./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/verisec_NetBSD-libc__loop_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/verisec_NetBSD-libc__loop_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 19c675897a6506757b73d61913c0ceb3a779b5c8 ................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 05:40:01,861 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:40:01,862 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:40:01,869 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:40:01,869 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:40:01,870 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:40:01,871 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:40:01,872 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:40:01,873 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:40:01,873 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:40:01,874 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:40:01,874 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:40:01,875 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:40:01,875 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:40:01,876 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:40:01,876 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:40:01,877 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:40:01,878 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:40:01,879 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:40:01,880 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:40:01,881 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:40:01,882 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:40:01,883 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:40:01,883 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:40:01,884 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:40:01,884 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:40:01,884 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:40:01,885 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:40:01,885 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:40:01,886 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:40:01,886 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:40:01,887 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:40:01,887 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:40:01,887 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:40:01,888 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:40:01,888 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:40:01,889 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 05:40:01,895 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:40:01,896 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:40:01,896 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:40:01,896 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 05:40:01,897 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 05:40:01,897 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 05:40:01,897 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 05:40:01,897 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:40:01,897 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:40:01,897 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:40:01,898 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:40:01,898 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:40:01,898 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:40:01,898 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:40:01,898 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:40:01,898 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:40:01,898 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:40:01,898 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:40:01,899 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:40:01,899 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:40:01,899 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:40:01,899 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:40:01,899 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:40:01,899 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:40:01,899 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:40:01,900 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:40:01,900 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 05:40:01,900 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:40:01,900 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:40:01,900 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19c675897a6506757b73d61913c0ceb3a779b5c8 [2018-11-10 05:40:01,923 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:40:01,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:40:01,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:40:01,935 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:40:01,936 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:40:01,936 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer/../../sv-benchmarks/c/loops/verisec_NetBSD-libc__loop_false-unreach-call_true-termination.i [2018-11-10 05:40:01,981 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer/data/8f9414b92/6149fe76aaed459a91419814fa6c5daa/FLAG44ba9fc25 [2018-11-10 05:40:02,379 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:40:02,379 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/sv-benchmarks/c/loops/verisec_NetBSD-libc__loop_false-unreach-call_true-termination.i [2018-11-10 05:40:02,383 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer/data/8f9414b92/6149fe76aaed459a91419814fa6c5daa/FLAG44ba9fc25 [2018-11-10 05:40:02,392 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer/data/8f9414b92/6149fe76aaed459a91419814fa6c5daa [2018-11-10 05:40:02,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:40:02,395 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 05:40:02,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:40:02,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:40:02,399 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:40:02,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:40:02" (1/1) ... [2018-11-10 05:40:02,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70607c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:02, skipping insertion in model container [2018-11-10 05:40:02,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:40:02" (1/1) ... [2018-11-10 05:40:02,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:40:02,425 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:40:02,524 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:40:02,530 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:40:02,540 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:40:02,550 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:40:02,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:02 WrapperNode [2018-11-10 05:40:02,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:40:02,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:40:02,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:40:02,550 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:40:02,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:02" (1/1) ... [2018-11-10 05:40:02,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:02" (1/1) ... [2018-11-10 05:40:02,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:02" (1/1) ... [2018-11-10 