/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/forester-heap/dll-optional-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:08:22,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:08:22,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:08:22,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:08:22,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:08:22,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:08:22,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:08:22,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:08:22,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:08:22,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:08:22,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:08:22,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:08:22,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:08:22,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:08:22,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:08:22,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:08:22,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:08:22,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:08:22,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:08:22,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:08:22,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:08:22,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:08:22,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:08:22,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:08:22,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-10 15:08:22,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-10 15:08:22,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-10 15:08:22,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-10 15:08:22,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-10 15:08:22,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-10 15:08:22,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 15:08:22,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 15:08:22,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 15:08:22,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 15:08:22,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 15:08:22,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 15:08:22,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 15:08:22,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 15:08:22,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:08:22,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:08:22,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:08:22,731 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 [2020-07-10 15:08:22,766 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:08:22,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:08:22,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:08:22,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:08:22,769 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:08:22,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:08:22,770 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:08:22,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:08:22,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:08:22,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:08:22,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:08:22,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:08:22,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:08:22,771 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:08:22,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:08:22,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:08:22,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:08:22,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:08:22,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:08:22,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:08:22,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:08:22,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:08:22,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:08:22,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:08:22,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:08:22,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:08:22,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:08:22,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:08:22,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:08:22,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:08:23,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:08:23,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:08:23,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:08:23,084 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:08:23,084 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:08:23,085 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-optional-2.i [2020-07-10 15:08:23,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d02dc6b4/34b5762bcd6240489c3d720d37a8b9bd/FLAG3bc349ebf [2020-07-10 15:08:23,764 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:08:23,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-optional-2.i [2020-07-10 15:08:23,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d02dc6b4/34b5762bcd6240489c3d720d37a8b9bd/FLAG3bc349ebf [2020-07-10 15:08:24,117 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d02dc6b4/34b5762bcd6240489c3d720d37a8b9bd [2020-07-10 15:08:24,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:08:24,128 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:08:24,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:08:24,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:08:24,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:08:24,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:08:24" (1/1) ... [2020-07-10 15:08:24,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ab22aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:08:24, skipping insertion in model container [2020-07-10 15:08:24,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:08:24" (1/1) ... [2020-07-10 15:08:24,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:08:24,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:08:24,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:08:24,707 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:08:24,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:08:24,815 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:08:24,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:08:24 WrapperNode [2020-07-10 15:08:24,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:08:24,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:08:24,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:08:24,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:08:24,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:08:24" (1/1) ... [2020-07-10 15:08:24,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:08:24" (1/1) ... [2020-07-10 15:08:24,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:08:24" (1/1) ... [2020-07-10 15:08:24,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:08:24" (1/1) ... [2020-07-10 15:08:24,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:08:24" (1/1) ... [2020-07-10 15:08:24,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:08:24" (1/1) ... [2020-07-10 15:08:24,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:08:24" (1/1) ... [2020-07-10 15:08:24,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:08:24,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:08:24,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:08:24,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:08:24,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:08:24" (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 [2020-07-10 15:08:24,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:08:24,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:08:24,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:08:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-10 15:08:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-10 15:08:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-10 15:08:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-10 