./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.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_737a92f0-0201-4c50-8292-5c8760bb4bd1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i -s /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/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 01c80fcdd0a0da14cc25a34188deb5573e4a4209 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:35:25,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:35:25,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:35:25,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:35:25,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:35:25,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:35:25,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:35:25,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:35:25,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:35:25,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:35:25,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:35:25,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:35:25,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:35:25,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:35:25,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:35:25,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:35:25,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:35:25,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:35:25,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:35:25,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:35:25,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:35:25,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:35:25,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:35:25,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:35:25,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:35:25,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:35:25,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:35:25,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:35:25,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:35:25,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:35:25,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:35:25,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:35:25,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:35:25,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:35:25,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:35:25,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:35:25,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:35:25,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:35:25,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:35:25,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:35:25,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:35:25,609 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:35:25,623 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:35:25,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:35:25,624 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:35:25,624 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:35:25,625 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:35:25,625 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:35:25,625 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:35:25,625 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:35:25,626 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:35:25,626 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:35:25,626 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:35:25,626 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:35:25,626 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:35:25,627 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:35:25,627 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:35:25,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:35:25,628 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:35:25,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:35:25,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:35:25,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:35:25,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:35:25,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:35:25,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:35:25,629 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:35:25,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:35:25,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:35:25,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:35:25,630 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:35:25,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:35:25,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:35:25,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:35:25,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:35:25,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:35:25,631 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:35:25,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:35:25,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:35:25,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:35:25,632 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_737a92f0-0201-4c50-8292-5c8760bb4bd1/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 -> 01c80fcdd0a0da14cc25a34188deb5573e4a4209 [2019-11-26 02:35:25,794 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:35:25,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:35:25,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:35:25,808 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:35:25,809 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:35:25,809 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/bin/utaipan/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i [2019-11-26 02:35:25,859 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/bin/utaipan/data/fc2731f2d/4b3956bccf1e4feebe9c996f5fe3b10e/FLAGd55083731 [2019-11-26 02:35:26,245 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:35:26,246 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/sv-benchmarks/c/loop-invgen/apache-get-tag.i [2019-11-26 02:35:26,251 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/bin/utaipan/data/fc2731f2d/4b3956bccf1e4feebe9c996f5fe3b10e/FLAGd55083731 [2019-11-26 02:35:26,267 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/bin/utaipan/data/fc2731f2d/4b3956bccf1e4feebe9c996f5fe3b10e [2019-11-26 02:35:26,270 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:35:26,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:35:26,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:35:26,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:35:26,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:35:26,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:35:26" (1/1) ... [2019-11-26 02:35:26,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf69054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26, skipping insertion in model container [2019-11-26 02:35:26,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:35:26" (1/1) ... [2019-11-26 02:35:26,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:35:26,305 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:35:26,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:35:26,492 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:35:26,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:35:26,581 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:35:26,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26 WrapperNode [2019-11-26 02:35:26,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:35:26,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:35:26,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:35:26,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:35:26,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26" (1/1) ... [2019-11-26 