./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f 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/NetBSD_loop_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 ca707ecc133af2ec0063556d89a3ce449d0860eb .......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 11:17:21,731 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 11:17:21,733 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 11:17:21,744 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 11:17:21,745 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 11:17:21,746 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 11:17:21,747 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 11:17:21,749 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 11:17:21,751 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 11:17:21,752 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 11:17:21,753 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 11:17:21,753 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 11:17:21,754 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 11:17:21,755 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 11:17:21,756 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 11:17:21,757 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 11:17:21,758 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 11:17:21,760 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 11:17:21,762 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 11:17:21,767 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 11:17:21,768 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 11:17:21,772 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 11:17:21,774 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 11:17:21,775 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 11:17:21,775 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 11:17:21,776 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 11:17:21,777 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 11:17:21,777 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 11:17:21,778 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 11:17:21,779 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 11:17:21,779 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 11:17:21,780 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 11:17:21,780 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 11:17:21,780 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 11:17:21,781 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 11:17:21,782 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 11:17:21,782 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 11:17:21,809 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 11:17:21,810 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 11:17:21,812 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 11:17:21,813 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 11:17:21,813 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 11:17:21,813 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 11:17:21,814 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 11:17:21,814 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 11:17:21,814 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 11:17:21,814 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 11:17:21,814 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 11:17:21,814 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 11:17:21,815 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 11:17:21,816 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 11:17:21,816 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 11:17:21,817 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 11:17:21,817 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 11:17:21,817 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 11:17:21,817 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 11:17:21,818 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 11:17:21,820 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 11:17:21,820 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 11:17:21,820 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 11:17:21,820 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 11:17:21,820 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 11:17:21,821 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 11:17:21,821 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 11:17:21,821 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 11:17:21,821 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 -> ca707ecc133af2ec0063556d89a3ce449d0860eb [2019-01-12 11:17:21,879 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 11:17:21,894 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 11:17:21,903 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 11:17:21,904 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 11:17:21,904 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 11:17:21,905 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i [2019-01-12 11:17:21,966 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1017d81c/66a5fef4b1ed49cda1915e54fd11c8bb/FLAGe48a410c7 [2019-01-12 11:17:22,424 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 11:17:22,425 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i [2019-01-12 11:17:22,432 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1017d81c/66a5fef4b1ed49cda1915e54fd11c8bb/FLAGe48a410c7 [2019-01-12 11:17:22,750 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1017d81c/66a5fef4b1ed49cda1915e54fd11c8bb [2019-01-12 11:17:22,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 11:17:22,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 11:17:22,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 11:17:22,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 11:17:22,760 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 11:17:22,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 11:17:22" (1/1) ... [2019-01-12 11:17:22,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b49fd9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:17:22, skipping insertion in model container [2019-01-12 11:17:22,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 11:17:22" (1/1) ... [2019-01-12 11:17:22,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 11:17:22,790 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 11:17:22,953 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 11:17:22,957 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 11:17:22,971 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 11:17:22,987 INFO L195 MainTranslator]: Completed translation [2019-01-12 11:17:22,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:17:22 WrapperNode [2019-01-12 11:17:22,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 11:17:22,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 11:17:22,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 11:17:22,989 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 11:17:22,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:17:22" (1/1) ... [2019-01-12 11:17:23,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:17:22" (1/1) ... [2019-01-12 11:17:23,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 11:17:23,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 11:17:23,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 11:17:23,020 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 11:17:23,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:17:22" (1/1) ... [2019-01-12 11:17:23,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:17:22" (1/1) ... [2019-01-12 11:17:23,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:17:22" (1/1) ... [2019-01-12 11:17:23,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:17:22" (1/1) ... [2019-01-12 11:17:23,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:17:22" (1/1) ... [2019-01-12 11:17:23,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:17:22" (1/1) ... [2019-01-12 11:17:23,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:17:22" (1/1) ... [2019-01-12 11:17:23,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 11:17:23,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 11:17:23,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 