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_Camel.epf -i ../../../trunk/examples/svcomp/memsafety/test-0158_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-408c70d-m [2018-04-12 11:22:43,575 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-12 11:22:43,576 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-12 11:22:43,588 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-12 11:22:43,589 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-12 11:22:43,589 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-12 11:22:43,590 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-12 11:22:43,592 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-12 11:22:43,593 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-12 11:22:43,594 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-12 11:22:43,594 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-12 11:22:43,595 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-12 11:22:43,595 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-12 11:22:43,596 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-12 11:22:43,597 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-12 11:22:43,599 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-12 11:22:43,600 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-12 11:22:43,601 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-12 11:22:43,602 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-12 11:22:43,603 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-12 11:22:43,605 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-12 11:22:43,605 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-12 11:22:43,605 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-12 11:22:43,606 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-12 11:22:43,606 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-12 11:22:43,607 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-12 11:22:43,608 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-12 11:22:43,608 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-12 11:22:43,609 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-12 11:22:43,609 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-12 11:22:43,609 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-12 11:22:43,609 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-12 11:22:43,618 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-12 11:22:43,618 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-12 11:22:43,619 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-12 11:22:43,619 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-12 11:22:43,619 INFO L133 SettingsManager]: * Use SBE=true [2018-04-12 11:22:43,619 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-12 11:22:43,619 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-12 11:22:43,619 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-12 11:22:43,619 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-12 11:22:43,619 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-12 11:22:43,619 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-12 11:22:43,619 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-12 11:22:43,620 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-12 11:22:43,620 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-12 11:22:43,620 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-12 11:22:43,620 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-12 11:22:43,620 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-12 11:22:43,620 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-12 11:22:43,620 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-12 11:22:43,620 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-12 11:22:43,620 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-12 11:22:43,620 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-12 11:22:43,621 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-12 11:22:43,621 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-12 11:22:43,650 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-12 11:22:43,658 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-12 11:22:43,660 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-12 11:22:43,661 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-12 11:22:43,661 INFO L276 PluginConnector]: CDTParser initialized [2018-04-12 11:22:43,661 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 [2018-04-12 11:22:43,955 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6ec93c76d [2018-04-12 11:22:44,096 INFO L287 CDTParser]: IsIndexed: true [2018-04-12 11:22:44,096 INFO L288 CDTParser]: Found 1 translation units. [2018-04-12 11:22:44,096 INFO L168 CDTParser]: Scanning test-0158_false-valid-free.i [2018-04-12 11:22:44,102 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-12 11:22:44,103 INFO L215 ultiparseSymbolTable]: [2018-04-12 11:22:44,103 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-12 11:22:44,103 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in test-0158_false-valid-free.i [2018-04-12 11:22:44,103 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-12 11:22:44,103 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____u_long in test-0158_false-valid-free.i [2018-04-12 11:22:44,103 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__ulong in test-0158_false-valid-free.i [2018-04-12 11:22:44,103 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 [2018-04-12 11:22:44,107 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__size_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,107 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____int64_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,107 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____intptr_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,107 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____mode_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,107 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__pthread_once_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__wchar_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__pthread_mutex_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____socklen_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____u_int in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__off_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____suseconds_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__time_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____int32_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__id_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____rlim_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__fsblkcnt_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__dev_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__uint in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__u_int