./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/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 1b89be727e1b941b152f4b6e505aae7e5221fdd7 .......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/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 1b89be727e1b941b152f4b6e505aae7e5221fdd7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:32:01,224 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:32:01,225 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:32:01,230 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:32:01,231 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:32:01,231 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:32:01,232 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:32:01,233 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:32:01,234 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:32:01,234 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:32:01,235 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:32:01,235 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:32:01,236 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:32:01,236 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:32:01,237 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:32:01,238 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:32:01,238 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:32:01,240 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:32:01,241 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:32:01,242 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:32:01,243 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:32:01,243 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:32:01,245 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:32:01,245 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:32:01,245 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:32:01,246 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:32:01,246 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:32:01,247 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:32:01,247 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:32:01,248 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:32:01,248 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:32:01,248 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:32:01,248 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:32:01,248 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:32:01,249 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:32:01,249 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:32:01,249 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 12:32:01,256 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:32:01,256 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:32:01,257 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:32:01,257 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 12:32:01,257 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:32:01,257 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:32:01,257 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 12:32:01,257 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:32:01,257 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:32:01,258 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:32:01,258 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:32:01,258 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:32:01,258 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:32:01,258 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:32:01,258 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:32:01,258 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:32:01,258 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:32:01,258 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:32:01,259 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:32:01,259 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:32:01,259 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:32:01,259 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:32:01,259 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:32:01,259 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:32:01,259 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:32:01,259 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:32:01,260 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 12:32:01,260 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:32:01,260 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:32:01,260 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_45d4e572-8a08-4da9-bea2-a325e77e64c8/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 -> 1b89be727e1b941b152f4b6e505aae7e5221fdd7 [2018-11-10 12:32:01,282 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:32:01,291 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:32:01,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:32:01,295 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:32:01,295 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:32:01,296 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-11-10 12:32:01,340 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/data/40cb0efe9/04f3d374b0c14a4db9bafa22242ff109/FLAG6b9eb6bb9 [2018-11-10 12:32:01,701 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:32:01,702 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-11-10 12:32:01,711 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/data/40cb0efe9/04f3d374b0c14a4db9bafa22242ff109/FLAG6b9eb6bb9 [2018-11-10 12:32:01,721 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/data/40cb0efe9/04f3d374b0c14a4db9bafa22242ff109 [2018-11-10 12:32:01,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:32:01,724 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 12:32:01,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:32:01,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:32:01,727 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:32:01,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:32:01" (1/1) ... [2018-11-10 12:32:01,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c38c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:01, skipping insertion in model container [2018-11-10 12:32:01,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:32:01" (1/1) ... [2018-11-10 12:32:01,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:32:01,763 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:32:01,953 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:32:01,957 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:32:01,979 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:32:02,018 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:32:02,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:02 WrapperNode [2018-11-10 12:32:02,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:32:02,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:32:02,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:32:02,020 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:32:02,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:02" (1/1) ... [2018-11-10 12:32:02,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:02" (1/1) ... [2018-11-10 12:32:02,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:02" (1/1) ... [2018-11-10 12:32:02,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:02" (1/1) ... [2018-11-10 12:32:02,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:02" (1/1) ... [2018-11-10 12:32:02,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:02" (1/1) ... [2018-11-10 12:32:02,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:02" (1/1) ... [2018-11-10 12:32:02,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:32:02,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:32:02,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:32:02,091 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:32:02,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:32:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:32:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:32:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-10 12:32:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2018-11-10 12:32:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:32:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2018-11-10 12:32:02,127 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2018-11-10 12:32:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 12:32:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-10 12:32:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-10 12:32:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-10 12:32:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-10 