./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-regression/test_malloc-2_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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/ldv-regression/test_malloc-2_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 746ef10724608470d7f1204da5fc2d0f029ba6c5 .......................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 04:22:59,973 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 04:22:59,975 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 04:22:59,987 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 04:22:59,987 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 04:22:59,989 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 04:22:59,991 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 04:22:59,993 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 04:22:59,995 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 04:22:59,996 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 04:22:59,997 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 04:22:59,997 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 04:22:59,998 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 04:22:59,999 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 04:23:00,001 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 04:23:00,002 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 04:23:00,003 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 04:23:00,005 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 04:23:00,008 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 04:23:00,010 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 04:23:00,011 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 04:23:00,012 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 04:23:00,015 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 04:23:00,016 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 04:23:00,016 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 04:23:00,018 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 04:23:00,019 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 04:23:00,020 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 04:23:00,021 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 04:23:00,022 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 04:23:00,023 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 04:23:00,024 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 04:23:00,024 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 04:23:00,024 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 04:23:00,026 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 04:23:00,027 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 04:23:00,027 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 04:23:00,044 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 04:23:00,044 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 04:23:00,046 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 04:23:00,046 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 04:23:00,046 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 04:23:00,047 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 04:23:00,047 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 04:23:00,047 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 04:23:00,047 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 04:23:00,048 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 04:23:00,048 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 04:23:00,048 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 04:23:00,048 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 04:23:00,048 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 04:23:00,048 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 04:23:00,050 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 04:23:00,050 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 04:23:00,050 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 04:23:00,051 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 04:23:00,051 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 04:23:00,051 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 04:23:00,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:23:00,052 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 04:23:00,052 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 04:23:00,052 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 04:23:00,052 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 04:23:00,052 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 04:23:00,053 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 04:23:00,054 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 -> 746ef10724608470d7f1204da5fc2d0f029ba6c5 [2018-12-31 04:23:00,090 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 04:23:00,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 04:23:00,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 04:23:00,109 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 04:23:00,110 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 04:23:00,111 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/test_malloc-2_true-unreach-call_true-termination.i [2018-12-31 04:23:00,170 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eccb8c54/1a1ace1b3f0d4b7e8d3b9d28c441d028/FLAGc0fed04f6 [2018-12-31 04:23:00,708 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 04:23:00,708 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/test_malloc-2_true-unreach-call_true-termination.i [2018-12-31 04:23:00,727 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eccb8c54/1a1ace1b3f0d4b7e8d3b9d28c441d028/FLAGc0fed04f6 [2018-12-31 04:23:01,015 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eccb8c54/1a1ace1b3f0d4b7e8d3b9d28c441d028 [2018-12-31 04:23:01,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 04:23:01,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 04:23:01,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 04:23:01,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 04:23:01,025 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 04:23:01,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:23:01" (1/1) ... [2018-12-31 04:23:01,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@744c2293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:01, skipping insertion in model container [2018-12-31 04:23:01,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:23:01" (1/1) ... [2018-12-31 04:23:01,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 04:23:01,091 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 04:23:01,472 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:23:01,478 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 04:23:01,557 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:23:01,709 INFO L195 MainTranslator]: Completed translation [2018-12-31 04:23:01,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:01 WrapperNode [2018-12-31 04:23:01,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 04:23:01,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 04:23:01,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 04:23:01,712 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 04:23:01,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:01" (1/1) ... [2018-12-31 04:23:01,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:01" (1/1) ... [2018-12-31 04:23:01,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 04:23:01,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 04:23:01,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 04:23:01,759 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 04:23:01,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:01" (1/1) ... [2018-12-31 04:23:01,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:01" (1/1) ... [2018-12-31 04:23:01,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:01" (1/1) ... [2018-12-31 04:23:01,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:01" (1/1) ... [2018-12-31 04:23:01,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:01" (1/1) ... [2018-12-31 04:23:01,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:01" (1/1) ... [2018-12-31 04:23:01,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:01" (1/1) ... [2018-12-31 04:23:01,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 