/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-ext-properties/list-ext.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 12:27:25,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 12:27:25,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 12:27:25,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 12:27:25,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 12:27:25,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 12:27:25,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 12:27:25,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 12:27:25,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 12:27:25,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 12:27:25,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 12:27:25,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 12:27:25,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 12:27:25,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 12:27:25,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 12:27:25,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 12:27:25,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 12:27:25,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 12:27:25,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 12:27:25,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 12:27:25,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 12:27:25,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 12:27:25,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 12:27:25,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 12:27:25,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 12:27:25,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 12:27:25,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 12:27:25,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 12:27:25,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 12:27:25,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 12:27:25,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 12:27:25,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 12:27:25,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 12:27:25,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 12:27:25,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 12:27:25,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 12:27:25,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 12:27:25,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 12:27:25,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 12:27:25,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 12:27:25,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 12:27:25,504 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-08 12:27:25,518 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 12:27:25,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 12:27:25,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-08 12:27:25,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-08 12:27:25,521 INFO L138 SettingsManager]: * Use SBE=true [2020-07-08 12:27:25,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 12:27:25,521 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 12:27:25,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 12:27:25,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 12:27:25,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 12:27:25,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 12:27:25,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 12:27:25,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 12:27:25,522 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 12:27:25,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 12:27:25,523 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 12:27:25,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 12:27:25,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 12:27:25,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-08 12:27:25,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 12:27:25,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 12:27:25,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 12:27:25,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 12:27:25,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-08 12:27:25,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-08 12:27:25,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-08 12:27:25,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-08 12:27:25,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 12:27:25,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-08 12:27:25,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-08 12:27:25,847 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 12:27:25,862 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 12:27:25,866 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 12:27:25,868 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 12:27:25,868 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 12:27:25,869 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/list-ext.i [2020-07-08 12:27:25,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7c345a8a/4ee37d1fbe3f440aa363d1fffc117f0e/FLAGd179db8d2 [2020-07-08 12:27:26,601 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 12:27:26,602 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext-properties/list-ext.i [2020-07-08 12:27:26,617 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7c345a8a/4ee37d1fbe3f440aa363d1fffc117f0e/FLAGd179db8d2 [2020-07-08 12:27:26,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7c345a8a/4ee37d1fbe3f440aa363d1fffc117f0e [2020-07-08 12:27:26,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 12:27:26,887 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 12:27:26,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 12:27:26,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 12:27:26,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 12:27:26,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:27:26" (1/1) ... [2020-07-08 12:27:26,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e5be1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:27:26, skipping