12:32:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-10 12:32:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-10 12:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-10 12:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-10 12:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-10 12:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-10 12:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-10 12:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-10 12:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-10 12:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-10 12:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-10 12:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-10 12:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-10 12:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-10 12:32:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-10 12:32:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-10 12:32:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-10 12:32:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-10 12:32:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-10 12:32:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-10 12:32:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-10 12:32:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-10 12:32:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-10 12:32:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-10 12:32:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-10 12:32:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-10 12:32:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-10 12:32:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-10 12:32:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-10 12:32:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-10 12:32:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-10 12:32:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-10 12:32:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-10 12:32:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-10 12:32:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-10 12:32:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-10 12:32:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-10 12:32:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-10 12:32:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-10 12:32:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-10 12:32:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-10 12:32:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-10 12:32:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-10 12:32:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-10 12:32:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-10 12:32:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-10 12:32:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-10 12:32:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-10 12:32:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-10 12:32:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-10 12:32:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-10 12:32:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-10 12:32:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-10 12:32:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-10 12:32:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-10 12:32:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-10 12:32:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-10 12:32:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-10 12:32:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-10 12:32:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-10 12:32:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-10 12:32:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-10 12:32:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-10 12:32:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-10 12:32:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-10 12:32:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-10 12:32:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-10 12:32:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-10 12:32:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-10 12:32:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2018-11-10 12:32:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-10 12:32:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-10 12:32:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2018-11-10 12:32:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2018-11-10 12:32:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2018-11-10 12:32:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2018-11-10 12:32:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2018-11-10 12:32:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2018-11-10 12:32:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2018-11-10 12:32:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2018-11-10 12:32:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2018-11-10 12:32:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2018-11-10 12:32:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2018-11-10 12:32:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure open [2018-11-10 12:32:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2018-11-10 12:32:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2018-11-10 12:32:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2018-11-10 12:32:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2018-11-10 12:32:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2018-11-10 12:32:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2018-11-10 12:32:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure read [2018-11-10 12:32:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 12:32:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2018-11-10 12:32:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2018-11-10 12:32:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:32:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 12:32:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:32:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:32:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 12:32:02,397 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:32:02,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:32:02 BoogieIcfgContainer [2018-11-10 12:32:02,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:32:02,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:32:02,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:32:02,400 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:32:02,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:32:01" (1/3) ... [2018-11-10 12:32:02,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:32:02, skipping insertion in model container [2018-11-10 12:32:02,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:02" (2/3) ... [2018-11-10 12:32:02,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:32:02, skipping insertion in model container [2018-11-10 12:32:02,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:32:02" (3/3) ... [2018-11-10 12:32:02,402 INFO L112 eAbstractionObserver]: Analyzing ICFG fo_test_true-termination.c_false-unreach-call.i [2018-11-10 12:32:02,409 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:32:02,414 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:32:02,422 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:32:02,440 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:32:02,440 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:32:02,440 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:32:02,440 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:32:02,440 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:32:02,441 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:32:02,441 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:32:02,441 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:32:02,441 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:32:02,453 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-10 12:32:02,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 12:32:02,458 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:32:02,458 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] [2018-11-10 12:32:02,460 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:32:02,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:32:02,464 INFO L82 PathProgramCache]: Analyzing trace with hash 272317077, now seen corresponding path program 1 times [2018-11-10 12:32:02,466 