./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-data/quick_sort_split_true-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_df7d292b-4ac9-454e-ab38-204acc3e629a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_df7d292b-4ac9-454e-ab38-204acc3e629a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_df7d292b-4ac9-454e-ab38-204acc3e629a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_df7d292b-4ac9-454e-ab38-204acc3e629a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_df7d292b-4ac9-454e-ab38-204acc3e629a/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_df7d292b-4ac9-454e-ab38-204acc3e629a/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 9a9cf4ff5024af4bea046a077f81b398a029046b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:08:29,436 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:08:29,437 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:08:29,444 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:08:29,444 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:08:29,445 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:08:29,446 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:08:29,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:08:29,448 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:08:29,449 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:08:29,449 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:08:29,449 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:08:29,450 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:08:29,451 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:08:29,452 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:08:29,452 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:08:29,453 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:08:29,454 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:08:29,455 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:08:29,457 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:08:29,457 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:08:29,458 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:08:29,460 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:08:29,460 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:08:29,461 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:08:29,461 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:08:29,462 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:08:29,462 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:08:29,463 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:08:29,464 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:08:29,464 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:08:29,464 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:08:29,464 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:08:29,464 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:08:29,465 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:08:29,466 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:08:29,466 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_df7d292b-4ac9-454e-ab38-204acc3e629a/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 12:08:29,477 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:08:29,477 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:08:29,478 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:08:29,478 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 12:08:29,479 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:08:29,479 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:08:29,479 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:08:29,479 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:08:29,479 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:08:29,480 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:08:29,480 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:08:29,480 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:08:29,481 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:08:29,481 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:08:29,481 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:08:29,481 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:08:29,481 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:08:29,481 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:08:29,481 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:08:29,481 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:08:29,482 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:08:29,482 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:08:29,482 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:08:29,482 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:08:29,482 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:08:29,482 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:08:29,482 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:08:29,483 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:08:29,483 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:08:29,483 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:08:29,483 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_df7d292b-4ac9-454e-ab38-204acc3e629a/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 -> 9a9cf4ff5024af4bea046a077f81b398a029046b [2018-11-18 12:08:29,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:08:29,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:08:29,521 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:08:29,522 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:08:29,523 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:08:29,523 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_df7d292b-4ac9-454e-ab38-204acc3e629a/bin-2019/uautomizer/../../sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i [2018-11-18 12:08:29,567 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_df7d292b-4ac9-454e-ab38-204acc3e629a/bin-2019/uautomizer/data/e931e1b9a/1ecc40e4114743738dde315dbd17d48e/FLAG17535d55c [2018-11-18 12:08:29,942 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:08:29,942 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_df7d292b-4ac9-454e-ab38-204acc3e629a/sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i [2018-11-18 12:08:29,952 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_df7d292b-4ac9-454e-ab38-204acc3e629a/bin-2019/uautomizer/data/e931e1b9a/1ecc40e4114743738dde315dbd17d48e/FLAG17535d55c [2018-11-18 12:08:30,325 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_df7d292b-4ac9-454e-ab38-204acc3e629a/bin-2019/uautomizer/data/e931e1b9a/1ecc40e4114743738dde315dbd17d48e [2018-11-18 12:08:30,327 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:08:30,328 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:08:30,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:08:30,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:08:30,332 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:08:30,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:08:30" (1/1) ... [2018-11-18 12:08:30,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fefe927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:08:30, skipping insertion in model container [2018-11-18 12:08:30,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:08:30" (1/1) ... [2018-11-18 12:08:30,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:08:30,372 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:08:30,575 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:08:30,582 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:08:30,613 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:08:30,681 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:08:30,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:08:30 WrapperNode [2018-11-18 12:08:30,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:08:30,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:08:30,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:08:30,682 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:08:30,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:08:30" (1/1) ... [2018-11-18 12:08:30,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:08:30" (1/1) ... [2018-11-18 12:08:30,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:08:30" (1/1) ... [2018-11-18 12:08:30,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:08:30" (1/1) ... [2018-11-18 12:08:30,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:08:30" (1/1) ... [2018-11-18 12:08:30,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:08:30" (1/1) ... [2018-11-18 12:08:30,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:08:30" (1/1) ... [2018-11-18 