insertion in model container [2020-07-08 12:27:26,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:27:26" (1/1) ... [2020-07-08 12:27:26,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 12:27:26,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 12:27:27,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:27:27,422 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 12:27:27,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:27:27,544 INFO L208 MainTranslator]: Completed translation [2020-07-08 12:27:27,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:27:27 WrapperNode [2020-07-08 12:27:27,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 12:27:27,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 12:27:27,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 12:27:27,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 12:27:27,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:27:27" (1/1) ... [2020-07-08 12:27:27,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:27:27" (1/1) ... [2020-07-08 12:27:27,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:27:27" (1/1) ... [2020-07-08 12:27:27,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:27:27" (1/1) ... [2020-07-08 12:27:27,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:27:27" (1/1) ... [2020-07-08 12:27:27,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:27:27" (1/1) ... [2020-07-08 12:27:27,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:27:27" (1/1) ... [2020-07-08 12:27:27,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 12:27:27,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 12:27:27,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 12:27:27,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 12:27:27,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:27:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-07-08 12:27:27,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 12:27:27,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 12:27:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-08 12:27:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-08 12:27:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-07-08 12:27:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-07-08 12:27:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-07-08 12:27:27,706 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-07-08 12:27:27,706 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 12:27:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 12:27:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 12:27:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-08 12:27:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-08 12:27:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-08 12:27:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-08 12:27:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-08 12:27:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-08 12:27:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-08 12:27:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-08 12:27:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-08 12:27:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-08 12:27:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-08 12:27:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-08 12:27:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-08 12:27:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-08 12:27:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-08 12:27:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-08 12:27:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-08 12:27:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-08 12:27:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-07-08 12:27:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-07-08 12:27:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-07-08 12:27:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-08 12:27:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-08 12:27:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-08 12:27:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-08 12:27:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-08 12:27:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-08 12:27:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-08 12:27:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-08 12:27:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-08 12:27:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-08 12:27:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-08 12:27:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-08 12:27:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-08 12:27:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-08 12:27:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-08 12:27:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-08 12:27:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-08 12:27:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-08 12:27:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-08 12:27:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-08 12:27:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-08 12:27:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-08 12:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-08 12:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-08 12:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-08 12:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-08 12:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-08 12:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-08 12:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-08 12:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-08 12:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-08 12:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-08 12:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-08 12:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-08 12:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-08 12:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-08 12:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-08 12:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-08 12:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-08 12:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-08 12:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-08 12:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-08 12:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 12:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-08 12:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-08 12:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-08 12:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-08 12:27:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-08 12:27:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-08 12:27:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-08 12:27:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-08 12:27:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-08 12:27:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-08 12:27:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-08 12:27:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-08 12:27:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-08 12:27:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-08 12:27:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-08 12:27:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-08 12:27:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-08 12:27:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-08 12:27:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-08 12:27:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-08 12:27:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-08 12:27:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-08 12:27:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-08 12:27:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-08 12:27:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-08 12:27:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-08 12:27:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-08 12:27:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-08 12:27:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-08 12:27:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-08 12:27:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-08 12:27:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-08 12:27:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-08 12:27:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-08 12:27:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-08 12:27:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-08 12:27:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-08 12:27:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-08 12:27:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-08 12:27:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-08 12:27:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-08 12:27:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-08 12:27:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-08 12:27:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-07-08 12:27:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 12:27:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-08 12:27:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 12:27:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-08 12:27:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-08 12:27:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 12:27:27,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 12:27:27,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 12:27:27,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 12:27:28,122 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-07-08 12:27:28,465 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 12:27:28,465 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-08 12:27:28,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:27:28 BoogieIcfgContainer [2020-07-08 12:27:28,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 12:27:28,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 12:27:28,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 12:27:28,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 12:27:28,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 12:27:26" (1/3) ... [2020-07-08 12:27:28,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f27c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:27:28, skipping insertion in model container [2020-07-08 12:27:28,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:27:27" (2/3) ... [2020-07-08 12:27:28,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f27c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:27:28, skipping insertion in model container [2020-07-08 12:27:28,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:27:28" (3/3) ... [2020-07-08 12:27:28,487 INFO L109 eAbstractionObserver]: Analyzing ICFG list-ext.i [2020-07-08 12:27:28,500 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-08 12:27:28,522 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 12:27:28,538 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 12:27:28,573 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 12:27:28,573 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 12:27:28,573 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-08 12:27:28,573 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 12:27:28,574 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 12:27:28,574 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 12:27:28,574 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 12:27:28,574 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 12:27:28,602 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-08 12:27:28,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-08 12:27:28,611 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:27:28,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:27:28,613 