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:32:02,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:32:02,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:32:02,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:32:02,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:32:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:32:02,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:32:02,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:32:02,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 12:32:02,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 12:32:02,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 12:32:02,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:32:02,589 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2018-11-10 12:32:02,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:32:02,612 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2018-11-10 12:32:02,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 12:32:02,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-11-10 12:32:02,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:32:02,619 INFO L225 Difference]: With dead ends: 55 [2018-11-10 12:32:02,619 INFO L226 Difference]: Without dead ends: 23 [2018-11-10 12:32:02,622 INFO L605 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 [2018-11-10 12:32:02,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-10 12:32:02,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-10 12:32:02,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-10 12:32:02,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-11-10 12:32:02,643 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 22 [2018-11-10 12:32:02,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:32:02,644 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-11-10 12:32:02,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 12:32:02,644 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-11-10 12:32:02,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 12:32:02,644 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:32:02,644 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] [2018-11-10 12:32:02,644 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:32:02,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:32:02,645 INFO L82 PathProgramCache]: Analyzing trace with hash 530482515, now seen corresponding path program 1 times [2018-11-10 12:32:02,645 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:32:02,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:32:02,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:32:02,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:32:02,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:32:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:32:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:32:02,691 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:32:02,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:32:02 BoogieIcfgContainer [2018-11-10 12:32:02,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:32:02,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:32:02,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:32:02,716 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:32:02,716 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:32:02" (3/4) ... [2018-11-10 12:32:02,719 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 12:32:02,719 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:32:02,720 INFO L168 Benchmark]: Toolchain (without parser) took 996.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -97.2 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:32:02,721 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:32:02,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.61 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 925.4 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. [2018-11-10 12:32:02,721 INFO L168 Benchmark]: Boogie Preprocessor took 70.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 925.4 MB in the beginning and 1.1 GB in the end (delta: -208.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:32:02,722 INFO L168 Benchmark]: RCFGBuilder took 306.86 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: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. [2018-11-10 12:32:02,723 INFO L168 Benchmark]: TraceAbstraction took 317.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-11-10 12:32:02,723 INFO L168 Benchmark]: Witness Printer took 3.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:32:02,725 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 294.61 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 925.4 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 925.4 MB in the beginning and 1.1 GB in the end (delta: -208.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 306.86 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: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 317.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 960]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1158. Possible FailurePath: [L1158] EXPR, FCALL "unknown" VAL ["unknown"={106:0}, \old("unknown")=102, \old("unknown")=109, \old(globalState)=105, globalState=105] [L1152] int globalState = 0; VAL ["unknown"={106:0}, \old("unknown")=109, \old("unknown")=102, \old(globalState)=105, globalState=0] [L1158] CALL, EXPR l_open("unknown",00) VAL ["unknown"={106:0}, \old(flags)=0, \old(globalState)=0, file={106:0}, globalState=0] [L1170] int fd = open(file,flags); VAL ["unknown"={106:0}, \old(flags)=0, \old(globalState)=0, fd=0, file={106:0}, file={106:0}, flags=0, globalState=0, open(file,flags)=0] [L1171] COND FALSE !(fd>0) VAL ["unknown"={106:0}, \old(flags)=0, \old(globalState)=0, fd=0, file={106:0}, file={106:0}, flags=0, globalState=0, open(file,flags)=0] [L1172] RET return fd; VAL ["unknown"={106:0}, \old(flags)=0, \old(globalState)=0, \result=0, fd=0, file={106:0}, file={106:0}, flags=0, globalState=0, open(file,flags)=0] [L1158] EXPR l_open("unknown",00) VAL ["unknown"={106:0}, \old(argc)=103, \old(globalState)=0, argc=103, argv={110:104}, argv={110:104}, globalState=0, l_open("unknown",00)=0] [L1158] int file = l_open("unknown",00); [L1159] EXPR, FCALL malloc(sizeof(char)*100) VAL ["unknown"={106:0}, \old(argc)=103, \old(globalState)=0, argc=103, argv={110:104}, argv={110:104}, file=0, globalState=0, malloc(sizeof(char)*100)={107:0}] [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); VAL ["unknown"={106:0}, \old(argc)=103, \old(globalState)=0, argc=103, argv={110:104}, argv={110:104}, cbuf={107:0}, file=0, globalState=0, malloc(sizeof(char)*100)={107:0}] [L1160] CALL l_read(file,cbuf,99) VAL ["unknown"={106:0}, \old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={107:0}, globalState=0] [L1165] COND FALSE !((globalState == 1) ? (0) : __blast_assert ()) VAL ["unknown"={106:0}, \old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={107:0}, cbuf={107:0}, count=99, fd=0, globalState=0] [L1165] CALL __blast_assert () VAL ["unknown"={106:0}, \old(globalState)=0, globalState=0] [L960] __VERIFIER_error() VAL ["unknown"={106:0}, \old(globalState)=0, globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 10 SDslu, 20 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 819 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:32:04,155 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:32:04,156 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:32:04,164 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:32:04,165 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:32:04,165 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:32:04,166 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:32:04,167 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:32:04,168 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:32:04,169 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:32:04,169 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:32:04,170 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:32:04,170 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:32:04,171 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:32:04,172 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:32:04,172 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:32:04,173 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:32:04,174 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:32:04,175 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:32:04,176 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:32:04,177 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:32:04,178 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:32:04,180 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:32:04,180 