02:35:26,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26" (1/1) ... [2019-11-26 02:35:26,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:35:26,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:35:26,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:35:26,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:35:26,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26" (1/1) ... [2019-11-26 02:35:26,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26" (1/1) ... [2019-11-26 02:35:26,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26" (1/1) ... [2019-11-26 02:35:26,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26" (1/1) ... [2019-11-26 02:35:26,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26" (1/1) ... [2019-11-26 02:35:26,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26" (1/1) ... [2019-11-26 02:35:26,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26" (1/1) ... [2019-11-26 02:35:26,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:35:26,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:35:26,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:35:26,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:35:26,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/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 02:35:26,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:35:26,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:35:27,043 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:35:27,043 INFO L284 CfgBuilder]: Removed 38 assume(true) statements. [2019-11-26 02:35:27,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:35:27 BoogieIcfgContainer [2019-11-26 02:35:27,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:35:27,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:35:27,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:35:27,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:35:27,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:35:26" (1/3) ... [2019-11-26 02:35:27,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5e35f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:35:27, skipping insertion in model container [2019-11-26 02:35:27,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:26" (2/3) ... [2019-11-26 02:35:27,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5e35f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:35:27, skipping insertion in model container [2019-11-26 02:35:27,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:35:27" (3/3) ... [2019-11-26 02:35:27,051 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i [2019-11-26 02:35:27,060 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:35:27,067 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2019-11-26 02:35:27,076 INFO L249 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2019-11-26 02:35:27,098 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:35:27,098 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:35:27,098 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:35:27,099 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:35:27,099 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:35:27,099 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:35:27,099 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:35:27,099 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:35:27,117 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2019-11-26 02:35:27,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:35:27,121 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:27,122 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:35:27,122 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:27,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:27,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1149386529, now seen corresponding path program 1 times [2019-11-26 02:35:27,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:27,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54594387] [2019-11-26 02:35:27,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:27,259 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 02:35:27,260 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54594387] [2019-11-26 02:35:27,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:35:27,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:35:27,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224434505] [2019-11-26 02:35:27,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:35:27,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:27,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:35:27,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:35:27,281 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 4 states. [2019-11-26 02:35:27,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:27,473 INFO L93 Difference]: Finished difference Result 140 states and 191 transitions. [2019-11-26 02:35:27,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:35:27,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-11-26 02:35:27,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:27,487 INFO L225 Difference]: With dead ends: 140 [2019-11-26 02:35:27,487 INFO L226 Difference]: Without dead ends: 62 [2019-11-26 02:35:27,492 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 02:35:27,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-26 02:35:27,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2019-11-26 02:35:27,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-11-26 02:35:27,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2019-11-26 02:35:27,546 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 6 [2019-11-26 02:35:27,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:27,547 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2019-11-26 02:35:27,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:35:27,547 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2019-11-26 02:35:27,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:35:27,548 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:27,548 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:35:27,549 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:27,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:27,549 INFO L82 PathProgramCache]: Analyzing trace with hash 754015108, now seen corresponding path program 1 times [2019-11-26 02:35:27,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:27,550 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753335227] [2019-11-26 02:35:27,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:27,600 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 02:35:27,600 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753335227] [2019-11-26 02:35:27,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:35:27,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:35:27,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820203958] [2019-11-26 02:35:27,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:35:27,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:27,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:35:27,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:35:27,603 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 4 states. [2019-11-26 02:35:27,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:27,727 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2019-11-26 02:35:27,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:35:27,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-26 02:35:27,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:27,729 INFO L225 Difference]: With dead ends: 74 [2019-11-26 02:35:27,729 INFO L226 Difference]: Without dead ends: 55 [2019-11-26 02:35:27,730 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 