12:08:30,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:08:30,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:08:30,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:08:30,718 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:08:30,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:08:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_df7d292b-4ac9-454e-ab38-204acc3e629a/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 12:08:30,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:08:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:08:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-18 12:08:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-18 12:08:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2018-11-18 12:08:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure create_list [2018-11-18 12:08:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:08:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 12:08:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:08:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-18 12:08:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-18 12:08:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 12:08:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 12:08:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 12:08:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 12:08:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 12:08:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 12:08:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 12:08:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 12:08:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 12:08:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 12:08:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 12:08:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 12:08:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 12:08:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 12:08:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 12:08:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 12:08:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 12:08:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 12:08:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 12:08:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 12:08:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 12:08:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 12:08:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 12:08:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 12:08:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 12:08:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 12:08:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 12:08:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 12:08:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 12:08:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 12:08:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 12:08:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 12:08:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 12:08:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 12:08:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 12:08:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 12:08:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 12:08:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 12:08:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 12:08:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 12:08:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 12:08:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 12:08:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 12:08:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 12:08:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 12:08:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 12:08:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 12:08:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 12:08:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 12:08:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 12:08:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 12:08:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 12:08:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 12:08:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 12:08:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 12:08:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 12:08:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 12:08:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 12:08:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-18 12:08:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 12:08:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 12:08:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-18 12:08:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 12:08:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 12:08:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-18 12:08:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 12:08:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 12:08:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 12:08:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 12:08:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 12:08:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 12:08:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 12:08:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 12:08:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 12:08:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 12:08:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 12:08:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 12:08:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 12:08:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 12:08:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 12:08:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 12:08:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 12:08:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 12:08:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 12:08:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 12:08:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 12:08:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 12:08:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 12:08:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 12:08:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 12:08:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 12:08:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 12:08:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 12:08:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 12:08:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 12:08:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 12:08:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 12:08:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 12:08:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 12:08:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 12:08:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 12:08:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-18 12:08:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 12:08:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2018-11-18 12:08:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:08:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 12:08:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 12:08:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:08:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure create_list [2018-11-18 12:08:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:08:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:08:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:08:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:08:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:08:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 12:08:31,062 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:08:31,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:08:31 BoogieIcfgContainer [2018-11-18 12:08:31,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:08:31,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:08:31,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:08:31,066 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:08:31,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:08:30" (1/3) ... [2018-11-18 12:08:31,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@689c34df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:08:31, skipping