./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/verisec_NetBSD-libc__loop_false-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_d61b7726-bb56-4190-92f0-3c9d18d967e3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/verisec_NetBSD-libc__loop_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/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 19c675897a6506757b73d61913c0ceb3a779b5c8 ............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 20:39:30,860 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 20:39:30,861 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 20:39:30,867 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 20:39:30,867 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 20:39:30,868 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 20:39:30,868 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 20:39:30,870 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 20:39:30,870 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 20:39:30,871 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 20:39:30,872 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 20:39:30,872 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 20:39:30,872 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 20:39:30,873 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 20:39:30,873 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 20:39:30,874 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 20:39:30,874 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 20:39:30,875 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 20:39:30,877 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 20:39:30,877 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 20:39:30,878 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 20:39:30,879 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 20:39:30,880 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 20:39:30,880 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 20:39:30,880 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 20:39:30,881 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 20:39:30,882 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 20:39:30,882 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 20:39:30,882 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 20:39:30,883 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 20:39:30,883 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 20:39:30,884 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 20:39:30,884 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 20:39:30,884 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 20:39:30,885 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 20:39:30,885 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 20:39:30,885 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 20:39:30,893 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 20:39:30,893 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 20:39:30,893 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 20:39:30,893 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 20:39:30,894 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 20:39:30,894 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 20:39:30,894 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 20:39:30,894 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 20:39:30,894 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 20:39:30,894 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 20:39:30,894 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 20:39:30,895 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 20:39:30,895 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 20:39:30,895 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 20:39:30,895 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 20:39:30,895 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 20:39:30,895 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 20:39:30,896 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 20:39:30,896 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 20:39:30,896 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 20:39:30,896 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 20:39:30,896 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 20:39:30,896 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 20:39:30,896 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 20:39:30,897 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 20:39:30,897 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 20:39:30,897 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 20:39:30,897 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 20:39:30,897 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 20:39:30,897 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 20:39:30,897 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 20:39:30,897 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 20:39:30,897 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 20:39:30,898 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 20:39:30,898 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 20:39:30,898 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 20:39:30,898 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_d61b7726-bb56-4190-92f0-3c9d18d967e3/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 -> 19c675897a6506757b73d61913c0ceb3a779b5c8 [2018-12-08 20:39:30,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 20:39:30,924 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 20:39:30,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 20:39:30,928 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 20:39:30,928 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 20:39:30,929 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/bin-2019/utaipan/../../sv-benchmarks/c/loops/verisec_NetBSD-libc__loop_false-unreach-call_true-termination.i [2018-12-08 20:39:30,968 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/bin-2019/utaipan/data/282641d3f/fb956662358e401d9f5523c5a62f36e4/FLAG4510a49fc [2018-12-08 20:39:31,261 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 20:39:31,262 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/sv-benchmarks/c/loops/verisec_NetBSD-libc__loop_false-unreach-call_true-termination.i [2018-12-08 20:39:31,265 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/bin-2019/utaipan/data/282641d3f/fb956662358e401d9f5523c5a62f36e4/FLAG4510a49fc [2018-12-08 20:39:31,273 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/bin-2019/utaipan/data/282641d3f/fb956662358e401d9f5523c5a62f36e4 [2018-12-08 20:39:31,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 20:39:31,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 20:39:31,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 20:39:31,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 20:39:31,278 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 20:39:31,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:39:31" (1/1) ... [2018-12-08 20:39:31,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d622ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:39:31, skipping insertion in model container [2018-12-08 20:39:31,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:39:31" (1/1) ... [2018-12-08 20:39:31,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 20:39:31,294 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 20:39:31,384 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:39:31,390 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 20:39:31,399 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:39:31,407 INFO L195 MainTranslator]: Completed translation [2018-12-08 20:39:31,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:39:31 WrapperNode [2018-12-08 20:39:31,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 20:39:31,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 20:39:31,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 20:39:31,408 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 20:39:31,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:39:31" (1/1) ... [2018-12-08 20:39:31,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:39:31" (1/1) ... [2018-12-08 20:39:31,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 