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:27:28,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:27:28,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1234582252, now seen corresponding path program 1 times [2020-07-08 12:27:28,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:27:28,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506833708] [2020-07-08 12:27:28,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:27:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:27:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:27:28,911 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {43#true} is VALID [2020-07-08 12:27:28,912 INFO L280 TraceCheckUtils]: 1: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-08 12:27:28,912 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {43#true} {43#true} #141#return; {43#true} is VALID [2020-07-08 12:27:28,917 INFO L263 TraceCheckUtils]: 0: Hoare triple {43#true} call ULTIMATE.init(); {48#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 12:27:28,917 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {43#true} is VALID [2020-07-08 12:27:28,918 INFO L280 TraceCheckUtils]: 2: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-08 12:27:28,918 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {43#true} {43#true} #141#return; {43#true} is VALID [2020-07-08 12:27:28,918 INFO L263 TraceCheckUtils]: 4: Hoare triple {43#true} call #t~ret22 := main(); {43#true} is VALID [2020-07-08 12:27:28,919 INFO L280 TraceCheckUtils]: 5: Hoare triple {43#true} ~i~0 := 0;~y~0 := 0;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(8);~a~0.base, ~a~0.offset := #t~malloc2.base, #t~malloc2.offset; {43#true} is VALID [2020-07-08 12:27:28,937 INFO L280 TraceCheckUtils]: 6: Hoare triple {43#true} assume !(~a~0.base == 0 && ~a~0.offset == 0); {43#true} is VALID [2020-07-08 12:27:28,938 INFO L280 TraceCheckUtils]: 7: Hoare triple {43#true} havoc ~t~0.base, ~t~0.offset;~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {43#true} is VALID [2020-07-08 12:27:28,940 INFO L280 TraceCheckUtils]: 8: Hoare triple {43#true} assume !true; {44#false} is VALID [2020-07-08 12:27:28,940 INFO L280 TraceCheckUtils]: 9: Hoare triple {44#false} assume !true; {44#false} is VALID [2020-07-08 12:27:28,940 INFO L280 TraceCheckUtils]: 10: Hoare triple {44#false} call write~int(3, ~p~0.base, ~p~0.offset, 4);call write~$Pointer$(0, 0, ~p~0.base, 4 + ~p~0.offset, 4);~i~0 := 0;~y~0 := 0;~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {44#false} is VALID [2020-07-08 12:27:28,940 INFO L280 TraceCheckUtils]: 11: Hoare triple {44#false} assume !true; {44#false} is VALID [2020-07-08 12:27:28,941 INFO L280 TraceCheckUtils]: 12: Hoare triple {44#false} assume !true; {44#false} is VALID [2020-07-08 12:27:28,941 INFO L280 TraceCheckUtils]: 13: Hoare triple {44#false} call #t~mem19 := read~int(~p~0.base, ~p~0.offset, 4); {44#false} is VALID [2020-07-08 12:27:28,941 INFO L280 TraceCheckUtils]: 14: Hoare triple {44#false} assume 3 != #t~mem19 || ~i~0 + ~y~0 < 20;havoc #t~mem19; {44#false} is VALID [2020-07-08 12:27:28,941 INFO L280 TraceCheckUtils]: 15: Hoare triple {44#false} assume !false; {44#false} is VALID [2020-07-08 12:27:28,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 12:27:28,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506833708] [2020-07-08 12:27:28,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 12:27:28,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 12:27:28,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733125200] [2020-07-08 12:27:28,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-07-08 12:27:28,961 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:27:28,967 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 12:27:29,031 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:27:29,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 12:27:29,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:27:29,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 12:27:29,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 12:27:29,043 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-07-08 12:27:29,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:27:29,329 INFO L93 Difference]: Finished difference Result 65 states and 90 transitions. [2020-07-08 12:27:29,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 12:27:29,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-07-08 12:27:29,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:27:29,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 12:27:29,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2020-07-08 12:27:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 12:27:29,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2020-07-08 12:27:29,354 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 90 transitions. [2020-07-08 12:27:29,491 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 90 edges. 90 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:27:29,504 INFO L225 Difference]: With dead ends: 65 [2020-07-08 12:27:29,505 INFO L226 Difference]: Without dead ends: 27 [2020-07-08 12:27:29,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 12:27:29,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-07-08 12:27:29,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-07-08 12:27:29,558 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:27:29,558 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 27 states. [2020-07-08 12:27:29,559 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2020-07-08 12:27:29,559 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2020-07-08 12:27:29,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:27:29,564 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2020-07-08 12:27:29,564 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2020-07-08 12:27:29,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:27:29,565 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:27:29,565 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2020-07-08 12:27:29,566 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2020-07-08 12:27:29,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:27:29,570 