./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i -s /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/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 0.1.25-f470102 [2019-12-07 20:20:33,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:20:33,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:20:33,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:20:33,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:20:33,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:20:33,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:20:33,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:20:33,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:20:33,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:20:33,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:20:33,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:20:33,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:20:33,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:20:33,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:20:33,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:20:33,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:20:33,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:20:33,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:20:33,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:20:33,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:20:33,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:20:33,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:20:33,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:20:33,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:20:33,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:20:33,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:20:33,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:20:33,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:20:33,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:20:33,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:20:33,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:20:33,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:20:33,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:20:33,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:20:33,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:20:33,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:20:33,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:20:33,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:20:33,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:20:33,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:20:33,130 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:20:33,142 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:20:33,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:20:33,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:20:33,143 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:20:33,143 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:20:33,143 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:20:33,143 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:20:33,143 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:20:33,143 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:20:33,144 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:20:33,144 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:20:33,144 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:20:33,144 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:20:33,144 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:20:33,144 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:20:33,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:20:33,145 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:20:33,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:20:33,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:20:33,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:20:33,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:20:33,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:20:33,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:20:33,146 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:20:33,146 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:20:33,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:20:33,146 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:20:33,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:20:33,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:20:33,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:20:33,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:20:33,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:20:33,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:20:33,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:20:33,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:20:33,147 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:20:33,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:20:33,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:20:33,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:20:33,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:20:33,148 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_98884137-ed6b-416a-a7d6-0c6d923a3ccb/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 [2019-12-07 20:20:33,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:20:33,260 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:20:33,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:20:33,263 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:20:33,263 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:20:33,263 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/bin/utaipan/../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2019-12-07 20:20:33,304 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/bin/utaipan/data/34d5aa53a/5a637fe6f8534b63b1892a7f0b86a77f/FLAGe69071122 [2019-12-07 20:20:33,622 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:20:33,623 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2019-12-07 20:20:33,626 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/bin/utaipan/data/34d5aa53a/5a637fe6f8534b63b1892a7f0b86a77f/FLAGe69071122 [2019-12-07 20:20:33,635 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/bin/utaipan/data/34d5aa53a/5a637fe6f8534b63b1892a7f0b86a77f [2019-12-07 20:20:33,636 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:20:33,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:20:33,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:20:33,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:20:33,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:20:33,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:20:33" (1/1) ... [2019-12-07 20:20:33,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581b80cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:20:33, skipping insertion in model container [2019-12-07 20:20:33,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:20:33" (1/1) ... [2019-12-07 20:20:33,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:20:33,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:20:33,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:20:33,793 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:20:33,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:20:33,813 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:20:33,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:20:33 WrapperNode [2019-12-07 20:20:33,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:20:33,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:20:33,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:20:33,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:20:33,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:20:33" (1/1) ... [2019-12-07 20:20:33,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:20:33" (1/1) ... [2019-12-07 20:20:33,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:20:33,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:20:33,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:20:33,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:20:33,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:20:33" (1/1) ... [2019-12-07 20:20:33,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:20:33" (1/1) ... [2019-12-07 20:20:33,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:20:33" (1/1) ... [2019-12-07 20:20:33,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:20:33" (1/1) ... [2019-12-07 20:20:33,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:20:33" (1/1) ... [2019-12-07 20:20:33,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:20:33" (1/1) ... [2019-12-07 20:20:33,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:20:33" (1/1) ... [2019-12-07 20:20:33,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:20:33,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:20:33,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:20:33,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:20:33,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:20:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/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 [2019-12-07 20:20:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 20:20:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:20:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:20:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:20:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 20:20:34,049 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:20:34,049 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 20:20:34,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:20:34 BoogieIcfgContainer [2019-12-07 20:20:34,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:20:34,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:20:34,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:20:34,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:20:34,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:20:33" (1/3) ... [2019-12-07 20:20:34,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305b696e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:20:34, skipping insertion in model container [2019-12-07 20:20:34,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:20:33" (2/3) ... [2019-12-07 20:20:34,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305b696e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:20:34, skipping insertion in model container [2019-12-07 20:20:34,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:20:34" (3/3) ... [2019-12-07 20:20:34,055 INFO L109 eAbstractionObserver]: Analyzing ICFG verisec_NetBSD-libc_loop.i [2019-12-07 20:20:34,061 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:20:34,065 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:20:34,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:20:34,087 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:20:34,087 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:20:34,087 