./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/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 49da897df5dcdfc1bc615bb8c40422792fce477f .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-5842f4b [2018-11-18 14:49:14,949 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:49:14,950 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:49:14,958 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:49:14,958 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:49:14,958 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:49:14,959 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:49:14,960 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:49:14,961 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:49:14,962 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:49:14,963 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:49:14,963 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:49:14,963 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:49:14,964 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:49:14,965 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:49:14,966 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:49:14,966 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:49:14,967 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:49:14,969 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:49:14,970 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:49:14,971 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:49:14,971 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:49:14,973 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:49:14,973 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:49:14,973 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:49:14,974 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:49:14,975 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:49:14,975 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:49:14,976 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:49:14,977 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:49:14,977 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:49:14,977 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:49:14,978 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:49:14,978 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:49:14,978 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:49:14,979 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:49:14,979 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 14:49:14,989 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:49:14,989 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:49:14,990 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:49:14,990 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 14:49:14,990 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:49:14,991 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:49:14,991 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:49:14,991 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:49:14,991 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:49:14,991 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:49:14,991 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:49:14,991 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:49:14,992 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:49:14,992 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:49:14,992 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:49:14,992 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:49:14,992 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:49:14,992 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:49:14,992 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:49:14,992 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:49:14,993 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:49:14,993 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:49:14,993 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:49:14,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:49:14,993 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:49:14,993 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:49:14,993 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:49:14,993 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:49:14,993 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:49:14,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:49:14,993 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_e3a53358-0768-4caa-944d-f89c92a288db/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 -> 49da897df5dcdfc1bc615bb8c40422792fce477f [2018-11-18 14:49:15,015 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:49:15,024 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:49:15,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:49:15,027 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:49:15,027 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:49:15,027 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/bin-2019/uautomizer/../../sv-benchmarks/c/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i [2018-11-18 14:49:15,065 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/bin-2019/uautomizer/data/3ffc0bae2/a1412f6aa3d546238c2aeaafbe92e485/FLAGf9e98c11b [2018-11-18 14:49:15,388 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:49:15,389 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/sv-benchmarks/c/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i [2018-11-18 14:49:15,393 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/bin-2019/uautomizer/data/3ffc0bae2/a1412f6aa3d546238c2aeaafbe92e485/FLAGf9e98c11b [2018-11-18 14:49:15,404 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/bin-2019/uautomizer/data/3ffc0bae2/a1412f6aa3d546238c2aeaafbe92e485 [2018-11-18 14:49:15,407 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:49:15,408 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:49:15,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:49:15,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:49:15,412 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:49:15,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:49:15" (1/1) ... [2018-11-18 14:49:15,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5587dbd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:15, skipping insertion in model container [2018-11-18 14:49:15,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:49:15" (1/1) ... [2018-11-18 14:49:15,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:49:15,444 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:49:15,569 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:49:15,574 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:49:15,591 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:49:15,603 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:49:15,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:15 WrapperNode [2018-11-18 14:49:15,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:49:15,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:49:15,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:49:15,604 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:49:15,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:15" (1/1) ... [2018-11-18 14:49:15,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:15" (1/1) ... [2018-11-18 14:49:15,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:15" (1/1) ... [2018-11-18 14:49:15,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:15" (1/1) ... [2018-11-18 14:49:15,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:15" (1/1) ... [2018-11-18 14:49:15,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:15" (1/1) ... [2018-11-18 14:49:15,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:15" (1/1) ... [2018-11-18 14:49:15,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:49:15,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:49:15,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:49:15,666 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:49:15,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/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 [2018-11-18 14:49:15,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:49:15,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:49:15,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 14:49:15,699 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2018-11-18 14:49:15,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:49:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 14:49:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 14:49:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2018-11-18 14:49:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2018-11-18 14:49:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2018-11-18 14:49:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2018-11-18 14:49:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr [2018-11-18 14:49:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2018-11-18 14:49:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2018-11-18 14:49:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2018-11-18 14:49:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2018-11-18 14:49:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2018-11-18 14:49:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2018-11-18 14:49:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2018-11-18 14:49:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2018-11-18 14:49:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2018-11-18 14:49:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure strrand [2018-11-18 14:49:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand [2018-11-18 14:49:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr [2018-11-18 14:49:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr [2018-11-18 14:49:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp [2018-11-18 14:49:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr [2018-11-18 14:49:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2018-11-18 14:49:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy [2018-11-18 14:49:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat [2018-11-18 14:49:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat [2018-11-18 14:49:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy [2018-11-18 14:49:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2018-11-18 14:49:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:49:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:49:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:49:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:49:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:49:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:49:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:49:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 14:49:15,928 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:49:15,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:49:15 BoogieIcfgContainer [2018-11-18 14:49:15,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:49:15,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:49:15,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:49:15,932 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:49:15,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:49:15" (1/3) ... [2018-11-18 14:49:15,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2818a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:49:15, skipping insertion in model container [2018-11-18 14:49:15,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:15" (2/3) ... [2018-11-18 14:49:15,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2818a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:49:15, skipping insertion in model container [2018-11-18 14:49:15,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:49:15" (3/3) ... [2018-11-18 14:49:15,935 INFO L112 eAbstractionObserver]: Analyzing ICFG verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i [2018-11-18 14:49:15,941 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:49:15,945 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:49:15,958 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:49:15,977 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:49:15,977 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:49:15,977 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:49:15,978 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:49:15,978 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:49:15,978 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:49:15,978 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:49:15,978 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:49:15,978 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:49:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-11-18 14:49:15,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 14:49:15,996 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:49:15,996 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:49:15,998 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:49:16,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:49:16,002 INFO L82 PathProgramCache]: Analyzing trace with hash 565940665, now seen corresponding path program 1 times [2018-11-18 14:49:16,003 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:49:16,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:49:16,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:49:16,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:49:16,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:49:16,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:49:16,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:49:16,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:49:16,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:49:16,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:49:16,132 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-11-18 14:49:16,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:49:16,152 INFO L93 Difference]: Finished difference Result 87 states and 117 transitions. [2018-11-18 14:49:16,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:49:16,153 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 14:49:16,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:49:16,160 INFO L225 Difference]: With dead ends: 87 [2018-11-18 14:49:16,160 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 14:49:16,162 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:49:16,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 14:49:16,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-18 14:49:16,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 14:49:16,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2018-11-18 14:49:16,185 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 24 [2018-11-18 14:49:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:49:16,185 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2018-11-18 14:49:16,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:49:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2018-11-18 14:49:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 14:49:16,186 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:49:16,186 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:49:16,186 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:49:16,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:49:16,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1249082240, now seen corresponding path program 1 times [2018-11-18 14:49:16,187 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:49:16,187 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:49:16,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:49:16,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:49:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:49:16,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:49:16,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:49:16,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:49:16,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:49:16,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:49:16,245 