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2020-07-08 12:27:29,570 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2020-07-08 12:27:29,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:27:29,571 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:27:29,571 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:27:29,572 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:27:29,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-08 12:27:29,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2020-07-08 12:27:29,577 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 16 [2020-07-08 12:27:29,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:27:29,578 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-07-08 12:27:29,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 12:27:29,578 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2020-07-08 12:27:29,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-08 12:27:29,580 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:27:29,580 INFO L422 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] [2020-07-08 12:27:29,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 12:27:29,581 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:27:29,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:27:29,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1638853746, now seen corresponding path program 1 times [2020-07-08 12:27:29,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:27:29,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294238949] [2020-07-08 12:27:29,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:27:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 12:27:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 12:27:29,782 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-08 12:27:29,783 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 12:27:29,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 12:27:29,846 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-08 12:27:29,847 WARN L170 areAnnotationChecker]: myexitENTRY has no Hoare annotation [2020-07-08 12:27:29,847 WARN L170 areAnnotationChecker]: __bswap_32ENTRY has no Hoare annotation [2020-07-08 12:27:29,847 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 12:27:29,847 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 12:27:29,847 WARN L170 areAnnotationChecker]: __bswap_64ENTRY has no Hoare annotation [2020-07-08 12:27:29,847 WARN L170 areAnnotationChecker]: __uint16_identityENTRY has no Hoare annotation [2020-07-08 12:27:29,847 WARN L170 areAnnotationChecker]: __uint64_identityENTRY has no Hoare annotation [2020-07-08 12:27:29,848 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 12:27:29,848 WARN L170 areAnnotationChecker]: __uint32_identityENTRY has no Hoare annotation [2020-07-08 12:27:29,848 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 12:27:29,849 WARN L170 areAnnotationChecker]: L514 has no Hoare annotation [2020-07-08 12:27:29,854 WARN L170 areAnnotationChecker]: __bswap_32FINAL has no Hoare annotation [2020-07-08 12:27:29,854 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 12:27:29,854 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 12:27:29,854 WARN L170 areAnnotationChecker]: __bswap_64FINAL has no Hoare annotation [2020-07-08 12:27:29,855 WARN L170 areAnnotationChecker]: __uint16_identityFINAL has no Hoare annotation [2020-07-08 12:27:29,856 WARN L170 areAnnotationChecker]: __uint64_identityFINAL has no Hoare annotation [2020-07-08 12:27:29,856 WARN L170 areAnnotationChecker]: L524 has no Hoare annotation [2020-07-08 12:27:29,856 WARN L170 areAnnotationChecker]: L524 has no Hoare annotation [2020-07-08 12:27:29,856 WARN L170 areAnnotationChecker]: __uint32_identityFINAL has no Hoare annotation [2020-07-08 12:27:29,857 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 12:27:29,857 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 12:27:29,857 WARN L170 areAnnotationChecker]: L524-1 has no Hoare annotation [2020-07-08 12:27:29,857 WARN L170 areAnnotationChecker]: L524-1 has no Hoare annotation [2020-07-08 12:27:29,857 WARN L170 areAnnotationChecker]: L524-3 has no Hoare annotation [2020-07-08 12:27:29,857 WARN L170 areAnnotationChecker]: L527-5 has no Hoare annotation [2020-07-08 12:27:29,857 WARN L170 areAnnotationChecker]: L527-5 has no Hoare annotation [2020-07-08 12:27:29,857 WARN L170 areAnnotationChecker]: L535-4 has no Hoare annotation [2020-07-08 12:27:29,857 WARN L170 areAnnotationChecker]: L535-4 has no Hoare annotation [2020-07-08 12:27:29,858 WARN L170 areAnnotationChecker]: L527-1 has no Hoare annotation [2020-07-08 12:27:29,858 WARN L170 areAnnotationChecker]: L527-1 has no Hoare annotation [2020-07-08 12:27:29,858 WARN L170 areAnnotationChecker]: L535-5 has no Hoare annotation [2020-07-08 12:27:29,858 WARN L170 areAnnotationChecker]: L535 has no Hoare annotation [2020-07-08 12:27:29,858 WARN L170 areAnnotationChecker]: L535 has no Hoare annotation [2020-07-08 12:27:29,858 WARN L170 areAnnotationChecker]: L527-3 has no Hoare annotation [2020-07-08 12:27:29,858 WARN L170 areAnnotationChecker]: L527-3 has no Hoare annotation [2020-07-08 12:27:29,858 WARN L170 areAnnotationChecker]: L548-3 has no Hoare annotation [2020-07-08 12:27:29,858 WARN L170 areAnnotationChecker]: L548-3 has no Hoare annotation [2020-07-08 12:27:29,859 WARN L170 areAnnotationChecker]: L535-2 has no Hoare annotation [2020-07-08 12:27:29,859 WARN L170 areAnnotationChecker]: L535-2 has no Hoare annotation [2020-07-08 12:27:29,859 WARN L170 areAnnotationChecker]: L531 has no Hoare annotation [2020-07-08 12:27:29,859 WARN L170 areAnnotationChecker]: L531 has no Hoare annotation [2020-07-08 12:27:29,859 WARN L170 areAnnotationChecker]: L552-2 has no Hoare annotation [2020-07-08 12:27:29,859 WARN L170 areAnnotationChecker]: L552-2 has no Hoare annotation [2020-07-08 12:27:29,859 WARN L170 areAnnotationChecker]: L548-1 has no Hoare annotation [2020-07-08 12:27:29,859 WARN L170 areAnnotationChecker]: L548-1 has no Hoare annotation [2020-07-08 12:27:29,859 WARN L170 areAnnotationChecker]: L539 has no Hoare annotation [2020-07-08 