-4(lines 18 22) no Hoare annotation was computed. [2018-12-02 12:19:18,888 INFO L448 ceAbstractionStarter]: For program point glob2FINAL(lines 14 25) no Hoare annotation was computed. [2018-12-02 12:19:18,888 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 12:19:18,888 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 12:19:18,888 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 12:19:18,888 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 12:19:18,888 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 27 38) the Hoare annotation is: true [2018-12-02 12:19:18,888 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 27 38) no Hoare annotation was computed. [2018-12-02 12:19:18,889 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 27 38) no Hoare annotation was computed. [2018-12-02 12:19:18,889 INFO L444 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (<= main_~bound~0.offset ~tmp~0.offset) (= |main_~#pathbuf~0.offset| 0)) [2018-12-02 12:19:18,889 INFO L448 ceAbstractionStarter]: For program point L35-1(line 35) no Hoare annotation was computed. [2018-12-02 12:19:18,889 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-12-02 12:19:18,889 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-02 12:19:18,889 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-12-02 12:19:18,889 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-02 12:19:18,889 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-02 12:19:18,889 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-12-02 12:19:18,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:19:18 BoogieIcfgContainer [2018-12-02 12:19:18,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 12:19:18,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 12:19:18,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 12:19:18,897 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 12:19:18,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:19:17" (3/4) ... [2018-12-02 12:19:18,899 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 12:19:18,903 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 12:19:18,903 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure glob2 [2018-12-02 12:19:18,903 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 12:19:18,903 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-02 12:19:18,905 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-02 12:19:18,906 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 12:19:18,906 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 12:19:18,930 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0aaaedc6-8786-4360-ac4b-0d9d3c0f678c/bin-2019/utaipan/witness.graphml [2018-12-02 12:19:18,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 12:19:18,931 INFO L168 Benchmark]: Toolchain (without parser) took 1370.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 957.1 MB in the beginning and 896.8 MB in the end (delta: 60.3 MB). Peak memory consumption was 153.6 MB. Max. memory is 11.5 GB. [2018-12-02 12:19:18,932 INFO L168 Benchmark]: CDTParser took 0.14 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 12:19:18,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.36 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 945.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-02 12:19:18,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.53 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:19:18,933 INFO L168 Benchmark]: Boogie Preprocessor took 47.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -143.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-12-02 12:19:18,933 INFO L168 Benchmark]: RCFGBuilder took 126.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-02 12:19:18,933 INFO L168 Benchmark]: TraceAbstraction took 1009.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 896.8 MB in the end (delta: 177.3 MB). Peak memory consumption was 177.3 MB. Max. memory is 11.5 GB. [2018-12-02 12:19:18,934 INFO L168 Benchmark]: Witness Printer took 33.69 ms. Allocated memory is still 1.1 GB. Free memory is still 896.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:19:18,935 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 137.36 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 945.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.53 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -143.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 126.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1009.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 896.8 MB in the end (delta: 177.3 MB). Peak memory consumption was 177.3 MB. Max. memory is 11.5 GB. * Witness Printer took 33.69 ms. Allocated memory is still 1.1 GB. Free memory is still 896.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (((tmp < 4 || (pathlim <= tmp && tmp == p)) || !(0 == pathbuf)) || !(tmp == pathbuf)) || tmp < pathlim - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 26 SDtfs, 42 SDslu, 139 SDs, 0 SdLazy, 158 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 32 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 72 HoareAnnotationTreeSize, 11 FomulaSimplifications, 63 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 121 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 6308 SizeOfPredicates, 8 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 4/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...