./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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/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_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/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_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/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_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/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 0.1.23-5842f4b [2018-11-18 09:55:19,474 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:55:19,475 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:55:19,483 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:55:19,483 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:55:19,484 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:55:19,485 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:55:19,486 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:55:19,487 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:55:19,487 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:55:19,488 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:55:19,488 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:55:19,489 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:55:19,489 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:55:19,490 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:55:19,491 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:55:19,491 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:55:19,492 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:55:19,493 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:55:19,495 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:55:19,496 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:55:19,496 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:55:19,498 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:55:19,498 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:55:19,498 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:55:19,499 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:55:19,500 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:55:19,500 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:55:19,501 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:55:19,501 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:55:19,502 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:55:19,503 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:55:19,503 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:55:19,503 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:55:19,503 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:55:19,504 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:55:19,504 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 09:55:19,514 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:55:19,514 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:55:19,515 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:55:19,515 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 09:55:19,515 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:55:19,516 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:55:19,516 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:55:19,516 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:55:19,516 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:55:19,516 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:55:19,516 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:55:19,516 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:55:19,517 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:55:19,517 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:55:19,517 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:55:19,518 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:55:19,518 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:55:19,518 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:55:19,518 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:55:19,519 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:55:19,519 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:55:19,519 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:55:19,519 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:55:19,519 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:55:19,519 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:55:19,519 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:55:19,520 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:55:19,520 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:55:19,520 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:55:19,520 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:55:19,520 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_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b89be727e1b941b152f4b6e505aae7e5221fdd7 [2018-11-18 09:55:19,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:55:19,553 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:55:19,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:55:19,557 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:55:19,557 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:55:19,557 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-11-18 09:55:19,598 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/data/1cf835b1e/7a331e1858c54e8c95f43b72bc3ca74f/FLAGf0d266709 [2018-11-18 09:55:20,040 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:55:20,041 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-11-18 09:55:20,050 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/data/1cf835b1e/7a331e1858c54e8c95f43b72bc3ca74f/FLAGf0d266709 [2018-11-18 09:55:20,059 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/data/1cf835b1e/7a331e1858c54e8c95f43b72bc3ca74f [2018-11-18 09:55:20,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:55:20,062 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 09:55:20,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:55:20,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:55:20,065 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:55:20,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:55:20" (1/1) ... [2018-11-18 09:55:20,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@709bd6c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:20, skipping insertion in model container [2018-11-18 09:55:20,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:55:20" (1/1) ... [2018-11-18 09:55:20,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:55:20,101 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:55:20,295 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:55:20,299 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:55:20,326 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:55:20,355 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:55:20,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:20 WrapperNode [2018-11-18 09:55:20,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:55:20,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:55:20,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:55:20,356 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:55:20,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:20" (1/1) ... [2018-11-18 09:55:20,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:20" (1/1) ... [2018-11-18 09:55:20,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:20" (1/1) ... [2018-11-18 09:55:20,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:20" (1/1) ... [2018-11-18 09:55:20,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:20" (1/1) ... [2018-11-18 09:55:20,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:20" (1/1) ... [2018-11-18 09:55:20,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:20" (1/1) ... [2018-11-18 09:55:20,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:55:20,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:55:20,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:55:20,430 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:55:20,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:55:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:55:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:55:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-18 09:55:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2018-11-18 09:55:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:55:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2018-11-18 09:55:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2018-11-18 09:55:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 09:55:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 09:55:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 09:55:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 09:55:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 09:55:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 09:55:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 09:55:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 09:55:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 09:55:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 09:55:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 09:55:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 09:55:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 09:55:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 09:55:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 09:55:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 09:55:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 09:55:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 09:55:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 09:55:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 09:55:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 09:55:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 09:55:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 09:55:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 09:55:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 09:55:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 09:55:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 09:55:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 09:55:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 09:55:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 