/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 0.2.0-7d8eed3 [2020-11-06 22:31:14,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:31:14,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:31:14,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:31:14,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:31:14,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:31:14,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:31:14,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:31:14,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:31:14,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:31:14,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:31:14,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 22:31:14,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:31:14,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:31:14,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:31:14,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:31:14,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:31:14,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:31:14,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:31:14,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:31:14,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:31:14,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:31:14,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:31:14,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:31:14,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 22:31:14,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 22:31:14,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 22:31:14,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 22:31:14,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 22:31:14,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 22:31:14,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 22:31:14,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 22:31:14,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 22:31:14,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 22:31:14,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 22:31:14,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 22:31:14,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 22:31:14,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 22:31:14,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:31:14,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:31:14,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:31:14,744 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 [2020-11-06 22:31:14,769 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:31:14,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:31:14,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:31:14,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:31:14,771 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:31:14,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:31:14,772 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:31:14,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:31:14,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:31:14,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:31:14,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:31:14,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:31:14,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:31:14,773 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:31:14,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:31:14,774 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:31:14,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:31:14,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:31:14,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:31:14,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:31:14,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:31:14,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:31:14,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:31:14,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:31:14,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:31:14,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:31:14,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:31:14,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:31:14,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:31:14,776 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:31:15,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:31:15,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:31:15,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:31:15,223 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:31:15,224 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:31:15,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-11-06 22:31:15,307 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa9f97aa0/720f6921c67948a79ffcd062f4cae0cd/FLAGa921398f3 [2020-11-06 22:31:16,047 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:31:16,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-11-06 22:31:16,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa9f97aa0/720f6921c67948a79ffcd062f4cae0cd/FLAGa921398f3 [2020-11-06 22:31:16,292 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa9f97aa0/720f6921c67948a79ffcd062f4cae0cd [2020-11-06 22:31:16,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:31:16,301 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:31:16,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:31:16,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:31:16,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:31:16,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:31:16" (1/1) ... [2020-11-06 22:31:16,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b08df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:16, skipping insertion in model container [2020-11-06 22:31:16,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:31:16" (1/1) ... [2020-11-06 22:31:16,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:31:16,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:31:16,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:31:16,843 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:31:16,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:31:17,009 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:31:17,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17 WrapperNode [2020-11-06 22:31:17,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:31:17,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:31:17,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:31:17,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:31:17,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2020-11-06 22:31:17,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2020-11-06 22:31:17,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2020-11-06 22:31:17,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2020-11-06 22:31:17,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2020-11-06 22:31:17,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2020-11-06 22:31:17,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2020-11-06 22:31:17,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:31:17,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:31:17,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:31:17,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:31:17,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (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 [2020-11-06 22:31:17,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:31:17,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:31:17,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-06 22:31:17,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-06 22:31:17,196 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:31:17,196 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-06 22:31:17,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-11-06 22:31:17,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-11-06 22:31:17,196 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-11-06 22:31:17,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-11-06 22:31:17,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-11-06 22:31:17,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-11-06 22:31:17,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-11-06 22:31:17,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-11-06 22:31:17,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-11-06 22:31:17,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-11-06 22:31:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-11-06 22:31:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-11-06 22:31:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-11-06 22:31:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-11-06 22:31:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-11-06 22:31:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-11-06 22:31:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-11-06 22:31:17,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-11-06 22:31:17,199 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-11-06 22:31:17,199 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:31:17,199 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-06 22:31:17,199 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-06 22:31:17,199 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-06 22:31:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-06 22:31:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-06 22:31:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-06 22:31:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-06 22:31:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-06 22:31:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-06 22:31:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-06 22:31:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-06 22:31:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-06 22:31:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-06 22:31:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-06 22:31:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-06 22:31:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-06 22:31:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-06 22:31:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-06 22:31:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-06 22:31:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-06 22:31:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-06 22:31:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-06 22:31:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-06 22:31:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-06 22:31:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-06 