in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__nlink_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____u_char in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____sig_atomic_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____pid_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,108 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____uid_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__pthread_mutexattr_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____off_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____gid_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____locale_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__fd_mask in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__fsfilcnt_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____uint64_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____timer_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__int32_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____id_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__key_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__pthread_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____ssize_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__u_int8_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i____fd_mask in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__timer_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__clockid_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,109 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest______false_valid_free_i__u_int32_t in test-0158_false-valid-free.i [2018-04-12 11:22:44,122 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6ec93c76d [2018-04-12 11:22:44,127 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-12 11:22:44,128 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-12 11:22:44,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-12 11:22:44,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-12 11:22:44,133 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-12 11:22:44,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 11:22:44" (1/1) ... [2018-04-12 11:22:44,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4120cd44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 11:22:44, skipping insertion in model container [2018-04-12 11:22:44,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 11:22:44" (1/1) ... [2018-04-12 11:22:44,146 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 11:22:44,170 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 11:22:44,291 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 11:22:44,325 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 11:22:44,334 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 159 non ball SCCs. Number of states in SCCs 159. [2018-04-12 11:22:44,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 11:22:44 WrapperNode [2018-04-12 11:22:44,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-12 11:22:44,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-12 11:22:44,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-12 11:22:44,373 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-12 11:22:44,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 11:22:44" (1/1) ... [2018-04-12 11:22:44,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 11:22:44" (1/1) ... [2018-04-12 11:22:44,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 11:22:44" (1/1) ... [2018-04-12 11:22:44,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 11:22:44" (1/1) ... [2018-04-12 11:22:44,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 11:22:44" (1/1) ... [2018-04-12 11:22:44,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 11:22:44" (1/1) ... [2018-04-12 11:22:44,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 11:22:44" (1/1) ... [2018-04-12 11:22:44,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-12 11:22:44,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-12 11:22:44,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-12 11:22:44,405 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-12 11:22:44,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 11:22:44" (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 [2018-04-12 11:22:44,485 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-12 11:22:44,485 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-12 11:22:44,485 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-12 11:22:44,485 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-12 11:22:44,485 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-12 11:22:44,485 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-12 11:22:44,486 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-12 11:22:44,487 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-12 11:22:44,487 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-12 11:22:44,487 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-12 11:22:44,487 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-12 11:22:44,487 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-12 11:22:44,487 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-12 11:22:44,487 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-12 11:22:44,488 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-12 11:22:44,488 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-12 11:22:44,488 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-12 11:22:44,488 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-12 11:22:44,488 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-12 11:22:44,488 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-12 11:22:44,488 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-12 11:22:44,488 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-12 11:22:44,488 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-12 11:22:44,489 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-12 11:22:44,489 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-12 11:22:44,489 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-12 11:22:44,489 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-12 11:22:44,489 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-12 11:22:44,489 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-12 11:22:44,489 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-12 11:22:44,489 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-12 11:22:44,489 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-12 11:22:44,490 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-12 11:22:44,490 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-12 11:22:44,490 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-12 11:22:44,490 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-12 11:22:44,490 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-12 11:22:44,490 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-12 