11:17:23,039 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 11:17:23,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:17:22" (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 [2019-01-12 11:17:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 11:17:23,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 11:17:23,419 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 11:17:23,419 INFO L286 CfgBuilder]: Removed 9 assue(true) statements. [2019-01-12 11:17:23,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:17:23 BoogieIcfgContainer [2019-01-12 11:17:23,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 11:17:23,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 11:17:23,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 11:17:23,434 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 11:17:23,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 11:17:22" (1/3) ... [2019-01-12 11:17:23,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c69880b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 11:17:23, skipping insertion in model container [2019-01-12 11:17:23,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:17:22" (2/3) ... [2019-01-12 11:17:23,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c69880b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 11:17:23, skipping insertion in model container [2019-01-12 11:17:23,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:17:23" (3/3) ... [2019-01-12 11:17:23,445 INFO L112 eAbstractionObserver]: Analyzing ICFG NetBSD_loop_true-unreach-call_true-termination.i [2019-01-12 11:17:23,460 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 11:17:23,470 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-01-12 11:17:23,495 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-01-12 11:17:23,528 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 11:17:23,529 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 11:17:23,530 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 11:17:23,530 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 11:17:23,530 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 11:17:23,530 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 11:17:23,530 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 11:17:23,530 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 11:17:23,530 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 11:17:23,546 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-01-12 11:17:23,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-12 11:17:23,551 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:17:23,552 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-12 11:17:23,555 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:17:23,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:17:23,561 INFO L82 PathProgramCache]: Analyzing trace with hash 920081230, now seen corresponding path program 1 times [2019-01-12 11:17:23,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:17:23,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:17:23,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:17:23,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:17:23,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:17:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:17:23,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:17:23,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 11:17:23,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 11:17:23,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-12 11:17:23,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-12 11:17:23,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-12 11:17:23,750 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2019-01-12 11:17:24,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:17:24,043 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2019-01-12 11:17:24,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-12 11:17:24,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-01-12 11:17:24,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:17:24,055 INFO L225 Difference]: With dead ends: 31 [2019-01-12 11:17:24,056 INFO L226 Difference]: Without dead ends: 10 [2019-01-12 11:17:24,059 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-12 11:17:24,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-01-12 11:17:24,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-01-12 11:17:24,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-12 11:17:24,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-01-12 11:17:24,096 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2019-01-12 11:17:24,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:17:24,097 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-01-12 11:17:24,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-12 11:17:24,097 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-01-12 11:17:24,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-12 11:17:24,098 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:17:24,098 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 11:17:24,098 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:17:24,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:17:24,099 INFO L82 PathProgramCache]: Analyzing trace with hash -565045263, now seen corresponding path program 1 times [2019-01-12 11:17:24,099 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:17:24,099 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:17:24,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:17:24,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:17:24,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:17:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:17:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:17:24,309 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 11:17:24,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-12 11:17:24,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-12 11:17:24,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-12 11:17:24,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-01-12 11:17:24,311 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 6 states. [2019-01-12 11:17:24,698 WARN L181 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2019-01-12 11:17:24,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:17:24,772 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-01-12 11:17:24,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-12 11:17:24,775 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-01-12 11:17:24,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:17:24,775 INFO L225 Difference]: With dead ends: 17 [2019-01-12 11:17:24,776 INFO L226 Difference]: Without dead ends: 15 [2019-01-12 11:17:24,777 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-01-12 11:17:24,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-01-12 11:17:24,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-01-12 11:17:24,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-01-12 11:17:24,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-01-12 11:17:24,782 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2019-01-12 11:17:24,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:17:24,782 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-01-12 11:17:24,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-12 11:17:24,783 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-01-12 11:17:24,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-12 11:17:24,783 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:17:24,784 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 11:17:24,784 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:17:24,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:17:24,784 INFO L82 PathProgramCache]: Analyzing trace with hash 889328994, now seen corresponding path program 1 times [2019-01-12 11:17:24,785 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:17:24,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:17:24,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:17:24,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:17:24,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:17:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:17:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-12 