insertion in model container [2018-11-18 12:08:31,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:08:30" (2/3) ... [2018-11-18 12:08:31,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@689c34df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:08:31, skipping insertion in model container [2018-11-18 12:08:31,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:08:31" (3/3) ... [2018-11-18 12:08:31,068 INFO L112 eAbstractionObserver]: Analyzing ICFG quick_sort_split_true-unreach-call.i [2018-11-18 12:08:31,076 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:08:31,082 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-18 12:08:31,090 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-18 12:08:31,106 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:08:31,107 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:08:31,107 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:08:31,107 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:08:31,107 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:08:31,107 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:08:31,107 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:08:31,108 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:08:31,108 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:08:31,117 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-11-18 12:08:31,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 12:08:31,121 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:08:31,121 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:08:31,123 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:08:31,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:08:31,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1396123537, now seen corresponding path program 1 times [2018-11-18 12:08:31,128 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:08:31,128 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:08:31,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:08:31,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:08:31,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:08:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:08:31,210 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 12:08:31,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:08:31,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:08:31,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:08:31,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:08:31,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:08:31,223 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2018-11-18 12:08:31,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:08:31,236 INFO L93 Difference]: Finished difference Result 64 states and 84 transitions. [2018-11-18 12:08:31,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:08:31,237 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-18 12:08:31,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:08:31,244 INFO L225 Difference]: With dead ends: 64 [2018-11-18 12:08:31,244 INFO L226 Difference]: Without dead ends: 36 [2018-11-18 12:08:31,247 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:08:31,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-18 12:08:31,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-18 12:08:31,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-18 12:08:31,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-11-18 12:08:31,272 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 17 [2018-11-18 12:08:31,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:08:31,272 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-11-18 12:08:31,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:08:31,273 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-11-18 12:08:31,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 12:08:31,273 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:08:31,274 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:08:31,274 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:08:31,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:08:31,274 INFO L82 PathProgramCache]: Analyzing trace with hash -216780085, now seen corresponding path program 1 times [2018-11-18 12:08:31,274 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:08:31,274 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:08:31,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:08:31,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:08:31,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:08:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:08:31,336 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 12:08:31,336 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:08:31,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:08:31,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:08:31,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:08:31,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:08:31,338 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 3 states. [2018-11-18 12:08:31,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:08:31,347 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2018-11-18 12:08:31,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:08:31,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-11-18 12:08:31,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:08:31,348 INFO L225 Difference]: With dead ends: 44 [2018-11-18 12:08:31,348 INFO L226 Difference]: Without dead ends: 32 [2018-11-18 12:08:31,349 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 12:08:31,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-18 12:08:31,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-18 12:08:31,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-18 12:08:31,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2018-11-18 12:08:31,354 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 20 [2018-11-18 12:08:31,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:08:31,354 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2018-11-18 12:08:31,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:08:31,354 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2018-11-18 12:08:31,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 12:08:31,355 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:08:31,355 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:08:31,355 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:08:31,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:08:31,355 INFO L82 PathProgramCache]: Analyzing trace with hash 2126264463, now seen corresponding path program 1 times [2018-11-18 12:08:31,355 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:08:31,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:08:31,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:08:31,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:08:31,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:08:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:08:31,388 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 12:08:31,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:08:31,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:08:31,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:08:31,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:08:31,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:08:31,389 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 3 states. [2018-11-18 12:08:31,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:08:31,393 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-11-18 12:08:31,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:08:31,393 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-11-18 12:08:31,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:08:31,393 INFO L225 Difference]: With dead ends: 34 [2018-11-18 12:08:31,393 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:08:31,394 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 12:08:31,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:08:31,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:08:31,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:08:31,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:08:31,394 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-11-18 12:08:31,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:08:31,395 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:08:31,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:08:31,395 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:08:31,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:08:31,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:08:31,441 