./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89c40e0e226fdcfbda8631272bf2c238348d58a6 ............................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 18:12:57,681 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 18:12:57,683 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 18:12:57,704 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 18:12:57,705 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 18:12:57,706 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 18:12:57,708 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 18:12:57,710 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 18:12:57,712 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 18:12:57,713 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 18:12:57,714 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 18:12:57,714 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 18:12:57,715 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 18:12:57,718 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 18:12:57,719 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 18:12:57,720 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 18:12:57,721 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 18:12:57,722 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 18:12:57,725 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 18:12:57,734 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 18:12:57,735 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 18:12:57,736 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 18:12:57,742 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 18:12:57,742 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 18:12:57,742 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 18:12:57,745 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 18:12:57,746 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 18:12:57,749 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 18:12:57,749 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 18:12:57,750 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 18:12:57,750 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 18:12:57,752 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 18:12:57,752 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 18:12:57,753 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 18:12:57,754 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 18:12:57,755 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 18:12:57,755 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-01 18:12:57,784 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 18:12:57,785 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 18:12:57,786 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 18:12:57,786 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 18:12:57,786 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 18:12:57,787 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 18:12:57,787 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 18:12:57,787 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 18:12:57,787 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 18:12:57,787 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 18:12:57,787 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 18:12:57,789 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-01 18:12:57,789 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-01 18:12:57,789 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-01 18:12:57,789 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 18:12:57,790 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 18:12:57,790 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 18:12:57,790 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 18:12:57,791 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 18:12:57,791 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 18:12:57,791 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 18:12:57,791 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 18:12:57,791 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 18:12:57,792 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 18:12:57,792 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 18:12:57,793 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 18:12:57,793 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 89c40e0e226fdcfbda8631272bf2c238348d58a6 [2019-01-01 18:12:57,835 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 18:12:57,854 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 18:12:57,858 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 18:12:57,860 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 18:12:57,860 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 18:12:57,861 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c [2019-01-01 18:12:57,926 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946f26947/110b3aceb84f4bd69878e2f590ce5768/FLAG21e020327 [2019-01-01 18:12:58,401 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 18:12:58,402 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c [2019-01-01 18:12:58,409 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946f26947/110b3aceb84f4bd69878e2f590ce5768/FLAG21e020327 [2019-01-01 18:12:58,760 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946f26947/110b3aceb84f4bd69878e2f590ce5768 [2019-01-01 18:12:58,764 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 18:12:58,765 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-01 18:12:58,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 18:12:58,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 18:12:58,770 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 18:12:58,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 06:12:58" (1/1) ... [2019-01-01 18:12:58,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a0d44a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:12:58, skipping insertion in model container [2019-01-01 18:12:58,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 06:12:58" (1/1) ... [2019-01-01 18:12:58,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 18:12:58,805 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 18:12:58,999 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 18:12:59,010 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 18:12:59,027 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 18:12:59,042 INFO L195 MainTranslator]: Completed translation [2019-01-01 18:12:59,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:12:59 WrapperNode [2019-01-01 18:12:59,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 18:12:59,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 18:12:59,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 18:12:59,044 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 18:12:59,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:12:59" (1/1) ... [2019-01-01 18:12:59,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:12:59" (1/1) ... [2019-01-01 18:12:59,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:12:59" (1/1) ... [2019-01-01 18:12:59,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:12:59" (1/1) ... [2019-01-01 18:12:59,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:12:59" (1/1) ... [2019-01-01 18:12:59,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:12:59" (1/1) ... [2019-01-01 18:12:59,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:12:59" (1/1) ... [2019-01-01 18:12:59,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 18:12:59,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 18:12:59,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 18:12:59,082 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 18:12:59,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:12:59" (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 [2019-01-01 18:12:59,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-01 18:12:59,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 18:12:59,199 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-01 18:12:59,199 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-01-01 18:12:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-01-01 18:12:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-01 18:12:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 18:12:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-01-01 18:12:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 18:12:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-01 18:12:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 18:12:59,313 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-01-01 18:12:59,451 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 18:12:59,451 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2019-01-01 18:12:59,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 06:12:59 BoogieIcfgContainer [2019-01-01 18:12:59,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 18:12:59,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 18:12:59,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 18:12:59,456 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 18:12:59,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 