11:22:44,490 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-12 11:22:44,490 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-12 11:22:44,490 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-12 11:22:44,490 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-12 11:22:44,491 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-12 11:22:44,491 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-12 11:22:44,491 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-12 11:22:44,491 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-12 11:22:44,491 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-12 11:22:44,491 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-12 11:22:44,491 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-12 11:22:44,491 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-12 11:22:44,491 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-12 11:22:44,492 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-12 11:22:44,492 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-12 11:22:44,492 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-12 11:22:44,492 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-12 11:22:44,492 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-12 11:22:44,492 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-12 11:22:44,492 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-12 11:22:44,492 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-12 11:22:44,492 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-12 11:22:44,492 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-12 11:22:44,493 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-12 11:22:44,493 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-12 11:22:44,493 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-12 11:22:44,493 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-12 11:22:44,493 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-12 11:22:44,493 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-12 11:22:44,493 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-12 11:22:44,493 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-12 11:22:44,493 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-12 11:22:44,493 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-12 11:22:44,494 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-12 11:22:44,494 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-12 11:22:44,494 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-12 11:22:44,494 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-12 11:22:44,494 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-12 11:22:44,494 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-12 11:22:44,494 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-12 11:22:44,494 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-12 11:22:44,494 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-12 11:22:44,494 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-12 11:22:44,495 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-12 11:22:44,495 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-12 11:22:44,495 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-12 11:22:44,495 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-12 11:22:44,495 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-12 11:22:44,495 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-12 11:22:44,495 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-12 11:22:44,495 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-12 11:22:44,495 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-12 11:22:44,495 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-12 11:22:44,496 INFO L128 BoogieDeclarations]: Found specification of procedure memcpy [2018-04-12 11:22:44,496 INFO L128 BoogieDeclarations]: Found specification of procedure memmove [2018-04-12 11:22:44,496 INFO L128 BoogieDeclarations]: Found specification of procedure memccpy [2018-04-12 11:22:44,496 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-04-12 11:22:44,496 INFO L128 BoogieDeclarations]: Found specification of procedure memcmp [2018-04-12 11:22:44,496 INFO L128 BoogieDeclarations]: Found specification of procedure memchr [2018-04-12 11:22:44,496 INFO L128 BoogieDeclarations]: Found specification of procedure strcpy [2018-04-12 11:22:44,496 INFO L128 BoogieDeclarations]: Found specification of procedure strncpy [2018-04-12 11:22:44,496 INFO L128 BoogieDeclarations]: Found specification of procedure strcat [2018-04-12 11:22:44,496 INFO L128 BoogieDeclarations]: Found specification of procedure strncat [2018-04-12 11:22:44,496 INFO L128 BoogieDeclarations]: Found specification of procedure strcmp [2018-04-12 11:22:44,497 INFO L128 BoogieDeclarations]: Found specification of procedure strncmp [2018-04-12 11:22:44,497 INFO L128 BoogieDeclarations]: Found specification of procedure strcoll [2018-04-12 11:22:44,497 INFO L128 BoogieDeclarations]: Found specification of procedure strxfrm [2018-04-12 11:22:44,497 INFO L128 BoogieDeclarations]: Found specification of procedure strcoll_l [2018-04-12 11:22:44,497 INFO L128 BoogieDeclarations]: Found specification of procedure strxfrm_l [2018-04-12 11:22:44,497 INFO L128 BoogieDeclarations]: Found specification of procedure strdup [2018-04-12 11:22:44,497 INFO L128 BoogieDeclarations]: Found specification of procedure strndup [2018-04-12 11:22:44,497 INFO L128 BoogieDeclarations]: Found specification of procedure strchr [2018-04-12 11:22:44,497 INFO L128 BoogieDeclarations]: Found specification of procedure strrchr [2018-04-12 11:22:44,497 INFO L128 BoogieDeclarations]: Found specification of procedure strcspn [2018-04-12 11:22:44,498 INFO L128 BoogieDeclarations]: Found specification of procedure strspn [2018-04-12 11:22:44,498 INFO L128 BoogieDeclarations]: Found specification of procedure strpbrk [2018-04-12 11:22:44,498 INFO L128 BoogieDeclarations]: Found specification of procedure strstr [2018-04-12 11:22:44,498 INFO L128 BoogieDeclarations]: Found specification of procedure strtok [2018-04-12 11:22:44,498 INFO L128 BoogieDeclarations]: Found specification of procedure __strtok_r [2018-04-12 11:22:44,498 INFO L128 BoogieDeclarations]: Found specification of procedure strtok_r [2018-04-12 11:22:44,498 INFO L128 BoogieDeclarations]: Found specification of procedure strlen [2018-04-12 11:22:44,498 INFO L128 BoogieDeclarations]: Found specification of procedure strnlen [2018-04-12 11:22:44,498 INFO L128 BoogieDeclarations]: Found specification of procedure strerror [2018-04-12 11:22:44,498 INFO L128 BoogieDeclarations]: Found specification of procedure strerror_r [2018-04-12 11:22:44,499 INFO L128 BoogieDeclarations]: Found specification of procedure strerror_l [2018-04-12 11:22:44,499 INFO L128 BoogieDeclarations]: Found specification of procedure __bzero [2018-04-12 11:22:44,499 INFO L128 BoogieDeclarations]: