/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:28:40,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:28:40,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:28:40,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:28:40,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:28:40,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:28:40,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:28:40,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:28:40,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:28:40,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:28:40,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:28:40,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:28:40,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:28:40,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:28:40,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:28:40,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:28:40,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:28:40,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:28:40,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:28:40,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:28:40,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:28:40,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:28:40,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:28:40,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:28:40,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 18:28:40,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 18:28:40,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 18:28:40,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 18:28:40,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 18:28:40,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 18:28:40,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 18:28:40,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 18:28:40,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 18:28:40,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 18:28:40,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 18:28:40,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 18:28:40,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 18:28:40,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 18:28:40,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:28:40,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:28:40,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:28:40,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:28:40,897 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:28:40,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:28:40,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:28:40,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:28:40,900 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:28:40,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:28:40,900 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:28:40,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:28:40,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:28:40,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:28:40,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:28:40,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:28:40,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:28:40,902 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:28:40,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:28:40,902 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:28:40,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:28:40,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:28:40,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:28:40,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:28:40,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:28:40,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:28:40,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:28:40,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:28:40,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:28:40,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:28:40,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:28:40,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:28:40,905 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:28:40,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:28:41,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:28:41,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:28:41,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:28:41,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:28:41,319 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:28:41,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-10-23 18:28:41,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b921024d9/ab55f3d8a0e249ec87262ed0774537dd/FLAG7b3a8cf5f [2020-10-23 18:28:42,201 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:28:42,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-10-23 18:28:42,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b921024d9/ab55f3d8a0e249ec87262ed0774537dd/FLAG7b3a8cf5f [2020-10-23 18:28:42,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b921024d9/ab55f3d8a0e249ec87262ed0774537dd [2020-10-23 18:28:42,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:28:42,426 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:28:42,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:28:42,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:28:42,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:28:42,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:28:42" (1/1) ... [2020-10-23 18:28:42,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b0d7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:42, skipping insertion in model container [2020-10-23 18:28:42,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:28:42" (1/1) ... [2020-10-23 18:28:42,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:28:42,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:28:43,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:28:43,047 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:28:43,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:28:43,283 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:28:43,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:43 WrapperNode [2020-10-23 18:28:43,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:28:43,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:28:43,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:28:43,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:28:43,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:43" (1/1) ... [2020-10-23 18:28:43,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:43" (1/1) ... [2020-10-23 18:28:43,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:43" (1/1) ... [2020-10-23 18:28:43,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:43" (1/1) ... [2020-10-23 18:28:43,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:43" (1/1) ... [2020-10-23 18:28:43,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:43" (1/1) ... [2020-10-23 18:28:43,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:43" (1/1) ... [2020-10-23 18:28:43,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:28:43,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:28:43,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:28:43,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:28:43,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:28:43,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:28:43,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:28:43,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-23 18:28:43,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-23 18:28:43,543 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:28:43,544 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-23 18:28:43,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-23 18:28:43,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-10-23 18:28:43,544 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-23 