INFO L428 ceAbstractionStarter]: At program point L576(line 576) the Hoare annotation is: true [2018-11-18 12:08:31,441 INFO L428 ceAbstractionStarter]: At program point L576-1(lines 571 577) the Hoare annotation is: true [2018-11-18 12:08:31,441 INFO L428 ceAbstractionStarter]: At program point L574(line 574) the Hoare annotation is: true [2018-11-18 12:08:31,441 INFO L425 ceAbstractionStarter]: For program point L573(lines 573 576) no Hoare annotation was computed. [2018-11-18 12:08:31,441 INFO L425 ceAbstractionStarter]: For program point L571-1(lines 571 577) no Hoare annotation was computed. [2018-11-18 12:08:31,441 INFO L425 ceAbstractionStarter]: For program point L571-2(lines 571 577) no Hoare annotation was computed. [2018-11-18 12:08:31,441 INFO L425 ceAbstractionStarter]: For program point L571-4(lines 571 577) no Hoare annotation was computed. [2018-11-18 12:08:31,442 INFO L425 ceAbstractionStarter]: For program point create_listEXIT(lines 569 579) no Hoare annotation was computed. [2018-11-18 12:08:31,442 INFO L428 ceAbstractionStarter]: At program point create_listENTRY(lines 569 579) the Hoare annotation is: true [2018-11-18 12:08:31,442 INFO L425 ceAbstractionStarter]: For program point create_listFINAL(lines 569 579) no Hoare annotation was computed. [2018-11-18 12:08:31,442 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:08:31,442 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:08:31,442 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:08:31,442 INFO L425 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2018-11-18 12:08:31,442 INFO L425 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2018-11-18 12:08:31,442 INFO L425 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2018-11-18 12:08:31,443 INFO L425 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2018-11-18 12:08:31,443 INFO L425 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2018-11-18 12:08:31,443 INFO L425 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2018-11-18 12:08:31,443 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:08:31,443 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:08:31,443 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:08:31,443 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:08:31,443 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 580 602) no Hoare annotation was computed. [2018-11-18 12:08:31,443 INFO L425 ceAbstractionStarter]: For program point L597(lines 597 601) no Hoare annotation was computed. [2018-11-18 12:08:31,444 INFO L425 ceAbstractionStarter]: For program point L597-2(lines 580 602) no Hoare annotation was computed. [2018-11-18 12:08:31,444 INFO L425 ceAbstractionStarter]: For program point L597-3(lines 580 602) no Hoare annotation was computed. [2018-11-18 12:08:31,444 INFO L425 ceAbstractionStarter]: For program point L593(lines 593 594) no Hoare annotation was computed. [2018-11-18 12:08:31,444 INFO L425 ceAbstractionStarter]: For program point L593-2(lines 593 594) no Hoare annotation was computed. [2018-11-18 12:08:31,444 INFO L425 ceAbstractionStarter]: For program point L585-1(lines 585 591) no Hoare annotation was computed. [2018-11-18 12:08:31,444 INFO L421 ceAbstractionStarter]: At program point L585-3(lines 585 591) the Hoare annotation is: (and (= main_~low~0.offset 0) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~high~0.offset 0)) [2018-11-18 12:08:31,444 INFO L425 ceAbstractionStarter]: For program point L581(line 581) no Hoare annotation was computed. [2018-11-18 12:08:31,444 INFO L425 ceAbstractionStarter]: For program point L598(lines 598 599) no Hoare annotation was computed. [2018-11-18 12:08:31,444 INFO L425 ceAbstractionStarter]: For program point L598-2(lines 598 599) no Hoare annotation was computed. [2018-11-18 12:08:31,445 INFO L425 ceAbstractionStarter]: For program point L594(line 594) no Hoare annotation was computed. [2018-11-18 12:08:31,445 INFO L425 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2018-11-18 12:08:31,445 INFO L425 ceAbstractionStarter]: For program point L586-2(line 586) no Hoare annotation was computed. [2018-11-18 12:08:31,445 INFO L425 ceAbstractionStarter]: For program point L599(line 599) no Hoare annotation was computed. [2018-11-18 12:08:31,445 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 580 602) the Hoare annotation is: true [2018-11-18 12:08:31,445 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 599) no Hoare annotation was computed. [2018-11-18 12:08:31,445 INFO L425 ceAbstractionStarter]: For program point L592(lines 592 596) no Hoare annotation was computed. [2018-11-18 12:08:31,445 INFO L425 ceAbstractionStarter]: For program point L592-2(lines 580 602) no Hoare annotation was computed. [2018-11-18 12:08:31,445 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 594) no Hoare annotation was computed. [2018-11-18 12:08:31,446 INFO L425 ceAbstractionStarter]: For program point append_to_listEXIT(lines 562 568) no Hoare annotation was computed. [2018-11-18 12:08:31,446 INFO L428 ceAbstractionStarter]: At program point append_to_listENTRY(lines 562 568) the Hoare annotation is: true [2018-11-18 12:08:31,446 INFO L425 ceAbstractionStarter]: For program point append_to_listFINAL(lines 562 568) no Hoare annotation was computed. [2018-11-18 12:08:31,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:08:31 BoogieIcfgContainer [2018-11-18 12:08:31,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:08:31,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:08:31,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:08:31,454 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:08:31,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:08:31" (3/4) ... [2018-11-18 12:08:31,458 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:08:31,462 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure create_list [2018-11-18 12:08:31,462 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:08:31,463 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2018-11-18 12:08:31,463 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2018-11-18 12:08:31,463 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:08:31,463 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure append_to_list [2018-11-18 12:08:31,466 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 12:08:31,466 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 12:08:31,467 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:08:31,501 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_df7d292b-4ac9-454e-ab38-204acc3e629a/bin-2019/uautomizer/witness.graphml [2018-11-18 12:08:31,501 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:08:31,502 INFO L168 Benchmark]: Toolchain (without parser) took 1174.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 956.6 MB in the beginning and 1.0 GB in the end (delta: -60.3 MB). Peak memory consumption was 63.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:08:31,503 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:08:31,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:08:31,504 INFO L168 Benchmark]: Boogie Preprocessor took 35.41 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:08:31,504 INFO L168 Benchmark]: RCFGBuilder took 345.28 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: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. [2018-11-18 12:08:31,504 INFO L168 Benchmark]: TraceAbstraction took 390.65 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: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:08:31,504 INFO L168 Benchmark]: Witness Printer took 47.00 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:08:31,506 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 352.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.41 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 345.28 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: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 390.65 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: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. * Witness Printer took 47.00 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 599]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 594]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((low == 0 && low == 0) && high == 0) && high == 0 - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 46 locations, 2 error locations. SAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 112 SDtfs, 15 SDslu, 44 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 22 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 2270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...