java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/memsafety/test-0158_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 15:33:43,146 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 15:33:43,147 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 15:33:43,158 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 15:33:43,159 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 15:33:43,159 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 15:33:43,160 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 15:33:43,162 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 15:33:43,164 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 15:33:43,165 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 15:33:43,165 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 15:33:43,166 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 15:33:43,166 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 15:33:43,167 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 15:33:43,168 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 15:33:43,170 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 15:33:43,171 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 15:33:43,173 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 15:33:43,174 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 15:33:43,175 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 15:33:43,177 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 15:33:43,177 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 15:33:43,177 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 15:33:43,178 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 15:33:43,178 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 15:33:43,179 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 15:33:43,180 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 15:33:43,180 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 15:33:43,181 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 15:33:43,181 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 15:33:43,182 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 15:33:43,182 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-04-11 15:33:43,203 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 15:33:43,204 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 15:33:43,204 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 15:33:43,205 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 15:33:43,205 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 15:33:43,205 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 15:33:43,205 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 15:33:43,205 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 15:33:43,205 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 15:33:43,206 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 15:33:43,206 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 15:33:43,206 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 15:33:43,206 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 15:33:43,206 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 15:33:43,206 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 15:33:43,207 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 15:33:43,207 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 15:33:43,207 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 15:33:43,207 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 15:33:43,207 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 15:33:43,207 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 15:33:43,207 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 15:33:43,208 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 15:33:43,208 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 15:33:43,237 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 15:33:43,246 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 15:33:43,250 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 15:33:43,251 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 15:33:43,251 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 15:33:43,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0158_false-valid-free.i [2018-04-11 15:33:43,548 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGde07bb560 [2018-04-11 15:33:43,710 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 15:33:43,710 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 15:33:43,711 INFO L168 CDTParser]: Scanning test-0158_false-valid-free.i [2018-04-11 15:33:43,720 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 15:33:43,720 INFO L215 ultiparseSymbolTable]: [2018-04-11 15:33:43,720 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 15:33:43,721 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in test-0158_false-valid-free.i [2018-04-11 15:33:43,721 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 15:33:43,721 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____u_long in test-0158_false-valid-free.i [2018-04-11 15:33:43,721 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__ulong in test-0158_false-valid-free.i [2018-04-11 15:33:43,721 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__pthread_rwlockattr_t in 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Global variable declaration of __U_MULTI_ftest______false_valid_free_i__pthread_attr_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__size_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____int64_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____intptr_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____mode_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__pthread_once_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__wchar_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__pthread_mutex_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____socklen_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____u_int in test-0158_false-valid-free.i [2018-04-11 15:33:43,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__off_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____suseconds_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__time_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____int32_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__id_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,728 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____rlim_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__fsblkcnt_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__dev_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__uint in test-0158_false-valid-free.i [2018-04-11 15:33:43,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__u_int in test-0158_false-valid-free.i [2018-04-11 15:33:43,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__nlink_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____u_char in test-0158_false-valid-free.i [2018-04-11 15:33:43,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____sig_atomic_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____pid_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____uid_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__pthread_mutexattr_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____off_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,729 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____gid_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____locale_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__fd_mask