18:28:43,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-23 18:28:43,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-23 18:28:43,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-23 18:28:43,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-23 18:28:43,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-23 18:28:43,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-10-23 18:28:43,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-10-23 18:28:43,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-23 18:28:43,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-10-23 18:28:43,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-10-23 18:28:43,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-10-23 18:28:43,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-23 18:28:43,548 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-23 18:28:43,548 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-23 18:28:43,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-23 18:28:43,548 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-23 18:28:43,549 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:28:43,549 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-23 18:28:43,549 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-23 18:28:43,549 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-23 18:28:43,549 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-23 18:28:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-23 18:28:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-23 18:28:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-23 18:28:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-23 18:28:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-23 18:28:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-23 18:28:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-23 18:28:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-23 18:28:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-23 18:28:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-23 18:28:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-23 18:28:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-23 18:28:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-23 18:28:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-23 18:28:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-23 18:28:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-23 18:28:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-23 18:28:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-23 18:28:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-23 18:28:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-23 18:28:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-23 18:28:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-23 18:28:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-23 18:28:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-23 18:28:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-23 18:28:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-23 18:28:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-23 18:28:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-23 18:28:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-23 18:28:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-23 18:28:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-23 18:28:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-23 18:28:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-23 18:28:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-23 18:28:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-23 18:28:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-23 18:28:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-23 18:28:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-23 18:28:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-23 18:28:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-23 18:28:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-23 18:28:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-23 18:28:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-23 18:28:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-23 18:28:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-23 18:28:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-23 18:28:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-23 18:28:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-23 18:28:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 18:28:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 18:28:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-23 18:28:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 18:28:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-23 18:28:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-23 18:28:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-23 18:28:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-23 18:28:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:28:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-23 18:28:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-23 18:28:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:28:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-23 18:28:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-23 18:28:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-23 18:28:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-23 18:28:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-23 18:28:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-23 18:28:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-23 18:28:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-23 18:28:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-23 18:28:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-23 18:28:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-23 18:28:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-23 18:28:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-23 18:28:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-23 18:28:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-23 18:28:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-23 18:28:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-23 18:28:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-23 18:28:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-23 18:28:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-23 18:28:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-23 18:28:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-23 18:28:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-23 18:28:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-23 18:28:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-23 18:28:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-23 18:28:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-23 18:28:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-23 18:28:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-23 18:28:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-23 18:28:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-23 18:28:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-23 18:28:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-23 18:28:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-23 18:28:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-23 18:28:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-23 18:28:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-23 18:28:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-23 18:28:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:28:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-23 18:28:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-23 18:28:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:28:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:28:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-23 18:28:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:28:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-23 