./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/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 0322173b3e50156a3157d6284ff4dd2480f2ac8d .................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:58:09,288 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:58:09,289 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:58:09,298 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:58:09,298 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:58:09,299 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:58:09,300 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:58:09,301 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:58:09,302 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:58:09,303 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:58:09,304 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:58:09,304 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:58:09,305 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:58:09,305 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:58:09,306 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:58:09,307 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:58:09,307 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:58:09,309 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:58:09,310 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:58:09,312 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:58:09,312 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:58:09,313 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:58:09,315 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:58:09,315 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:58:09,315 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:58:09,316 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:58:09,317 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:58:09,317 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:58:09,318 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:58:09,319 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:58:09,319 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:58:09,320 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:58:09,320 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:58:09,320 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:58:09,321 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:58:09,321 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:58:09,322 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 00:58:09,330 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:58:09,331 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:58:09,331 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:58:09,331 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:58:09,331 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:58:09,331 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:58:09,331 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:58:09,331 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 00:58:09,332 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:58:09,332 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:58:09,332 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 00:58:09,332 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 00:58:09,332 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:58:09,332 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:58:09,332 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:58:09,332 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:58:09,332 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:58:09,333 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:58:09,333 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:58:09,333 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:58:09,333 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:58:09,333 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:58:09,333 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:58:09,333 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:58:09,333 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:58:09,333 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:58:09,333 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:58:09,333 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:58:09,333 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:58:09,333 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:58:09,334 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:58:09,334 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:58:09,334 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 00:58:09,334 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:58:09,334 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 00:58:09,334 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 00:58:09,334 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_21ca779d-7a60-4570-b6cb-7723d08b6ad7/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 -> 0322173b3e50156a3157d6284ff4dd2480f2ac8d [2018-12-09 00:58:09,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:58:09,358 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:58:09,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:58:09,361 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:58:09,361 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:58:09,361 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/bin-2019/utaipan/../../sv-benchmarks/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i [2018-12-09 00:58:09,396 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/bin-2019/utaipan/data/a1ca1c683/24a94c6d9ad6483a8d32e3f83db3dc43/FLAG8889e703b [2018-12-09 00:58:09,809 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:58:09,810 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/sv-benchmarks/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i [2018-12-09 00:58:09,813 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/bin-2019/utaipan/data/a1ca1c683/24a94c6d9ad6483a8d32e3f83db3dc43/FLAG8889e703b [2018-12-09 00:58:09,822 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/bin-2019/utaipan/data/a1ca1c683/24a94c6d9ad6483a8d32e3f83db3dc43 [2018-12-09 00:58:09,824 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:58:09,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:58:09,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:58:09,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:58:09,828 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:58:09,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:58:09" (1/1) ... [2018-12-09 00:58:09,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:09, skipping insertion in model container [2018-12-09 00:58:09,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:58:09" (1/1) ... [2018-12-09 00:58:09,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:58:09,844 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:58:09,938 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:58:09,943 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:58:09,953 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:58:09,961 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:58:09,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:09 WrapperNode [2018-12-09 00:58:09,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:58:09,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:58:09,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:58:09,962 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:58:09,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:09" (1/1) ... [2018-12-09 00:58:09,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:09" (1/1) ... [2018-12-09 00:58:09,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:58:09,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:58:09,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:58:09,976 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:58:09,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:09" (1/1) ... [2018-12-09 00:58:09,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:09" (1/1) ... [2018-12-09 00:58:09,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:09" (1/1) ... [2018-12-09 00:58:09,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:09" (1/1) ... [2018-12-09 