12:27:29,860 WARN L170 areAnnotationChecker]: L539 has no Hoare annotation [2020-07-08 12:27:29,860 WARN L170 areAnnotationChecker]: L531-1 has no Hoare annotation [2020-07-08 12:27:29,860 WARN L170 areAnnotationChecker]: L531-1 has no Hoare annotation [2020-07-08 12:27:29,860 WARN L170 areAnnotationChecker]: L531-3 has no Hoare annotation [2020-07-08 12:27:29,860 WARN L170 areAnnotationChecker]: L552-3 has no Hoare annotation [2020-07-08 12:27:29,860 WARN L170 areAnnotationChecker]: L552 has no Hoare annotation [2020-07-08 12:27:29,860 WARN L170 areAnnotationChecker]: L552 has no Hoare annotation [2020-07-08 12:27:29,860 WARN L170 areAnnotationChecker]: L539-1 has no Hoare annotation [2020-07-08 12:27:29,860 WARN L170 areAnnotationChecker]: L539-1 has no Hoare annotation [2020-07-08 12:27:29,861 WARN L170 areAnnotationChecker]: L539-3 has no Hoare annotation [2020-07-08 12:27:29,861 WARN L170 areAnnotationChecker]: L556 has no Hoare annotation [2020-07-08 12:27:29,861 WARN L170 areAnnotationChecker]: L556 has no Hoare annotation [2020-07-08 12:27:29,862 WARN L170 areAnnotationChecker]: L557 has no Hoare annotation [2020-07-08 12:27:29,862 WARN L170 areAnnotationChecker]: L557 has no Hoare annotation [2020-07-08 12:27:29,862 WARN L170 areAnnotationChecker]: L556-2 has no Hoare annotation [2020-07-08 12:27:29,863 WARN L170 areAnnotationChecker]: L559-3 has no Hoare annotation [2020-07-08 12:27:29,863 WARN L170 areAnnotationChecker]: L559-3 has no Hoare annotation [2020-07-08 12:27:29,863 WARN L170 areAnnotationChecker]: L559-4 has no Hoare annotation [2020-07-08 12:27:29,863 WARN L170 areAnnotationChecker]: L559-1 has no Hoare annotation [2020-07-08 12:27:29,863 WARN L170 areAnnotationChecker]: L559-1 has no Hoare annotation [2020-07-08 12:27:29,863 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 12:27:29,863 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 12:27:29,863 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 12:27:29,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 12:27:29 BoogieIcfgContainer [2020-07-08 12:27:29,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 12:27:29,873 INFO L168 Benchmark]: Toolchain (without parser) took 2984.17 ms. Allocated memory was 135.3 MB in the beginning and 225.4 MB in the end (delta: 90.2 MB). Free memory was 97.8 MB in the beginning and 125.7 MB in the end (delta: -27.9 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. [2020-07-08 12:27:29,875 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 135.3 MB. Free memory was 117.1 MB in the beginning and 116.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-08 12:27:29,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 656.35 ms. Allocated memory was 135.3 MB in the beginning and 198.7 MB in the end (delta: 63.4 MB). Free memory was 97.6 MB in the beginning and 164.0 MB in the end (delta: -66.4 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-07-08 12:27:29,877 INFO L168 Benchmark]: Boogie Preprocessor took 87.20 ms. Allocated memory is still 198.7 MB. Free memory was 164.0 MB in the beginning and 160.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-07-08 12:27:29,878 INFO L168 Benchmark]: RCFGBuilder took 839.03 ms. Allocated memory is still 198.7 MB. Free memory was 160.4 MB in the beginning and 97.2 MB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. [2020-07-08 12:27:29,879 INFO L168 Benchmark]: TraceAbstraction took 1394.27 ms. Allocated memory was 198.7 MB in the beginning and 225.4 MB in the end (delta: 26.7 MB). Free memory was 96.5 MB in the beginning and 125.7 MB in the end (delta: -29.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 12:27:29,890 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 135.3 MB. Free memory was 117.1 MB in the beginning and 116.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 656.35 ms. Allocated memory was 135.3 MB in the beginning and 198.7 MB in the end (delta: 63.4 MB). Free memory was 97.6 MB in the beginning and 164.0 MB in the end (delta: -66.4 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.20 ms. Allocated memory is still 198.7 MB. Free memory was 164.0 MB in the beginning and 160.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 839.03 ms. Allocated memory is still 198.7 MB. Free memory was 160.4 MB in the beginning and 97.2 MB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1394.27 ms. Allocated memory was 198.7 MB in the beginning and 225.4 MB in the end (delta: 26.7 MB). Free memory was 96.5 MB in the beginning and 125.7 MB in the end (delta: -29.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 557]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L521] int i = 0; [L522] int y = 0; [L523] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, y=0] [L524] COND FALSE !(a == 0) VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, y=0] [L525] List t; [L526] List p = a; VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L527] i < 10 && __VERIFIER_nondet_int() [L527] i < 10 && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, a={-1:0}, i=0, i < 10 && __VERIFIER_nondet_int()=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L527] COND FALSE !(i < 10 && __VERIFIER_nondet_int()) [L535] y < 10 && __VERIFIER_nondet_int() [L535] y < 10 && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0, y < 10 && __VERIFIER_nondet_int()=0] [L535] COND FALSE !(y < 10 && __VERIFIER_nondet_int()) [L543] p->h = 3 [L544] p->n = 0 [L545] i = 0 [L546] y = 0 [L547] p = a VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L548] EXPR p->h VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3, y=0] [L548] COND FALSE !(p->h == 1) [L552] EXPR p->h VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3, y=0] [L552] COND FALSE !(p->h == 2) [L556] EXPR p->h VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3, y=0] [L556] COND TRUE p->h != 3 || (i + y) < 20 [L557] __VERIFIER_error() VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 2 SDslu, 4 SDs, 0 SdLazy, 40 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 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 DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...