22:31:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-06 22:31:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-06 22:31:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-06 22:31:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-06 22:31:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-06 22:31:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-06 22:31:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-06 22:31:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-06 22:31:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-06 22:31:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-06 22:31:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-06 22:31:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-06 22:31:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-06 22:31:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-06 22:31:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-06 22:31:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-06 22:31:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-06 22:31:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-06 22:31:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-06 22:31:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-06 22:31:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-06 22:31:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-06 22:31:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-06 22:31:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-06 22:31:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-06 22:31:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-06 22:31:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-06 22:31:17,207 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 22:31:17,207 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-06 22:31:17,207 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-06 22:31:17,207 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 22:31:17,207 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-06 22:31:17,207 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-06 22:31:17,207 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-06 22:31:17,208 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-06 22:31:17,208 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:31:17,208 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-06 22:31:17,208 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-06 22:31:17,208 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-06 22:31:17,208 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-06 22:31:17,208 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-06 22:31:17,209 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-06 22:31:17,209 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-06 22:31:17,209 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-06 22:31:17,209 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-06 22:31:17,209 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-06 22:31:17,209 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-06 22:31:17,209 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-06 22:31:17,209 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-06 22:31:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-06 22:31:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-06 22:31:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-06 22:31:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-06 22:31:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-06 22:31:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-06 22:31:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-06 22:31:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-06 22:31:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-06 22:31:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-06 22:31:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-06 22:31:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-06 22:31:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-06 22:31:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-06 22:31:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-06 22:31:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-06 22:31:17,212 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-06 22:31:17,212 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-06 22:31:17,212 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-06 22:31:17,212 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-06 22:31:17,212 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-06 22:31:17,212 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-06 22:31:17,212 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-06 22:31:17,213 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-06 22:31:17,213 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-06 22:31:17,213 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-06 22:31:17,213 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-06 22:31:17,213 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-06 22:31:17,213 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:31:17,213 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-06 22:31:17,213 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-06 22:31:17,214 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:31:17,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:31:17,214 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-06 22:31:17,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:31:17,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-11-06 22:31:17,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 22:31:17,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-11-06 22:31:17,215 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-11-06 22:31:17,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 22:31:17,215 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-11-06 22:31:17,215 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-11-06 22:31:17,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-11-06 22:31:17,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 22:31:17,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-11-06 22:31:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-11-06 22:31:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-11-06 22:31:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-11-06 22:31:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-11-06 22:31:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-11-06 22:31:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-11-06 22:31:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-11-06 22:31:17,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:31:17,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-11-06 22:31:17,217 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-11-06 22:31:17,217 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-11-06 22:31:17,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-11-06 22:31:17,217 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-11-06 22:31:17,217 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:31:17,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:31:17,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:31:17,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-06 22:31:17,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:31:17,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:31:17,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:31:18,111 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:31:18,111 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-06 22:31:18,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:31:18 BoogieIcfgContainer [2020-11-06 22:31:18,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:31:18,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:31:18,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:31:18,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:31:18,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:31:16" (1/3) ... [2020-11-06 22:31:18,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c1dc23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:31:18, skipping insertion in model container [2020-11-06 22:31:18,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (2/3) ... [2020-11-06 22:31:18,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c1dc23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:31:18, skipping insertion in model container [2020-11-06 22:31:18,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:31:18" (3/3) ... [2020-11-06 22:31:18,123 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-11-06 22:31:18,139 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:31:18,143 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:31:18,155 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:31:18,183 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:31:18,183 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:31:18,183 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:31:18,183 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:31:18,183 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:31:18,184 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:31:18,184 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:31:18,184 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:31:18,203 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-11-06 22:31:18,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-06 22:31:18,210 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:18,211 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] [2020-11-06 22:31:18,212 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:18,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:18,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1326439761, now seen corresponding path program 1 times [2020-11-06 22:31:18,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:18,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020897443] [2020-11-06 22:31:18,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:18,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:18,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:31:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:18,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 22:31:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:18,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:18,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-06 22:31:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:18,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:18,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-11-06 22:31:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:18,588 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-06 22:31:18,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020897443] [2020-11-06 