in test-0158_false-valid-free.i [2018-04-11 15:33:43,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__fsfilcnt_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____uint64_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____timer_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__int32_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____id_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__key_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__pthread_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,730 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____ssize_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__u_int8_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____fd_mask in test-0158_false-valid-free.i [2018-04-11 15:33:43,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__timer_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__clockid_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,731 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__u_int32_t in test-0158_false-valid-free.i [2018-04-11 15:33:43,744 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGde07bb560 [2018-04-11 15:33:43,747 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 15:33:43,748 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 15:33:43,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 15:33:43,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 15:33:43,752 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 15:33:43,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:33:43" (1/1) ... [2018-04-11 15:33:43,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa7e6ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:33:43, skipping insertion in model container [2018-04-11 15:33:43,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:33:43" (1/1) ... [2018-04-11 15:33:43,766 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:33:43,789 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:33:43,914 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:33:43,951 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:33:43,961 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 159 non ball SCCs. Number of states in SCCs 159. [2018-04-11 15:33:44,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:33:44 WrapperNode [2018-04-11 15:33:44,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 15:33:44,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 15:33:44,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 15:33:44,013 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 15:33:44,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:33:44" (1/1) ... [2018-04-11 15:33:44,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:33:44" (1/1) ... [2018-04-11 15:33:44,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:33:44" (1/1) ... [2018-04-11 15:33:44,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:33:44" (1/1) ... [2018-04-11 15:33:44,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:33:44" (1/1) ... [2018-04-11 15:33:44,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:33:44" (1/1) ... [2018-04-11 15:33:44,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:33:44" (1/1) ... [2018-04-11 15:33:44,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 15:33:44,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 15:33:44,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 15:33:44,055 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 15:33:44,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:33:44" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-04-11 15:33:44,152 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 15:33:44,152 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 15:33:44,152 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 15:33:44,152 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-11 15:33:44,152 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 15:33:44,152 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 15:33:44,153 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 15:33:44,154 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 15:33:44,155 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 15:33:44,156 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 15:33:44,157 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 15:33:44,157 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 15:33:44,157 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 15:33:44,157 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 15:33:44,157 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 15:33:44,157 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 15:33:44,157 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 15:33:44,157 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 15:33:44,157 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 15:33:44,157 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 15:33:44,157 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 15:33:44,157 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 15:33:44,157 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 15:33:44,158 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 15:33:44,158 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 15:33:44,158 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 15:33:44,158 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 15:33:44,158 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 15:33:44,158 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 15:33:44,158 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 15:33:44,158 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 15:33:44,158 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 15:33:44,158 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 15:33:44,158 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 15:33:44,158 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 15:33:44,158 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure memcpy [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure memmove [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure memccpy [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure memcmp [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure memchr [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure strcpy [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure strncpy [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure strcat [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure strncat [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure strcmp [2018-04-11 15:33:44,159 INFO L128 BoogieDeclarations]: Found specification of procedure strncmp [2018-04-11 15:33:44,160 INFO L128 BoogieDeclarations]: Found specification of procedure strcoll [2018-04-11 15:33:44,160 INFO L128 BoogieDeclarations]: Found specification of procedure strxfrm [2018-04-11 15:33:44,160 INFO L128 BoogieDeclarations]: Found specification of procedure strcoll_l [2018-04-11 15:33:44,160 INFO L128 BoogieDeclarations]: Found specification of procedure strxfrm_l [2018-04-11 15:33:44,160 INFO L128 BoogieDeclarations]: Found specification of procedure strdup [2018-04-11 15:33:44,160 INFO L128 BoogieDeclarations]: Found specification of procedure strndup [2018-04-11 15:33:44,160 INFO L128 BoogieDeclarations]: Found specification of procedure strchr [2018-04-11 15:33:44,160 INFO L128 BoogieDeclarations]: Found specification of procedure strrchr [2018-04-11 15:33:44,160 INFO L128 BoogieDeclarations]: Found specification of procedure strcspn [2018-04-11 15:33:44,160 INFO L128 BoogieDeclarations]: Found specification of procedure strspn [2018-04-11 15:33:44,161 INFO L128 BoogieDeclarations]: Found specification of procedure strpbrk [2018-04-11 15:33:44,161 INFO L128 BoogieDeclarations]: Found specification of procedure strstr [2018-04-11 15:33:44,161 INFO L128 BoogieDeclarations]: Found specification of procedure strtok [2018-04-11 15:33:44,161 INFO L128 BoogieDeclarations]: Found specification of procedure __strtok_r [2018-04-11 15:33:44,161 INFO L128 BoogieDeclarations]: Found specification of procedure strtok_r [2018-04-11 15:33:44,161 INFO L128 BoogieDeclarations]: Found specification of procedure strlen [2018-04-11 15:33:44,161 INFO L128 BoogieDeclarations]: Found specification of procedure strnlen [2018-04-11 15:33:44,161 INFO L128 BoogieDeclarations]: Found specification of procedure strerror [2018-04-11 15:33:44,161 INFO L128 BoogieDeclarations]: Found specification of procedure strerror_r [2018-04-11 15:33:44,161 INFO L128 BoogieDeclarations]: Found specification of procedure strerror_l [2018-04-11 15:33:44,161 INFO L128 BoogieDeclarations]: Found specification of procedure __bzero [2018-04-11 15:33:44,161 INFO L128 BoogieDeclarations]: Found specification of procedure bcopy [2018-04-11 15:33:44,162 INFO L128 BoogieDeclarations]: Found specification of procedure bzero [2018-04-11 15:33:44,162 INFO L128 BoogieDeclarations]: Found specification of procedure bcmp [2018-04-11 15:33:44,162 INFO L128 BoogieDeclarations]: Found specification of procedure index [2018-04-11 15:33:44,162 INFO L128 BoogieDeclarations]: Found specification of procedure rindex [2018-04-11 15:33:44,162 INFO L128 BoogieDeclarations]: Found specification of procedure ffs [2018-04-11 15:33:44,162 INFO L128 BoogieDeclarations]: Found specification of procedure strcasecmp [2018-04-11 15:33:44,162 INFO L128 BoogieDeclarations]: Found specification of procedure strncasecmp [2018-04-11 15:33:44,162 INFO L128 BoogieDeclarations]: Found specification of procedure strsep [2018-04-11 15:33:44,162 INFO L128 BoogieDeclarations]: Found specification of procedure strsignal [2018-04-11 15:33:44,162 INFO L128 BoogieDeclarations]: Found specification of procedure __stpcpy [2018-04-11 15:33:44,162 INFO L128 BoogieDeclarations]: Found specification of procedure stpcpy [2018-04-11 15:33:44,163 INFO L128 BoogieDeclarations]: Found specification of procedure __stpncpy [2018-04-11 15:33:44,163 INFO L128 BoogieDeclarations]: Found specification of procedure stpncpy [2018-04-11 15:33:44,163 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 15:33:44,163 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 15:33:44,163 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-11 15:33:44,163 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-11 15:33:44,163 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 15:33:44,163 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 15:33:44,163 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 15:33:44,163 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 15:33:44,163 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 15:33:44,163 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 15:33:44,459 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 15:33:44,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:33:44 BoogieIcfgContainer [2018-04-11 15:33:44,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 15:33:44,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 15:33:44,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 15:33:44,462 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 15:33:44,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 03:33:43" (1/3) ... [2018-04-11 15:33:44,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a373a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:33:44, skipping insertion in model container [2018-04-11 15:33:44,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:33:44" (2/3) ... [2018-04-11 15:33:44,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a373a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:33:44, skipping insertion in model container [2018-04-11 15:33:44,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:33:44" (3/3) ... [2018-04-11 15:33:44,464 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-free.i [2018-04-11 15:33:44,469 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 15:33:44,475 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-04-11 15:33:44,509 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 15:33:44,509 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 15:33:44,509 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 15:33:44,509 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 15:33:44,510 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 15:33:44,510 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 15:33:44,510 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 15:33:44,510 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 15:33:44,510 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 15:33:44,511 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 15:33:44,521 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-04-11 15:33:44,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-11 15:33:44,528 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:33:44,529 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:33:44,529 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12AssertViolationMEMORY_FREE]=== [2018-04-11 15:33:44,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1804432604, now seen corresponding path program 1 times [2018-04-11 15:33:44,532 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:33:44,533 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:33:44,566 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:33:44,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:33:44,567 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:33:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:33:44,601 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:33:44,614 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:33:44,614 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:33:44,614 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:33:44,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:33:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:33:44,638 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:33:44,665 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:33:44,666 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:33:44,670 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:44,670 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 15:33:44,688 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 15:33:44,689 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:33:44,695 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:33:44,695 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-11 15:33:44,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:33:44,710 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:33:44,710 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 15:33:44,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 15:33:44,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 15:33:44,720 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 15:33:44,721 