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:20:34,087 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:20:34,087 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:20:34,087 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:20:34,087 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:20:34,087 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:20:34,096 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-12-07 20:20:34,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 20:20:34,100 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:20:34,101 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 20:20:34,102 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:20:34,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:20:34,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1916652, now seen corresponding path program 1 times [2019-12-07 20:20:34,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:20:34,112 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378092972] [2019-12-07 20:20:34,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:20:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:20:34,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:20:34,227 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378092972] [2019-12-07 20:20:34,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:20:34,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 20:20:34,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644055737] [2019-12-07 20:20:34,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:20:34,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:20:34,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:20:34,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:20:34,242 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2019-12-07 20:20:34,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:20:34,280 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2019-12-07 20:20:34,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:20:34,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-12-07 20:20:34,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:20:34,288 INFO L225 Difference]: With dead ends: 17 [2019-12-07 20:20:34,288 INFO L226 Difference]: Without dead ends: 9 [2019-12-07 20:20:34,291 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 [2019-12-07 20:20:34,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-12-07 20:20:34,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-12-07 20:20:34,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-12-07 20:20:34,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-12-07 20:20:34,314 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2019-12-07 20:20:34,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:20:34,315 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-12-07 20:20:34,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:20:34,315 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-12-07 20:20:34,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 20:20:34,315 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:20:34,315 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-12-07 20:20:34,315 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:20:34,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:20:34,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1269628337, now seen corresponding path program 1 times [2019-12-07 20:20:34,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:20:34,316 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380953072] [2019-12-07 20:20:34,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:20:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:20:34,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:20:34,378 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380953072] [2019-12-07 20:20:34,378 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137163339] [2019-12-07 20:20:34,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/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 [2019-12-07 20:20:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:20:34,413 INFO L264 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 26 conjunts are in the unsatisfiable core [2019-12-07 20:20:34,416 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:20:34,454 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:20:34,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:20:34,462 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:20:34,466 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:20:34,484 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:20:34,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:20:34,503 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [879984377] [2019-12-07 20:20:34,518 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2019-12-07 20:20:34,518 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 20:20:34,522 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 20:20:34,526 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 20:20:34,527 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 20:20:34,640 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-12-07 20:20:34,658 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-12-07 20:20:34,810 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 20:20:34,952 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-12-07 20:20:35,347 WARN L192 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2019-12-07 20:20:35,572 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 20:20:35,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 20:20:35,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 6] total 8 [2019-12-07 20:20:35,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595797905] [2019-12-07 20:20:35,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 20:20:35,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:20:35,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 20:20:35,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-12-07 20:20:35,575 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 9 states. [2019-12-07 20:20:35,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:20:35,603 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-12-07 20:20:35,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 20:20:35,604 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 7 [2019-12-07 20:20:35,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:20:35,605 INFO L225 Difference]: With dead ends: 15 [2019-12-07 20:20:35,605 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 20:20:35,606 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2019-12-07 20:20:35,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 20:20:35,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2019-12-07 20:20:35,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 20:20:35,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-12-07 20:20:35,609 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2019-12-07 20:20:35,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:20:35,609 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-12-07 20:20:35,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 20:20:35,610 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-12-07 20:20:35,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 20:20:35,610 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:20:35,610 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2019-12-07 20:20:35,811 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:20:35,812 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:20:35,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:20:35,812 INFO L82 PathProgramCache]: Analyzing trace with hash 2021002444, now seen corresponding path program 2 times [2019-12-07 20:20:35,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:20:35,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352151840] [2019-12-07 20:20:35,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:20:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:20:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:20:35,919 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 20:20:35,919 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:20:35,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:20:35 BoogieIcfgContainer [2019-12-07 20:20:35,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:20:35,945 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:20:35,945 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:20:35,945 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:20:35,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:20:34" (3/4) ... [2019-12-07 20:20:35,947 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:20:35,980 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_98884137-ed6b-416a-a7d6-0c6d923a3ccb/bin/utaipan/witness.graphml [2019-12-07 20:20:35,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:20:35,981 INFO L168 Benchmark]: Toolchain (without parser) took 2343.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 944.6 MB in the beginning and 972.0 MB in the end (delta: -27.4 MB). Peak memory consumption was 72.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:20:35,981 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:20:35,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -148.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:20:35,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:20:35,982 INFO L168 Benchmark]: Boogie Preprocessor took 14.84 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:20:35,982 INFO L168 Benchmark]: RCFGBuilder took 198.25 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:20:35,983 INFO L168 Benchmark]: TraceAbstraction took 1894.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 978.8 MB in the end (delta: 86.7 MB). Peak memory consumption was 86.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:20:35,983 INFO L168 Benchmark]: Witness Printer took 34.70 ms. Allocated memory is still 1.1 GB. Free memory was 978.8 MB in the beginning and 972.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:20:35,985 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -148.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.84 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 198.25 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1894.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 978.8 MB in the end (delta: 86.7 MB). Peak memory consumption was 86.7 MB. Max. memory is 11.5 GB. * Witness Printer took 34.70 ms. Allocated memory is still 1.1 GB. Free memory was 978.8 MB in the beginning and 972.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 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: 1.8s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.0s, 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, 0.8s 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, 0.1s 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...