15:08:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-10 15:08:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-10 15:08:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-10 15:08:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-10 15:08:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-10 15:08:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-10 15:08:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-10 15:08:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-10 15:08:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-10 15:08:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-10 15:08:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-10 15:08:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-10 15:08:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-10 15:08:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-10 15:08:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-10 15:08:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-10 15:08:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-10 15:08:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-10 15:08:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-10 15:08:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-10 15:08:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-10 15:08:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-10 15:08:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-10 15:08:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-10 15:08:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-10 15:08:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-10 15:08:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-10 15:08:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-10 15:08:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-10 15:08:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-10 15:08:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-10 15:08:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-10 15:08:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-10 15:08:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-10 15:08:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-10 15:08:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-10 15:08:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-10 15:08:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-10 15:08:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-10 15:08:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-10 15:08:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-10 15:08:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-10 15:08:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-10 15:08:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-10 15:08:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-10 15:08:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-10 15:08:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-10 15:08:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-10 15:08:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-10 15:08:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-10 15:08:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-10 15:08:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-10 15:08:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-10 15:08:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-10 15:08:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-10 15:08:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 15:08:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-10 15:08:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-10 15:08:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-10 15:08:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-10 15:08:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-10 15:08:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-10 15:08:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-10 15:08:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-10 15:08:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-10 15:08:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-10 15:08:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-10 15:08:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-10 15:08:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-10 15:08:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-10 15:08:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-10 15:08:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-10 15:08:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-10 15:08:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-10 15:08:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-10 15:08:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-10 15:08:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-10 15:08:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-10 15:08:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-10 15:08:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-10 15:08:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-10 15:08:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-10 15:08:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-10 15:08:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-10 15:08:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-10 15:08:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-10 15:08:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-10 15:08:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-10 15:08:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-10 15:08:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-10 15:08:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-10 15:08:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-10 15:08:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-10 15:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-10 15:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-10 15:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-10 15:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-10 15:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-10 15:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-10 15:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-10 15:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-10 15:08:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:08:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-10 15:08:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:08:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:08:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:08:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:08:25,713 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:08:25,713 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-10 15:08:25,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:08:25 BoogieIcfgContainer [2020-07-10 15:08:25,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:08:25,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:08:25,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:08:25,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:08:25,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:08:24" (1/3) ... [2020-07-10 15:08:25,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e62b647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:08:25, skipping insertion in model container [2020-07-10 15:08:25,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:08:24" (2/3) ... [2020-07-10 15:08:25,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e62b647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:08:25, skipping insertion in model container [2020-07-10 15:08:25,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:08:25" (3/3) ... [2020-07-10 15:08:25,725 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-optional-2.i [2020-07-10 15:08:25,736 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:08:25,744 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:08:25,757 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:08:25,781 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:08:25,781 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:08:25,781 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:08:25,781 