20:39:31,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 20:39:31,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 20:39:31,427 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 20:39:31,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:39:31" (1/1) ... [2018-12-08 20:39:31,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:39:31" (1/1) ... [2018-12-08 20:39:31,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:39:31" (1/1) ... [2018-12-08 20:39:31,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:39:31" (1/1) ... [2018-12-08 20:39:31,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:39:31" (1/1) ... [2018-12-08 20:39:31,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:39:31" (1/1) ... [2018-12-08 20:39:31,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:39:31" (1/1) ... [2018-12-08 20:39:31,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 20:39:31,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 20:39:31,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 20:39:31,476 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 20:39:31,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:39:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/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 [2018-12-08 20:39:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 20:39:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 20:39:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 20:39:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 20:39:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2018-12-08 20:39:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2018-12-08 20:39:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 20:39:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 20:39:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 20:39:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 20:39:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-08 20:39:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-08 20:39:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 20:39:31,616 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 20:39:31,616 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 20:39:31,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:39:31 BoogieIcfgContainer [2018-12-08 20:39:31,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 20:39:31,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 20:39:31,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 20:39:31,619 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 20:39:31,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:39:31" (1/3) ... [2018-12-08 20:39:31,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8954867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:39:31, skipping insertion in model container [2018-12-08 20:39:31,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:39:31" (2/3) ... [2018-12-08 20:39:31,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8954867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:39:31, skipping insertion in model container [2018-12-08 20:39:31,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:39:31" (3/3) ... [2018-12-08 20:39:31,621 INFO L112 eAbstractionObserver]: Analyzing ICFG verisec_NetBSD-libc__loop_false-unreach-call_true-termination.i [2018-12-08 20:39:31,627 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 20:39:31,633 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 20:39:31,642 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 20:39:31,661 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 20:39:31,661 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 20:39:31,661 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 20:39:31,661 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 20:39:31,661 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 20:39:31,661 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 20:39:31,661 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 20:39:31,661 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 20:39:31,671 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-12-08 20:39:31,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 20:39:31,675 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:39:31,675 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:39:31,677 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:39:31,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:39:31,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1626450083, now seen corresponding path program 1 times [2018-12-08 20:39:31,681 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:39:31,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:39:31,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:39:31,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:39:31,711 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:39:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:39:31,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:39:31,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:39:31,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 20:39:31,841 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:39:31,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 20:39:31,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 20:39:31,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 20:39:31,854 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 7 states. [2018-12-08 20:39:31,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:39:31,949 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2018-12-08 20:39:31,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 20:39:31,951 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-12-08 20:39:31,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:39:31,956 INFO L225 Difference]: With dead ends: 55 [2018-12-08 20:39:31,956 INFO L226 Difference]: Without dead ends: 26 [2018-12-08 20:39:31,958 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 [2018-12-08 20:39:31,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-08 20:39:31,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2018-12-08 20:39:31,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-08 20:39:31,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-12-08 20:39:31,984 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2018-12-08 20:39:31,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:39:31,984 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-12-08 20:39:31,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 20:39:31,984 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-12-08 20:39:31,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 20:39:31,985 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:39:31,985 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:39:31,985 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:39:31,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:39:31,986 INFO L82 PathProgramCache]: Analyzing trace with hash -519824651, now seen corresponding path program 1 times [2018-12-08 20:39:31,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:39:31,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:39:31,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:39:31,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:39:31,987 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:39:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:39:32,081 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:39:32,082 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 20:39:32,082 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 20:39:32,082 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-12-08 20:39:32,084 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [10], [12], [14], [23], [27], [30], [32], [35], [37], [38], [39], [40], [41], [42], [44] [2018-12-08 20:39:32,108 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 20:39:32,108 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 20:39:32,198 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 20:39:32,199 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. [2018-12-08 20:39:32,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:39:32,204 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 20:39:32,204 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 20:39:32,204 