./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/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 0.1.24-6b5699a [2019-11-26 02:45:35,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:45:35,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:45:35,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:45:35,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:45:35,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:45:35,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:45:35,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:45:35,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:45:35,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:45:35,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:45:35,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:45:35,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:45:35,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:45:35,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:45:35,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:45:35,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:45:35,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:45:35,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:45:35,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:45:35,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:45:35,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:45:35,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:45:35,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:45:35,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:45:35,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:45:35,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:45:35,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:45:35,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:45:35,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:45:35,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:45:35,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:45:35,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:45:35,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:45:35,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:45:35,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:45:35,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:45:35,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:45:35,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:45:35,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:45:35,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:45:35,246 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:45:35,271 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:45:35,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:45:35,272 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:45:35,272 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:45:35,272 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:45:35,272 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:45:35,273 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:45:35,273 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:45:35,273 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:45:35,273 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:45:35,273 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:45:35,274 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:45:35,274 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:45:35,274 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:45:35,274 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:45:35,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:45:35,275 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:45:35,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:45:35,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:45:35,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:45:35,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:45:35,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:45:35,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:45:35,276 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:45:35,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:45:35,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:45:35,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:45:35,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:45:35,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:45:35,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:45:35,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:45:35,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:45:35,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:45:35,278 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:45:35,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:45:35,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:45:35,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:45:35,279 INFO L138 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/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/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 [2019-11-26 02:45:35,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:45:35,487 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:45:35,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:45:35,492 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:45:35,492 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:45:35,492 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/utaipan/../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2019-11-26 02:45:35,550 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/utaipan/data/e59e71bdf/7fd5cf42d9b748dd8cbf4d71bb5af5a4/FLAG9226251f0 [2019-11-26 02:45:35,942 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:45:35,943 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2019-11-26 02:45:35,949 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/utaipan/data/e59e71bdf/7fd5cf42d9b748dd8cbf4d71bb5af5a4/FLAG9226251f0 [2019-11-26 02:45:36,311 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/utaipan/data/e59e71bdf/7fd5cf42d9b748dd8cbf4d71bb5af5a4 [2019-11-26 02:45:36,314 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:45:36,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:45:36,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:45:36,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:45:36,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:45:36,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:45:36" (1/1) ... [2019-11-26 02:45:36,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67329db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:36, skipping insertion in model container [2019-11-26 02:45:36,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:45:36" (1/1) ... [2019-11-26 02:45:36,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:45:36,346 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:45:36,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:45:36,562 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:45:36,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:45:36,592 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:45:36,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:36 WrapperNode [2019-11-26 02:45:36,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:45:36,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:45:36,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:45:36,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:45:36,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:36" (1/1) ... [2019-11-26 02:45:36,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:36" (1/1) ... [2019-11-26 02:45:36,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:45:36,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:45:36,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:45:36,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:45:36,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:36" (1/1) ... [2019-11-26 02:45:36,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:36" (1/1) ... [2019-11-26 02:45:36,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:36" (1/1) ... [2019-11-26 02:45:36,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:36" (1/1) ... [2019-11-26 02:45:36,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:36" (1/1) ... [2019-11-26 02:45:36,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:36" (1/1) ... [2019-11-26 02:45:36,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:36" (1/1) ... [2019-11-26 02:45:36,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:45:36,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:45:36,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:45:36,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:45:36,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/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 [2019-11-26 02:45:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:45:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:45:36,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:45:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:45:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:45:36,982 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:45:36,983 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-26 02:45:36,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:45:36 BoogieIcfgContainer [2019-11-26 02:45:36,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:45:36,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:45:36,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:45:36,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:45:36,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:45:36" (1/3) ... [2019-11-26 02:45:36,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115946e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:45:36, skipping insertion in model container [2019-11-26 02:45:36,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:36" (2/3) ... [2019-11-26 02:45:36,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115946e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:45:36, skipping insertion in model container [2019-11-26 02:45:36,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:45:36" (3/3) ... [2019-11-26 02:45:36,991 INFO L109 eAbstractionObserver]: Analyzing ICFG verisec_NetBSD-libc_loop.i [2019-11-26 02:45:37,001 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:45:37,007 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:45:37,018 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:45:37,039 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:45:37,039 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:45:37,040 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:45:37,040 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:45:37,040 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:45:37,040 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:45:37,040 