./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/mutex_lock_struct_true-termination.c_true-unreach-call_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/mutex_lock_struct_true-termination.c_true-unreach-call_1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b5f5081a79a52fea970666bdbaa0bec9706e6a67 ............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:01:59,390 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:01:59,391 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:01:59,408 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:01:59,409 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:01:59,414 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:01:59,415 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:01:59,416 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:01:59,417 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:01:59,423 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:01:59,424 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:01:59,424 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:01:59,425 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:01:59,425 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:01:59,426 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:01:59,426 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:01:59,427 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:01:59,428 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:01:59,434 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:01:59,435 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:01:59,436 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:01:59,436 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:01:59,442 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:01:59,442 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:01:59,443 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:01:59,444 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:01:59,445 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:01:59,447 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:01:59,448 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:01:59,449 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:01:59,449 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:01:59,451 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:01:59,451 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:01:59,451 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:01:59,452 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:01:59,454 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:01:59,454 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:01:59,464 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:01:59,465 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:01:59,465 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:01:59,465 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:01:59,465 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:01:59,466 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:01:59,466 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:01:59,466 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:01:59,466 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:01:59,466 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:01:59,466 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:01:59,466 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:01:59,466 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:01:59,467 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:01:59,467 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:01:59,467 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:01:59,467 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:01:59,467 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:01:59,468 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:01:59,468 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:01:59,468 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:01:59,468 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:01:59,468 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:01:59,468 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:01:59,468 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:01:59,468 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:01:59,468 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:01:59,469 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:01:59,469 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:01:59,469 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:01:59,469 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:01:59,469 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:01:59,469 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:01:59,469 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:01:59,472 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:01:59,473 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:01:59,473 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:01:59,473 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5f5081a79a52fea970666bdbaa0bec9706e6a67 [2018-11-18 13:01:59,497 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:01:59,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:01:59,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:01:59,510 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:01:59,510 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:01:59,511 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/mutex_lock_struct_true-termination.c_true-unreach-call_1.i [2018-11-18 13:01:59,555 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan/data/bbc870c07/eb86e8c516ea4f0d9760fbcbb7d3794f/FLAG95286b46e [2018-11-18 13:01:59,983 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:01:59,984 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/sv-benchmarks/c/ldv-regression/mutex_lock_struct_true-termination.c_true-unreach-call_1.i [2018-11-18 13:01:59,989 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan/data/bbc870c07/eb86e8c516ea4f0d9760fbcbb7d3794f/FLAG95286b46e [2018-11-18 13:02:00,380 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan/data/bbc870c07/eb86e8c516ea4f0d9760fbcbb7d3794f [2018-11-18 13:02:00,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:02:00,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:02:00,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:02:00,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:02:00,389 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:02:00,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:02:00" (1/1) ... [2018-11-18 13:02:00,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b28859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:02:00, skipping insertion in model container [2018-11-18 13:02:00,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:02:00" (1/1) ... [2018-11-18 13:02:00,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:02:00,415 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:02:00,533 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:02:00,541 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:02:00,553 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:02:00,565 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:02:00,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:02:00 WrapperNode [2018-11-18 13:02:00,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:02:00,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:02:00,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:02:00,567 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:02:00,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:02:00" (1/1) ... [2018-11-18 13:02:00,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:02:00" (1/1) ... [2018-11-18 13:02:00,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:02:00,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:02:00,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:02:00,591 