./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_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/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_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/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_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/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_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/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 [2018-10-27 00:59:56,829 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:59:56,830 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:59:56,843 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:59:56,844 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:59:56,844 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:59:56,845 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:59:56,847 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:59:56,848 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:59:56,849 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:59:56,853 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:59:56,853 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:59:56,854 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:59:56,855 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:59:56,855 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:59:56,856 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:59:56,857 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:59:56,859 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:59:56,860 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:59:56,862 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:59:56,863 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:59:56,864 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:59:56,866 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:59:56,866 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:59:56,867 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:59:56,867 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:59:56,868 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:59:56,869 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:59:56,870 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:59:56,871 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:59:56,872 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:59:56,872 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:59:56,872 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:59:56,873 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:59:56,873 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:59:56,875 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:59:56,875 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-27 00:59:56,887 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:59:56,888 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:59:56,888 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:59:56,889 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 00:59:56,889 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 00:59:56,889 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 00:59:56,889 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 00:59:56,890 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:59:56,890 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:59:56,890 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:59:56,890 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:59:56,890 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:59:56,890 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:59:56,890 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:59:56,891 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:59:56,891 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:59:56,891 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:59:56,891 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:59:56,891 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:59:56,891 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:59:56,891 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:59:56,892 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:59:56,892 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:59:56,892 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:59:56,892 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:59:56,892 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:59:56,892 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 00:59:56,893 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:59:56,893 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:59:56,893 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_46433d0f-96c9-483f-bc62-4fbb4e21663f/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 [2018-10-27 00:59:56,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:59:56,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:59:56,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:59:56,945 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:59:56,946 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:59:56,947 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-10-27 00:59:57,003 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/data/aeafcaa0a/569beb72b27a42f08d47d759e79692d3/FLAG55eb1ff02 [2018-10-27 00:59:57,468 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:59:57,469 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-10-27 00:59:57,484 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/data/aeafcaa0a/569beb72b27a42f08d47d759e79692d3/FLAG55eb1ff02 [2018-10-27 00:59:57,499 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/data/aeafcaa0a/569beb72b27a42f08d47d759e79692d3 [2018-10-27 00:59:57,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:59:57,504 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:59:57,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:59:57,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:59:57,508 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:59:57,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:59:57" (1/1) ... [2018-10-27 00:59:57,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7312ddd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:59:57, skipping insertion in model container [2018-10-27 00:59:57,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:59:57" (1/1) ... [2018-10-27 00:59:57,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:59:57,557 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:59:57,860 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:59:57,867 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:59:57,914 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:59:57,967 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:59:57,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:59:57 WrapperNode [2018-10-27 00:59:57,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:59:57,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:59:57,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:59:57,969 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:59:57,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:59:57" (1/1) ... [2018-10-27 00:59:57,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:59:57" (1/1) ... [2018-10-27 00:59:57,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:59:57" (1/1) ... [2018-10-27 00:59:57,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:59:57" (1/1) ... [2018-10-27 00:59:58,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:59:57" (1/1) ... [2018-10-27 00:59:58,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:59:57" (1/1) ... [2018-10-27 00:59:58,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:59:57" (1/1) ... [2018-10-27 00:59:58,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:59:58,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:59:58,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:59:58,021 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:59:58,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:59:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/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 [2018-10-27 00:59:58,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:59:58,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:59:58,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-10-27 00:59:58,162 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2018-10-27 00:59:58,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:59:58,162 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2018-10-27 00:59:58,162 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2018-10-27 00:59:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-27 00:59:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-10-27 00:59:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-10-27 00:59:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-10-27 00:59:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-10-27 00:59:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-10-27 00:59:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-10-27 00:59:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-10-27 00:59:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-10-27 00:59:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-10-27 00:59:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-10-27 00:59:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-10-27 00:59:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-10-27 00:59:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-10-27 00:59:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-10-27 00:59:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-10-27 00:59:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-10-27 00:59:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-10-27 00:59:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-10-27 00:59:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-10-27 00:59:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-10-27 00:59:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-10-27 00:59:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-10-27 00:59:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-10-27 00:59:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-10-27 00:59:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-10-27 00:59:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-10-27 