18:28:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 18:28:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-10-23 18:28:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-23 18:28:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 18:28:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-23 18:28:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-23 18:28:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-23 18:28:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 18:28:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-23 18:28:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-23 18:28:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-10-23 18:28:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-10-23 18:28:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-23 18:28:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-10-23 18:28:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-10-23 18:28:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-10-23 18:28:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:28:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-23 18:28:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-23 18:28:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-23 18:28:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-23 18:28:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-23 18:28:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:28:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:28:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:28:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-23 18:28:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:28:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:28:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:28:44,425 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:28:44,426 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-23 18:28:44,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:28:44 BoogieIcfgContainer [2020-10-23 18:28:44,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:28:44,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:28:44,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:28:44,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:28:44,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:28:42" (1/3) ... [2020-10-23 18:28:44,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59026c44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:28:44, skipping insertion in model container [2020-10-23 18:28:44,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:43" (2/3) ... [2020-10-23 18:28:44,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59026c44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:28:44, skipping insertion in model container [2020-10-23 18:28:44,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:28:44" (3/3) ... [2020-10-23 18:28:44,442 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-10-23 18:28:44,456 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:28:44,464 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:28:44,480 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:28:44,521 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:28:44,521 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:28:44,521 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:28:44,522 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:28:44,522 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:28:44,522 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:28:44,522 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:28:44,522 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:28:44,545 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-10-23 18:28:44,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-23 18:28:44,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:28:44,555 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:28:44,555 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:28:44,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:28:44,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1326439761, now seen corresponding path program 1 times [2020-10-23 18:28:44,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:28:44,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167128063] [2020-10-23 18:28:44,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:28:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:28:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:28:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:28:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:28:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-23 18:28:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,998 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-23 18:28:44,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167128063] [2020-10-23 18:28:45,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:28:45,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:28:45,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827924490] [2020-10-23 18:28:45,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:28:45,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:28:45,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:28:45,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:28:45,024 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 4 states. [2020-10-23 18:28:45,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:28:45,436 INFO L93 Difference]: Finished difference Result 222 states and 280 transitions. [2020-10-23 18:28:45,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:28:45,438 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-23 18:28:45,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:28:45,451 INFO L225 Difference]: With dead ends: 222 [2020-10-23 18:28:45,452 INFO L226 Difference]: Without dead ends: 111 [2020-10-23 18:28:45,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:28:45,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-23 18:28:45,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 98. [2020-10-23 18:28:45,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-23 18:28:45,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2020-10-23 18:28:45,522 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 44 [2020-10-23 18:28:45,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:28:45,522 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2020-10-23 18:28:45,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:28:45,523 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2020-10-23 18:28:45,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-23 18:28:45,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:28:45,526 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:28:45,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:28:45,526 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:28:45,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:28:45,527 INFO L82 PathProgramCache]: Analyzing trace with hash -547812891, now seen corresponding path program 1 times [2020-10-23 18:28:45,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:28:45,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31199776] [2020-10-23 18:28:45,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:28:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:45,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:28:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:45,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:28:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:45,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:28:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:45,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:45,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:28:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:45,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:45,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-23 18:28:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:45,811 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-23 