22:31:18,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:31:18,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 22:31:18,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423227453] [2020-11-06 22:31:18,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 22:31:18,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:18,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 22:31:18,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-06 22:31:18,612 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 4 states. [2020-11-06 22:31:19,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:19,142 INFO L93 Difference]: Finished difference Result 222 states and 280 transitions. [2020-11-06 22:31:19,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:31:19,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-11-06 22:31:19,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:19,159 INFO L225 Difference]: With dead ends: 222 [2020-11-06 22:31:19,159 INFO L226 Difference]: Without dead ends: 111 [2020-11-06 22:31:19,166 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 [2020-11-06 22:31:19,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-11-06 22:31:19,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 98. [2020-11-06 22:31:19,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-11-06 22:31:19,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2020-11-06 22:31:19,260 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 44 [2020-11-06 22:31:19,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:19,261 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2020-11-06 22:31:19,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 22:31:19,261 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2020-11-06 22:31:19,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-06 22:31:19,263 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:19,263 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] [2020-11-06 22:31:19,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:31:19,264 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:19,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:19,265 INFO L82 PathProgramCache]: Analyzing trace with hash -547812891, now seen corresponding path program 1 times [2020-11-06 22:31:19,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:19,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315872208] [2020-11-06 22:31:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:19,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:19,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:31:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:19,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 22:31:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:19,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:19,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-06 22:31:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:19,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:19,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-11-06 22:31:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-06 22:31:19,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315872208] [2020-11-06 22:31:19,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:31:19,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 22:31:19,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445936963] [2020-11-06 22:31:19,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-06 22:31:19,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:19,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-06 22:31:19,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:31:19,538 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 6 states. [2020-11-06 22:31:20,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:20,492 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2020-11-06 22:31:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 22:31:20,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-11-06 22:31:20,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:20,498 INFO L225 Difference]: With dead ends: 119 [2020-11-06 22:31:20,498 INFO L226 Difference]: Without dead ends: 115 [2020-11-06 22:31:20,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:31:20,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-06 22:31:20,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 102. [2020-11-06 22:31:20,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-06 22:31:20,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2020-11-06 22:31:20,522 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 44 [2020-11-06 22:31:20,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:20,522 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2020-11-06 22:31:20,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-06 22:31:20,523 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2020-11-06 22:31:20,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-06 22:31:20,524 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:20,525 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] [2020-11-06 22:31:20,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:31:20,525 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:20,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:20,526 INFO L82 PathProgramCache]: Analyzing trace with hash 817475022, now seen corresponding path program 1 times [2020-11-06 22:31:20,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:20,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436756618] [2020-11-06 22:31:20,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:20,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:20,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:31:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:20,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 22:31:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:20,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:20,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-06 22:31:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:20,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:20,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-11-06 22:31:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-06 22:31:20,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436756618] [2020-11-06 22:31:20,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:31:20,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:31:20,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19376873] [2020-11-06 22:31:20,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 22:31:20,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:20,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 22:31:20,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:31:20,946 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand 7 states. [2020-11-06 22:31:23,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:23,302 INFO L93 Difference]: Finished difference Result 289 states and 352 transitions. [2020-11-06 22:31:23,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-06 22:31:23,303 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-11-06 22:31:23,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:23,307 INFO L225 Difference]: With dead ends: 289 [2020-11-06 22:31:23,307 INFO L226 Difference]: Without dead ends: 201 [2020-11-06 22:31:23,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-11-06 22:31:23,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-11-06 22:31:23,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 163. [2020-11-06 22:31:23,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-06 22:31:23,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 196 transitions. [2020-11-06 22:31:23,361 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 196 transitions. Word has length 44 [2020-11-06 22:31:23,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:23,362 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 196 transitions. [2020-11-06 22:31:23,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 22:31:23,362 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 196 transitions. [2020-11-06 22:31:23,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-11-06 22:31:23,366 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:23,366 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] [2020-11-06 22:31:23,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 22:31:23,367 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:23,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:23,367 INFO L82 PathProgramCache]: Analyzing trace with hash -847406493, now seen corresponding path program 1 times [2020-11-06 22:31:23,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:23,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092685324] [2020-11-06 22:31:23,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:31:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 22:31:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-06 22:31:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-06 22:31:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 22:31:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:31:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 22:31:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-06 22:31:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,722 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-11-06 22:31:23,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092685324] [2020-11-06 22:31:23,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411911539] [2020-11-06 22:31:23,723 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 [2020-11-06 22:31:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:24,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-06 22:31:24,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:31:24,463 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-11-06 22:31:24,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:31:24,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2020-11-06 22:31:24,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140434380] [2020-11-06 22:31:24,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 22:31:24,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:24,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 22:31:24,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:31:24,475 INFO L87 Difference]: Start difference. First operand 163 states and 196 transitions. Second operand 4 states. [2020-11-06 22:31:24,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:24,560 INFO L93 Difference]: Finished difference Result 295 states and 354 transitions. [2020-11-06 22:31:24,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-06 22:31:24,561 