00:59:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-10-27 00:59:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-10-27 00:59:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-10-27 00:59:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-10-27 00:59:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-10-27 00:59:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-10-27 00:59:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-10-27 00:59:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-10-27 00:59:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-10-27 00:59:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-10-27 00:59:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-10-27 00:59:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-10-27 00:59:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-10-27 00:59:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-10-27 00:59:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-10-27 00:59:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-10-27 00:59:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-10-27 00:59:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-10-27 00:59:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-10-27 00:59:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-10-27 00:59:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-10-27 00:59:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-10-27 00:59:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-10-27 00:59:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-10-27 00:59:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-10-27 00:59:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-10-27 00:59:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-10-27 00:59:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-10-27 00:59:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-10-27 00:59:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-10-27 00:59:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-10-27 00:59:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-10-27 00:59:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-10-27 00:59:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-10-27 00:59:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-10-27 00:59:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-27 00:59:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-10-27 00:59:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-10-27 00:59:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-10-27 00:59:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-10-27 00:59:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-10-27 00:59:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-10-27 00:59:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-10-27 00:59:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-10-27 00:59:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-10-27 00:59:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-10-27 00:59:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-10-27 00:59:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-10-27 00:59:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-10-27 00:59:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-10-27 00:59:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-10-27 00:59:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-10-27 00:59:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-10-27 00:59:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-10-27 00:59:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-10-27 00:59:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-10-27 00:59:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-10-27 00:59:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-10-27 00:59:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-10-27 00:59:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-10-27 00:59:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-10-27 00:59:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-10-27 00:59:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-10-27 00:59:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-10-27 00:59:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-10-27 00:59:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-10-27 00:59:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-10-27 00:59:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-10-27 00:59:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-10-27 00:59:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-10-27 00:59:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-10-27 00:59:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-10-27 00:59:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-10-27 00:59:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2018-10-27 00:59:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-10-27 00:59:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-10-27 00:59:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2018-10-27 00:59:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2018-10-27 00:59:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2018-10-27 00:59:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2018-10-27 00:59:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2018-10-27 00:59:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2018-10-27 00:59:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2018-10-27 00:59:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2018-10-27 00:59:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2018-10-27 00:59:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2018-10-27 00:59:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2018-10-27 00:59:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2018-10-27 00:59:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2018-10-27 00:59:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2018-10-27 00:59:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2018-10-27 00:59:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2018-10-27 00:59:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2018-10-27 00:59:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2018-10-27 00:59:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2018-10-27 00:59:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2018-10-27 00:59:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2018-10-27 00:59:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2018-10-27 00:59:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2018-10-27 00:59:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2018-10-27 00:59:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure open [2018-10-27 00:59:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2018-10-27 00:59:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2018-10-27 00:59:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2018-10-27 00:59:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2018-10-27 00:59:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2018-10-27 00:59:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2018-10-27 00:59:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure read [2018-10-27 00:59:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-27 00:59:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2018-10-27 00:59:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2018-10-27 00:59:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:59:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-27 00:59:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:59:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:59:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-27 00:59:58,758 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:59:58,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:59:58 BoogieIcfgContainer [2018-10-27 00:59:58,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:59:58,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:59:58,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:59:58,762 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:59:58,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:59:57" (1/3) ... [2018-10-27 00:59:58,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fbd0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:59:58, skipping insertion in model container [2018-10-27 00:59:58,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:59:57" (2/3) ... [2018-10-27 00:59:58,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fbd0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:59:58, skipping insertion in model container [2018-10-27 00:59:58,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:59:58" (3/3) ... [2018-10-27 00:59:58,765 INFO L112 eAbstractionObserver]: Analyzing ICFG fo_test_true-termination.c_false-unreach-call.i [2018-10-27 00:59:58,774 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:59:58,781 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:59:58,795 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:59:58,822 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:59:58,823 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:59:58,823 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:59:58,823 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:59:58,823 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:59:58,823 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:59:58,823 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:59:58,823 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:59:58,824 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:59:58,839 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-10-27 00:59:58,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 00:59:58,845 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:59:58,845 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] [2018-10-27 00:59:58,847 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:59:58,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:59:58,853 INFO L82 PathProgramCache]: Analyzing trace with hash 272317077, now seen corresponding path program 1 times [2018-10-27 00:59:58,854 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 00:59:58,855 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 