05:40:02,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:02" (1/1) ... [2018-11-10 05:40:02,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:02" (1/1) ... [2018-11-10 05:40:02,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:02" (1/1) ... [2018-11-10 05:40:02,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:02" (1/1) ... [2018-11-10 05:40:02,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:40:02,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:40:02,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:40:02,581 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:40:02,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:40:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:40:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:40:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 05:40:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2018-11-10 05:40:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:40:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 05:40:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 05:40:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2018-11-10 05:40:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 05:40:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:40:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 05:40:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 05:40:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:40:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:40:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 05:40:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 05:40:02,798 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:40:02,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:40:02 BoogieIcfgContainer [2018-11-10 05:40:02,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:40:02,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:40:02,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:40:02,802 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:40:02,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:40:02" (1/3) ... [2018-11-10 05:40:02,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cbb4138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:40:02, skipping insertion in model container [2018-11-10 05:40:02,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:02" (2/3) ... [2018-11-10 05:40:02,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cbb4138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:40:02, skipping insertion in model container [2018-11-10 05:40:02,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:40:02" (3/3) ... [2018-11-10 05:40:02,805 INFO L112 eAbstractionObserver]: Analyzing ICFG verisec_NetBSD-libc__loop_false-unreach-call_true-termination.i [2018-11-10 05:40:02,812 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:40:02,818 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:40:02,833 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:40:02,860 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 05:40:02,861 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:40:02,861 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:40:02,861 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:40:02,861 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:40:02,861 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:40:02,861 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:40:02,862 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:40:02,862 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:40:02,877 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-10 05:40:02,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 05:40:02,882 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:40:02,882 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:40:02,884 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:40:02,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:40:02,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1382068036, now seen corresponding path program 1 times [2018-11-10 05:40:02,891 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:40:02,891 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:40:02,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:02,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:40:02,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:40:03,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:40:03,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:40:03,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 05:40:03,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 05:40:03,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 05:40:03,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-10 05:40:03,147 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 8 states. [2018-11-10 05:40:03,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:40:03,281 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2018-11-10 05:40:03,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 05:40:03,282 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-11-10 05:40:03,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:40:03,289 INFO L225 Difference]: With dead ends: 63 [2018-11-10 05:40:03,289 INFO L226 Difference]: Without dead ends: 29 [2018-11-10 05:40:03,292 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-10 05:40:03,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-10 05:40:03,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-11-10 05:40:03,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 05:40:03,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-11-10 05:40:03,323 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 15 [2018-11-10 05:40:03,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:40:03,323 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-11-10 05:40:03,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 05:40:03,324 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-11-10 05:40:03,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 05:40:03,324 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:40:03,324 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:40:03,325 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:40:03,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:40:03,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1899527699, now seen corresponding path program 1 times [2018-11-10 05:40:03,325 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:40:03,325 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:40:03,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:03,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:40:03,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:40:03,457 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:40:03,457 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 05:40:03,457 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 05:40:03,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:40:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:40:03,514 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:40:03,672 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:40:03,689 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 05:40:03,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-11-10 05:40:03,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-10 