09:55:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 09:55:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 09:55:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 09:55:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 09:55:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 09:55:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 09:55:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 09:55:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 09:55:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 09:55:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 09:55:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 09:55:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 09:55:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 09:55:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 09:55:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 09:55:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 09:55:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 09:55:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 09:55:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 09:55:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 09:55:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 09:55:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 09:55:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 09:55:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 09:55:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 09:55:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 09:55:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 09:55:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 09:55:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 09:55:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 09:55:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 09:55:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 09:55:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 09:55:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 09:55:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 09:55:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-18 09:55:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 09:55:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 09:55:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 09:55:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 09:55:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 09:55:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 09:55:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 09:55:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 09:55:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 09:55:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 09:55:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 09:55:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 09:55:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 09:55:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 09:55:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 09:55:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 09:55:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 09:55:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 09:55:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 09:55:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 09:55:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 09:55:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 09:55:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 09:55:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 09:55:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 09:55:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 09:55:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 09:55:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 09:55:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 09:55:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 09:55:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 09:55:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 09:55:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 09:55:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 09:55:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2018-11-18 09:55:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 09:55:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-18 09:55:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2018-11-18 09:55:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2018-11-18 09:55:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2018-11-18 09:55:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2018-11-18 09:55:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2018-11-18 09:55:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2018-11-18 09:55:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2018-11-18 09:55:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2018-11-18 09:55:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2018-11-18 09:55:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2018-11-18 09:55:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2018-11-18 09:55:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2018-11-18 09:55:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2018-11-18 09:55:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2018-11-18 09:55:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2018-11-18 09:55:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2018-11-18 09:55:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2018-11-18 09:55:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2018-11-18 09:55:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2018-11-18 09:55:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2018-11-18 09:55:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2018-11-18 09:55:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2018-11-18 09:55:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2018-11-18 09:55:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2018-11-18 09:55:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure open [2018-11-18 09:55:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2018-11-18 09:55:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2018-11-18 09:55:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2018-11-18 09:55:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2018-11-18 09:55:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2018-11-18 09:55:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2018-11-18 09:55:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure read [2018-11-18 09:55:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 09:55:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2018-11-18 09:55:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2018-11-18 09:55:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:55:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:55:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:55:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:55:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 09:55:20,703 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:55:20,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:55:20 BoogieIcfgContainer [2018-11-18 09:55:20,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:55:20,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:55:20,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:55:20,706 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:55:20,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:55:20" (1/3) ... [2018-11-18 09:55:20,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c02cd20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:55:20, skipping insertion in model container [2018-11-18 09:55:20,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:20" (2/3) ... [2018-11-18 09:55:20,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c02cd20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:55:20, skipping insertion in model container [2018-11-18 09:55:20,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:55:20" (3/3) ... [2018-11-18 09:55:20,708 INFO L112 eAbstractionObserver]: Analyzing ICFG fo_test_true-termination.c_false-unreach-call.i [2018-11-18 09:55:20,713 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:55:20,718 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:55:20,726 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:55:20,744 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:55:20,744 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:55:20,744 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:55:20,745 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:55:20,745 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:55:20,745 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:55:20,745 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:55:20,745 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:55:20,745 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:55:20,758 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-18 09:55:20,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 09:55:20,762 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:55:20,762 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:55:20,764 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:55:20,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:55:20,768 INFO L82 PathProgramCache]: Analyzing trace with hash -722045737, now seen corresponding path program 1 times [2018-11-18 09:55:20,769 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:55:20,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:55:20,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:55:20,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:55:20,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:55:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:55:20,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:55:20,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:55:20,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:55:20,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:55:20,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:55:20,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:55:20,888 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-11-18 09:55:20,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:55:20,919 