Found specification of procedure bcopy [2018-04-12 11:22:44,499 INFO L128 BoogieDeclarations]: Found specification of procedure bzero [2018-04-12 11:22:44,499 INFO L128 BoogieDeclarations]: Found specification of procedure bcmp [2018-04-12 11:22:44,499 INFO L128 BoogieDeclarations]: Found specification of procedure index [2018-04-12 11:22:44,499 INFO L128 BoogieDeclarations]: Found specification of procedure rindex [2018-04-12 11:22:44,499 INFO L128 BoogieDeclarations]: Found specification of procedure ffs [2018-04-12 11:22:44,499 INFO L128 BoogieDeclarations]: Found specification of procedure strcasecmp [2018-04-12 11:22:44,499 INFO L128 BoogieDeclarations]: Found specification of procedure strncasecmp [2018-04-12 11:22:44,500 INFO L128 BoogieDeclarations]: Found specification of procedure strsep [2018-04-12 11:22:44,500 INFO L128 BoogieDeclarations]: Found specification of procedure strsignal [2018-04-12 11:22:44,500 INFO L128 BoogieDeclarations]: Found specification of procedure __stpcpy [2018-04-12 11:22:44,500 INFO L128 BoogieDeclarations]: Found specification of procedure stpcpy [2018-04-12 11:22:44,500 INFO L128 BoogieDeclarations]: Found specification of procedure __stpncpy [2018-04-12 11:22:44,500 INFO L128 BoogieDeclarations]: Found specification of procedure stpncpy [2018-04-12 11:22:44,500 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-12 11:22:44,500 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-12 11:22:44,500 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-12 11:22:44,500 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-12 11:22:44,500 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-12 11:22:44,501 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-12 11:22:44,501 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-12 11:22:44,501 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-12 11:22:44,501 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-12 11:22:44,501 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-12 11:22:44,788 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-12 11:22:44,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 11:22:44 BoogieIcfgContainer [2018-04-12 11:22:44,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-12 11:22:44,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-12 11:22:44,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-12 11:22:44,792 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-12 11:22:44,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.04 11:22:44" (1/3) ... [2018-04-12 11:22:44,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c50d1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 11:22:44, skipping insertion in model container [2018-04-12 11:22:44,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 11:22:44" (2/3) ... [2018-04-12 11:22:44,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c50d1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 11:22:44, skipping insertion in model container [2018-04-12 11:22:44,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 11:22:44" (3/3) ... [2018-04-12 11:22:44,794 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-free.i [2018-04-12 11:22:44,800 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-12 11:22:44,805 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-04-12 11:22:44,835 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-12 11:22:44,836 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-12 11:22:44,836 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-12 11:22:44,836 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-12 11:22:44,836 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-12 11:22:44,836 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-12 11:22:44,836 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-12 11:22:44,837 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-12 11:22:44,837 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-12 11:22:44,837 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-12 11:22:44,845 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-04-12 11:22:44,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-12 11:22:44,851 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 11:22:44,852 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 11:22:44,852 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]=== [2018-04-12 11:22:44,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1804432604, now seen corresponding path program 1 times [2018-04-12 11:22:44,856 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 11:22:44,856 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 11:22:44,889 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 11:22:44,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 11:22:44,889 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 11:22:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 11:22:44,924 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 11:22:45,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 11:22:45,014 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 11:22:45,014 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-12 11:22:45,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-12 11:22:45,026 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-12 11:22:45,027 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-12 11:22:45,028 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2018-04-12 11:22:45,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 11:22:45,070 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2018-04-12 11:22:45,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-12 11:22:45,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-04-12 11:22:45,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 11:22:45,077 INFO L225 Difference]: With dead ends: 37 [2018-04-12 11:22:45,078 INFO L226 Difference]: Without dead ends: 34 [2018-04-12 11:22:45,079 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-12 11:22:45,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-04-12 11:22:45,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-04-12 11:22:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-04-12 11:22:45,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2018-04-12 11:22:45,102 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 8 [2018-04-12 11:22:45,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 11:22:45,102 INFO L459 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2018-04-12 11:22:45,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-12 11:22:45,103 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2018-04-12 11:22:45,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-12 11:22:45,103 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 11:22:45,103 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 11:22:45,103 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]=== [2018-04-12 