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:32:04,180 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:32:04,181 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:32:04,182 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:32:04,182 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:32:04,183 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:32:04,184 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:32:04,184 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:32:04,184 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:32:04,184 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:32:04,184 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:32:04,185 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:32:04,186 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:32:04,186 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 12:32:04,196 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:32:04,196 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:32:04,197 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:32:04,197 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 12:32:04,198 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:32:04,198 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:32:04,198 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 12:32:04,198 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:32:04,199 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:32:04,199 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:32:04,199 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:32:04,199 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:32:04,199 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:32:04,199 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:32:04,199 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 12:32:04,199 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 12:32:04,200 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:32:04,200 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:32:04,200 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:32:04,200 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:32:04,200 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:32:04,200 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:32:04,200 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:32:04,201 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:32:04,201 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:32:04,201 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:32:04,201 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:32:04,201 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 12:32:04,203 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:32:04,203 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 12:32:04,203 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 12:32:04,204 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_45d4e572-8a08-4da9-bea2-a325e77e64c8/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 -> 1b89be727e1b941b152f4b6e505aae7e5221fdd7 [2018-11-10 12:32:04,232 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:32:04,241 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:32:04,243 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:32:04,244 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:32:04,245 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:32:04,245 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-11-10 12:32:04,280 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/data/229854340/26b456148e884a5c98e17c546cdb624d/FLAG3bbefad52 [2018-11-10 12:32:04,600 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:32:04,600 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-11-10 12:32:04,607 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/data/229854340/26b456148e884a5c98e17c546cdb624d/FLAG3bbefad52 [2018-11-10 12:32:04,616 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/data/229854340/26b456148e884a5c98e17c546cdb624d [2018-11-10 12:32:04,618 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:32:04,619 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 12:32:04,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:32:04,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:32:04,623 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:32:04,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:32:04" (1/1) ... [2018-11-10 12:32:04,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@467442da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:04, skipping insertion in model container [2018-11-10 12:32:04,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:32:04" (1/1) ... [2018-11-10 12:32:04,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:32:04,665 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:32:04,878 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:32:04,885 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:32:04,912 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:32:04,957 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:32:04,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:04 WrapperNode [2018-11-10 12:32:04,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:32:04,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:32:04,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:32:04,958 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:32:04,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:04" (1/1) ... [2018-11-10 12:32:04,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:04" (1/1) ... [2018-11-10 12:32:04,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:04" (1/1) ... [2018-11-10 12:32:04,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:04" (1/1) ... [2018-11-10 12:32:04,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:04" (1/1) ... [2018-11-10 12:32:04,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:04" (1/1) ... [2018-11-10 12:32:04,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:04" (1/1) ... [2018-11-10 12:32:04,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:32:04,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:32:04,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:32:04,990 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:32:04,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:32:05,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:32:05,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:32:05,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-10 12:32:05,066 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2018-11-10 12:32:05,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:32:05,066 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2018-11-10 12:32:05,066 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2018-11-10 12:32:05,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 12:32:05,066 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-10 12:32:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-10 12:32:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-10 12:32:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-10 12:32:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-10 12:32:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-10 12:32:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-10 12:32:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-10 12:32:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-10 12:32:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-10 12:32:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-10 12:32:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-10 12:32:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-10 12:32:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-10 12:32:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-10 12:32:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-10 12:32:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-10 12:32:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-10 12:32:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-10 12:32:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-10 12:32:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-10 12:32:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-10 12:32:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-10 12:32:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-10 12:32:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-10 12:32:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-10 12:32:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-10 12:32:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-10 12:32:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-10 