00:58:10,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:09" (1/1) ... [2018-12-09 00:58:10,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:09" (1/1) ... [2018-12-09 00:58:10,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:09" (1/1) ... [2018-12-09 00:58:10,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:58:10,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:58:10,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:58:10,018 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:58:10,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/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 [2018-12-09 00:58:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 00:58:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:58:10,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:58:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:58:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2018-12-09 00:58:10,050 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2018-12-09 00:58:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:58:10,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:58:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:58:10,050 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:58:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 00:58:10,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 00:58:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 00:58:10,150 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:58:10,150 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 00:58:10,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:58:10 BoogieIcfgContainer [2018-12-09 00:58:10,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:58:10,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:58:10,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:58:10,154 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:58:10,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:58:09" (1/3) ... [2018-12-09 00:58:10,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a54f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:58:10, skipping insertion in model container [2018-12-09 00:58:10,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:09" (2/3) ... [2018-12-09 00:58:10,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a54f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:58:10, skipping insertion in model container [2018-12-09 00:58:10,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:58:10" (3/3) ... [2018-12-09 00:58:10,157 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i [2018-12-09 00:58:10,165 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:58:10,172 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 00:58:10,186 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 00:58:10,210 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:58:10,210 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:58:10,210 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:58:10,210 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:58:10,210 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:58:10,210 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:58:10,210 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:58:10,210 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:58:10,220 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-12-09 00:58:10,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 00:58:10,226 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:58:10,227 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:58:10,228 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:58:10,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:58:10,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1626450083, now seen corresponding path program 1 times [2018-12-09 00:58:10,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:58:10,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:58:10,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:58:10,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:58:10,269 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:58:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:10,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:10,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:58:10,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 00:58:10,401 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:58:10,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 00:58:10,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 00:58:10,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 00:58:10,412 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 7 states. [2018-12-09 00:58:10,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:58:10,516 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2018-12-09 00:58:10,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 00:58:10,517 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-12-09 00:58:10,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:58:10,522 INFO L225 Difference]: With dead ends: 55 [2018-12-09 00:58:10,522 INFO L226 Difference]: Without dead ends: 26 [2018-12-09 00:58:10,524 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-12-09 00:58:10,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-09 00:58:10,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2018-12-09 00:58:10,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-09 00:58:10,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-12-09 00:58:10,549 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2018-12-09 00:58:10,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:58:10,549 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-12-09 00:58:10,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 00:58:10,549 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-12-09 00:58:10,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 00:58:10,550 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:58:10,550 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:58:10,550 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:58:10,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:58:10,551 INFO L82 PathProgramCache]: Analyzing trace with hash -519824651, now seen corresponding path program 1 times [2018-12-09 00:58:10,551 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:58:10,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:58:10,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:58:10,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:58:10,552 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:58:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 00:58:10,638 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:58:10,638 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:58:10,639 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-12-09 00:58:10,640 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [10], [12], [14], [23], [27], [30], [32], [35], [37], [38], [39], [40], [41], [42], [44] [2018-12-09 00:58:10,666 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:58:10,666 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:58:10,748 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 00:58:10,749 INFO L272 AbstractInterpreter]: Visited 18 different actions 18 times. Never merged. Never widened. Performed 122 root evaluator evaluations with a maximum evaluation depth of 5. Performed 122 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-12-09 00:58:10,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:58:10,754 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 00:58:10,754 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:58:10,754 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 00:58:10,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:58:10,760 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 00:58:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:10,779 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:58:10,885 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:10,885 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 00:58:10,983 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:11,007 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 