11:22:45,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1804432605, now seen corresponding path program 1 times [2018-04-12 11:22:45,104 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 11:22:45,104 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 11:22:45,105 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 11:22:45,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 11:22:45,105 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 11:22:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 11:22:45,121 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 11:22:45,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 11:22:45,161 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 11:22:45,162 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-12 11:22:45,163 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-12 11:22:45,163 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-12 11:22:45,163 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-12 11:22:45,163 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand 4 states. [2018-04-12 11:22:45,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 11:22:45,208 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2018-04-12 11:22:45,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-12 11:22:45,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-04-12 11:22:45,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 11:22:45,209 INFO L225 Difference]: With dead ends: 29 [2018-04-12 11:22:45,209 INFO L226 Difference]: Without dead ends: 29 [2018-04-12 11:22:45,210 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-12 11:22:45,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-04-12 11:22:45,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-04-12 11:22:45,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-04-12 11:22:45,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2018-04-12 11:22:45,213 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 8 [2018-04-12 11:22:45,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 11:22:45,213 INFO L459 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2018-04-12 11:22:45,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-12 11:22:45,213 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2018-04-12 11:22:45,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-12 11:22:45,214 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 11:22:45,214 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 11:22:45,214 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]=== [2018-04-12 11:22:45,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1847597954, now seen corresponding path program 1 times [2018-04-12 11:22:45,214 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 11:22:45,214 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 11:22:45,215 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 11:22:45,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 11:22:45,215 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 11:22:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 11:22:45,227 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 11:22:45,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 11:22:45,260 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 11:22:45,260 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-12 11:22:45,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-12 11:22:45,261 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-12 11:22:45,261 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-12 11:22:45,261 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 5 states. [2018-04-12 11:22:45,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 11:22:45,294 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-04-12 11:22:45,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-12 11:22:45,294 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-12 11:22:45,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 11:22:45,295 INFO L225 Difference]: With dead ends: 28 [2018-04-12 11:22:45,295 INFO L226 Difference]: Without dead ends: 28 [2018-04-12 11:22:45,295 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-12 11:22:45,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-04-12 11:22:45,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-04-12 11:22:45,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-04-12 11:22:45,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-04-12 11:22:45,298 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 14 [2018-04-12 11:22:45,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 11:22:45,298 INFO L459 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-04-12 11:22:45,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-12 11:22:45,298 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-04-12 11:22:45,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-12 11:22:45,299 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 11:22:45,299 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 11:22:45,299 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]=== [2018-04-12 11:22:45,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1440961779, now seen corresponding path program 1 times [2018-04-12 11:22:45,299 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 11:22:45,299 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 11:22:45,300 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 11:22:45,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 11:22:45,300 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 11:22:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 11:22:45,310 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 11:22:45,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 11:22:45,341 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 11:22:45,341 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-12 11:22:45,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-12 11:22:45,341 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-12 11:22:45,341 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-12 11:22:45,342 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 5 states. [2018-04-12 11:22:45,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 11:22:45,393 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-04-12 11:22:45,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-12 11:22:45,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-04-12 11:22:45,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 11:22:45,394 INFO L225 Difference]: With dead ends: 27 [2018-04-12 11:22:45,394 INFO L226 Difference]: Without dead ends: 27 [2018-04-12 11:22:45,394 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-12 11:22:45,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-04-12 11:22:45,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-04-12 11:22:45,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-04-12 