./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-invgen/MADWiFi-encode_ie_ok_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loop-invgen/MADWiFi-encode_ie_ok_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77e92a11a4549a6f714898b45c2d349723607a29 ................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:20:27,743 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:20:27,745 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:20:27,757 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:20:27,758 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:20:27,759 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:20:27,761 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:20:27,763 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:20:27,765 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:20:27,765 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:20:27,767 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:20:27,767 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:20:27,768 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:20:27,770 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:20:27,771 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:20:27,772 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:20:27,773 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:20:27,775 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:20:27,777 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:20:27,779 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:20:27,781 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:20:27,782 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:20:27,785 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:20:27,786 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:20:27,786 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:20:27,787 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:20:27,788 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:20:27,789 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:20:27,790 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:20:27,792 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:20:27,792 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:20:27,793 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:20:27,793 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:20:27,794 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:20:27,795 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:20:27,796 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:20:27,797 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:20:27,814 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:20:27,814 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:20:27,815 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:20:27,816 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:20:27,816 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:20:27,816 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:20:27,817 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:20:27,819 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:20:27,819 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:20:27,819 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:20:27,819 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:20:27,820 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:20:27,820 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:20:27,820 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:20:27,820 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:20:27,820 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:20:27,821 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:20:27,821 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:20:27,821 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:20:27,821 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:20:27,821 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:20:27,822 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:20:27,827 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:20:27,827 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:20:27,827 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:20:27,828 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:20:27,828 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:20:27,828 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:20:27,828 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:20:27,828 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:20:27,828 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77e92a11a4549a6f714898b45c2d349723607a29 [2018-11-28 18:20:27,873 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:20:27,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:20:27,890 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:20:27,892 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:20:27,892 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:20:27,893 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-invgen/MADWiFi-encode_ie_ok_true-unreach-call_true-termination.i [2018-11-28 18:20:27,952 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2fa619fd/b44a885d6c524928ae55b62aa1eff743/FLAG507a6cf9a [2018-11-28 18:20:28,436 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:20:28,437 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-invgen/MADWiFi-encode_ie_ok_true-unreach-call_true-termination.i [2018-11-28 18:20:28,446 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2fa619fd/b44a885d6c524928ae55b62aa1eff743/FLAG507a6cf9a [2018-11-28 18:20:28,774 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2fa619fd/b44a885d6c524928ae55b62aa1eff743 [2018-11-28 18:20:28,778 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:20:28,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:20:28,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:20:28,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:20:28,786 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:20:28,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:20:28" (1/1) ... [2018-11-28 18:20:28,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d80e72b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:28, skipping insertion in model container [2018-11-28 18:20:28,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:20:28" (1/1) ... [2018-11-28 18:20:28,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:20:28,818 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:20:29,006 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:20:29,011 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:20:29,033 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:20:29,050 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:20:29,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:29 WrapperNode [2018-11-28 18:20:29,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:20:29,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:20:29,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:20:29,053 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:20:29,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:29" (1/1) ... [2018-11-28 18:20:29,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:29" (1/1) ... [2018-11-28 18:20:29,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:20:29,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:20:29,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:20:29,079 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:20:29,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:29" (1/1) ... [2018-11-28 18:20:29,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:29" (1/1) ... [2018-11-28 18:20:29,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:29" (1/1) ... [2018-11-28 18:20:29,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:29" (1/1) ... [2018-11-28 18:20:29,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:29" (1/1) ... [2018-11-28 18:20:29,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:29" (1/1) ... [2018-11-28 18:20:29,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:29" (1/1) ... [2018-11-28 18:20:29,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:20:29,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:20:29,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:20:29,108 