00:58:11,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 18 [2018-12-09 00:58:11,007 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 00:58:11,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 00:58:11,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 00:58:11,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2018-12-09 00:58:11,009 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 14 states. [2018-12-09 00:58:11,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:58:11,133 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-12-09 00:58:11,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 00:58:11,134 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2018-12-09 00:58:11,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:58:11,134 INFO L225 Difference]: With dead ends: 27 [2018-12-09 00:58:11,134 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 00:58:11,135 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 30 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2018-12-09 00:58:11,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 00:58:11,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 00:58:11,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 00:58:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 00:58:11,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-12-09 00:58:11,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:58:11,136 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:58:11,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 00:58:11,136 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 00:58:11,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 00:58:11,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 00:58:11,223 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:58:11,223 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 00:58:11,224 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:58:11,224 INFO L451 ceAbstractionStarter]: At program point glob2ENTRY(lines 14 25) the Hoare annotation is: true [2018-12-09 00:58:11,224 INFO L448 ceAbstractionStarter]: For program point glob2EXIT(lines 14 25) no Hoare annotation was computed. [2018-12-09 00:58:11,224 INFO L444 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (or (< ~tmp~0.offset 4) (not (= 0 |glob2_#in~pathbuf.offset|)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (< ~tmp~0.offset |glob2_#in~pathlim.offset|) (and (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base))) [2018-12-09 00:58:11,224 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-12-09 00:58:11,224 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2018-12-09 00:58:11,224 INFO L444 ceAbstractionStarter]: At program point L18-3(lines 18 22) the Hoare annotation is: (or (< ~tmp~0.offset 4) (and (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base)) (not (= 0 |glob2_#in~pathbuf.offset|)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (< ~tmp~0.offset |glob2_#in~pathlim.offset|)) [2018-12-09 00:58:11,224 INFO L448 ceAbstractionStarter]: For program point L18-4(lines 18 22) no Hoare annotation was computed. [2018-12-09 00:58:11,224 INFO L448 ceAbstractionStarter]: For program point glob2FINAL(lines 14 25) no Hoare annotation was computed. [2018-12-09 00:58:11,224 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:58:11,224 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 00:58:11,225 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 00:58:11,225 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:58:11,225 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 27 38) the Hoare annotation is: true [2018-12-09 00:58:11,225 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 27 38) no Hoare annotation was computed. [2018-12-09 00:58:11,225 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 27 38) no Hoare annotation was computed. [2018-12-09 00:58:11,225 INFO L444 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (<= main_~bound~0.offset ~tmp~0.offset) (= |main_~#pathbuf~0.offset| 0)) [2018-12-09 00:58:11,225 INFO L448 ceAbstractionStarter]: For program point L35-1(line 35) no Hoare annotation was computed. [2018-12-09 00:58:11,225 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-12-09 00:58:11,225 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-12-09 00:58:11,225 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-09 00:58:11,225 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-09 00:58:11,225 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-09 00:58:11,225 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-12-09 00:58:11,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:58:11 BoogieIcfgContainer [2018-12-09 00:58:11,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:58:11,233 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:58:11,233 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:58:11,233 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:58:11,234 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:58:10" (3/4) ... [2018-12-09 00:58:11,236 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 00:58:11,239 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 00:58:11,239 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure glob2 [2018-12-09 00:58:11,239 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 00:58:11,240 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-09 00:58:11,242 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-09 00:58:11,242 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 00:58:11,242 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 00:58:11,265 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_21ca779d-7a60-4570-b6cb-7723d08b6ad7/bin-2019/utaipan/witness.graphml [2018-12-09 00:58:11,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:58:11,266 INFO L168 Benchmark]: Toolchain (without parser) took 1441.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 962.4 MB in the beginning and 915.4 MB in the end (delta: 47.1 MB). Peak memory consumption was 168.2 MB. Max. memory is 11.5 GB. [2018-12-09 00:58:11,267 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:58:11,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 136.28 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:58:11,267 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.48 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:58:11,267 INFO L168 Benchmark]: Boogie Preprocessor took 42.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-09 00:58:11,268 INFO L168 Benchmark]: RCFGBuilder took 133.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:58:11,268 INFO L168 Benchmark]: TraceAbstraction took 1082.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.3 MB in the end (delta: 178.5 MB). Peak memory consumption was 178.5 MB. Max. memory is 11.5 GB. [2018-12-09 00:58:11,268 INFO L168 Benchmark]: Witness Printer took 32.22 ms. Allocated memory is still 1.2 GB. Free memory was 922.3 MB in the beginning and 915.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:58:11,270 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 136.28 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 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 13.48 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 133.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1082.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.3 MB in the end (delta: 178.5 MB). Peak memory consumption was 178.5 MB. Max. memory is 11.5 GB. * Witness Printer took 32.22 ms. Allocated memory is still 1.2 GB. Free memory was 922.3 MB in the beginning and 915.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (((tmp < 4 || (pathlim <= tmp && tmp == p)) || !(0 == pathbuf)) || !(tmp == pathbuf)) || tmp < pathlim - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 26 SDtfs, 42 SDslu, 139 SDs, 0 SdLazy, 158 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 32 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 72 HoareAnnotationTreeSize, 11 FomulaSimplifications, 63 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 121 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 6308 SizeOfPredicates, 8 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 4/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...