02:35:27,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-26 02:35:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2019-11-26 02:35:27,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-26 02:35:27,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2019-11-26 02:35:27,738 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 8 [2019-11-26 02:35:27,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:27,738 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2019-11-26 02:35:27,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:35:27,739 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2019-11-26 02:35:27,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:35:27,740 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:27,740 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-26 02:35:27,740 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:27,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:27,741 INFO L82 PathProgramCache]: Analyzing trace with hash 186409915, now seen corresponding path program 1 times [2019-11-26 02:35:27,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:27,741 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012981904] [2019-11-26 02:35:27,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:27,816 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:35:27,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012981904] [2019-11-26 02:35:27,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285110888] [2019-11-26 02:35:27,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/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 02:35:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:27,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-26 02:35:27,877 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:35:27,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:28,054 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:28,066 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:35:28,067 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:35:28,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:28,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:28,166 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:35:28,166 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1934105848] [2019-11-26 02:35:28,208 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-11-26 02:35:28,208 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:35:28,213 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:35:28,219 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:35:28,219 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:35:28,529 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:35:28,902 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:35:28,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:35:28,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 16 [2019-11-26 02:35:28,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205438495] [2019-11-26 02:35:28,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-26 02:35:28,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:28,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-26 02:35:28,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2019-11-26 02:35:28,905 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 16 states. [2019-11-26 02:35:29,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:29,078 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2019-11-26 02:35:29,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:35:29,079 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 16 [2019-11-26 02:35:29,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:29,079 INFO L225 Difference]: With dead ends: 53 [2019-11-26 02:35:29,079 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:35:29,080 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=148, Invalid=554, Unknown=0, NotChecked=0, Total=702 [2019-11-26 02:35:29,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:35:29,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:35:29,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:35:29,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:35:29,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-11-26 02:35:29,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:29,081 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:35:29,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-26 02:35:29,082 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:35:29,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:35:29,288 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:35:29,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:35:29,525 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,526 INFO L444 ceAbstractionStarter]: For program point L52(lines 52 54) no Hoare annotation was computed. [2019-11-26 02:35:29,526 INFO L444 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-11-26 02:35:29,526 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,526 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:35:29,526 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,526 INFO L440 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,526 INFO L444 ceAbstractionStarter]: For program point L4-3(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,527 INFO L444 ceAbstractionStarter]: For program point L4-6(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,527 INFO L440 ceAbstractionStarter]: At program point L4-8(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,527 INFO L444 ceAbstractionStarter]: For program point L4-9(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,527 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,527 INFO L440 ceAbstractionStarter]: At program point L4-11(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,527 INFO L444 ceAbstractionStarter]: For program point L4-12(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,528 INFO L440 ceAbstractionStarter]: At program point L4-14(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,528 INFO L444 ceAbstractionStarter]: For program point L4-15(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,528 INFO L440 ceAbstractionStarter]: At program point L4-17(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,528 INFO L444 ceAbstractionStarter]: For program point L4-18(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,528 INFO L440 ceAbstractionStarter]: At program point L4-20(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,528 INFO L444 ceAbstractionStarter]: For program point L4-21(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,528 INFO L444 ceAbstractionStarter]: For program point L4-24(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,529 INFO L440 ceAbstractionStarter]: At program point L4-26(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,529 INFO L444 ceAbstractionStarter]: For program point L4-27(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,529 INFO L440 ceAbstractionStarter]: At program point L4-29(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,529 INFO L444 ceAbstractionStarter]: For program point L4-30(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,529 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,529 INFO L444 ceAbstractionStarter]: For program point L5-1(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,530 INFO L440 ceAbstractionStarter]: At program point L4-32(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,530 INFO L444 ceAbstractionStarter]: For program point L5-2(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,530 INFO L444 ceAbstractionStarter]: For program point L4-33(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,530 INFO L444 ceAbstractionStarter]: For program point L5-3(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,530 