00:59:58,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:59:58,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:59:58,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:59:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:59:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:59:59,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:59:59,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:59:59,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:59:59,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:59:59,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:59:59,067 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2018-10-27 00:59:59,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:59:59,127 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2018-10-27 00:59:59,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:59:59,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-10-27 00:59:59,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:59:59,137 INFO L225 Difference]: With dead ends: 55 [2018-10-27 00:59:59,137 INFO L226 Difference]: Without dead ends: 23 [2018-10-27 00:59:59,139 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 [2018-10-27 00:59:59,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-27 00:59:59,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-10-27 00:59:59,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-27 00:59:59,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-10-27 00:59:59,167 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 22 [2018-10-27 00:59:59,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:59:59,167 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-10-27 00:59:59,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:59:59,168 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-10-27 00:59:59,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 00:59:59,169 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:59:59,169 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] [2018-10-27 00:59:59,169 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:59:59,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:59:59,170 INFO L82 PathProgramCache]: Analyzing trace with hash 530482515, now seen corresponding path program 1 times [2018-10-27 00:59:59,170 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 00:59:59,170 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 00:59:59,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:59:59,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:59:59,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:59:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:59:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:59:59,246 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 00:59:59,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:59:59 BoogieIcfgContainer [2018-10-27 00:59:59,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:59:59,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:59:59,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:59:59,278 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:59:59,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:59:58" (3/4) ... [2018-10-27 00:59:59,283 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 00:59:59,284 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:59:59,284 INFO L168 Benchmark]: Toolchain (without parser) took 1781.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -121.8 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2018-10-27 00:59:59,286 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:59:59,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 463.18 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 929.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-10-27 00:59:59,287 INFO L168 Benchmark]: Boogie Preprocessor took 52.05 ms. Allocated memory is still 1.0 GB. Free memory was 929.7 MB in the beginning and 927.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:59:59,288 INFO L168 Benchmark]: RCFGBuilder took 737.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 927.0 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:59:59,288 INFO L168 Benchmark]: TraceAbstraction took 518.49 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-10-27 00:59:59,292 INFO L168 Benchmark]: Witness Printer took 5.78 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. [2018-10-27 00:59:59,294 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 463.18 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 929.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.05 ms. Allocated memory is still 1.0 GB. Free memory was 929.7 MB in the beginning and 927.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 737.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 927.0 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 518.49 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.78 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")=109, \old("unknown")=102, \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, 0.4s 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 [2018-10-27 01:00:01,258 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 01:00:01,260 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 01:00:01,270 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 01:00:01,271 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 01:00:01,272 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 01:00:01,273 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 01:00:01,275 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 01:00:01,277 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 01:00:01,277 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 01:00:01,279 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 01:00:01,279 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 01:00:01,280 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 01:00:01,281 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 01:00:01,282 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 01:00:01,283 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 01:00:01,284 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 01:00:01,286 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 01:00:01,288 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 01:00:01,290 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 01:00:01,291 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 01:00:01,292 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 01:00:01,295 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 01:00:01,295 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 01:00:01,296 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 01:00:01,297 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 01:00:01,298 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 01:00:01,299 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 01:00:01,300 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 01:00:01,301 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 01:00:01,301 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 01:00:01,302 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 01:00:01,303 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 01:00:01,303 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 01:00:01,304 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 01:00:01,305 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 01:00:01,305 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-10-27 01:00:01,318 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 01:00:01,319 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 01:00:01,320 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 01:00:01,320 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 01:00:01,320 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 01:00:01,321 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 01:00:01,321 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 01:00:01,321 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 01:00:01,321 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 01:00:01,322 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 01:00:01,323 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 01:00:01,323 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 01:00:01,323 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 01:00:01,323 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 01:00:01,323 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-27 01:00:01,324 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-27 01:00:01,324 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 01:00:01,324 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 01:00:01,324 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 01:00:01,324 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 01:00:01,325 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 01:00:01,325 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 01:00:01,325 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 01:00:01,325 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 01:00:01,325 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 01:00:01,327 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 01:00:01,327 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 01:00:01,328 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-10-27 01:00:01,328 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 01:00:01,328 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-27 01:00:01,328 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-27 01:00:01,328 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_46433d0f-96c9-483f-bc62-4fbb4e21663f/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 [2018-10-27 01:00:01,364 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 01:00:01,374 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 01:00:01,377 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 01:00:01,378 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 01:00:01,379 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 01:00:01,380 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-10-27 01:00:01,426 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/data/d141283c5/30ff2e7a6ccd4e3aaf188d2418e8bb14/FLAG54c1f5bbb [2018-10-27 01:00:01,862 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 01:00:01,863 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-10-27 01:00:01,874 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/data/d141283c5/30ff2e7a6ccd4e3aaf188d2418e8bb14/FLAG54c1f5bbb [2018-10-27 01:00:01,887 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/bin-2019/uautomizer/data/d141283c5/30ff2e7a6ccd4e3aaf188d2418e8bb14 [2018-10-27 01:00:01,889 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 01:00:01,890 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 01:00:01,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 01:00:01,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 01:00:01,895 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 01:00:01,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:00:01" (1/1) ... [2018-10-27 01:00:01,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142aa1de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:00:01, skipping insertion in model container [2018-10-27 01:00:01,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:00:01" (1/1) ... [2018-10-27 01:00:01,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 01:00:01,964 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 01:00:02,330 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 01:00:02,340 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 01:00:02,398 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 01:00:02,461 INFO L193 MainTranslator]: Completed translation [2018-10-27 01:00:02,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:00:02 WrapperNode [2018-10-27 01:00:02,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 01:00:02,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 01:00:02,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 01:00:02,463 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 01:00:02,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:00:02" (1/1) ... [2018-10-27 01:00:02,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:00:02" (1/1) ... [2018-10-27 01:00:02,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:00:02" (1/1) ... [2018-10-27 01:00:02,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:00:02" (1/1) ... [2018-10-27 01:00:02,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:00:02" (1/1) ... [2018-10-27 01:00:02,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:00:02" (1/1) ... [2018-10-27 01:00:02,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:00:02" (1/1) ... [2018-10-27 01:00:02,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 01:00:02,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 01:00:02,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 01:00:02,540 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 01:00:02,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:00:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/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 [2018-10-27 01:00:02,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 01:00:02,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 01:00:02,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-10-27 01:00:02,677 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2018-10-27 01:00:02,677 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 01:00:02,677 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2018-10-27 01:00:02,677 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2018-10-27 01:00:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-27 01:00:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-10-27 01:00:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-10-27 01:00:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-10-27 01:00:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-10-27 01:00:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-10-27 01:00:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-10-27 01:00:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-10-27 01:00:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-10-27 01:00:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-10-27 01:00:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-10-27 01:00:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-10-27 01:00:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-10-27 01:00:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-10-27 01:00:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-10-27 01:00:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-10-27 01:00:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-10-27 01:00:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-10-27 01:00:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-10-27 01:00:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-10-27 01:00:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-10-27 01:00:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-10-27 01:00:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-10-27 01:00:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-10-27 01:00:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-10-27 01:00:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-10-27 01:00:02,681 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-10-27 01:00:02,681 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-10-27 01:00:02,681 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-10-27 01:00:02,681 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-10-27 01:00:02,681 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-10-27 01:00:02,681 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-10-27 01:00:02,681 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-10-27 01:00:02,681 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-10-27 01:00:02,681 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-10-27 01:00:02,687 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-10-27 01:00:02,687 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-10-27 01:00:02,687 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-10-27 01:00:02,687 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-10-27 01:00:02,687 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-10-27 01:00:02,688 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-10-27 01:00:02,688 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-10-27 01:00:02,688 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-10-27 01:00:02,688 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-10-27 01:00:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-10-27 01:00:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-10-27 01:00:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-10-27 01:00:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-10-27 01:00:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-10-27 01:00:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-10-27 01:00:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-10-27 01:00:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-10-27 01:00:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-10-27 01:00:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-10-27 01:00:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-10-27 01:00:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-10-27 01:00:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-10-27 01:00:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-10-27 01:00:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-10-27 01:00:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-10-27 01:00:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-10-27 01:00:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-10-27 01:00:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-27 01:00:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-10-27 01:00:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-10-27 01:00:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-10-27 01:00:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-10-27 01:00:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-10-27 01:00:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-10-27 01:00:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-10-27 01:00:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-10-27 01:00:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-10-27 01:00:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-10-27 01:00:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-10-27 01:00:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-10-27 01:00:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-10-27 01:00:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-10-27 01:00:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-10-27 01:00:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-10-27 01:00:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-10-27 01:00:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-10-27 01:00:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-10-27 01:00:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-10-27 01:00:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-10-27 01:00:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-10-27 01:00:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-10-27 01:00:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-10-27 01:00:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-10-27 01:00:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-10-27 01:00:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-10-27 01:00:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-10-27 01:00:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-10-27 01:00:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-10-27 01:00:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-10-27 01:00:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-10-27 01:00:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-10-27 01:00:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-10-27 01:00:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-10-27 01:00:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-10-27 01:00:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-10-27 01:00:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2018-10-27 01:00:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-10-27 01:00:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-10-27 01:00:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2018-10-27 01:00:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2018-10-27 01:00:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2018-10-27 01:00:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2018-10-27 01:00:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2018-10-27 