06:12:58" (1/3) ... [2019-01-01 18:12:59,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f901588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 06:12:59, skipping insertion in model container [2019-01-01 18:12:59,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 06:12:59" (2/3) ... [2019-01-01 18:12:59,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f901588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 06:12:59, skipping insertion in model container [2019-01-01 18:12:59,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 06:12:59" (3/3) ... [2019-01-01 18:12:59,460 INFO L112 eAbstractionObserver]: Analyzing ICFG memset2_true-valid-memsafety_true-termination.c [2019-01-01 18:12:59,471 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 18:12:59,480 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-01 18:12:59,507 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-01 18:12:59,567 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 18:12:59,567 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 18:12:59,568 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-01 18:12:59,568 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 18:12:59,568 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 18:12:59,568 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 18:12:59,568 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 18:12:59,569 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 18:12:59,569 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 18:12:59,609 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-01-01 18:12:59,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-01 18:12:59,621 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 18:12:59,623 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-01 18:12:59,625 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-01 18:12:59,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 18:12:59,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847368, now seen corresponding path program 1 times [2019-01-01 18:12:59,637 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 18:12:59,637 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 18:12:59,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:12:59,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 18:12:59,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:12:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 18:12:59,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 18:12:59,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 18:12:59,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 18:12:59,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 18:12:59,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 18:12:59,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 18:12:59,829 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-01-01 18:12:59,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 18:12:59,895 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-01-01 18:12:59,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 18:12:59,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-01-01 18:12:59,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 18:12:59,907 INFO L225 Difference]: With dead ends: 19 [2019-01-01 18:12:59,908 INFO L226 Difference]: Without dead ends: 16 [2019-01-01 18:12:59,910 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 18:12:59,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-01-01 18:12:59,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-01-01 18:12:59,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-01 18:12:59,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-01-01 18:12:59,951 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2019-01-01 18:12:59,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 18:12:59,952 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-01-01 18:12:59,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 18:12:59,952 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-01-01 18:12:59,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-01 18:12:59,953 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 18:12:59,953 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-01 18:12:59,953 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-01 18:12:59,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 18:12:59,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847367, now seen corresponding path program 1 times [2019-01-01 18:12:59,954 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 18:12:59,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 18:12:59,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:12:59,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 18:12:59,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:12:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 18:13:00,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 18:13:00,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 18:13:00,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 18:13:00,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 18:13:00,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 18:13:00,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 18:13:00,140 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 3 states. [2019-01-01 18:13:00,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 18:13:00,200 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-01-01 18:13:00,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 18:13:00,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-01-01 18:13:00,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 18:13:00,203 INFO L225 Difference]: With dead ends: 15 [2019-01-01 18:13:00,203 INFO L226 Difference]: Without dead ends: 15 [2019-01-01 18:13:00,204 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 18:13:00,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-01-01 18:13:00,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-01-01 18:13:00,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-01 18:13:00,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-01-01 18:13:00,211 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2019-01-01 18:13:00,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 18:13:00,212 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-01-01 18:13:00,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 18:13:00,212 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-01-01 18:13:00,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-01 18:13:00,215 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 18:13:00,215 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 18:13:00,216 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-01 18:13:00,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 18:13:00,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1462327129, now seen corresponding path program 1 times [2019-01-01 18:13:00,216 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 18:13:00,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 18:13:00,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:13:00,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 18:13:00,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:13:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 18:13:00,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 18:13:00,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 18:13:00,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 18:13:00,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 18:13:00,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 18:13:00,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 18:13:00,339 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2019-01-01 18:13:00,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 18:13:00,415 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-01-01 18:13:00,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 18:13:00,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-01-01 18:13:00,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 18:13:00,418 INFO L225 Difference]: With dead ends: 18 [2019-01-01 18:13:00,418 INFO L226 Difference]: Without dead ends: 16 [2019-01-01 18:13:00,419 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 [2019-01-01 18:13:00,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-01-01 18:13:00,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-01-01 18:13:00,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-01 18:13:00,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-01-01 18:13:00,425 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2019-01-01 18:13:00,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 18:13:00,425 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-01-01 18:13:00,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 18:13:00,425 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-01-01 18:13:00,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-01-01 18:13:00,426 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 18:13:00,426 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 18:13:00,426 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-01 