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand 3 states. [2018-11-18 14:49:16,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:49:16,265 INFO L93 Difference]: Finished difference Result 72 states and 91 transitions. [2018-11-18 14:49:16,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:49:16,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-11-18 14:49:16,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:49:16,267 INFO L225 Difference]: With dead ends: 72 [2018-11-18 14:49:16,267 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 14:49:16,269 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:49:16,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 14:49:16,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 14:49:16,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 14:49:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-11-18 14:49:16,274 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 30 [2018-11-18 14:49:16,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:49:16,274 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-11-18 14:49:16,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:49:16,274 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-11-18 14:49:16,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 14:49:16,275 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:49:16,275 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:49:16,275 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:49:16,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:49:16,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1457537154, now seen corresponding path program 1 times [2018-11-18 14:49:16,277 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:49:16,277 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:49:16,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:49:16,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:49:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:49:16,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:49:16,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:49:16,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:49:16,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:49:16,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:49:16,326 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 5 states. [2018-11-18 14:49:16,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:49:16,396 INFO L93 Difference]: Finished difference Result 100 states and 129 transitions. [2018-11-18 14:49:16,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:49:16,396 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-11-18 14:49:16,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:49:16,398 INFO L225 Difference]: With dead ends: 100 [2018-11-18 14:49:16,398 INFO L226 Difference]: Without dead ends: 68 [2018-11-18 14:49:16,398 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:49:16,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-11-18 14:49:16,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 50. [2018-11-18 14:49:16,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-18 14:49:16,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2018-11-18 14:49:16,406 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 30 [2018-11-18 14:49:16,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:49:16,407 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2018-11-18 14:49:16,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:49:16,407 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2018-11-18 14:49:16,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 14:49:16,407 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:49:16,407 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:49:16,408 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:49:16,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:49:16,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1005164478, now seen corresponding path program 1 times [2018-11-18 14:49:16,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:49:16,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:49:16,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:49:16,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:49:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:49:16,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:49:16,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:49:16,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:49:16,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:49:16,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:49:16,474 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand 6 states. [2018-11-18 14:49:16,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:49:16,618 INFO L93 Difference]: Finished difference Result 158 states and 206 transitions. [2018-11-18 14:49:16,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:49:16,619 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-11-18 14:49:16,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:49:16,620 INFO L225 Difference]: With dead ends: 158 [2018-11-18 14:49:16,620 INFO L226 Difference]: Without dead ends: 89 [2018-11-18 14:49:16,620 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:49:16,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-11-18 14:49:16,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 58. [2018-11-18 14:49:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 14:49:16,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 71 transitions. [2018-11-18 14:49:16,626 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 71 transitions. Word has length 30 [2018-11-18 14:49:16,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:49:16,626 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 71 transitions. [2018-11-18 14:49:16,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:49:16,626 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 71 transitions. [2018-11-18 14:49:16,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 14:49:16,627 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:49:16,627 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:49:16,627 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:49:16,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:49:16,627 INFO L82 PathProgramCache]: Analyzing trace with hash -2016281728, now seen corresponding path program 1 times [2018-11-18 14:49:16,627 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:49:16,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:49:16,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:49:16,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:49:16,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:49:16,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:49:16,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:49:16,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:49:16,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:49:16,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:49:16,684 INFO L87 Difference]: Start difference. First operand 58 states and 71 transitions. Second operand 5 states. [2018-11-18 14:49:16,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:49:16,767 INFO L93 Difference]: Finished difference Result 136 states and 173 transitions. [2018-11-18 14:49:16,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:49:16,767 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-11-18 14:49:16,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:49:16,768 INFO L225 Difference]: With dead ends: 136 [2018-11-18 14:49:16,769 INFO L226 Difference]: Without dead ends: 69 [2018-11-18 14:49:16,769 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:49:16,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-18 14:49:16,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 52. [2018-11-18 14:49:16,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-18 14:49:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2018-11-18 14:49:16,778 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 30 [2018-11-18 14:49:16,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:49:16,778 