01:00:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2018-10-27 01:00:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2018-10-27 01:00:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2018-10-27 01:00:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2018-10-27 01:00:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2018-10-27 01:00:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2018-10-27 01:00:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2018-10-27 01:00:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2018-10-27 01:00:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2018-10-27 01:00:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2018-10-27 01:00:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2018-10-27 01:00:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2018-10-27 01:00:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2018-10-27 01:00:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2018-10-27 01:00:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2018-10-27 01:00:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2018-10-27 01:00:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2018-10-27 01:00:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2018-10-27 01:00:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2018-10-27 01:00:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure open [2018-10-27 01:00:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2018-10-27 01:00:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2018-10-27 01:00:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2018-10-27 01:00:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2018-10-27 01:00:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2018-10-27 01:00:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2018-10-27 01:00:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure read [2018-10-27 01:00:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-27 01:00:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2018-10-27 01:00:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2018-10-27 01:00:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 01:00:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-27 01:00:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 01:00:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 01:00:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-27 01:00:03,229 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 01:00:03,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:00:03 BoogieIcfgContainer [2018-10-27 01:00:03,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 01:00:03,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 01:00:03,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 01:00:03,234 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 01:00:03,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:00:01" (1/3) ... [2018-10-27 01:00:03,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765745c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:00:03, skipping insertion in model container [2018-10-27 01:00:03,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:00:02" (2/3) ... [2018-10-27 01:00:03,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765745c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:00:03, skipping insertion in model container [2018-10-27 01:00:03,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:00:03" (3/3) ... [2018-10-27 01:00:03,238 INFO L112 eAbstractionObserver]: Analyzing ICFG fo_test_true-termination.c_false-unreach-call.i [2018-10-27 01:00:03,248 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 01:00:03,256 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 01:00:03,273 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 01:00:03,304 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 01:00:03,305 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 01:00:03,305 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 01:00:03,305 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 01:00:03,305 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 01:00:03,305 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 01:00:03,306 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 01:00:03,306 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 01:00:03,306 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 01:00:03,320 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-10-27 01:00:03,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 01:00:03,325 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:00:03,326 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] [2018-10-27 01:00:03,328 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:00:03,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:00:03,338 INFO L82 PathProgramCache]: Analyzing trace with hash 272317077, now seen corresponding path program 1 times [2018-10-27 01:00:03,342 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-27 01:00:03,343 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/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 [2018-10-27 01:00:03,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:00:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:00:03,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 01:00:03,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 01:00:03,452 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 01:00:03,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 01:00:03,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 01:00:03,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 01:00:03,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 01:00:03,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 01:00:03,470 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2018-10-27 01:00:03,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 01:00:03,515 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2018-10-27 01:00:03,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 01:00:03,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-10-27 01:00:03,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 01:00:03,525 INFO L225 Difference]: With dead ends: 55 [2018-10-27 01:00:03,525 INFO L226 Difference]: Without dead ends: 23 [2018-10-27 01:00:03,528 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 [2018-10-27 01:00:03,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-27 01:00:03,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-10-27 01:00:03,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-27 01:00:03,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-10-27 01:00:03,564 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 22 [2018-10-27 01:00:03,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 01:00:03,565 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-10-27 01:00:03,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 01:00:03,565 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-10-27 01:00:03,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 01:00:03,566 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:00:03,566 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] [2018-10-27 01:00:03,566 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:00:03,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:00:03,567 INFO L82 PathProgramCache]: Analyzing trace with hash 530482515, now seen corresponding path program 1 times [2018-10-27 01:00:03,567 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-27 01:00:03,567 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46433d0f-96c9-483f-bc62-4fbb4e21663f/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 [2018-10-27 01:00:03,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:00:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 01:00:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 01:00:03,761 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 01:00:03,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:00:03 BoogieIcfgContainer [2018-10-27 01:00:03,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 01:00:03,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 01:00:03,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 01:00:03,795 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 01:00:03,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:00:03" (3/4) ... [2018-10-27 01:00:03,799 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 01:00:03,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 01:00:03,800 INFO L168 Benchmark]: Toolchain (without parser) took 1910.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -124.7 MB). Peak memory consumption was 52.0 MB. Max. memory is 11.5 GB. [2018-10-27 01:00:03,802 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-10-27 01:00:03,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.90 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 919.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-10-27 01:00:03,803 INFO L168 Benchmark]: Boogie Preprocessor took 76.32 ms. Allocated memory is still 1.0 GB. Free memory was 919.7 MB in the beginning and 914.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 01:00:03,804 INFO L168 Benchmark]: RCFGBuilder took 690.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 914.3 MB in the beginning and 1.1 GB in the end (delta: -199.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2018-10-27 01:00:03,804 INFO L168 Benchmark]: TraceAbstraction took 563.55 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: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 11.5 GB. [2018-10-27 01:00:03,805 INFO L168 Benchmark]: Witness Printer took 4.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 01:00:03,808 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 570.90 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 919.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 76.32 ms. Allocated memory is still 1.0 GB. Free memory was 919.7 MB in the beginning and 914.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 690.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 914.3 MB in the beginning and 1.1 GB in the end (delta: -199.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 563.55 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: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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, 0.4s 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...