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:45:37,040 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:45:37,054 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-11-26 02:45:37,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:45:37,060 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:45:37,061 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:45:37,062 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:45:37,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:45:37,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1916652, now seen corresponding path program 1 times [2019-11-26 02:45:37,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:45:37,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205961262] [2019-11-26 02:45:37,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:45:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:45:37,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:45:37,255 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205961262] [2019-11-26 02:45:37,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:45:37,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:45:37,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014598844] [2019-11-26 02:45:37,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:45:37,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:45:37,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:45:37,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:45:37,274 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2019-11-26 02:45:37,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:45:37,347 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2019-11-26 02:45:37,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:45:37,349 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-26 02:45:37,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:45:37,356 INFO L225 Difference]: With dead ends: 17 [2019-11-26 02:45:37,357 INFO L226 Difference]: Without dead ends: 9 [2019-11-26 02:45:37,360 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:45:37,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-26 02:45:37,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-11-26 02:45:37,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-26 02:45:37,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-26 02:45:37,391 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2019-11-26 02:45:37,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:45:37,391 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-26 02:45:37,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:45:37,391 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-26 02:45:37,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:45:37,392 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:45:37,392 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-26 02:45:37,392 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:45:37,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:45:37,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1269628337, now seen corresponding path program 1 times [2019-11-26 02:45:37,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:45:37,393 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7295797] [2019-11-26 02:45:37,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:45:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:45:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:45:37,487 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7295797] [2019-11-26 02:45:37,487 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650421987] [2019-11-26 02:45:37,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:45:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:45:37,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-26 02:45:37,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:45:37,604 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:45:37,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:45:37,621 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:45:37,625 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:45:37,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:45:37,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:45:37,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [750920614] [2019-11-26 02:45:37,743 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2019-11-26 02:45:37,743 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:45:37,748 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:45:37,760 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:45:37,760 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:45:37,974 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-26 02:45:37,999 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-26 02:45:38,331 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:45:38,555 WARN L192 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-11-26 02:45:39,217 WARN L192 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2019-11-26 02:45:39,436 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-11-26 02:45:39,658 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-11-26 02:45:39,661 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:45:39,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:45:39,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 6] total 8 [2019-11-26 02:45:39,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154361847] [2019-11-26 02:45:39,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-26 02:45:39,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:45:39,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-26 02:45:39,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-11-26 02:45:39,664 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 9 states. [2019-11-26 02:45:39,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:45:39,713 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-11-26 02:45:39,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:45:39,715 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 7 [2019-11-26 02:45:39,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:45:39,715 INFO L225 Difference]: With dead ends: 15 [2019-11-26 02:45:39,716 INFO L226 Difference]: Without dead ends: 13 [2019-11-26 02:45:39,717 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2019-11-26 02:45:39,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-26 02:45:39,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2019-11-26 02:45:39,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-26 02:45:39,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-11-26 02:45:39,720 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2019-11-26 02:45:39,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:45:39,720 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-11-26 02:45:39,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-26 02:45:39,720 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-11-26 02:45:39,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:45:39,724 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:45:39,724 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2019-11-26 02:45:39,925 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:45:39,926 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:45:39,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:45:39,926 INFO L82 PathProgramCache]: Analyzing trace with hash 2021002444, now seen corresponding path program 2 times [2019-11-26 02:45:39,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:45:39,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303582983] [2019-11-26 02:45:39,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:45:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:45:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:45:40,000 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:45:40,000 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:45:40,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:45:40 BoogieIcfgContainer [2019-11-26 02:45:40,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:45:40,040 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:45:40,040 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:45:40,041 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:45:40,041 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:45:36" (3/4) ... [2019-11-26 02:45:40,047 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:45:40,110 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3f978b6c-3104-46c7-a826-deda701fed1a/bin/utaipan/witness.graphml [2019-11-26 02:45:40,110 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:45:40,111 INFO L168 Benchmark]: Toolchain (without parser) took 3796.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.2 MB in the beginning and 1.0 GB in the end (delta: -66.2 MB). Peak memory consumption was 69.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:45:40,112 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:45:40,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:45:40,113 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.84 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:45:40,113 INFO L168 Benchmark]: Boogie Preprocessor took 23.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:45:40,114 INFO L168 Benchmark]: RCFGBuilder took 333.38 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:45:40,115 INFO L168 Benchmark]: TraceAbstraction took 3054.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.1 MB). Peak memory consumption was 82.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:45:40,115 INFO L168 Benchmark]: Witness Printer took 69.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:45:40,120 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 277.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.84 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 333.38 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3054.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.1 MB). Peak memory consumption was 82.1 MB. Max. memory is 11.5 GB. * Witness Printer took 69.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. 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; [L29] Char pathbuf[1 +1]; [L31] Char *bound = pathbuf + sizeof(pathbuf) - 1; [L33] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1 [L16] Char *p; [L18] p = pathbuf VAL [tmp={2:4}] [L18] COND TRUE p <= pathlim [L4] COND FALSE !(!(cond)) VAL [tmp={2:4}] [L21] *p = 1 [L18] p++ VAL [tmp={2:4}] [L18] COND TRUE p <= pathlim [L4] COND FALSE !(!(cond)) VAL [tmp={2:4}] [L21] *p = 1 [L18] p++ VAL [tmp={2:4}] [L18] COND TRUE p <= pathlim [L4] COND TRUE !(cond) VAL [tmp={2:4}] [L5] __VERIFIER_error() VAL [tmp={2:4}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 18 SDslu, 15 SDs, 0 SdLazy, 28 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 804 SizeOfPredicates, 14 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...