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2018-11-18 14:49:16,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:49:16,778 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2018-11-18 14:49:16,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 14:49:16,779 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:49:16,779 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:49:16,779 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:49:16,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:49:16,781 INFO L82 PathProgramCache]: Analyzing trace with hash -2038327567, now seen corresponding path program 1 times [2018-11-18 14:49:16,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:49:16,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:49:16,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:49:16,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:49:16,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 14:49:16,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:49:16,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:49:16,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:49:16,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:49:16,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:49:16,852 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand 7 states. [2018-11-18 14:49:16,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:49:16,960 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2018-11-18 14:49:16,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:49:16,961 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2018-11-18 14:49:16,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:49:16,962 INFO L225 Difference]: With dead ends: 160 [2018-11-18 14:49:16,962 INFO L226 Difference]: Without dead ends: 109 [2018-11-18 14:49:16,962 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:49:16,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-11-18 14:49:16,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 77. [2018-11-18 14:49:16,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-11-18 14:49:16,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2018-11-18 14:49:16,969 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 35 [2018-11-18 14:49:16,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:49:16,969 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2018-11-18 14:49:16,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:49:16,970 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2018-11-18 14:49:16,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 14:49:16,970 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:49:16,971 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:49:16,971 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:49:16,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:49:16,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1245522479, now seen corresponding path program 1 times [2018-11-18 14:49:16,971 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:49:16,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:49:16,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:49:16,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:49:17,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 14:49:17,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:49:17,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:49:17,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:49:17,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:49:17,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:49:17,053 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand 7 states. [2018-11-18 14:49:17,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:49:17,164 INFO L93 Difference]: Finished difference Result 112 states and 142 transitions. [2018-11-18 14:49:17,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:49:17,165 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2018-11-18 14:49:17,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:49:17,166 INFO L225 Difference]: With dead ends: 112 [2018-11-18 14:49:17,167 INFO L226 Difference]: Without dead ends: 110 [2018-11-18 14:49:17,167 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:49:17,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-11-18 14:49:17,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 99. [2018-11-18 14:49:17,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-11-18 14:49:17,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2018-11-18 14:49:17,177 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 35 [2018-11-18 14:49:17,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:49:17,177 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2018-11-18 14:49:17,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:49:17,177 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2018-11-18 14:49:17,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 14:49:17,178 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:49:17,178 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:49:17,178 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:49:17,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:49:17,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1032246282, now seen corresponding path program 1 times [2018-11-18 14:49:17,179 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:49:17,179 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:49:17,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:17,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:49:17,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:49:17,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 14:49:17,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:49:17,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:49:17,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 14:49:17,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 14:49:17,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:49:17,207 INFO L87 Difference]: Start difference. First operand 99 states and 126 transitions. Second operand 4 states. [2018-11-18 14:49:17,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:49:17,241 INFO L93 Difference]: Finished difference Result 159 states and 203 transitions. [2018-11-18 14:49:17,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 14:49:17,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-11-18 14:49:17,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:49:17,243 INFO L225 Difference]: With dead ends: 159 [2018-11-18 14:49:17,243 INFO L226 Difference]: Without dead ends: 109 [2018-11-18 14:49:17,244 INFO L604 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 [2018-11-18 14:49:17,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-11-18 14:49:17,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-11-18 14:49:17,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-11-18 14:49:17,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2018-11-18 14:49:17,251 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 136 transitions. Word has length 37 [2018-11-18 14:49:17,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:49:17,251 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 136 transitions. [2018-11-18 14:49:17,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 14:49:17,251 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 136 transitions. [2018-11-18 14:49:17,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 14:49:17,253 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:49:17,253 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:49:17,254 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:49:17,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:49:17,254 INFO L82 PathProgramCache]: Analyzing trace with hash -331181704, now seen corresponding path program 1 times [2018-11-18 14:49:17,254 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:49:17,254 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:49:17,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:17,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:49:17,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:49:17,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:49:17,327 