INFO L444 ceAbstractionStarter]: For program point L5-4(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,530 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,530 INFO L444 ceAbstractionStarter]: For program point L5-5(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,530 INFO L444 ceAbstractionStarter]: For program point L4-36(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,531 INFO L444 ceAbstractionStarter]: For program point L5-6(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,531 INFO L444 ceAbstractionStarter]: For program point L5-7(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,531 INFO L440 ceAbstractionStarter]: At program point L4-38(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,531 INFO L444 ceAbstractionStarter]: For program point L5-8(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,531 INFO L444 ceAbstractionStarter]: For program point L4-39(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,531 INFO L444 ceAbstractionStarter]: For program point L5-9(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,531 INFO L444 ceAbstractionStarter]: For program point L5-10(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,532 INFO L440 ceAbstractionStarter]: At program point L4-41(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,532 INFO L444 ceAbstractionStarter]: For program point L5-11(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,532 INFO L444 ceAbstractionStarter]: For program point L4-42(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,532 INFO L444 ceAbstractionStarter]: For program point L5-12(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,532 INFO L444 ceAbstractionStarter]: For program point L5-13(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,532 INFO L440 ceAbstractionStarter]: At program point L4-44(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,532 INFO L444 ceAbstractionStarter]: For program point L5-14(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,532 INFO L444 ceAbstractionStarter]: For program point L4-45(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:35:29,533 INFO L444 ceAbstractionStarter]: For program point L5-15(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,533 INFO L447 ceAbstractionStarter]: At program point L4-47(lines 3 8) the Hoare annotation is: true [2019-11-26 02:35:29,533 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 54) no Hoare annotation was computed. [2019-11-26 02:35:29,533 INFO L444 ceAbstractionStarter]: For program point L40-1(lines 40 54) no Hoare annotation was computed. [2019-11-26 02:35:29,533 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,533 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-11-26 02:35:29,533 INFO L444 ceAbstractionStarter]: For program point L41(lines 41 50) no Hoare annotation was computed. [2019-11-26 02:35:29,534 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:35:29,543 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,548 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,548 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,549 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,549 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,549 INFO L444 ceAbstractionStarter]: For program point L45(lines 45 49) no Hoare annotation was computed. [2019-11-26 02:35:29,549 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,549 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,549 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,550 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,550 INFO L444 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-26 02:35:29,550 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,551 INFO L440 ceAbstractionStarter]: At program point L34-2(lines 34 58) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 1 ULTIMATE.start_main_~tagbuf_len~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,551 INFO L444 ceAbstractionStarter]: For program point L34-3(lines 34 58) no Hoare annotation was computed. [2019-11-26 02:35:29,551 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:35:29,551 INFO L440 ceAbstractionStarter]: At program point L18-2(lines 18 30) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-26 02:35:29,552 INFO L444 ceAbstractionStarter]: For program point L18-3(lines 18 30) no Hoare annotation was computed. [2019-11-26 02:35:29,552 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2019-11-26 02:35:29,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:35:29 BoogieIcfgContainer [2019-11-26 02:35:29,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:35:29,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:35:29,573 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:35:29,573 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:35:29,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:35:27" (3/4) ... [2019-11-26 02:35:29,576 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:35:29,587 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2019-11-26 02:35:29,588 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:35:29,588 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:35:29,665 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_737a92f0-0201-4c50-8292-5c8760bb4bd1/bin/utaipan/witness.graphml [2019-11-26 02:35:29,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:35:29,667 INFO L168 Benchmark]: Toolchain (without parser) took 3394.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:35:29,668 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:35:29,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:29,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.87 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 02:35:29,669 INFO L168 Benchmark]: Boogie Preprocessor took 23.90 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 02:35:29,669 INFO L168 Benchmark]: RCFGBuilder took 408.09 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 02:35:29,669 INFO L168 Benchmark]: TraceAbstraction took 2526.83 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: -25.9 MB). Peak memory consumption was 237.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:29,670 INFO L168 Benchmark]: Witness Printer took 93.15 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: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:29,680 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 308.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.87 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. * Boogie Preprocessor took 23.90 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 408.09 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 2526.83 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: -25.9 MB). Peak memory consumption was 237.4 MB. Max. memory is 11.5 GB. * Witness Printer took 93.15 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: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (t <= tagbuf_len && !(0 == cond)) && 0 <= t - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: t <= tagbuf_len && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && 1 <= tagbuf_len) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (t <= tagbuf_len && !(0 == cond)) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (t <= tagbuf_len && !(0 == cond)) && 0 <= t - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 16 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 99 SDtfs, 198 SDslu, 77 SDs, 0 SdLazy, 171 SolverSat, 158 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 32 NumberOfFragments, 180 HoareAnnotationTreeSize, 15 FomulaSimplifications, 74 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 3593 SizeOfPredicates, 9 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 4/18 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 correct! Received shutdown request...