18:28:45,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31199776] [2020-10-23 18:28:45,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:28:45,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:28:45,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623004743] [2020-10-23 18:28:45,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 18:28:45,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:28:45,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 18:28:45,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:28:45,815 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 6 states. [2020-10-23 18:28:46,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:28:46,452 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2020-10-23 18:28:46,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:28:46,453 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-10-23 18:28:46,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:28:46,456 INFO L225 Difference]: With dead ends: 119 [2020-10-23 18:28:46,456 INFO L226 Difference]: Without dead ends: 115 [2020-10-23 18:28:46,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:28:46,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-23 18:28:46,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 102. [2020-10-23 18:28:46,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-23 18:28:46,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2020-10-23 18:28:46,480 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 44 [2020-10-23 18:28:46,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:28:46,481 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2020-10-23 18:28:46,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 18:28:46,481 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2020-10-23 18:28:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-23 18:28:46,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:28:46,483 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:28:46,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:28:46,484 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:28:46,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:28:46,484 INFO L82 PathProgramCache]: Analyzing trace with hash 817475022, now seen corresponding path program 1 times [2020-10-23 18:28:46,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:28:46,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112599153] [2020-10-23 18:28:46,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:28:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:28:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:28:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:28:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:28:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-23 18:28:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,805 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-23 18:28:46,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112599153] [2020-10-23 18:28:46,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:28:46,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:28:46,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212984593] [2020-10-23 18:28:46,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:28:46,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:28:46,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:28:46,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:28:46,812 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand 7 states. [2020-10-23 18:28:48,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:28:48,414 INFO L93 Difference]: Finished difference Result 289 states and 352 transitions. [2020-10-23 18:28:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 18:28:48,415 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-10-23 18:28:48,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:28:48,419 INFO L225 Difference]: With dead ends: 289 [2020-10-23 18:28:48,420 INFO L226 Difference]: Without dead ends: 201 [2020-10-23 18:28:48,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:28:48,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-10-23 18:28:48,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 163. [2020-10-23 18:28:48,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-23 18:28:48,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 196 transitions. [2020-10-23 18:28:48,458 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 196 transitions. Word has length 44 [2020-10-23 18:28:48,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:28:48,458 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 196 transitions. [2020-10-23 18:28:48,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:28:48,458 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 196 transitions. [2020-10-23 18:28:48,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-23 18:28:48,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:28:48,463 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:28:48,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 18:28:48,463 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:28:48,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:28:48,464 INFO L82 PathProgramCache]: Analyzing trace with hash -847406493, now seen corresponding path program 1 times [2020-10-23 18:28:48,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:28:48,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445315924] [2020-10-23 18:28:48,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:28:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:28:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:28:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:28:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:28:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-23 18:28:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:28:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 18:28:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:28:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-23 18:28:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,807 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-10-23 18:28:48,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445315924] [2020-10-23 18:28:48,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89510469] [2020-10-23 18:28:48,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:28:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-23 18:28:49,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:28:49,159 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-23 18:28:49,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:28:49,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2020-10-23 18:28:49,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222532552] [2020-10-23 18:28:49,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:28:49,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:28:49,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:28:49,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:28:49,162 INFO L87 Difference]: Start difference. First operand 163 states and 196 transitions. Second operand 4 states. [2020-10-23 18:28:49,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:28:49,287 INFO L93 Difference]: Finished difference Result 295 states and 354 transitions. [2020-10-23 18:28:49,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 18:28:49,288 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2020-10-23 18:28:49,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:28:49,296 INFO L225 Difference]: With dead ends: 295 [2020-10-23 18:28:49,296 INFO L226 Difference]: Without dead ends: 169 [2020-10-23 18:28:49,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:28:49,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-23 18:28:49,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2020-10-23 18:28:49,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-23 18:28:49,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 202 transitions. [2020-10-23 18:28:49,352 