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:08:25,781 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:08:25,782 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:08:25,782 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:08:25,782 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:08:25,800 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-07-10 15:08:25,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-10 15:08:25,805 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:08:25,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:08:25,807 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:08:25,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:08:25,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1877010449, now seen corresponding path program 1 times [2020-07-10 15:08:25,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:08:25,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995484903] [2020-07-10 15:08:25,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:08:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:08:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:08:26,099 INFO L280 TraceCheckUtils]: 0: Hoare triple {39#(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; {34#true} is VALID [2020-07-10 15:08:26,100 INFO L280 TraceCheckUtils]: 1: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-10 15:08:26,100 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {34#true} {34#true} #104#return; {34#true} is VALID [2020-07-10 15:08:26,104 INFO L263 TraceCheckUtils]: 0: Hoare triple {34#true} call ULTIMATE.init(); {39#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:08:26,105 INFO L280 TraceCheckUtils]: 1: Hoare triple {39#(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; {34#true} is VALID [2020-07-10 15:08:26,105 INFO L280 TraceCheckUtils]: 2: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-10 15:08:26,105 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {34#true} {34#true} #104#return; {34#true} is VALID [2020-07-10 15:08:26,106 INFO L263 TraceCheckUtils]: 4: Hoare triple {34#true} call #t~ret20 := main(); {34#true} is VALID [2020-07-10 15:08:26,106 INFO L280 TraceCheckUtils]: 5: Hoare triple {34#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(16);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0, 0, ~head~0.base, ~head~0.offset, 4);call write~$Pointer$(0, 0, ~head~0.base, 4 + ~head~0.offset, 4);assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {34#true} is VALID [2020-07-10 15:08:26,106 INFO L280 TraceCheckUtils]: 6: Hoare triple {34#true} assume 0 != #t~nondet1;havoc #t~nondet1;call write~int(2, ~head~0.base, 12 + ~head~0.offset, 4);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(16);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~head~0.base, 8 + ~head~0.offset, 4);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~head~0.base, 8 + ~head~0.offset, 4);call write~$Pointer$(0, 0, #t~mem3.base, #t~mem3.offset, 4);havoc #t~mem3.base, #t~mem3.offset; {34#true} is VALID [2020-07-10 15:08:26,107 INFO L280 TraceCheckUtils]: 7: Hoare triple {34#true} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {34#true} is VALID [2020-07-10 15:08:26,110 INFO L280 TraceCheckUtils]: 8: Hoare triple {34#true} assume !true; {35#false} is VALID [2020-07-10 15:08:26,111 INFO L280 TraceCheckUtils]: 9: Hoare triple {35#false} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {35#false} is VALID [2020-07-10 15:08:26,111 INFO L280 TraceCheckUtils]: 10: Hoare triple {35#false} assume !!(~x~0.base != 0 || ~x~0.offset != 0); {35#false} is VALID [2020-07-10 15:08:26,111 INFO L280 TraceCheckUtils]: 11: Hoare triple {35#false} call #t~mem13 := read~int(~x~0.base, 12 + ~x~0.offset, 4);#t~short15 := 2 == #t~mem13; {35#false} is VALID [2020-07-10 15:08:26,112 INFO L280 TraceCheckUtils]: 12: Hoare triple {35#false} assume #t~short15;call #t~mem14.base, #t~mem14.offset := read~$Pointer$(~x~0.base, 8 + ~x~0.offset, 4);#t~short15 := #t~mem14.base == ~x~0.base && #t~mem14.offset == ~x~0.offset; {35#false} is VALID [2020-07-10 15:08:26,112 INFO L280 TraceCheckUtils]: 13: Hoare triple {35#false} assume !#t~short15;havoc #t~short15;havoc #t~mem13;havoc #t~mem14.base, #t~mem14.offset; {35#false} is VALID [2020-07-10 15:08:26,112 INFO L280 TraceCheckUtils]: 14: Hoare triple {35#false} assume !false; {35#false} is VALID [2020-07-10 15:08:26,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:08:26,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995484903] [2020-07-10 15:08:26,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:08:26,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-10 15:08:26,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437311050] [2020-07-10 15:08:26,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-07-10 15:08:26,133 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:08:26,138 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-10 15:08:26,186 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:08:26,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-10 15:08:26,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:08:26,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-10 15:08:26,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 15:08:26,199 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2020-07-10 15:08:26,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:08:26,464 INFO L93 Difference]: Finished difference Result 49 states and 71 transitions. [2020-07-10 15:08:26,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-10 15:08:26,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-07-10 15:08:26,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:08:26,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:08:26,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2020-07-10 15:08:26,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:08:26,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2020-07-10 15:08:26,487 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 71 transitions. [2020-07-10 15:08:26,602 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:08:26,614 INFO L225 Difference]: With dead ends: 49 [2020-07-10 15:08:26,615 INFO L226 Difference]: Without dead ends: 22 [2020-07-10 15:08:26,618 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 [2020-07-10 15:08:26,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-07-10 15:08:26,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-07-10 15:08:26,660 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:08:26,661 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand 22 states. [2020-07-10 15:08:26,661 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2020-07-10 15:08:26,662 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2020-07-10 15:08:26,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:08:26,666 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2020-07-10 15:08:26,666 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2020-07-10 15:08:26,667 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:08:26,667 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:08:26,667 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2020-07-10 15:08:26,667 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2020-07-10 15:08:26,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:08:26,671 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2020-07-10 15:08:26,672 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2020-07-10 15:08:26,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:08:26,672 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:08:26,672 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:08:26,673 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:08:26,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-10 15:08:26,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2020-07-10 15:08:26,677 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 15 [2020-07-10 15:08:26,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:08:26,678 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2020-07-10 15:08:26,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-10 15:08:26,678 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2020-07-10 