04:23:01,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 04:23:01,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 04:23:01,786 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 04:23:01,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:01" (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 [2018-12-31 04:23:01,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 04:23:01,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 04:23:01,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 04:23:01,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 04:23:02,279 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 04:23:02,280 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 04:23:02,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:23:02 BoogieIcfgContainer [2018-12-31 04:23:02,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 04:23:02,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 04:23:02,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 04:23:02,290 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 04:23:02,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 04:23:01" (1/3) ... [2018-12-31 04:23:02,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32eb86c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:23:02, skipping insertion in model container [2018-12-31 04:23:02,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:01" (2/3) ... [2018-12-31 04:23:02,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32eb86c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:23:02, skipping insertion in model container [2018-12-31 04:23:02,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:23:02" (3/3) ... [2018-12-31 04:23:02,299 INFO L112 eAbstractionObserver]: Analyzing ICFG test_malloc-2_true-unreach-call_true-termination.i [2018-12-31 04:23:02,319 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 04:23:02,329 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 04:23:02,353 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 04:23:02,386 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 04:23:02,387 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 04:23:02,387 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 04:23:02,387 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 04:23:02,388 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 04:23:02,388 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 04:23:02,388 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 04:23:02,389 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 04:23:02,389 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 04:23:02,407 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 04:23:02,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 04:23:02,419 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:23:02,420 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 04:23:02,422 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:23:02,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:23:02,429 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2018-12-31 04:23:02,432 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:23:02,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:23:02,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:23:02,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:23:02,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:23:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:23:02,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 04:23:02,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:23:02,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 04:23:02,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 04:23:02,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 04:23:02,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-31 04:23:02,654 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2018-12-31 04:23:02,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:23:02,742 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-31 04:23:02,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 04:23:02,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-12-31 04:23:02,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:23:02,752 INFO L225 Difference]: With dead ends: 18 [2018-12-31 04:23:02,753 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 04:23:02,758 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-31 04:23:02,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 04:23:02,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 04:23:02,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 04:23:02,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 04:23:02,787 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-12-31 04:23:02,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:23:02,787 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 04:23:02,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 04:23:02,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 04:23:02,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 04:23:02,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 04:23:02,858 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-31 04:23:02,858 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 04:23:02,858 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-12-31 04:23:02,858 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 04:23:02,858 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 04:23:02,859 INFO L444 ceAbstractionStarter]: At program point L437(lines 430 438) the Hoare annotation is: (not (= ULTIMATE.start_main_~p1~0.base ULTIMATE.start_main_~p2~0.base)) [2018-12-31 04:23:02,859 INFO L448 ceAbstractionStarter]: For program point L434(lines 434 436) no Hoare annotation was computed. [2018-12-31 04:23:02,859 INFO L444 ceAbstractionStarter]: At program point L434-1(lines 434 436) the Hoare annotation is: (not (= ULTIMATE.start_main_~p1~0.base ULTIMATE.start_main_~p2~0.base)) [2018-12-31 04:23:02,859 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-31 04:23:02,859 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-31 04:23:02,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 04:23:02 BoogieIcfgContainer [2018-12-31 04:23:02,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 04:23:02,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 04:23:02,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 04:23:02,875 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 04:23:02,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:23:02" (3/4) ... [2018-12-31 04:23:02,880 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 04:23:02,892 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-31 04:23:02,892 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-31 04:23:02,942 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 04:23:02,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 04:23:02,943 INFO L168 Benchmark]: Toolchain (without parser) took 1924.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -76.2 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:02,945 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. [2018-12-31 04:23:02,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -123.8 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:02,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:02,948 INFO L168 Benchmark]: Boogie Preprocessor took 26.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:23:02,948 INFO L168 Benchmark]: RCFGBuilder took 495.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:02,949 INFO L168 Benchmark]: TraceAbstraction took 592.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:02,949 INFO L168 Benchmark]: Witness Printer took 67.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:23:02,954 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 689.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -123.8 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 495.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 592.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Witness Printer took 67.18 ms. Allocated memory is still 1.1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: !(p1 == p2) - InvariantResult [Line: 430]: Loop Invariant Derived loop invariant: !(p1 == p2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 10 SDslu, 6 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...