18:13:00,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 18:13:00,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1971150090, now seen corresponding path program 1 times [2019-01-01 18:13:00,427 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 18:13:00,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 18:13:00,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:13:00,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 18:13:00,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:13:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 18:13:00,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 18:13:00,608 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 18:13:00,608 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 [2019-01-01 18:13:00,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 18:13:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 18:13:00,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 18:13:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 18:13:00,816 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-01 18:13:00,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-01-01 18:13:00,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 18:13:00,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 18:13:00,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-01 18:13:00,818 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2019-01-01 18:13:00,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 18:13:00,945 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-01-01 18:13:00,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 18:13:00,948 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-01-01 18:13:00,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 18:13:00,949 INFO L225 Difference]: With dead ends: 19 [2019-01-01 18:13:00,949 INFO L226 Difference]: Without dead ends: 17 [2019-01-01 18:13:00,949 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-01-01 18:13:00,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-01-01 18:13:00,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-01-01 18:13:00,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-01 18:13:00,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-01-01 18:13:00,955 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2019-01-01 18:13:00,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 18:13:00,955 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-01-01 18:13:00,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 18:13:00,959 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-01-01 18:13:00,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-01-01 18:13:00,960 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 18:13:00,960 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 18:13:00,960 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-01 18:13:00,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 18:13:00,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1034761479, now seen corresponding path program 2 times [2019-01-01 18:13:00,962 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 18:13:00,962 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 18:13:00,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:13:00,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 18:13:00,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 18:13:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 18:13:01,116 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 18:13:01,116 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 18:13:01,117 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 [2019-01-01 18:13:01,128 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-01 18:13:01,159 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-01-01 18:13:01,159 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-01 18:13:01,162 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 18:13:01,353 INFO L701 Elim1Store]: detected not equals via solver [2019-01-01 18:13:01,360 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2019-01-01 18:13:01,360 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-01 18:13:01,363 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-01 18:13:01,363 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2019-01-01 18:13:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-01 18:13:01,951 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-01 18:13:01,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2019-01-01 18:13:01,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-01 18:13:01,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-01 18:13:01,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=65, Unknown=1, NotChecked=0, Total=90 [2019-01-01 18:13:01,953 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 10 states. [2019-01-01 18:13:02,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 18:13:02,540 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-01-01 18:13:02,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-01-01 18:13:02,542 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2019-01-01 18:13:02,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 18:13:02,542 INFO L225 Difference]: With dead ends: 19 [2019-01-01 18:13:02,542 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 18:13:02,543 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=62, Invalid=147, Unknown=1, NotChecked=0, Total=210 [2019-01-01 18:13:02,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 18:13:02,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 18:13:02,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 18:13:02,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 18:13:02,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-01-01 18:13:02,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 18:13:02,546 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 18:13:02,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-01 18:13:02,546 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 18:13:02,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 18:13:02,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 06:13:02 BoogieIcfgContainer [2019-01-01 18:13:02,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 18:13:02,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 18:13:02,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 18:13:02,555 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 18:13:02,557 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 06:12:59" (3/4) ... [2019-01-01 18:13:02,561 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 18:13:02,570 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-01-01 18:13:02,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2019-01-01 18:13:02,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-01-01 18:13:02,577 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-01 18:13:02,577 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-01-01 18:13:02,577 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-01 18:13:02,578 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-01 18:13:02,626 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 18:13:02,626 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 18:13:02,627 INFO L168 Benchmark]: Toolchain (without parser) took 3862.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -55.8 MB). Peak memory consumption was 70.6 MB. Max. memory is 11.5 GB. [2019-01-01 18:13:02,630 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-01-01 18:13:02,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.97 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 18:13:02,632 INFO L168 Benchmark]: Boogie Preprocessor took 37.71 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 18:13:02,632 INFO L168 Benchmark]: RCFGBuilder took 370.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2019-01-01 18:13:02,634 INFO L168 Benchmark]: TraceAbstraction took 3101.53 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: 97.5 MB). Peak memory consumption was 97.5 MB. Max. memory is 11.5 GB. [2019-01-01 18:13:02,635 INFO L168 Benchmark]: Witness Printer took 71.79 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. [2019-01-01 18:13:02,640 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 276.97 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.71 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 370.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3101.53 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: 97.5 MB). Peak memory consumption was 97.5 MB. Max. memory is 11.5 GB. * Witness Printer took 71.79 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: 20]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 22]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 22]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 3 error locations. SAFE Result, 3.0s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 15 SDslu, 87 SDs, 0 SdLazy, 87 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 90 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 83 ConstructedInterpolants, 8 QuantifiedInterpolants, 2976 SizeOfPredicates, 1 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 3/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...