15:08:26,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-10 15:08:26,679 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:08:26,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:08:26,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:08:26,679 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:08:26,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:08:26,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1827708973, now seen corresponding path program 1 times [2020-07-10 15:08:26,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:08:26,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985822202] [2020-07-10 15:08:26,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:08:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:08:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:08:26,849 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:08:26,850 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:08:26,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:08:26,886 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 15:08:26,886 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:08:26,886 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:08:26,886 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:08:26,886 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:08:26,887 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:08:26,887 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:08:26,887 WARN L170 areAnnotationChecker]: L989 has no Hoare annotation [2020-07-10 15:08:26,887 WARN L170 areAnnotationChecker]: L989 has no Hoare annotation [2020-07-10 15:08:26,887 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:08:26,888 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:08:26,888 WARN L170 areAnnotationChecker]: L989-4 has no Hoare annotation [2020-07-10 15:08:26,888 WARN L170 areAnnotationChecker]: L989-2 has no Hoare annotation [2020-07-10 15:08:26,888 WARN L170 areAnnotationChecker]: L989-2 has no Hoare annotation [2020-07-10 15:08:26,888 WARN L170 areAnnotationChecker]: L992-7 has no Hoare annotation [2020-07-10 15:08:26,888 WARN L170 areAnnotationChecker]: L992-7 has no Hoare annotation [2020-07-10 15:08:26,889 WARN L170 areAnnotationChecker]: L992-8 has no Hoare annotation [2020-07-10 15:08:26,889 WARN L170 areAnnotationChecker]: L992-1 has no Hoare annotation [2020-07-10 15:08:26,889 WARN L170 areAnnotationChecker]: L992-1 has no Hoare annotation [2020-07-10 15:08:26,889 WARN L170 areAnnotationChecker]: L996-2 has no Hoare annotation [2020-07-10 15:08:26,889 WARN L170 areAnnotationChecker]: L996-2 has no Hoare annotation [2020-07-10 15:08:26,889 WARN L170 areAnnotationChecker]: L996-2 has no Hoare annotation [2020-07-10 15:08:26,889 WARN L170 areAnnotationChecker]: L992-3 has no Hoare annotation [2020-07-10 15:08:26,890 WARN L170 areAnnotationChecker]: L992-3 has no Hoare annotation [2020-07-10 15:08:26,890 WARN L170 areAnnotationChecker]: L996-3 has no Hoare annotation [2020-07-10 15:08:26,890 WARN L170 areAnnotationChecker]: L998-7 has no Hoare annotation [2020-07-10 15:08:26,890 WARN L170 areAnnotationChecker]: L998-7 has no Hoare annotation [2020-07-10 15:08:26,890 WARN L170 areAnnotationChecker]: L992-5 has no Hoare annotation [2020-07-10 15:08:26,890 WARN L170 areAnnotationChecker]: L992-5 has no Hoare annotation [2020-07-10 15:08:26,891 WARN L170 areAnnotationChecker]: L1004-2 has no Hoare annotation [2020-07-10 15:08:26,891 WARN L170 areAnnotationChecker]: L1004-2 has no Hoare annotation [2020-07-10 15:08:26,891 WARN L170 areAnnotationChecker]: L1004-2 has no Hoare annotation [2020-07-10 15:08:26,891 WARN L170 areAnnotationChecker]: L998-1 has no Hoare annotation [2020-07-10 15:08:26,891 WARN L170 areAnnotationChecker]: L998-1 has no Hoare annotation [2020-07-10 15:08:26,891 WARN L170 areAnnotationChecker]: L998-8 has no Hoare annotation [2020-07-10 15:08:26,891 WARN L170 areAnnotationChecker]: L1004-3 has no Hoare annotation [2020-07-10 15:08:26,892 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-10 15:08:26,892 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-10 15:08:26,892 WARN L170 areAnnotationChecker]: L998-3 has no Hoare annotation [2020-07-10 15:08:26,892 WARN L170 areAnnotationChecker]: L998-3 has no Hoare annotation [2020-07-10 15:08:26,892 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:08:26,892 WARN L170 areAnnotationChecker]: L1008-2 has no Hoare annotation [2020-07-10 15:08:26,893 WARN L170 areAnnotationChecker]: L998-4 has no Hoare annotation [2020-07-10 15:08:26,893 WARN L170 areAnnotationChecker]: L998-4 has no Hoare annotation [2020-07-10 15:08:26,893 WARN L170 areAnnotationChecker]: L998-6 has no Hoare annotation [2020-07-10 15:08:26,893 WARN L170 areAnnotationChecker]: L998-6 has no Hoare annotation [2020-07-10 15:08:26,893 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:08:26,893 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. [2020-07-10 15:08:26,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:08:26 BoogieIcfgContainer [2020-07-10 15:08:26,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:08:26,900 INFO L168 Benchmark]: Toolchain (without parser) took 2771.13 ms. Allocated memory was 138.4 MB in the beginning and 234.4 MB in the end (delta: 95.9 MB). Free memory was 101.5 MB in the beginning and 138.7 MB in the end (delta: -37.2 MB). Peak memory consumption was 58.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:08:26,901 INFO L168 Benchmark]: CDTParser took 1.39 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 15:08:26,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.50 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 167.7 MB in the end (delta: -66.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-07-10 15:08:26,903 INFO L168 Benchmark]: Boogie Preprocessor took 75.18 ms. Allocated memory is still 201.9 MB. Free memory was 167.7 MB in the beginning and 163.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-10 15:08:26,904 INFO L168 Benchmark]: RCFGBuilder took 824.88 ms. Allocated memory is still 201.9 MB. Free memory was 163.7 MB in the beginning and 103.8 MB in the end (delta: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 7.1 GB. [2020-07-10 15:08:26,905 INFO L168 Benchmark]: TraceAbstraction took 1177.94 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 103.1 MB in the beginning and 138.7 MB in the end (delta: -35.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 15:08:26,909 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 1.39 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 687.50 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 167.7 MB in the end (delta: -66.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 75.18 ms. Allocated memory is still 201.9 MB. Free memory was 167.7 MB in the beginning and 163.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 824.88 ms. Allocated memory is still 201.9 MB. Free memory was 163.7 MB in the beginning and 103.8 MB in the end (delta: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1177.94 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 103.1 MB in the beginning and 138.7 MB in the end (delta: -35.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 998]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); [L987] head->next = ((void*)0) [L988] head->prev = ((void*)0) [L989] COND TRUE __VERIFIER_nondet_int() [L989] head->data = 2 [L989] head->opt = malloc(sizeof(SLL)) [L989] EXPR head->opt [L989] head->opt->next = ((void*)0) [L990] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L996] COND TRUE x != ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L998] EXPR x->data [L998] EXPR x->data == 2 && x->opt == x [L998] EXPR x->opt [L998] EXPR x->data == 2 && x->opt == x VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=2, x->data == 2 && x->opt == x=0, x->opt={-2:0}] [L998] COND TRUE !(x->data == 2 && x->opt == x) [L998] __VERIFIER_error() VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 37 SDtfs, 0 SDslu, 4 SDs, 0 SdLazy, 35 SolverSat, 1 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=31occurred 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, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 322 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...