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 202 transitions. Word has length 92 [2020-10-23 18:28:49,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:28:49,352 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 202 transitions. [2020-10-23 18:28:49,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:28:49,353 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 202 transitions. [2020-10-23 18:28:49,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-23 18:28:49,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:28:49,357 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:28:49,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:28:49,572 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:28:49,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:28:49,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1930944587, now seen corresponding path program 1 times [2020-10-23 18:28:49,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:28:49,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288706568] [2020-10-23 18:28:49,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:28:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:28:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:28:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:28:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:28:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-23 18:28:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:28:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 18:28:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:28:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-23 18:28:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:50,023 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 1 proven. 34 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-23 18:28:50,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288706568] [2020-10-23 18:28:50,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146277238] [2020-10-23 18:28:50,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:28:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:50,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 53 conjunts are in the unsatisfiable core [2020-10-23 18:28:50,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:28:50,335 INFO L384 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 7 treesize of output 3 [2020-10-23 18:28:50,337 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:28:50,340 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:28:50,340 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:28:50,341 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2020-10-23 18:28:50,470 INFO L384 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 7 treesize of output 3 [2020-10-23 18:28:50,471 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:28:50,481 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:28:50,485 INFO L384 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 7 treesize of output 3 [2020-10-23 18:28:50,487 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-23 18:28:50,494 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:28:50,494 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:28:50,495 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:10 [2020-10-23 18:28:50,652 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:28:50,682 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-23 18:28:50,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:28:50,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 24 [2020-10-23 18:28:50,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358101641] [2020-10-23 18:28:50,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-23 18:28:50,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:28:50,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-23 18:28:50,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2020-10-23 18:28:50,716 INFO L87 Difference]: Start difference. First operand 169 states and 202 transitions. Second operand 24 states. [2020-10-23 18:28:54,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:28:54,386 INFO L93 Difference]: Finished difference Result 412 states and 503 transitions. [2020-10-23 18:28:54,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 18:28:54,387 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 92 [2020-10-23 18:28:54,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:28:54,390 INFO L225 Difference]: With dead ends: 412 [2020-10-23 18:28:54,390 INFO L226 Difference]: Without dead ends: 218 [2020-10-23 18:28:54,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=418, Invalid=1652, Unknown=0, NotChecked=0, Total=2070 [2020-10-23 18:28:54,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-23 18:28:54,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 186. [2020-10-23 18:28:54,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-23 18:28:54,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 219 transitions. [2020-10-23 18:28:54,433 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 219 transitions. Word has length 92 [2020-10-23 18:28:54,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:28:54,434 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 219 transitions. [2020-10-23 18:28:54,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-23 18:28:54,434 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 219 transitions. [2020-10-23 18:28:54,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-23 18:28:54,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:28:54,436 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:28:54,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:28:54,648 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:28:54,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:28:54,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1290820386, now seen corresponding path program 1 times [2020-10-23 18:28:54,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:28:54,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117410068] [2020-10-23 18:28:54,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:28:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:28:54,698 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:28:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:28:54,738 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:28:54,788 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 18:28:54,788 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 18:28:54,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 18:28:54,826 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 58 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-10-23 18:28:54,828 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 59 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-10-23 18:28:54,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:28:54 BoogieIcfgContainer [2020-10-23 18:28:54,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:28:54,869 INFO L168 Benchmark]: Toolchain (without parser) took 12447.48 ms. Allocated memory was 151.0 MB in the beginning and 275.8 MB in the end (delta: 124.8 MB). Free memory was 125.5 MB in the beginning and 168.1 MB in the end (delta: -42.6 MB). Peak memory consumption was 83.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:28:54,870 INFO L168 Benchmark]: CDTParser took 1.26 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 123.9 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:28:54,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 857.45 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 133.0 MB in the end (delta: -8.1 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:28:54,872 INFO L168 Benchmark]: Boogie Preprocessor took 159.17 ms. Allocated memory is still 151.0 MB. Free memory was 133.0 MB in the beginning and 129.