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2018-04-11 15:33:44,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:33:44,765 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2018-04-11 15:33:44,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 15:33:44,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-04-11 15:33:44,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:33:44,774 INFO L225 Difference]: With dead ends: 37 [2018-04-11 15:33:44,774 INFO L226 Difference]: Without dead ends: 34 [2018-04-11 15:33:44,775 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 15:33:44,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-04-11 15:33:44,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-04-11 15:33:44,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-04-11 15:33:44,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2018-04-11 15:33:44,798 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 8 [2018-04-11 15:33:44,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:33:44,799 INFO L459 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2018-04-11 15:33:44,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 15:33:44,799 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2018-04-11 15:33:44,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-11 15:33:44,799 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:33:44,799 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:33:44,799 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12AssertViolationMEMORY_FREE]=== [2018-04-11 15:33:44,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1804432605, now seen corresponding path program 1 times [2018-04-11 15:33:44,799 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:33:44,799 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:33:44,800 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:33:44,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:33:44,800 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:33:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:33:44,812 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:33:44,820 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:33:44,821 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:33:44,821 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:33:44,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:33:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:33:44,843 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:33:44,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:33:44,848 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:33:44,862 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:44,863 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:33:44,871 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:33:44,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 15:33:44,878 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-11 15:33:44,888 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 15:33:44,888 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:24 [2018-04-11 15:33:44,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:33:44,901 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:33:44,901 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 15:33:44,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 15:33:44,902 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 15:33:44,902 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 15:33:44,902 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand 4 states. [2018-04-11 15:33:44,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:33:44,929 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2018-04-11 15:33:44,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 15:33:44,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-04-11 15:33:44,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:33:44,930 INFO L225 Difference]: With dead ends: 29 [2018-04-11 15:33:44,931 INFO L226 Difference]: Without dead ends: 29 [2018-04-11 15:33:44,931 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 15:33:44,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-04-11 15:33:44,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-04-11 15:33:44,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-04-11 15:33:44,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2018-04-11 15:33:44,934 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 8 [2018-04-11 15:33:44,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:33:44,934 INFO L459 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2018-04-11 15:33:44,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 15:33:44,934 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2018-04-11 15:33:44,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 15:33:44,935 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:33:44,935 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:33:44,935 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12AssertViolationMEMORY_FREE]=== [2018-04-11 15:33:44,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1847597954, now seen corresponding path program 1 times [2018-04-11 15:33:44,935 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:33:44,936 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:33:44,936 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:33:44,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:33:44,937 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:33:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:33:44,950 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:33:44,955 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:33:44,955 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:33:44,955 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:33:44,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:33:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:33:44,982 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:33:44,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-11 15:33:44,990 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 15:33:44,991 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:33:44,994 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:44,995 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:44,995 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-04-11 15:33:45,003 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-04-11 15:33:45,006 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:33:45,007 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-11 15:33:45,007 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,011 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,014 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,014 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2018-04-11 15:33:45,025 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-04-11 15:33:45,027 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:33:45,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-04-11 15:33:45,029 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,038 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,039 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,039 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:3 [2018-04-11 15:33:45,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:33:45,044 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:33:45,044 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 15:33:45,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 15:33:45,044 