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:02:00,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:02:00" (1/1) ... [2018-11-18 13:02:00,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:02:00" (1/1) ... [2018-11-18 13:02:00,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:02:00" (1/1) ... [2018-11-18 13:02:00,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:02:00" (1/1) ... [2018-11-18 13:02:00,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:02:00" (1/1) ... [2018-11-18 13:02:00,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:02:00" (1/1) ... [2018-11-18 13:02:00,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:02:00" (1/1) ... [2018-11-18 13:02:00,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:02:00,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:02:00,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:02:00,612 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:02:00,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:02:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:02:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 13:02:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2018-11-18 13:02:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2018-11-18 13:02:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:02:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:02:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:02:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure err [2018-11-18 13:02:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2018-11-18 13:02:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2018-11-18 13:02:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2018-11-18 13:02:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:02:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:02:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 13:02:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:02:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:02:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:02:01,025 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:02:01,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:02:01 BoogieIcfgContainer [2018-11-18 13:02:01,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:02:01,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:02:01,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:02:01,029 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:02:01,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:02:00" (1/3) ... [2018-11-18 13:02:01,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5575e294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:02:01, skipping insertion in model container [2018-11-18 13:02:01,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:02:00" (2/3) ... [2018-11-18 13:02:01,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5575e294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:02:01, skipping insertion in model container [2018-11-18 13:02:01,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:02:01" (3/3) ... [2018-11-18 13:02:01,032 INFO L112 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct_true-termination.c_true-unreach-call_1.i [2018-11-18 13:02:01,040 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:02:01,046 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:02:01,060 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:02:01,088 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:02:01,088 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:02:01,088 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:02:01,088 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:02:01,088 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:02:01,088 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:02:01,088 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:02:01,088 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:02:01,109 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-18 13:02:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 13:02:01,114 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:02:01,114 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:02:01,116 INFO L423 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:02:01,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:02:01,122 INFO L82 PathProgramCache]: Analyzing trace with hash 589228543, now seen corresponding path program 1 times [2018-11-18 13:02:01,123 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:02:01,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:02:01,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:02:01,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:02:01,161 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:02:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:02:01,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:02:01,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:02:01,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:02:01,302 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:02:01,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:02:01,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:02:01,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:02:01,315 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 5 states. [2018-11-18 13:02:01,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:02:01,413 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2018-11-18 13:02:01,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 13:02:01,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-18 13:02:01,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:02:01,421 INFO L225 Difference]: With dead ends: 46 [2018-11-18 13:02:01,421 INFO L226 Difference]: Without dead ends: 18 [2018-11-18 13:02:01,424 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:02:01,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-18 13:02:01,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-18 13:02:01,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 13:02:01,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-11-18 13:02:01,471 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2018-11-18 13:02:01,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:02:01,471 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-11-18 13:02:01,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:02:01,472 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-11-18 13:02:01,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 13:02:01,472 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:02:01,474 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:02:01,475 INFO L423 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:02:01,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:02:01,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1259031447, now seen corresponding path program 1 times [2018-11-18 13:02:01,476 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:02:01,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:02:01,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:02:01,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:02:01,477 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:02:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:02:01,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:02:01,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:02:01,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 13:02:01,623 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:02:01,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 13:02:01,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 13:02:01,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:02:01,626 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 7 states. [2018-11-18 13:02:01,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:02:01,787 