12:32:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-10 12:32:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-10 12:32:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-10 12:32:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-10 12:32:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-10 12:32:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-10 12:32:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-10 12:32:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-10 12:32:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-10 12:32:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-10 12:32:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-10 12:32:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-10 12:32:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-10 12:32:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-10 12:32:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-10 12:32:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-10 12:32:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-10 12:32:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-10 12:32:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-10 12:32:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-10 12:32:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-10 12:32:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-10 12:32:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-10 12:32:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-10 12:32:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-10 12:32:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-10 12:32:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-10 12:32:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-10 12:32:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-10 12:32:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-10 12:32:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-10 12:32:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-10 12:32:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-10 12:32:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-10 12:32:05,074 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-10 12:32:05,074 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-10 12:32:05,074 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-10 12:32:05,074 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-10 12:32:05,074 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-10 12:32:05,074 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-10 12:32:05,074 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-10 12:32:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-10 12:32:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-10 12:32:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-10 12:32:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-10 12:32:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-10 12:32:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-10 12:32:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-10 12:32:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-10 12:32:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-10 12:32:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-10 12:32:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-10 12:32:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-10 12:32:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-10 12:32:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-10 12:32:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-10 12:32:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-10 12:32:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-10 12:32:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-10 12:32:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-10 12:32:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-10 12:32:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-10 12:32:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-10 12:32:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-10 12:32:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-10 12:32:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-10 12:32:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-10 12:32:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-10 12:32:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-10 12:32:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-10 12:32:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2018-11-10 12:32:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-10 12:32:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-10 12:32:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2018-11-10 12:32:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2018-11-10 12:32:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2018-11-10 12:32:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2018-11-10 12:32:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2018-11-10 12:32:05,079 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2018-11-10 12:32:05,079 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2018-11-10 12:32:05,079 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2018-11-10 12:32:05,079 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2018-11-10 12:32:05,079 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2018-11-10 12:32:05,079 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2018-11-10 12:32:05,079 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2018-11-10 12:32:05,079 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2018-11-10 12:32:05,079 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2018-11-10 12:32:05,079 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2018-11-10 12:32:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2018-11-10 12:32:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2018-11-10 12:32:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2018-11-10 12:32:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2018-11-10 12:32:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2018-11-10 12:32:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2018-11-10 12:32:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2018-11-10 12:32:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2018-11-10 12:32:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2018-11-10 12:32:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure open [2018-11-10 12:32:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2018-11-10 12:32:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2018-11-10 12:32:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2018-11-10 12:32:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2018-11-10 12:32:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2018-11-10 12:32:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2018-11-10 12:32:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure read [2018-11-10 12:32:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 12:32:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2018-11-10 12:32:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2018-11-10 12:32:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:32:05,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 12:32:05,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:32:05,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:32:05,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 12:32:05,343 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:32:05,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:32:05 BoogieIcfgContainer [2018-11-10 12:32:05,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:32:05,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:32:05,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:32:05,347 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:32:05,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:32:04" (1/3) ... [2018-11-10 12:32:05,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa64dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:32:05, skipping insertion in model container [2018-11-10 12:32:05,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:04" (2/3) ... [2018-11-10 12:32:05,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa64dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:32:05, skipping insertion in model container [2018-11-10 12:32:05,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:32:05" (3/3) ... [2018-11-10 12:32:05,349 INFO L112 eAbstractionObserver]: Analyzing ICFG fo_test_true-termination.c_false-unreach-call.i [2018-11-10 12:32:05,355 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:32:05,359 