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:28:54,872 INFO L168 Benchmark]: RCFGBuilder took 983.58 ms. Allocated memory is still 151.0 MB. Free memory was 129.3 MB in the beginning and 71.6 MB in the end (delta: 57.7 MB). Peak memory consumption was 57.7 MB. Max. memory is 8.0 GB. [2020-10-23 18:28:54,873 INFO L168 Benchmark]: TraceAbstraction took 10433.89 ms. Allocated memory was 151.0 MB in the beginning and 275.8 MB in the end (delta: 124.8 MB). Free memory was 71.1 MB in the beginning and 168.1 MB in the end (delta: -97.0 MB). Peak memory consumption was 27.7 MB. Max. memory is 8.0 GB. [2020-10-23 18:28:54,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 123.9 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 857.45 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 133.0 MB in the end (delta: -8.1 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 159.17 ms. Allocated memory is still 151.0 MB. Free memory was 133.0 MB in the beginning and 129.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 983.58 ms. Allocated memory is still 151.0 MB. Free memory was 129.3 MB in the beginning and 71.6 MB in the end (delta: 57.7 MB). Peak memory consumption was 57.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10433.89 ms. Allocated memory was 151.0 MB in the beginning and 275.8 MB in the end (delta: 124.8 MB). Free memory was 71.1 MB in the beginning and 168.1 MB in the end (delta: -97.0 MB). Peak memory consumption was 27.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 58 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 59 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 562]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L665] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; VAL [\old(mutexes)=null, \old(mutexes)=null, mutexes={3:0}] [L692] CALL foo() VAL [mutexes={3:0}] [L681] FCALL ldv_initialize() VAL [mutexes={3:0}] [L682] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [\old(size)=8, mutexes={3:0}] [L576] void *ptr = malloc(size); VAL [\old(size)=8, malloc(size)={-1:0}, mutexes={3:0}, ptr={-1:0}, size=8] [L577] CALL assume_abort_if_not(ptr!=0) VAL [\old(cond)=1, mutexes={3:0}] [L565] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, mutexes={3:0}] [L577] RET assume_abort_if_not(ptr!=0) VAL [\old(size)=8, malloc(size)={-1:0}, mutexes={3:0}, ptr={-1:0}, size=8] [L578] return ptr; VAL [\old(size)=8, \result={-1:0}, malloc(size)={-1:0}, mutexes={3:0}, ptr={-1:0}, size=8] [L682] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [ldv_successful_malloc(sizeof(struct mutex))={-1:0}, mutexes={3:0}] [L682] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L683] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [\old(size)=8, mutexes={3:0}] [L576] void *ptr = malloc(size); VAL [\old(size)=8, malloc(size)={-2:0}, mutexes={3:0}, ptr={-2:0}, size=8] [L577] CALL assume_abort_if_not(ptr!=0) VAL [\old(cond)=1, mutexes={3:0}] [L565] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, mutexes={3:0}] [L577] RET assume_abort_if_not(ptr!=0) VAL [\old(size)=8, malloc(size)={-2:0}, mutexes={3:0}, ptr={-2:0}, size=8] [L578] return ptr; VAL [\old(size)=8, \result={-2:0}, malloc(size)={-2:0}, mutexes={3:0}, ptr={-2:0}, size=8] [L683] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [ldv_successful_malloc(sizeof(struct mutex))={-2:0}, m1={-1:0}, mutexes={3:0}] [L683] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L684] CALL mutex_lock(m1) VAL [m={-1:0}, mutexes={3:0}] [L669] CALL ldv_is_in_set(m, &mutexes) VAL [e={-1:0}, mutexes={3:0}, s={3:0}] [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [__mptr={3:0}, e={-1:0}, e={-1:0}, m={3:-4}, mutexes={3:0}, s={3:0}, s={3:0}] [L655] COND FALSE !(&m->list != (s)) VAL [__mptr={3:0}, e={-1:0}, e={-1:0}, m={3:-4}, mutexes={3:0}, s={3:0}, s={3:0}] [L660] return 0; VAL [\result=0, __mptr={3:0}, e={-1:0}, e={-1:0}, m={3:-4}, mutexes={3:0}, s={3:0}, s={3:0}] [L669] RET ldv_is_in_set(m, &mutexes) VAL [ldv_is_in_set(m, &mutexes)=0, m={-1:0}, m={-1:0}, mutexes={3:0}] [L669] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L670] CALL ldv_set_add(m, &mutexes) VAL [mutexes={3:0}, new={-1:0}, s={3:0}] [L636] CALL, EXPR ldv_is_in_set(new, s) VAL [e={-1:0}, mutexes={3:0}, s={3:0}] [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [__mptr={3:0}, e={-1:0}, e={-1:0}, m={3:-4}, mutexes={3:0}, s={3:0}, s={3:0}] [L655] COND FALSE !(&m->list != (s)) VAL [__mptr={3:0}, e={-1:0}, e={-1:0}, m={3:-4}, mutexes={3:0}, s={3:0}, s={3:0}] [L660] return 0; VAL [\result=0, __mptr={3:0}, e={-1:0}, e={-1:0}, m={3:-4}, mutexes={3:0}, s={3:0}, s={3:0}] [L636] RET, EXPR ldv_is_in_set(new, s) VAL [ldv_is_in_set(new, s)=0, mutexes={3:0}, new={-1:0}, new={-1:0}, s={3:0}, s={3:0}] [L636] COND TRUE !ldv_is_in_set(new, s) [L637] struct ldv_list_element *le; VAL [mutexes={3:0}, new={-1:0}, new={-1:0}, s={3:0}, s={3:0}] [L638] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [\old(size)=12, mutexes={3:0}] [L576] void *ptr = malloc(size); VAL [\old(size)=12, malloc(size)={-3:0}, mutexes={3:0}, ptr={-3:0}, size=12] [L577] CALL assume_abort_if_not(ptr!=0) VAL [\old(cond)=1, mutexes={3:0}] [L565] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, mutexes={3:0}] [L577] RET assume_abort_if_not(ptr!=0) VAL [\old(size)=12, malloc(size)={-3:0}, mutexes={3:0}, ptr={-3:0}, size=12] [L578] return ptr; VAL [\old(size)=12, \result={-3:0}, malloc(size)={-3:0}, mutexes={3:0}, ptr={-3:0}, size=12] [L638] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [ldv_successful_malloc(sizeof(struct ldv_list_element))={-3:0}, mutexes={3:0}, new={-1:0}, new={-1:0}, s={3:0}, s={3:0}] [L638] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L639] le->e = new VAL [le={-3:0}, mutexes={3:0}, new={-1:0}, new={-1:0}, s={3:0}, s={3:0}] [L640] CALL ldv_list_add(&le->list, s) VAL [head={3:0}, mutexes={3:0}, new={-3:4}] [L608] EXPR head->next VAL [head={3:0}, head={3:0}, head->next={3:0}, mutexes={3:0}, new={-3:4}, new={-3:4}] [L608] CALL __ldv_list_add(new, head, head->next) VAL [mutexes={3:0}, new={-3:4}, next={3:0}, prev={3:0}] [L596] next->prev = new [L597] new->next = next [L598] new->prev = prev [L599] prev->next = new VAL [mutexes={3:0}, new={-3:4}, new={-3:4}, next={3:0}, next={3:0}, prev={3:0}, prev={3:0}] [L608] RET __ldv_list_add(new, head, head->next) VAL [head={3:0}, head={3:0}, head->next={3:0}, mutexes={3:0}, new={-3:4}, new={-3:4}] [L640] RET ldv_list_add(&le->list, s) VAL [le={-3:0}, mutexes={3:0}, new={-1:0}, new={-1:0}, s={3:0}, s={3:0}] [L670] RET ldv_set_add(m, &mutexes) VAL [m={-1:0}, m={-1:0}, mutexes={3:0}] [L684] RET mutex_lock(m1) VAL [m1={-1:0}, m2={-2:0}, mutexes={3:0}] [L685] CALL mutex_lock(m1) VAL [m={-1:0}, mutexes={3:0}] [L669] CALL ldv_is_in_set(m, &mutexes) VAL [e={-1:0}, mutexes={3:0}, s={3:0}] [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [__mptr={-3:4}, e={-1:0}, e={-1:0}, m={-3:0}, mutexes={3:0}, s={3:0}, s={3:0}] [L655] COND TRUE &m->list != (s) [L656] EXPR m->e VAL [__mptr={-3:4}, e={-1:0}, e={-1:0}, m={-3:0}, m->e={-1:0}, mutexes={3:0}, s={3:0}, s={3:0}] [L656] COND TRUE m->e == e [L657] return 1; VAL [\result=1, __mptr={-3:4}, e={-1:0}, e={-1:0}, m={-3:0}, mutexes={3:0}, s={3:0}, s={3:0}] [L669] RET ldv_is_in_set(m, &mutexes) VAL [ldv_is_in_set(m, &mutexes)=1, m={-1:0}, m={-1:0}, mutexes={3:0}] [L669] COND TRUE ldv_is_in_set(m, &mutexes) [L669] CALL reach_error() VAL [mutexes={3:0}] [L562] COND FALSE !(0) VAL [mutexes={3:0}] [L562] __assert_fail ("0", "model/ldv.h", 3, __extension__ __PRETTY_FUNCTION__) VAL [mutexes={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 134 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.2s, OverallIterations: 6, TraceHistogramMax: 5, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 528 SDtfs, 903 SDslu, 511 SDs, 0 SdLazy, 2383 SolverSat, 556 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 361 GetRequests, 291 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 96 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 588 NumberOfCodeBlocks, 588 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 493 ConstructedInterpolants, 0 QuantifiedInterpolants, 142007 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1008 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 255/303 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...