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2018-11-18 09:55:20,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:55:20,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-18 09:55:20,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:55:20,928 INFO L225 Difference]: With dead ends: 47 [2018-11-18 09:55:20,928 INFO L226 Difference]: Without dead ends: 19 [2018-11-18 09:55:20,931 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:55:20,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-18 09:55:20,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-18 09:55:20,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 09:55:20,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-11-18 09:55:20,959 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 18 [2018-11-18 09:55:20,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:55:20,960 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-11-18 09:55:20,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:55:20,960 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-11-18 09:55:20,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 09:55:20,960 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:55:20,960 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:55:20,961 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:55:20,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:55:20,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1115072747, now seen corresponding path program 1 times [2018-11-18 09:55:20,961 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:55:20,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:55:20,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:55:20,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:55:20,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:55:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:55:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:55:21,009 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 09:55:21,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:55:21 BoogieIcfgContainer [2018-11-18 09:55:21,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:55:21,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:55:21,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:55:21,035 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:55:21,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:55:20" (3/4) ... [2018-11-18 09:55:21,039 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 09:55:21,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:55:21,039 INFO L168 Benchmark]: Toolchain (without parser) took 977.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 950.0 MB in the beginning and 1.0 GB in the end (delta: -88.9 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:55:21,041 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:55:21,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.14 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 917.8 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:55:21,041 INFO L168 Benchmark]: Boogie Preprocessor took 73.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 917.8 MB in the beginning and 1.1 GB in the end (delta: -202.7 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:55:21,042 INFO L168 Benchmark]: RCFGBuilder took 273.97 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: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:55:21,042 INFO L168 Benchmark]: TraceAbstraction took 331.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:55:21,043 INFO L168 Benchmark]: Witness Printer took 3.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:55:21,045 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.14 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 917.8 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 917.8 MB in the beginning and 1.1 GB in the end (delta: -202.7 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 273.97 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: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 331.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. 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" [L1152] int globalState = 0; VAL ["unknown"={1:0}, \old("unknown")=107, \old("unknown")=102, \old(globalState)=104, globalState=0] [L1158] CALL, EXPR l_open("unknown",00) VAL ["unknown"={1:0}, \old(flags)=0, \old(globalState)=0, file={1:0}, globalState=0] [L1170] int fd = open(file,flags); VAL ["unknown"={1:0}, \old(flags)=0, \old(globalState)=0, fd=0, file={1:0}, file={1:0}, flags=0, globalState=0, open(file,flags)=0] [L1171] COND FALSE !(fd>0) VAL ["unknown"={1:0}, \old(flags)=0, \old(globalState)=0, fd=0, file={1:0}, file={1:0}, flags=0, globalState=0, open(file,flags)=0] [L1172] RET return fd; VAL ["unknown"={1:0}, \old(flags)=0, \old(globalState)=0, \result=0, fd=0, file={1:0}, file={1:0}, flags=0, globalState=0, open(file,flags)=0] [L1158] EXPR l_open("unknown",00) VAL ["unknown"={1:0}, \old(argc)=108, \old(globalState)=0, argc=108, argv={105:103}, argv={105:103}, globalState=0, l_open("unknown",00)=0] [L1158] int file = l_open("unknown",00); [L1159] EXPR, FCALL malloc(sizeof(char)*100) [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); VAL ["unknown"={1:0}, \old(argc)=108, \old(globalState)=0, argc=108, argv={105:103}, argv={105:103}, cbuf={109:0}, file=0, globalState=0, malloc(sizeof(char)*100)={109:0}] [L1160] CALL l_read(file,cbuf,99) VAL ["unknown"={1:0}, \old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={109:0}, globalState=0] [L1165] COND FALSE !((globalState == 1) ? (0) : __blast_assert ()) VAL ["unknown"={1:0}, \old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={109:0}, cbuf={109:0}, count=99, fd=0, globalState=0] [L1165] CALL __blast_assert () VAL ["unknown"={1:0}, \old(globalState)=0, globalState=0] [L960] __VERIFIER_error() VAL ["unknown"={1:0}, \old(globalState)=0, globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 32 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 9 SDslu, 16 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=29occurred 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, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 527 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 0.1.23-5842f4b [2018-11-18 09:55:22,435 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:55:22,437 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:55:22,445 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:55:22,446 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:55:22,446 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:55:22,447 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:55:22,448 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:55:22,449 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:55:22,450 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:55:22,451 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:55:22,451 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:55:22,451 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:55:22,452 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:55:22,453 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:55:22,453 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:55:22,454 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:55:22,455 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:55:22,456 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:55:22,458 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:55:22,458 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:55:22,459 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:55:22,461 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:55:22,461 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:55:22,461 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:55:22,462 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:55:22,462 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:55:22,463 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:55:22,463 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:55:22,464 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:55:22,464 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:55:22,465 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:55:22,465 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:55:22,465 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:55:22,465 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:55:22,466 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:55:22,466 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 09:55:22,476 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:55:22,477 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:55:22,477 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:55:22,477 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 09:55:22,478 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:55:22,478 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:55:22,478 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:55:22,478 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:55:22,478 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:55:22,479 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:55:22,479 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:55:22,479 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:55:22,479 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:55:22,479 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:55:22,479 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 09:55:22,479 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 09:55:22,480 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:55:22,480 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:55:22,480 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:55:22,480 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:55:22,480 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:55:22,480 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:55:22,480 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:55:22,481 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:55:22,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:55:22,481 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:55:22,481 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:55:22,481 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:55:22,481 