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:20:29,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:20:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:20:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:20:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:20:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:20:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:20:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:20:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 18:20:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 18:20:29,705 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:20:29,705 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 18:20:29,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:20:29 BoogieIcfgContainer [2018-11-28 18:20:29,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:20:29,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:20:29,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:20:29,710 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:20:29,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:20:28" (1/3) ... [2018-11-28 18:20:29,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bae5523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:20:29, skipping insertion in model container [2018-11-28 18:20:29,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:29" (2/3) ... [2018-11-28 18:20:29,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bae5523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:20:29, skipping insertion in model container [2018-11-28 18:20:29,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:20:29" (3/3) ... [2018-11-28 18:20:29,715 INFO L112 eAbstractionObserver]: Analyzing ICFG MADWiFi-encode_ie_ok_true-unreach-call_true-termination.i [2018-11-28 18:20:29,732 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:20:29,741 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:20:29,759 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:20:29,794 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:20:29,795 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:20:29,795 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:20:29,795 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:20:29,796 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:20:29,796 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:20:29,796 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:20:29,796 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:20:29,796 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:20:29,821 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-28 18:20:29,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 18:20:29,828 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:20:29,829 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:20:29,831 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:20:29,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:20:29,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1770779542, now seen corresponding path program 1 times [2018-11-28 18:20:29,841 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:20:29,841 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:20:29,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:29,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:20:29,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:30,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:30,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:20:30,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:20:30,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:20:30,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:20:30,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:20:30,156 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 6 states. [2018-11-28 18:20:30,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:20:30,374 INFO L93 Difference]: Finished difference Result 51 states and 67 transitions. [2018-11-28 18:20:30,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 18:20:30,376 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-11-28 18:20:30,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:20:30,383 INFO L225 Difference]: With dead ends: 51 [2018-11-28 18:20:30,383 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 18:20:30,387 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:20:30,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 18:20:30,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-28 18:20:30,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 18:20:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-28 18:20:30,426 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 18 [2018-11-28 18:20:30,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:20:30,427 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-28 18:20:30,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:20:30,427 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-28 18:20:30,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 18:20:30,428 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:20:30,429 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:20:30,429 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:20:30,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:20:30,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1769173835, now seen corresponding path program 1 times [2018-11-28 18:20:30,430 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:20:30,430 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:20:30,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:30,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:20:30,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:30,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:30,807 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:20:30,808 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 18:20:30,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:20:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:30,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:20:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:30,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 18:20:30,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-11-28 18:20:30,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 18:20:30,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 18:20:30,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-28 18:20:30,989 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 9 states. [2018-11-28 18:20:31,253 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 6 [2018-11-28 18:20:31,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:20:31,376 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2018-11-28 18:20:31,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:20:31,377 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-11-28 18:20:31,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:20:31,380 INFO L225 Difference]: With dead ends: 38 [2018-11-28 18:20:31,380 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 18:20:31,381 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-11-28 18:20:31,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 18:20:31,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2018-11-28 18:20:31,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 18:20:31,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2018-11-28 18:20:31,394 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 23 [2018-11-28 18:20:31,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:20:31,395 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2018-11-28 18:20:31,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 18:20:31,395 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2018-11-28 18:20:31,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 18:20:31,398 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:20:31,398 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:20:31,398 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:20:31,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:20:31,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1089945877, now seen corresponding path program 1 times [2018-11-28 18:20:31,399 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:20:31,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:20:31,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:31,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:20:31,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:31,591 