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 15:33:45,045 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:33:45,045 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 6 states. [2018-04-11 15:33:45,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:33:45,099 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-04-11 15:33:45,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:33:45,100 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-04-11 15:33:45,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:33:45,101 INFO L225 Difference]: With dead ends: 28 [2018-04-11 15:33:45,101 INFO L226 Difference]: Without dead ends: 28 [2018-04-11 15:33:45,101 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-04-11 15:33:45,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-04-11 15:33:45,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-04-11 15:33:45,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-04-11 15:33:45,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-04-11 15:33:45,104 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 14 [2018-04-11 15:33:45,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:33:45,104 INFO L459 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-04-11 15:33:45,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 15:33:45,104 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-04-11 15:33:45,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-11 15:33:45,105 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:33:45,105 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:33:45,105 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12AssertViolationMEMORY_FREE]=== [2018-04-11 15:33:45,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1440961779, now seen corresponding path program 1 times [2018-04-11 15:33:45,105 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:33:45,105 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:33:45,106 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:33:45,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:33:45,106 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:33:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:33:45,117 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:33:45,123 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:33:45,123 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:33:45,123 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:33:45,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:33:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:33:45,144 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:33:45,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:33:45,148 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,152 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,153 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 15:33:45,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-11 15:33:45,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 15:33:45,161 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,163 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,167 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,167 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:9 [2018-04-11 15:33:45,189 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-04-11 15:33:45,192 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:33:45,194 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 25 [2018-04-11 15:33:45,195 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,200 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,204 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,205 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2018-04-11 15:33:45,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-04-11 15:33:45,235 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:33:45,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-04-11 15:33:45,237 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,240 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,241 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,241 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:26, output treesize:5 [2018-04-11 15:33:45,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:33:45,246 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:33:45,246 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 15:33:45,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 15:33:45,246 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 15:33:45,246 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:33:45,246 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 6 states. [2018-04-11 15:33:45,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:33:45,308 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-04-11 15:33:45,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:33:45,309 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-04-11 15:33:45,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:33:45,309 INFO L225 Difference]: With dead ends: 27 [2018-04-11 15:33:45,309 INFO L226 Difference]: Without dead ends: 27 [2018-04-11 15:33:45,310 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-04-11 15:33:45,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-04-11 15:33:45,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-04-11 15:33:45,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-04-11 15:33:45,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-04-11 15:33:45,312 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 15 [2018-04-11 15:33:45,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:33:45,312 INFO L459 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-04-11 15:33:45,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 15:33:45,313 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-04-11 15:33:45,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 15:33:45,313 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:33:45,313 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:33:45,313 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12AssertViolationMEMORY_FREE]=== [2018-04-11 15:33:45,313 INFO L82 PathProgramCache]: Analyzing trace with hash -505711675, now seen corresponding path program 1 times [2018-04-11 15:33:45,314 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:33:45,314 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:33:45,315 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:33:45,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:33:45,315 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:33:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:33:45,325 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:33:45,327 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:33:45,327 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:33:45,328 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:33:45,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:33:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:33:45,349 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:33:45,355 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-11 15:33:45,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 15:33:45,357 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,358 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,359 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,359 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-04-11 15:33:45,366 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-04-11 