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2020-11-06 22:31:24,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:24,567 INFO L225 Difference]: With dead ends: 295 [2020-11-06 22:31:24,568 INFO L226 Difference]: Without dead ends: 169 [2020-11-06 22:31:24,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:31:24,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-11-06 22:31:24,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2020-11-06 22:31:24,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-06 22:31:24,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 202 transitions. [2020-11-06 22:31:24,630 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 202 transitions. Word has length 92 [2020-11-06 22:31:24,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:24,631 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 202 transitions. [2020-11-06 22:31:24,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 22:31:24,632 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 202 transitions. [2020-11-06 22:31:24,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-11-06 22:31:24,644 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:24,644 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] [2020-11-06 22:31:24,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:31:24,858 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:24,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:24,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1930944587, now seen corresponding path program 1 times [2020-11-06 22:31:24,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:24,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482270638] [2020-11-06 22:31:24,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:31:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 22:31:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-06 22:31:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-06 22:31:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 22:31:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:31:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 22:31:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:31:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-06 22:31:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 1 proven. 34 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-11-06 22:31:25,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482270638] [2020-11-06 22:31:25,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477102062] [2020-11-06 22:31:25,554 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 [2020-11-06 22:31:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:26,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 53 conjunts are in the unsatisfiable core [2020-11-06 22:31:26,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:31:26,120 INFO L382 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 [2020-11-06 22:31:26,123 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-06 22:31:26,128 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-06 22:31:26,129 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-06 22:31:26,129 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2020-11-06 22:31:26,329 INFO L382 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 [2020-11-06 22:31:26,330 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-06 22:31:26,345 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-06 22:31:26,351 INFO L382 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 [2020-11-06 22:31:26,353 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-06 22:31:26,364 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-06 22:31:26,364 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-06 22:31:26,365 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:10 [2020-11-06 22:31:26,604 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-06 22:31:26,631 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-06 22:31:26,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:31:26,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 24 [2020-11-06 22:31:26,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843269299] [2020-11-06 22:31:26,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-06 22:31:26,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:26,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-06 22:31:26,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2020-11-06 22:31:26,634 INFO L87 Difference]: Start difference. First operand 169 states and 202 transitions. Second operand 24 states. [2020-11-06 22:31:27,381 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-11-06 22:31:27,527 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-06 22:31:27,771 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-11-06 22:31:27,920 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-11-06 22:31:28,091 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-11-06 22:31:28,272 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-11-06 22:31:28,449 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-06 22:31:29,660 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-11-06 22:31:30,641 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-11-06 22:31:32,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:32,506 INFO L93 Difference]: Finished difference Result 412 states and 503 transitions. [2020-11-06 22:31:32,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-06 22:31:32,510 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 92 [2020-11-06 22:31:32,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:32,512 INFO L225 Difference]: With dead ends: 412 [2020-11-06 22:31:32,512 INFO L226 Difference]: Without dead ends: 218 [2020-11-06 22:31:32,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=418, Invalid=1652, Unknown=0, NotChecked=0, Total=2070 [2020-11-06 22:31:32,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-06 22:31:32,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 186. [2020-11-06 22:31:32,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-11-06 22:31:32,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 219 transitions. [2020-11-06 22:31:32,540 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 219 transitions. Word has length 92 [2020-11-06 22:31:32,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:32,541 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 219 transitions. [2020-11-06 22:31:32,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-06 22:31:32,541 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 219 transitions. [2020-11-06 22:31:32,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-11-06 22:31:32,542 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:32,543 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] [2020-11-06 22:31:32,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:31:32,757 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:32,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:32,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1290820386, now seen corresponding path program 1 times [2020-11-06 22:31:32,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:32,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097070191] [2020-11-06 22:31:32,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:31:32,817 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:31:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:31:32,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:31:32,928 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 22:31:32,928 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 22:31:32,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-06 22:31:32,965 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# [2020-11-06 22:31:32,966 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# [2020-11-06 22:31:32,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:31:32 BoogieIcfgContainer [2020-11-06 22:31:32,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:31:32,997 INFO L168 Benchmark]: Toolchain (without parser) took 16699.71 ms. Allocated memory was 151.0 MB in the beginning and 262.1 MB in the end (delta: 111.1 MB). Free memory was 124.5 MB in the beginning and 173.1 MB in the end (delta: -48.7 MB). Peak memory consumption was 63.5 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:32,997 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 122.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:31:32,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.37 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 96.0 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:32,999 INFO L168 Benchmark]: Boogie Preprocessor took 103.68 ms. Allocated memory is still 151.0 MB. Free memory was 96.0 MB in the beginning and 130.8 MB in the end (delta: -34.9 MB). Peak memory consumption was 4.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:32,999 INFO L168 Benchmark]: RCFGBuilder took 996.81 ms. Allocated memory is still 151.0 MB. Free memory was 130.8 MB in the beginning and 72.6 MB in the end (delta: 58.2 MB). Peak memory consumption was 58.7 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:33,000 INFO L168 Benchmark]: TraceAbstraction took 14879.76 ms. Allocated memory was 151.0 MB in the beginning and 262.1 MB in the end (delta: 111.1 MB). Free memory was 72.6 MB in the beginning and 173.1 MB in the end (delta: -100.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:33,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 122.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 708.37 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 96.0 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 103.68 ms. Allocated memory is still 151.0 MB. Free memory was 96.0 MB in the beginning and 130.8 MB in the end (delta: -34.9 MB). Peak memory consumption was 4.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 996.81 ms. Allocated memory is still 151.0 MB. Free memory was 130.8 MB in the beginning and 72.6 MB in the end (delta: 58.2 MB). Peak memory consumption was 58.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14879.76 ms. Allocated memory was 151.0 MB in the beginning and 262.1 MB in the end (delta: 111.1 MB). Free memory was 72.6 MB in the beginning and 173.1 MB in the end (delta: -100.5 MB). Peak memory consumption was 10.1 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: 14.7s, OverallIterations: 6, TraceHistogramMax: 5, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 526 SDtfs, 903 SDslu, 503 SDs, 0 SdLazy, 2383 SolverSat, 556 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 361 GetRequests, 291 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 4.4s 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 96 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s 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...