11:22:45,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-04-12 11:22:45,396 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 15 [2018-04-12 11:22:45,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 11:22:45,397 INFO L459 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-04-12 11:22:45,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-12 11:22:45,397 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-04-12 11:22:45,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-12 11:22:45,397 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 11:22:45,397 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 11:22:45,397 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]=== [2018-04-12 11:22:45,398 INFO L82 PathProgramCache]: Analyzing trace with hash -505711675, now seen corresponding path program 1 times [2018-04-12 11:22:45,398 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 11:22:45,398 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 11:22:45,398 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 11:22:45,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 11:22:45,399 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 11:22:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 11:22:45,408 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 11:22:45,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 11:22:45,443 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 11:22:45,443 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-12 11:22:45,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 11:22:45,443 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 11:22:45,443 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-12 11:22:45,444 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 6 states. [2018-04-12 11:22:45,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 11:22:45,497 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2018-04-12 11:22:45,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-12 11:22:45,497 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-04-12 11:22:45,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 11:22:45,497 INFO L225 Difference]: With dead ends: 26 [2018-04-12 11:22:45,498 INFO L226 Difference]: Without dead ends: 26 [2018-04-12 11:22:45,498 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-04-12 11:22:45,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-04-12 11:22:45,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-04-12 11:22:45,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-04-12 11:22:45,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2018-04-12 11:22:45,500 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 18 [2018-04-12 11:22:45,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 11:22:45,501 INFO L459 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2018-04-12 11:22:45,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 11:22:45,501 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2018-04-12 11:22:45,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-12 11:22:45,501 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 11:22:45,501 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 11:22:45,501 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]=== [2018-04-12 11:22:45,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1502807318, now seen corresponding path program 1 times [2018-04-12 11:22:45,502 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 11:22:45,502 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 11:22:45,502 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 11:22:45,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 11:22:45,504 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 11:22:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-12 11:22:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-12 11:22:45,542 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-12 11:22:45,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.04 11:22:45 BoogieIcfgContainer [2018-04-12 11:22:45,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-12 11:22:45,558 INFO L168 Benchmark]: Toolchain (without parser) took 1431.02 ms. Allocated memory was 403.2 MB in the beginning and 608.2 MB in the end (delta: 205.0 MB). Free memory was 340.4 MB in the beginning and 445.9 MB in the end (delta: -105.4 MB). Peak memory consumption was 99.6 MB. Max. memory is 5.3 GB. [2018-04-12 11:22:45,559 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 403.2 MB. Free memory is still 364.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-12 11:22:45,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.38 ms. Allocated memory is still 403.2 MB. Free memory was 339.1 MB in the beginning and 307.4 MB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 5.3 GB. [2018-04-12 11:22:45,560 INFO L168 Benchmark]: Boogie Preprocessor took 31.41 ms. Allocated memory is still 403.2 MB. Free memory was 307.4 MB in the beginning and 304.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-12 11:22:45,560 INFO L168 Benchmark]: RCFGBuilder took 384.16 ms. Allocated memory was 403.2 MB in the beginning and 608.2 MB in the end (delta: 205.0 MB). Free memory was 304.7 MB in the beginning and 536.9 MB in the end (delta: -232.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. [2018-04-12 11:22:45,561 INFO L168 Benchmark]: TraceAbstraction took 768.55 ms. Allocated memory is still 608.2 MB. Free memory was 535.1 MB in the beginning and 445.9 MB in the end (delta: 89.3 MB). Peak memory consumption was 89.3 MB. Max. memory is 5.3 GB. [2018-04-12 11:22:45,562 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 403.2 MB. Free memory is still 364.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 244.38 ms. Allocated memory is still 403.2 MB. Free memory was 339.1 MB in the beginning and 307.4 MB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.41 ms. Allocated memory is still 403.2 MB. Free memory was 307.4 MB in the beginning and 304.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 384.16 ms. Allocated memory was 403.2 MB in the beginning and 608.2 MB in the end (delta: 205.0 MB). Free memory was 304.7 MB in the beginning and 536.9 MB in the end (delta: -232.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 768.55 ms. Allocated memory is still 608.2 MB. Free memory was 535.1 MB in the beginning and 445.9 MB in the end (delta: 89.3 MB). Peak memory consumption was 89.3 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, 0.7s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 96 SDtfs, 117 SDslu, 116 SDs, 0 SdLazy, 116 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 2635 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-12_11-22-45-570.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_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-12_11-22-45-570.csv Received shutdown request...