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:49:17,327 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/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 [2018-11-18 14:49:17,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:49:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:49:17,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:49:17,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:49:17,401 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:49:17,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-11-18 14:49:17,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 14:49:17,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 14:49:17,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:49:17,402 INFO L87 Difference]: Start difference. First operand 109 states and 136 transitions. Second operand 8 states. [2018-11-18 14:49:17,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:49:17,473 INFO L93 Difference]: Finished difference Result 228 states and 285 transitions. [2018-11-18 14:49:17,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:49:17,473 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-11-18 14:49:17,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:49:17,474 INFO L225 Difference]: With dead ends: 228 [2018-11-18 14:49:17,474 INFO L226 Difference]: Without dead ends: 139 [2018-11-18 14:49:17,475 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-11-18 14:49:17,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-11-18 14:49:17,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 110. [2018-11-18 14:49:17,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-11-18 14:49:17,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 132 transitions. [2018-11-18 14:49:17,481 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 132 transitions. Word has length 37 [2018-11-18 14:49:17,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:49:17,481 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 132 transitions. [2018-11-18 14:49:17,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 14:49:17,482 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 132 transitions. [2018-11-18 14:49:17,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 14:49:17,483 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:49:17,483 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:49:17,483 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:49:17,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:49:17,483 INFO L82 PathProgramCache]: Analyzing trace with hash 611667945, now seen corresponding path program 2 times [2018-11-18 14:49:17,484 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:49:17,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:49:17,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:17,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:49:17,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:49:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:49:17,590 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:49:17,590 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:49:17,596 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 14:49:17,622 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 14:49:17,622 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 14:49:17,625 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:49:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:49:17,793 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:49:17,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2018-11-18 14:49:17,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 14:49:17,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 14:49:17,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2018-11-18 14:49:17,795 INFO L87 Difference]: Start difference. First operand 110 states and 132 transitions. Second operand 18 states. [2018-11-18 14:49:18,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:49:18,101 INFO L93 Difference]: Finished difference Result 244 states and 298 transitions. [2018-11-18 14:49:18,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 14:49:18,101 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 42 [2018-11-18 14:49:18,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:49:18,102 INFO L225 Difference]: With dead ends: 244 [2018-11-18 14:49:18,102 INFO L226 Difference]: Without dead ends: 191 [2018-11-18 14:49:18,103 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=505, Unknown=0, NotChecked=0, Total=650 [2018-11-18 14:49:18,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-11-18 14:49:18,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 137. [2018-11-18 14:49:18,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-11-18 14:49:18,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 167 transitions. [2018-11-18 14:49:18,110 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 167 transitions. Word has length 42 [2018-11-18 14:49:18,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:49:18,110 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 167 transitions. [2018-11-18 14:49:18,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 14:49:18,111 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 167 transitions. [2018-11-18 14:49:18,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 14:49:18,111 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:49:18,111 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:49:18,112 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:49:18,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:49:18,112 INFO L82 PathProgramCache]: Analyzing trace with hash -409400409, now seen corresponding path program 1 times [2018-11-18 14:49:18,112 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:49:18,112 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:49:18,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:18,113 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:49:18,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:49:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:49:18,200 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:49:18,200 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:49:18,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:49:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:49:18,231 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:49:18,337 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:49:18,353 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:49:18,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2018-11-18 14:49:18,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 14:49:18,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 14:49:18,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2018-11-18 14:49:18,354 INFO L87 Difference]: Start difference. First operand 137 states and 167 transitions. Second operand 16 states. [2018-11-18 14:49:18,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:49:18,576 INFO L93 Difference]: Finished difference Result 211 states and 255 transitions. [2018-11-18 14:49:18,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 14:49:18,576 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 42 [2018-11-18 14:49:18,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:49:18,577 INFO L225 Difference]: With dead ends: 211 [2018-11-18 14:49:18,577 INFO L226 Difference]: Without dead ends: 209 [2018-11-18 14:49:18,577 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2018-11-18 14:49:18,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-11-18 14:49:18,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 158. [2018-11-18 14:49:18,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-11-18 14:49:18,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 198 transitions. [2018-11-18 14:49:18,584 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 198 transitions. Word has length 42 [2018-11-18 14:49:18,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:49:18,584 