05:40:03,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-10 05:40:03,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2018-11-10 05:40:03,691 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 15 states. [2018-11-10 05:40:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:40:03,825 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-11-10 05:40:03,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 05:40:03,825 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2018-11-10 05:40:03,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:40:03,828 INFO L225 Difference]: With dead ends: 38 [2018-11-10 05:40:03,828 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 05:40:03,828 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2018-11-10 05:40:03,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 05:40:03,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 05:40:03,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 05:40:03,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-11-10 05:40:03,833 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 24 [2018-11-10 05:40:03,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:40:03,833 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-11-10 05:40:03,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-10 05:40:03,833 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-11-10 05:40:03,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 05:40:03,834 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:40:03,834 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:40:03,834 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:40:03,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:40:03,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1263867868, now seen corresponding path program 2 times [2018-11-10 05:40:03,835 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:40:03,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:40:03,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:03,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:40:03,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:40:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:40:03,886 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 05:40:03,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:40:03 BoogieIcfgContainer [2018-11-10 05:40:03,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:40:03,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:40:03,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:40:03,915 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:40:03,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:40:02" (3/4) ... [2018-11-10 05:40:03,917 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 05:40:03,958 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e29143f7-6a59-4285-9003-11c8de89cfa9/bin-2019/uautomizer/witness.graphml [2018-11-10 05:40:03,958 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:40:03,958 INFO L168 Benchmark]: Toolchain (without parser) took 1564.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 960.3 MB in the beginning and 990.9 MB in the end (delta: -30.6 MB). Peak memory consumption was 105.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:40:03,960 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:40:03,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.62 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:40:03,960 INFO L168 Benchmark]: Boogie Preprocessor took 30.34 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:40:03,961 INFO L168 Benchmark]: RCFGBuilder took 217.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:40:03,961 INFO L168 Benchmark]: TraceAbstraction took 1114.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.2 MB in the end (delta: 123.2 MB). Peak memory consumption was 123.2 MB. Max. memory is 11.5 GB. [2018-11-10 05:40:03,961 INFO L168 Benchmark]: Witness Printer took 43.34 ms. Allocated memory is still 1.2 GB. Free memory was 996.2 MB in the beginning and 990.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:40:03,964 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 154.62 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.34 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 217.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1114.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.2 MB in the end (delta: 123.2 MB). Peak memory consumption was 123.2 MB. Max. memory is 11.5 GB. * Witness Printer took 43.34 ms. Allocated memory is still 1.2 GB. Free memory was 996.2 MB in the beginning and 990.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 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; VAL [\old(tmp)=11, \old(tmp)=13, tmp={0:0}] [L29] FCALL Char pathbuf[1 +1]; VAL [\old(tmp)=0, \old(tmp)=0, pathbuf={9:0}, tmp={0:0}] [L31] Char *bound = pathbuf + sizeof(pathbuf) - 1; [L33] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1 VAL [\old(tmp)=0, \old(tmp)=0, bound={9:28}, pathbuf={9:0}, tmp={9:4}] [L35] CALL glob2 (pathbuf, bound) VAL [\old(tmp)=0, \old(tmp)=0, pathbuf={9:0}, pathlim={9:28}, tmp={9:4}] [L16] Char *p; [L18] p = pathbuf VAL [\old(tmp)=0, \old(tmp)=0, p={9:0}, pathbuf={9:0}, pathbuf={9:0}, pathlim={9:28}, pathlim={9:28}, tmp={9:4}] [L18] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, p={9:0}, pathbuf={9:0}, pathbuf={9:0}, pathlim={9:28}, pathlim={9:28}, tmp={9:4}] [L20] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, tmp={9:4}] [L4] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, cond=1, tmp={9:4}] [L20] __VERIFIER_assert(p<=tmp) VAL [\old(tmp)=0, \old(tmp)=0, p={9:0}, pathbuf={9:0}, pathbuf={9:0}, pathlim={9:28}, pathlim={9:28}, tmp={9:4}] [L21] FCALL *p = 1 VAL [\old(tmp)=0, \old(tmp)=0, p={9:0}, pathbuf={9:0}, pathbuf={9:0}, pathlim={9:28}, pathlim={9:28}, tmp={9:4}] [L18] p++ VAL [\old(tmp)=0, \old(tmp)=0, p={9:4}, pathbuf={9:0}, pathbuf={9:0}, pathlim={9:28}, pathlim={9:28}, tmp={9:4}] [L18] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, p={9:4}, pathbuf={9:0}, pathbuf={9:0}, pathlim={9:28}, pathlim={9:28}, tmp={9:4}] [L20] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, tmp={9:4}] [L4] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, cond=1, tmp={9:4}] [L20] __VERIFIER_assert(p<=tmp) VAL [\old(tmp)=0, \old(tmp)=0, p={9:4}, pathbuf={9:0}, pathbuf={9:0}, pathlim={9:28}, pathlim={9:28}, tmp={9:4}] [L21] FCALL *p = 1 VAL [\old(tmp)=0, \old(tmp)=0, p={9:4}, pathbuf={9:0}, pathbuf={9:0}, pathlim={9:28}, pathlim={9:28}, tmp={9:4}] [L18] p++ VAL [\old(tmp)=0, \old(tmp)=0, p={9:8}, pathbuf={9:0}, pathbuf={9:0}, pathlim={9:28}, pathlim={9:28}, tmp={9:4}] [L18] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, p={9:8}, pathbuf={9:0}, pathbuf={9:0}, pathlim={9:28}, pathlim={9:28}, tmp={9:4}] [L20] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, tmp={9:4}] [L4] COND TRUE !(cond) VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, cond=0, tmp={9:4}] [L5] __VERIFIER_error() VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, cond=0, tmp={9:4}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. UNSAFE Result, 1.0s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 31 SDtfs, 64 SDslu, 162 SDs, 0 SdLazy, 170 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 6251 SizeOfPredicates, 8 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...