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-28 18:20:31,592 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:20:31,592 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 18:20:31,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:20:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:31,640 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:20:32,158 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 18:20:32,184 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:20:32,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2018-11-28 18:20:32,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 18:20:32,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 18:20:32,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-11-28 18:20:32,186 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 14 states. [2018-11-28 18:20:32,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:20:32,713 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-11-28 18:20:32,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 18:20:32,713 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 36 [2018-11-28 18:20:32,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:20:32,714 INFO L225 Difference]: With dead ends: 41 [2018-11-28 18:20:32,714 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:20:32,716 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-11-28 18:20:32,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:20:32,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:20:32,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:20:32,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:20:32,717 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-11-28 18:20:32,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:20:32,718 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:20:32,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 18:20:32,718 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:20:32,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:20:32,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:20:32,919 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 18:20:32,919 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:20:32,920 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:20:32,920 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:20:32,920 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:20:32,920 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:20:32,920 INFO L448 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2018-11-28 18:20:32,920 INFO L444 ceAbstractionStarter]: At program point L35-3(lines 35 39) the Hoare annotation is: (and (<= (+ main_~p~0 (* 2 main_~ielen~0)) (+ main_~bufsize_0~0 (* 2 main_~i~0))) (<= 1 main_~leader_len~0) (<= 1 main_~p~0)) [2018-11-28 18:20:32,921 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 42) no Hoare annotation was computed. [2018-11-28 18:20:32,921 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-28 18:20:32,921 INFO L451 ceAbstractionStarter]: At program point L40(lines 10 42) the Hoare annotation is: true [2018-11-28 18:20:32,921 INFO L444 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (and (<= (+ main_~p~0 (* 2 main_~ielen~0)) (+ main_~bufsize_0~0 (* 2 main_~i~0))) (<= 1 main_~leader_len~0) (<= (+ main_~p~0 2) main_~bufsize_0~0) (<= 1 main_~p~0)) [2018-11-28 18:20:32,921 INFO L444 ceAbstractionStarter]: At program point L36-1(line 36) the Hoare annotation is: (and (<= (+ main_~p~0 (* 2 main_~ielen~0)) (+ main_~bufsize_0~0 (* 2 main_~i~0))) (<= 1 main_~leader_len~0) (<= (+ main_~p~0 2) main_~bufsize_0~0) (<= 1 main_~p~0)) [2018-11-28 18:20:32,921 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-28 18:20:32,921 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 11 42) no Hoare annotation was computed. [2018-11-28 18:20:32,922 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-28 18:20:32,922 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 34) no Hoare annotation was computed. [2018-11-28 18:20:32,922 INFO L448 ceAbstractionStarter]: For program point L25(lines 11 42) no Hoare annotation was computed. [2018-11-28 18:20:32,922 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-28 18:20:32,922 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 42) the Hoare annotation is: true [2018-11-28 18:20:32,922 INFO L448 ceAbstractionStarter]: For program point L26(lines 11 42) no Hoare annotation was computed. [2018-11-28 18:20:32,922 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-28 18:20:32,923 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-28 18:20:32,923 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-28 18:20:32,923 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-28 18:20:32,923 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-28 18:20:32,923 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-28 18:20:32,923 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-28 18:20:32,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:20:32 BoogieIcfgContainer [2018-11-28 18:20:32,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:20:32,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:20:32,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:20:32,937 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:20:32,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:20:29" (3/4) ... [2018-11-28 18:20:32,941 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:20:32,947 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:20:32,947 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:20:32,948 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 18:20:32,952 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 18:20:32,952 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 18:20:32,952 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:20:33,012 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:20:33,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:20:33,016 INFO L168 Benchmark]: Toolchain (without parser) took 4236.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 943.3 MB in the beginning and 973.0 MB in the end (delta: -29.7 MB). Peak memory consumption was 111.9 MB. Max. memory is 11.5 GB. [2018-11-28 18:20:33,017 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:20:33,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.43 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 931.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:20:33,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.17 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:20:33,021 INFO L168 Benchmark]: Boogie Preprocessor took 28.76 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:20:33,021 INFO L168 Benchmark]: RCFGBuilder took 598.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-11-28 18:20:33,023 INFO L168 Benchmark]: TraceAbstraction took 3230.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.0 MB in the end (delta: 144.3 MB). Peak memory consumption was 144.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:20:33,024 INFO L168 Benchmark]: Witness Printer took 77.49 ms. Allocated memory is still 1.2 GB. Free memory is still 973.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:20:33,033 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.43 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 931.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.17 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.76 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 598.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3230.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.0 MB in the end (delta: 144.3 MB). Peak memory consumption was 144.3 MB. Max. memory is 11.5 GB. * Witness Printer took 77.49 ms. Allocated memory is still 1.2 GB. Free memory is still 973.0 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (p + 2 * ielen <= bufsize_0 + 2 * i && 1 <= leader_len) && 1 <= p - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 71 SDtfs, 44 SDslu, 360 SDs, 0 SdLazy, 261 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 16 PreInvPairs, 28 NumberOfFragments, 70 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 156 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 10924 SizeOfPredicates, 10 NumberOfNonLiveVariables, 140 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 33/46 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...