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 198 transitions. [2018-11-18 14:49:18,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 14:49:18,584 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 198 transitions. [2018-11-18 14:49:18,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 14:49:18,585 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:49:18,585 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:49:18,586 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:49:18,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:49:18,586 INFO L82 PathProgramCache]: Analyzing trace with hash -352142107, now seen corresponding path program 1 times [2018-11-18 14:49:18,586 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:49:18,586 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:49:18,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:18,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:49:18,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:49:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:49:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:49:18,625 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:49:18,645 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,646 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,647 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,647 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,649 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,649 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,649 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,650 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,650 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:49:18 BoogieIcfgContainer [2018-11-18 14:49:18,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:49:18,659 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:49:18,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:49:18,659 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:49:18,659 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:49:15" (3/4) ... [2018-11-18 14:49:18,663 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 14:49:18,667 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,668 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,669 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,669 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,669 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,669 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,670 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,670 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,670 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 14:49:18,700 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e3a53358-0768-4caa-944d-f89c92a288db/bin-2019/uautomizer/witness.graphml [2018-11-18 14:49:18,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:49:18,701 INFO L168 Benchmark]: Toolchain (without parser) took 3293.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 960.3 MB in the beginning and 908.7 MB in the end (delta: 51.6 MB). Peak memory consumption was 184.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:49:18,702 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-11-18 14:49:18,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.83 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 946.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:49:18,703 INFO L168 Benchmark]: Boogie Preprocessor took 61.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:49:18,703 INFO L168 Benchmark]: RCFGBuilder took 262.81 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: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:49:18,703 INFO L168 Benchmark]: TraceAbstraction took 2729.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.1 MB in the end (delta: 190.5 MB). Peak memory consumption was 190.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:49:18,704 INFO L168 Benchmark]: Witness Printer took 41.69 ms. Allocated memory is still 1.2 GB. Free memory was 912.1 MB in the beginning and 908.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:49:18,705 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 194.83 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 946.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 262.81 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: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2729.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.1 MB in the end (delta: 190.5 MB). Peak memory consumption was 190.5 MB. Max. memory is 11.5 GB. * Witness Printer took 41.69 ms. Allocated memory is still 1.2 GB. Free memory was 912.1 MB in the beginning and 908.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * 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: [L75] FCALL char A [2 + 2 + 4 +1]; [L76] FCALL A[2 + 2 + 4] = 0 VAL [A={38:0}] [L77] CALL parse_expression_list (A) VAL [str={38:0}] [L49] int start=0, i=-1, j=-1; [L50] FCALL char str2[2]; VAL [i=-1, j=-1, start=0, str={38:0}, str={38:0}, str2={36:0}] [L51] COND FALSE !(!str) VAL [i=-1, j=-1, start=0, str={38:0}, str={38:0}, str2={36:0}] [L53] i++ [L54] FCALL str[i] [L55] case 0: VAL [i=0, j=-1, start=0, str={38:0}, str={38:0}, str2={36:0}, str[i]=1] [L70] EXPR, FCALL str[i] VAL [i=0, j=-1, start=0, str={38:0}, str={38:0}, str2={36:0}, str[i]=1] [L70] COND TRUE str[i] != 0 [L53] i++ [L54] FCALL str[i] [L55] case 0: VAL [i=1, j=-1, start=0, str={38:0}, str={38:0}, str2={36:0}, str[i]=1] [L70] EXPR, FCALL str[i] VAL [i=1, j=-1, start=0, str={38:0}, str={38:0}, str2={36:0}, str[i]=1] [L70] COND TRUE str[i] != 0 [L53] i++ [L54] FCALL str[i] [L55] case 0: VAL [i=2, j=-1, start=0, str={38:0}, str={38:0}, str2={36:0}, str[i]=0] [L56] EXPR, FCALL str[start] [L56] (str[start] == ' ') || (str[start] == '\t') [L56] EXPR, FCALL str[start] [L56] (str[start] == ' ') || (str[start] == '\t') VAL [(str[start] == ' ') || (str[start] == '\t')=0, i=2, j=-1, start=0, str={38:0}, str={38:0}, str2={36:0}, str[i]=0, str[start]=1, str[start]=1] [L56] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L57] EXPR, FCALL str[start] VAL [i=2, j=-1, start=0, str={38:0}, str={38:0}, str2={36:0}, str[i]=0, str[start]=1] [L57] COND FALSE !(str[start] == '"') [L58] j = i-1 VAL [i=2, j=1, start=0, str={38:0}, str={38:0}, str2={36:0}, str[i]=0] [L59] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L59] EXPR, FCALL str[j] [L59] EXPR (str[j] == ' ') || (str[j] == '\t') [L59] EXPR, FCALL str[j] [L59] EXPR (str[j] == ' ') || (str[j] == '\t') VAL [(0 < j) && ((str[j] == ' ') || (str[j] == '\t'))=1, (str[j] == ' ') || (str[j] == '\t')=0, i=2, j=1, start=0, str={38:0}, str={38:0}, str2={36:0}, str[i]=0, str[j]=1, str[j]=1] [L59] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) VAL [(0 < j) && ((str[j] == ' ') || (str[j] == '\t'))=0, (str[j] == ' ') || (str[j] == '\t')=0, i=2, j=1, start=0, str={38:0}, str={38:0}, str2={36:0}, str[i]=0, str[j]=1, str[j]=1] [L59] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t'))) [L60] (0 < j) && (str[j] == '"') [L60] EXPR, FCALL str[j] [L60] (0 < j) && (str[j] == '"') VAL [(0 < j) && (str[j] == '"')=0, i=2, j=1, start=0, str={38:0}, str={38:0}, str2={36:0}, str[i]=0, str[j]=1] [L60] COND FALSE !((0 < j) && (str[j] == '"')) [L61] COND TRUE start<=j [L62] FCALL r_strncpy(str2, str+start, j-start+1) [L63] CALL __VERIFIER_assert(j - start + 1 < 2) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. UNSAFE Result, 2.6s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 525 SDtfs, 880 SDslu, 1693 SDs, 0 SdLazy, 1153 SolverSat, 170 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 127 SyntacticMatches, 2 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=11, 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, 11 MinimizatonAttempts, 243 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 535 NumberOfCodeBlocks, 535 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 479 ConstructedInterpolants, 0 QuantifiedInterpolants, 61456 SizeOfPredicates, 8 NumberOfNonLiveVariables, 395 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 6/46 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...