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 09:55:22,481 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:55:22,482 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 09:55:22,482 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 09:55:22,482 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_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b89be727e1b941b152f4b6e505aae7e5221fdd7 [2018-11-18 09:55:22,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:55:22,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:55:22,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:55:22,522 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:55:22,523 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:55:22,523 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-11-18 09:55:22,557 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/data/d2617c894/3598f36d54484295850d4a4d476fc416/FLAG9bebafe20 [2018-11-18 09:55:22,980 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:55:22,980 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-11-18 09:55:22,987 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/data/d2617c894/3598f36d54484295850d4a4d476fc416/FLAG9bebafe20 [2018-11-18 09:55:22,996 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/data/d2617c894/3598f36d54484295850d4a4d476fc416 [2018-11-18 09:55:22,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:55:22,999 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 09:55:22,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:55:22,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:55:23,002 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:55:23,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:55:22" (1/1) ... [2018-11-18 09:55:23,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f448b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:23, skipping insertion in model container [2018-11-18 09:55:23,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:55:22" (1/1) ... [2018-11-18 09:55:23,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:55:23,039 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:55:23,268 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:55:23,275 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:55:23,306 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:55:23,349 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:55:23,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:23 WrapperNode [2018-11-18 09:55:23,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:55:23,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:55:23,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:55:23,350 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:55:23,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:23" (1/1) ... [2018-11-18 09:55:23,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:23" (1/1) ... [2018-11-18 09:55:23,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:23" (1/1) ... [2018-11-18 09:55:23,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:23" (1/1) ... [2018-11-18 09:55:23,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:23" (1/1) ... [2018-11-18 09:55:23,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:23" (1/1) ... [2018-11-18 09:55:23,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:23" (1/1) ... [2018-11-18 09:55:23,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:55:23,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:55:23,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:55:23,436 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:55:23,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:55:23,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:55:23,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:55:23,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-18 09:55:23,467 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2018-11-18 09:55:23,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:55:23,468 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2018-11-18 09:55:23,468 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2018-11-18 09:55:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 09:55:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 09:55:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 09:55:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 09:55:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 09:55:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 09:55:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 09:55:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 09:55:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 09:55:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 09:55:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 09:55:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 09:55:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 09:55:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 09:55:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 09:55:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 09:55:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 09:55:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 09:55:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 09:55:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 09:55:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 09:55:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 09:55:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 09:55:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 09:55:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 09:55:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 09:55:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 09:55:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 09:55:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 09:55:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 09:55:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 09:55:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 09:55:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 09:55:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 09:55:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 09:55:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 09:55:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 09:55:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 09:55:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 09:55:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 09:55:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 09:55:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 09:55:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 09:55:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 09:55:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 09:55:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 09:55:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 09:55:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 09:55:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 09:55:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 09:55:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 09:55:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 09:55:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 09:55:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 09:55:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 09:55:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 09:55:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 09:55:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 09:55:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 09:55:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 09:55:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 09:55:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 09:55:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 09:55:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 09:55:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 09:55:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-18 09:55:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 09:55:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 09:55:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 09:55:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 09:55:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 09:55:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 09:55:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 09:55:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 09:55:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 09:55:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 09:55:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 09:55:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 09:55:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 09:55:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 09:55:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 09:55:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 09:55:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 09:55:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 09:55:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 09:55:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 09:55:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 09:55:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 09:55:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 09:55:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 09:55:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 09:55:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 09:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 09:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 09:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 09:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 09:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 09:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 09:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 09:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 09:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2018-11-18 09:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 09:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-18 09:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2018-11-18 09:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2018-11-18 09:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2018-11-18 09:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2018-11-18 09:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2018-11-18 09:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2018-11-18 09:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2018-11-18 09:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2018-11-18 09:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2018-11-18 09:55:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2018-11-18 09:55:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2018-11-18 09:55:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2018-11-18 09:55:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2018-11-18 09:55:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2018-11-18 09:55:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2018-11-18 09:55:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2018-11-18 09:55:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2018-11-18 09:55:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2018-11-18 09:55:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2018-11-18 09:55:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2018-11-18 09:55:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2018-11-18 09:55:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2018-11-18 09:55:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2018-11-18 09:55:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2018-11-18 09:55:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure open [2018-11-18 09:55:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2018-11-18 09:55:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2018-11-18 09:55:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2018-11-18 09:55:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2018-11-18 09:55:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2018-11-18 09:55:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2018-11-18 09:55:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure read [2018-11-18 09:55:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 09:55:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2018-11-18 09:55:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2018-11-18 09:55:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:55:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:55:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:55:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:55:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 09:55:23,753 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:55:23,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:55:23 BoogieIcfgContainer [2018-11-18 09:55:23,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:55:23,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:55:23,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:55:23,756 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:55:23,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:55:22" (1/3) ... [2018-11-18 09:55:23,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1060da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:55:23, skipping insertion in model container [2018-11-18 09:55:23,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:55:23" (2/3) ... [2018-11-18 09:55:23,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1060da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:55:23, skipping insertion in model container [2018-11-18 09:55:23,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:55:23" (3/3) ... [2018-11-18 09:55:23,758 INFO L112 eAbstractionObserver]: Analyzing ICFG fo_test_true-termination.c_false-unreach-call.i [2018-11-18 09:55:23,763 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:55:23,768 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:55:23,776 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:55:23,794 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:55:23,795 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:55:23,795 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:55:23,795 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:55:23,795 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:55:23,795 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:55:23,795 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:55:23,795 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:55:23,795 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:55:23,804 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-18 09:55:23,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 09:55:23,808 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:55:23,808 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:55:23,809 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:55:23,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:55:23,813 INFO L82 PathProgramCache]: Analyzing trace with hash -722045737, now seen corresponding path program 1 times [2018-11-18 09:55:23,815 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:55:23,815 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:55:23,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:55:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:55:23,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:55:23,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:55:23,898 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:55:23,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:55:23,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:55:23,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:55:23,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:55:23,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:55:23,914 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-11-18 09:55:23,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:55:23,948 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2018-11-18 09:55:23,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:55:23,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-18 09:55:23,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:55:23,954 INFO L225 Difference]: With dead ends: 47 [2018-11-18 09:55:23,954 INFO L226 Difference]: Without dead ends: 19 [2018-11-18 09:55:23,956 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:55:23,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-18 09:55:23,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-18 09:55:23,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 09:55:23,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-11-18 09:55:23,975 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 18 [2018-11-18 09:55:23,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:55:23,976 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-11-18 09:55:23,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:55:23,976 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-11-18 09:55:23,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 09:55:23,976 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:55:23,977 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:55:23,977 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:55:23,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:55:23,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1115072747, now seen corresponding path program 1 times [2018-11-18 09:55:23,977 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:55:23,978 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d65c1c40-5138-4ff0-a1fc-44339d72e11e/bin-2019/uautomizer/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:55:23,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:55:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:55:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:55:24,105 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 09:55:24,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:55:24 BoogieIcfgContainer [2018-11-18 09:55:24,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:55:24,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:55:24,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:55:24,131 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:55:24,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:55:23" (3/4) ... [2018-11-18 09:55:24,133 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 09:55:24,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:55:24,134 INFO L168 Benchmark]: Toolchain (without parser) took 1135.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 944.4 MB in the beginning and 1.0 GB in the end (delta: -100.7 MB). Peak memory consumption was 50.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:55:24,135 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:55:24,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.29 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 912.2 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:55:24,136 INFO L168 Benchmark]: Boogie Preprocessor took 85.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 912.2 MB in the beginning and 1.1 GB in the end (delta: -227.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:55:24,136 INFO L168 Benchmark]: RCFGBuilder took 318.37 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:55:24,137 INFO L168 Benchmark]: TraceAbstraction took 375.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:55:24,137 INFO L168 Benchmark]: Witness Printer took 2.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:55:24,140 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 350.29 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 912.2 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 912.2 MB in the beginning and 1.1 GB in the end (delta: -227.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 318.37 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 375.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 960]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1158. Possible FailurePath: [L1158] EXPR, FCALL "unknown" [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) [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, 32 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 9 SDslu, 16 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 527 SizeOfPredicates, 0 NumberOfNonLiveVariables, 76 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...