11:17:24,890 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 11:17:24,891 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 [2019-01-12 11:17:24,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:17:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:17:24,941 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 11:17:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:17:25,283 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-12 11:17:25,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 12 [2019-01-12 11:17:25,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-01-12 11:17:25,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-01-12 11:17:25,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-01-12 11:17:25,285 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 12 states. [2019-01-12 11:17:25,773 WARN L181 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2019-01-12 11:17:26,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:17:26,019 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-01-12 11:17:26,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-01-12 11:17:26,022 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2019-01-12 11:17:26,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:17:26,022 INFO L225 Difference]: With dead ends: 20 [2019-01-12 11:17:26,022 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 11:17:26,024 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2019-01-12 11:17:26,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 11:17:26,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 11:17:26,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 11:17:26,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 11:17:26,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-01-12 11:17:26,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:17:26,025 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 11:17:26,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-01-12 11:17:26,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 11:17:26,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 11:17:26,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 11:17:26,194 WARN L181 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 12 [2019-01-12 11:17:26,327 INFO L448 ceAbstractionStarter]: For program point L4-3(lines 4 6) no Hoare annotation was computed. [2019-01-12 11:17:26,327 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 11:17:26,328 INFO L444 ceAbstractionStarter]: At program point L4-5(lines 1 31) the Hoare annotation is: (and (< 0 ULTIMATE.start_main_~MAXPATHLEN~0) (<= 0 ULTIMATE.start_main_~glob2_p_off~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~glob2_p_off~0 ULTIMATE.start_main_~MAXPATHLEN~0) (<= ULTIMATE.start_main_~glob2_pathlim_off~0 ULTIMATE.start_main_~MAXPATHLEN~0)) [2019-01-12 11:17:26,328 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-01-12 11:17:26,328 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-01-12 11:17:26,328 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2019-01-12 11:17:26,328 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-01-12 11:17:26,328 INFO L448 ceAbstractionStarter]: For program point L5-1(line 5) no Hoare annotation was computed. [2019-01-12 11:17:26,329 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-01-12 11:17:26,329 INFO L451 ceAbstractionStarter]: At program point L30(lines 11 31) the Hoare annotation is: true [2019-01-12 11:17:26,329 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 11:17:26,329 INFO L451 ceAbstractionStarter]: At program point L30-1(lines 10 31) the Hoare annotation is: true [2019-01-12 11:17:26,329 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 11:17:26,330 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 24 29) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~glob2_p_off~0)) (.cse1 (<= ULTIMATE.start_main_~glob2_pathlim_off~0 ULTIMATE.start_main_~MAXPATHLEN~0))) (or (and (<= 1 ULTIMATE.start_main_~MAXPATHLEN~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0 .cse1) (and (<= ULTIMATE.start_main_~glob2_p_off~0 0) .cse0 (<= (+ ULTIMATE.start_main_~glob2_p_off~0 1) ULTIMATE.start_main_~MAXPATHLEN~0) .cse1))) [2019-01-12 11:17:26,330 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-01-12 11:17:26,330 INFO L444 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~MAXPATHLEN~0) (<= 0 ULTIMATE.start_main_~glob2_p_off~0) (<= ULTIMATE.start_main_~glob2_p_off~0 ULTIMATE.start_main_~MAXPATHLEN~0) (= ULTIMATE.start___VERIFIER_assert_~cond 1) (<= ULTIMATE.start_main_~glob2_pathlim_off~0 ULTIMATE.start_main_~MAXPATHLEN~0)) [2019-01-12 11:17:26,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 11:17:26 BoogieIcfgContainer [2019-01-12 11:17:26,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 11:17:26,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 11:17:26,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 11:17:26,353 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 11:17:26,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:17:23" (3/4) ... [2019-01-12 11:17:26,357 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 11:17:26,366 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-01-12 11:17:26,367 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 11:17:26,417 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 11:17:26,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 11:17:26,418 INFO L168 Benchmark]: Toolchain (without parser) took 3663.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 947.3 MB in the beginning and 1.0 GB in the end (delta: -54.5 MB). Peak memory consumption was 90.2 MB. Max. memory is 11.5 GB. [2019-01-12 11:17:26,419 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 11:17:26,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.84 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 11:17:26,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.16 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 11:17:26,421 INFO L168 Benchmark]: Boogie Preprocessor took 18.44 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 11:17:26,422 INFO L168 Benchmark]: RCFGBuilder took 382.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-01-12 11:17:26,422 INFO L168 Benchmark]: TraceAbstraction took 2929.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 120.9 MB). Peak memory consumption was 120.9 MB. Max. memory is 11.5 GB. [2019-01-12 11:17:26,423 INFO L168 Benchmark]: Witness Printer took 64.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 11:17:26,427 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 231.84 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.16 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.44 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 382.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2929.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 120.9 MB). Peak memory consumption was 120.9 MB. Max. memory is 11.5 GB. * Witness Printer took 64.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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 - 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 2 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((0 < MAXPATHLEN && 0 <= glob2_p_off) && 1 == cond) && glob2_p_off <= MAXPATHLEN) && glob2_pathlim_off <= MAXPATHLEN - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((1 <= MAXPATHLEN && 1 == cond) && 0 <= glob2_p_off) && glob2_pathlim_off <= MAXPATHLEN) || (((glob2_p_off <= 0 && 0 <= glob2_p_off) && glob2_p_off + 1 <= MAXPATHLEN) && glob2_pathlim_off <= MAXPATHLEN) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (((1 <= MAXPATHLEN && 0 <= glob2_p_off) && glob2_p_off <= MAXPATHLEN) && cond == 1) && glob2_pathlim_off <= MAXPATHLEN - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. SAFE Result, 2.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 50 SDslu, 27 SDs, 0 SdLazy, 67 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 18 NumberOfFragments, 63 HoareAnnotationTreeSize, 5 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 182 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1793 SizeOfPredicates, 8 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 1/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...