15:33:45,367 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:33:45,368 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-11 15:33:45,369 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,375 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,378 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,378 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2018-04-11 15:33:45,386 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-04-11 15:33:45,392 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:33:45,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-04-11 15:33:45,394 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,401 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,402 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:33:45,402 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:3 [2018-04-11 15:33:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:33:45,411 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:33:45,411 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 15:33:45,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 15:33:45,411 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 15:33:45,412 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-04-11 15:33:45,412 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 7 states. [2018-04-11 15:33:45,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:33:45,468 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2018-04-11 15:33:45,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 15:33:45,468 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-04-11 15:33:45,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:33:45,468 INFO L225 Difference]: With dead ends: 26 [2018-04-11 15:33:45,468 INFO L226 Difference]: Without dead ends: 26 [2018-04-11 15:33:45,468 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-04-11 15:33:45,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-04-11 15:33:45,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-04-11 15:33:45,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-04-11 15:33:45,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2018-04-11 15:33:45,470 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 18 [2018-04-11 15:33:45,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:33:45,470 INFO L459 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2018-04-11 15:33:45,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 15:33:45,470 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2018-04-11 15:33:45,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-11 15:33:45,470 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:33:45,470 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:33:45,470 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12AssertViolationMEMORY_FREE]=== [2018-04-11 15:33:45,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1502807318, now seen corresponding path program 1 times [2018-04-11 15:33:45,471 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:33:45,471 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:33:45,471 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:33:45,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:33:45,471 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:33:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 15:33:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 15:33:45,500 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-11 15:33:45,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 03:33:45 BoogieIcfgContainer [2018-04-11 15:33:45,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 15:33:45,516 INFO L168 Benchmark]: Toolchain (without parser) took 1767.86 ms. Allocated memory was 403.2 MB in the beginning and 586.7 MB in the end (delta: 183.5 MB). Free memory was 337.4 MB in the beginning and 497.2 MB in the end (delta: -159.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 5.3 GB. [2018-04-11 15:33:45,516 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 403.2 MB. Free memory is still 360.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 15:33:45,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.51 ms. Allocated memory is still 403.2 MB. Free memory was 336.1 MB in the beginning and 304.4 MB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 5.3 GB. [2018-04-11 15:33:45,517 INFO L168 Benchmark]: Boogie Preprocessor took 42.35 ms. Allocated memory is still 403.2 MB. Free memory was 304.4 MB in the beginning and 301.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 15:33:45,517 INFO L168 Benchmark]: RCFGBuilder took 404.12 ms. Allocated memory was 403.2 MB in the beginning and 586.7 MB in the end (delta: 183.5 MB). Free memory was 301.8 MB in the beginning and 515.0 MB in the end (delta: -213.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. [2018-04-11 15:33:45,517 INFO L168 Benchmark]: TraceAbstraction took 1055.31 ms. Allocated memory is still 586.7 MB. Free memory was 515.0 MB in the beginning and 497.2 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 5.3 GB. [2018-04-11 15:33:45,519 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 403.2 MB. Free memory is still 360.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 263.51 ms. Allocated memory is still 403.2 MB. Free memory was 336.1 MB in the beginning and 304.4 MB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 42.35 ms. Allocated memory is still 403.2 MB. Free memory was 304.4 MB in the beginning and 301.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 404.12 ms. Allocated memory was 403.2 MB in the beginning and 586.7 MB in the end (delta: 183.5 MB). Free memory was 301.8 MB in the beginning and 515.0 MB in the end (delta: -213.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1055.31 ms. Allocated memory is still 586.7 MB. Free memory was 515.0 MB in the beginning and 497.2 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 755]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L742-L749] FCALL union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; VAL [data={39:0}] [L750] EXPR, FCALL malloc(37U) VAL [data={39:0}, malloc(37U)={40:0}] [L750] FCALL data.p0 = malloc(37U) VAL [data={39:0}, malloc(37U)={40:0}] [L751] FCALL data.str.p2 = &data VAL [data={39:0}, malloc(37U)={40:0}] [L752] EXPR, FCALL data.p0 VAL [data={39:0}, data.p0={40:0}, malloc(37U)={40:0}] [L752] void *ptr = data.p0; [L753] FCALL data.str.c[1] = sizeof data.str.p1 VAL [data={39:0}, malloc(37U)={40:0}, ptr={40:0}] [L754] EXPR, FCALL data.p0 VAL [data={39:0}, data.p0={40:0}, malloc(37U)={40:0}, ptr={40:0}] [L754] free(data.p0) VAL [data={39:0}, data.p0={40:0}, malloc(37U)={40:0}, ptr={40:0}] [L754] free(data.p0) VAL [data={39:0}, data.p0={40:0}, malloc(37U)={40:0}, ptr={40:0}] [L754] FCALL free(data.p0) VAL [data={39:0}, data.p0={40:0}, malloc(37U)={40:0}, ptr={40:0}] [L755] free(ptr) VAL [data={39:0}, malloc(37U)={40:0}, ptr={40:0}] [L755] free(ptr) VAL [data={39:0}, malloc(37U)={40:0}, ptr={40:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 15 error locations. UNSAFE Result, 1.0s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 99 SDtfs, 153 SDslu, 127 SDs, 0 SdLazy, 117 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 58 ConstructedInterpolants, 1 QuantifiedInterpolants, 3962 SizeOfPredicates, 14 NumberOfNonLiveVariables, 349 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_15-33-45-525.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_15-33-45-525.csv Received shutdown request...