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/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 [2018-12-08 20:39:32,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:39:32,210 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 20:39:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:39:32,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 20:39:32,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:39:32,321 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 20:39:32,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:39:32,438 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 20:39:32,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 18 [2018-12-08 20:39:32,438 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 20:39:32,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-08 20:39:32,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-08 20:39:32,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-12-08 20:39:32,439 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 14 states. [2018-12-08 20:39:32,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:39:32,554 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-12-08 20:39:32,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 20:39:32,554 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2018-12-08 20:39:32,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:39:32,556 INFO L225 Difference]: With dead ends: 34 [2018-12-08 20:39:32,556 INFO L226 Difference]: Without dead ends: 32 [2018-12-08 20:39:32,557 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2018-12-08 20:39:32,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-08 20:39:32,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-12-08 20:39:32,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-08 20:39:32,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-12-08 20:39:32,561 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 21 [2018-12-08 20:39:32,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:39:32,561 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-12-08 20:39:32,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-08 20:39:32,561 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-12-08 20:39:32,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 20:39:32,562 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:39:32,562 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:39:32,562 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:39:32,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:39:32,563 INFO L82 PathProgramCache]: Analyzing trace with hash -2027370867, now seen corresponding path program 2 times [2018-12-08 20:39:32,563 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:39:32,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:39:32,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:39:32,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:39:32,564 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:39:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 20:39:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 20:39:32,606 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 20:39:32,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:39:32 BoogieIcfgContainer [2018-12-08 20:39:32,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 20:39:32,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 20:39:32,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 20:39:32,634 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 20:39:32,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:39:31" (3/4) ... [2018-12-08 20:39:32,636 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 20:39:32,667 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d61b7726-bb56-4190-92f0-3c9d18d967e3/bin-2019/utaipan/witness.graphml [2018-12-08 20:39:32,667 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 20:39:32,668 INFO L168 Benchmark]: Toolchain (without parser) took 1393.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 961.4 MB in the beginning and 915.0 MB in the end (delta: 46.4 MB). Peak memory consumption was 145.5 MB. Max. memory is 11.5 GB. [2018-12-08 20:39:32,669 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-12-08 20:39:32,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 132.07 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 20:39:32,669 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.50 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 20:39:32,670 INFO L168 Benchmark]: Boogie Preprocessor took 48.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-08 20:39:32,670 INFO L168 Benchmark]: RCFGBuilder took 141.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-08 20:39:32,670 INFO L168 Benchmark]: TraceAbstraction took 1016.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 915.0 MB in the end (delta: 161.5 MB). Peak memory consumption was 161.5 MB. Max. memory is 11.5 GB. [2018-12-08 20:39:32,671 INFO L168 Benchmark]: Witness Printer took 33.56 ms. Allocated memory is still 1.1 GB. Free memory is still 915.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 20:39:32,672 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 132.07 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.50 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 141.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1016.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 915.0 MB in the end (delta: 161.5 MB). Peak memory consumption was 161.5 MB. Max. memory is 11.5 GB. * Witness Printer took 33.56 ms. Allocated memory is still 1.1 GB. Free memory is still 915.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] Char *tmp; VAL [\old(tmp)=11, \old(tmp)=13, tmp={0:0}] [L29] Char pathbuf[1 +1]; [L31] Char *bound = pathbuf + sizeof(pathbuf) - 1; [L33] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1 VAL [\old(tmp)=0, \old(tmp)=0, bound={10:28}, pathbuf={10:0}, tmp={10:4}] [L35] CALL glob2 (pathbuf, bound) VAL [\old(tmp)=0, \old(tmp)=0, pathbuf={10:0}, pathlim={10:28}, tmp={10:4}] [L16] Char *p; [L18] p = pathbuf VAL [\old(tmp)=0, \old(tmp)=0, p={10:0}, pathbuf={10:0}, pathbuf={10:0}, pathlim={10:28}, pathlim={10:28}, tmp={10:4}] [L18] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, p={10:0}, pathbuf={10:0}, pathbuf={10:0}, pathlim={10:28}, pathlim={10:28}, tmp={10:4}] [L20] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, tmp={10:4}] [L4] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, cond=1, tmp={10:4}] [L20] RET __VERIFIER_assert(p<=tmp) VAL [\old(tmp)=0, \old(tmp)=0, p={10:0}, pathbuf={10:0}, pathbuf={10:0}, pathlim={10:28}, pathlim={10:28}, tmp={10:4}] [L21] *p = 1 VAL [\old(tmp)=0, \old(tmp)=0, p={10:0}, pathbuf={10:0}, pathbuf={10:0}, pathlim={10:28}, pathlim={10:28}, tmp={10:4}] [L18] p++ VAL [\old(tmp)=0, \old(tmp)=0, p={10:4}, pathbuf={10:0}, pathbuf={10:0}, pathlim={10:28}, pathlim={10:28}, tmp={10:4}] [L18] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, p={10:4}, pathbuf={10:0}, pathbuf={10:0}, pathlim={10:28}, pathlim={10:28}, tmp={10:4}] [L20] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, tmp={10:4}] [L4] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, cond=1, tmp={10:4}] [L20] RET __VERIFIER_assert(p<=tmp) VAL [\old(tmp)=0, \old(tmp)=0, p={10:4}, pathbuf={10:0}, pathbuf={10:0}, pathlim={10:28}, pathlim={10:28}, tmp={10:4}] [L21] *p = 1 VAL [\old(tmp)=0, \old(tmp)=0, p={10:4}, pathbuf={10:0}, pathbuf={10:0}, pathlim={10:28}, pathlim={10:28}, tmp={10:4}] [L18] p++ VAL [\old(tmp)=0, \old(tmp)=0, p={10:8}, pathbuf={10:0}, pathbuf={10:0}, pathlim={10:28}, pathlim={10:28}, tmp={10:4}] [L18] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, p={10:8}, pathbuf={10:0}, pathbuf={10:0}, pathlim={10:28}, pathlim={10:28}, tmp={10:4}] [L20] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, tmp={10:4}] [L4] COND TRUE !(cond) VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, cond=0, tmp={10:4}] [L5] __VERIFIER_error() VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, cond=0, tmp={10:4}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. UNSAFE Result, 0.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 47 SDslu, 140 SDs, 0 SdLazy, 175 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=2, 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 6708 SizeOfPredicates, 8 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 3/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...