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-18 13:02:01,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:02:01,787 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-18 13:02:01,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:02:01,787 INFO L225 Difference]: With dead ends: 18 [2018-11-18 13:02:01,787 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:02:01,788 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:02:01,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:02:01,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:02:01,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:02:01,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:02:01,789 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-11-18 13:02:01,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:02:01,789 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:02:01,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 13:02:01,789 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:02:01,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:02:01,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:02:01,827 INFO L421 ceAbstractionStarter]: At program point mutex_unlockENTRY(lines 25 29) the Hoare annotation is: (or (= 1 (select (select |#memory_int| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|)) (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1))) [2018-11-18 13:02:01,828 INFO L425 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-11-18 13:02:01,828 INFO L425 ceAbstractionStarter]: For program point mutex_unlockEXIT(lines 25 29) no Hoare annotation was computed. [2018-11-18 13:02:01,828 INFO L421 ceAbstractionStarter]: At program point L27-1(line 27) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2018-11-18 13:02:01,828 INFO L425 ceAbstractionStarter]: For program point L27-3(line 27) no Hoare annotation was computed. [2018-11-18 13:02:01,828 INFO L425 ceAbstractionStarter]: For program point mutex_unlockFINAL(lines 25 29) no Hoare annotation was computed. [2018-11-18 13:02:01,828 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:02:01,828 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:02:01,828 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:02:01,828 INFO L425 ceAbstractionStarter]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2018-11-18 13:02:01,828 INFO L425 ceAbstractionStarter]: For program point errEXIT(lines 12 13) no Hoare annotation was computed. [2018-11-18 13:02:01,829 INFO L428 ceAbstractionStarter]: At program point errENTRY(lines 12 13) the Hoare annotation is: true [2018-11-18 13:02:01,829 INFO L425 ceAbstractionStarter]: For program point errFINAL(lines 12 13) no Hoare annotation was computed. [2018-11-18 13:02:01,829 INFO L421 ceAbstractionStarter]: At program point mutex_lockENTRY(lines 19 23) the Hoare annotation is: (or (= 0 (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|)) (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0))) [2018-11-18 13:02:01,829 INFO L425 ceAbstractionStarter]: For program point mutex_lockFINAL(lines 19 23) no Hoare annotation was computed. [2018-11-18 13:02:01,829 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-18 13:02:01,829 INFO L425 ceAbstractionStarter]: For program point mutex_lockEXIT(lines 19 23) no Hoare annotation was computed. [2018-11-18 13:02:01,829 INFO L421 ceAbstractionStarter]: At program point L21-1(line 21) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2018-11-18 13:02:01,829 INFO L425 ceAbstractionStarter]: For program point L21-3(line 21) no Hoare annotation was computed. [2018-11-18 13:02:01,829 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:02:01,829 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 13:02:01,830 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:02:01,830 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:02:01,830 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 31 43) the Hoare annotation is: true [2018-11-18 13:02:01,830 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 31 43) no Hoare annotation was computed. [2018-11-18 13:02:01,830 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 31 43) no Hoare annotation was computed. [2018-11-18 13:02:01,830 INFO L425 ceAbstractionStarter]: For program point L38(line 38) no Hoare annotation was computed. [2018-11-18 13:02:01,830 INFO L421 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (= 0 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2018-11-18 13:02:01,830 INFO L421 ceAbstractionStarter]: At program point L36-1(line 36) the Hoare annotation is: (= 1 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2018-11-18 13:02:01,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:02:01 BoogieIcfgContainer [2018-11-18 13:02:01,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:02:01,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:02:01,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:02:01,833 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:02:01,833 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:02:01" (3/4) ... [2018-11-18 13:02:01,836 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:02:01,842 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2018-11-18 13:02:01,842 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:02:01,842 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure err [2018-11-18 13:02:01,842 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2018-11-18 13:02:01,843 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:02:01,846 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-18 13:02:01,846 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:02:01,846 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 13:02:01,885 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e0326f7c-a7c5-4e38-a011-49061bef0f95/bin-2019/utaipan/witness.graphml [2018-11-18 13:02:01,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:02:01,885 INFO L168 Benchmark]: Toolchain (without parser) took 1502.48 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 224.9 MB). Free memory was 953.1 MB in the beginning and 1.2 GB in the end (delta: -204.0 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-11-18 13:02:01,886 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:02:01,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.13 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:02:01,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.39 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:02:01,887 INFO L168 Benchmark]: Boogie Preprocessor took 21.26 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:02:01,888 INFO L168 Benchmark]: RCFGBuilder took 413.67 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 224.9 MB). Free memory was 939.7 MB in the beginning and 1.2 GB in the end (delta: -266.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 13:02:01,888 INFO L168 Benchmark]: TraceAbstraction took 806.33 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:02:01,888 INFO L168 Benchmark]: Witness Printer took 52.05 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:02:01,890 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 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.13 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 942.4 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 23.39 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.26 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 413.67 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 224.9 MB). Free memory was 939.7 MB in the beginning and 1.2 GB in the end (delta: -266.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 806.33 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. * Witness Printer took 52.05 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 4 SDslu, 96 SDs, 0 SdLazy, 40 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 16 NumberOfFragments, 67 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...