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:32:05,367 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:32:05,386 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:32:05,386 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:32:05,386 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:32:05,387 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:32:05,387 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:32:05,387 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:32:05,387 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:32:05,387 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:32:05,387 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:32:05,397 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-10 12:32:05,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 12:32:05,400 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:32:05,401 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] [2018-11-10 12:32:05,402 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:32:05,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:32:05,407 INFO L82 PathProgramCache]: Analyzing trace with hash 272317077, now seen corresponding path program 1 times [2018-11-10 12:32:05,409 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 12:32:05,410 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 12:32:05,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:32:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:32:05,465 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:32:05,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:32:05,504 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:32:05,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:32:05,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 12:32:05,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 12:32:05,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 12:32:05,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:32:05,523 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2018-11-10 12:32:05,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:32:05,546 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2018-11-10 12:32:05,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 12:32:05,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-11-10 12:32:05,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:32:05,552 INFO L225 Difference]: With dead ends: 55 [2018-11-10 12:32:05,553 INFO L226 Difference]: Without dead ends: 23 [2018-11-10 12:32:05,555 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:32:05,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-10 12:32:05,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-10 12:32:05,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-10 12:32:05,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-11-10 12:32:05,576 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 22 [2018-11-10 12:32:05,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:32:05,576 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-11-10 12:32:05,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 12:32:05,576 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-11-10 12:32:05,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 12:32:05,577 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:32:05,577 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] [2018-11-10 12:32:05,577 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:32:05,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:32:05,577 INFO L82 PathProgramCache]: Analyzing trace with hash 530482515, now seen corresponding path program 1 times [2018-11-10 12:32:05,577 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 12:32:05,577 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45d4e572-8a08-4da9-bea2-a325e77e64c8/bin-2019/uautomizer/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 12:32:05,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:32:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:32:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:32:05,693 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:32:05,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:32:05 BoogieIcfgContainer [2018-11-10 12:32:05,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:32:05,720 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:32:05,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:32:05,721 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:32:05,721 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:32:05" (3/4) ... [2018-11-10 12:32:05,724 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 12:32:05,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:32:05,724 INFO L168 Benchmark]: Toolchain (without parser) took 1105.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 944.4 MB in the beginning and 1.0 GB in the end (delta: -104.3 MB). Peak memory consumption was 48.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:32:05,726 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:32:05,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.77 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 912.2 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-10 12:32:05,726 INFO L168 Benchmark]: Boogie Preprocessor took 31.71 ms. Allocated memory is still 1.0 GB. Free memory is still 912.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:32:05,726 INFO L168 Benchmark]: RCFGBuilder took 353.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 912.2 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-10 12:32:05,727 INFO L168 Benchmark]: TraceAbstraction took 375.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.1 MB). Peak memory consumption was 44.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:32:05,727 INFO L168 Benchmark]: Witness Printer took 3.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:32:05,729 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 337.77 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 912.2 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.71 ms. Allocated memory is still 1.0 GB. Free memory is still 912.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 353.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 912.2 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 375.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.1 MB). Peak memory consumption was 44.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 960]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1158. Possible FailurePath: [L1158] EXPR, FCALL "unknown" VAL ["unknown"={2:0}, \old("unknown")=0, \old("unknown")=0, \old(globalState)=0, globalState=0] [L1152] int globalState = 0; VAL ["unknown"={2:0}, \old("unknown")=0, \old("unknown")=0, \old(globalState)=0, globalState=0] [L1158] CALL, EXPR l_open("unknown",00) VAL ["unknown"={2:0}, \old(flags)=0, \old(globalState)=0, file={2:0}, globalState=0] [L1170] int fd = open(file,flags); VAL ["unknown"={2:0}, \old(flags)=0, \old(globalState)=0, fd=0, file={2:0}, file={2:0}, flags=0, globalState=0, open(file,flags)=0] [L1171] COND FALSE !(fd>0) VAL ["unknown"={2:0}, \old(flags)=0, \old(globalState)=0, fd=0, file={2:0}, file={2:0}, flags=0, globalState=0, open(file,flags)=0] [L1172] RET return fd; VAL ["unknown"={2:0}, \old(flags)=0, \old(globalState)=0, \result=0, fd=0, file={2:0}, file={2:0}, flags=0, globalState=0, open(file,flags)=0] [L1158] EXPR l_open("unknown",00) VAL ["unknown"={2:0}, \old(argc)=0, \old(globalState)=0, argc=0, argv={0:0}, argv={0:0}, globalState=0, l_open("unknown",00)=0] [L1158] int file = l_open("unknown",00); [L1159] EXPR, FCALL malloc(sizeof(char)*100) VAL ["unknown"={2:0}, \old(argc)=0, \old(globalState)=0, argc=0, argv={0:0}, argv={0:0}, file=0, globalState=0, malloc(sizeof(char)*100)={3:0}] [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); VAL ["unknown"={2:0}, \old(argc)=0, \old(globalState)=0, argc=0, argv={0:0}, argv={0:0}, cbuf={3:0}, file=0, globalState=0, malloc(sizeof(char)*100)={3:0}] [L1160] CALL l_read(file,cbuf,99) VAL ["unknown"={2:0}, \old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={3:0}, globalState=0] [L1165] COND FALSE !((globalState == 1) ? (0) : __blast_assert ()) VAL ["unknown"={2:0}, \old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={3:0}, cbuf={3:0}, count=99, fd=0, globalState=0] [L1165] CALL __blast_assert () VAL ["unknown"={2:0}, \old(globalState)=0, globalState=0] [L960] __VERIFIER_error() VAL ["unknown"={2:0}, \old(globalState)=0, globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 10 SDslu, 20 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 819 SizeOfPredicates, 0 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...