java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:08:53,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:08:53,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:08:53,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:08:53,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:08:53,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:08:53,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:08:53,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:08:53,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:08:53,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:08:53,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:08:53,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:08:53,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:08:53,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:08:53,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:08:53,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:08:53,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:08:53,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:08:53,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:08:53,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:08:53,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:08:53,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:08:53,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:08:53,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:08:53,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:08:53,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:08:53,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:08:53,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:08:53,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:08:53,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:08:53,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:08:53,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:08:53,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:08:53,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:08:53,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:08:53,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:08:53,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:08:53,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:08:53,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:08:53,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:08:53,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:08:53,136 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 [2019-10-14 23:08:53,155 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:08:53,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:08:53,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:08:53,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:08:53,157 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:08:53,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:08:53,157 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:08:53,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:08:53,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:08:53,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:08:53,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:08:53,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:08:53,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:08:53,159 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:08:53,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:08:53,159 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:08:53,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:08:53,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:08:53,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:08:53,160 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:08:53,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:08:53,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:08:53,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:08:53,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:08:53,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:08:53,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:08:53,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:08:53,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:08:53,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:08:53,435 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:08:53,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:08:53,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:08:53,454 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:08:53,455 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:08:53,455 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-2.i [2019-10-14 23:08:53,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d45606b69/5b0580c592b54853aa037044581661e4/FLAG31b720f0d [2019-10-14 23:08:54,092 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:08:54,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-2.i [2019-10-14 23:08:54,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d45606b69/5b0580c592b54853aa037044581661e4/FLAG31b720f0d [2019-10-14 23:08:54,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d45606b69/5b0580c592b54853aa037044581661e4 [2019-10-14 23:08:54,333 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:08:54,335 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:08:54,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:54,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:08:54,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:08:54,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:54" (1/1) ... [2019-10-14 23:08:54,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc63f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:54, skipping insertion in model container [2019-10-14 23:08:54,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:54" (1/1) ... [2019-10-14 23:08:54,351 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:08:54,407 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:08:54,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:54,950 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:08:55,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:55,095 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:08:55,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:55 WrapperNode [2019-10-14 23:08:55,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:55,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:08:55,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:08:55,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:08:55,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:55" (1/1) ... [2019-10-14 23:08:55,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:55" (1/1) ... [2019-10-14 23:08:55,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:55" (1/1) ... [2019-10-14 23:08:55,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:55" (1/1) ... [2019-10-14 23:08:55,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:55" (1/1) ... [2019-10-14 23:08:55,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:55" (1/1) ... [2019-10-14 23:08:55,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:55" (1/1) ... [2019-10-14 23:08:55,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:08:55,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:08:55,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:08:55,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:08:55,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:55" (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 [2019-10-14 23:08:55,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:08:55,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:08:55,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-14 23:08:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-14 23:08:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-14 23:08:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2019-10-14 23:08:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-10-14 23:08:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-10-14 23:08:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-10-14 23:08:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-10-14 23:08:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-10-14 23:08:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-10-14 23:08:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2019-10-14 23:08:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2019-10-14 23:08:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-14 23:08:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2019-10-14 23:08:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2019-10-14 23:08:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2019-10-14 23:08:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 23:08:55,235 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-14 23:08:55,235 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-14 23:08:55,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 23:08:55,235 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-10-14 23:08:55,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:08:55,235 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-14 23:08:55,235 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-14 23:08:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-14 23:08:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-14 23:08:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-14 23:08:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-14 23:08:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-14 23:08:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-14 23:08:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-14 23:08:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-14 23:08:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-14 23:08:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-14 23:08:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-14 23:08:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-14 23:08:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-14 23:08:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-14 23:08:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-14 23:08:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-14 23:08:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-14 23:08:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-14 23:08:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-14 23:08:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-14 23:08:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-14 23:08:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-14 23:08:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-14 23:08:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-14 23:08:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-14 23:08:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-14 23:08:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-14 23:08:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-14 23:08:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-14 23:08:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-14 23:08:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-14 23:08:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-14 23:08:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-14 23:08:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-14 23:08:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-14 23:08:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-14 23:08:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-14 23:08:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-14 23:08:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-14 23:08:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-14 23:08:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-14 23:08:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-14 23:08:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-14 23:08:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-14 23:08:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-14 23:08:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-14 23:08:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-14 23:08:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-14 23:08:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-14 23:08:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-14 23:08:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:08:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 23:08:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-14 23:08:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:08:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-14 23:08:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-14 23:08:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-14 23:08:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-14 23:08:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-14 23:08:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-14 23:08:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-14 23:08:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-14 23:08:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-14 23:08:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 23:08:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-14 23:08:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-14 23:08:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-14 23:08:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-14 23:08:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-14 23:08:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-14 23:08:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-14 23:08:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-14 23:08:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-14 23:08:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-14 23:08:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-14 23:08:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-14 23:08:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-14 23:08:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-14 23:08:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-14 23:08:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-14 23:08:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-14 23:08:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-14 23:08:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-14 23:08:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-14 23:08:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-14 23:08:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-14 23:08:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-14 23:08:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-14 23:08:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-14 23:08:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-14 23:08:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-14 23:08:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-14 23:08:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-14 23:08:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-14 23:08:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-14 23:08:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-14 23:08:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-14 23:08:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-14 23:08:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-14 23:08:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-14 23:08:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-14 23:08:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-14 23:08:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-14 23:08:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:08:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:08:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:08:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 23:08:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-14 23:08:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:08:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2019-10-14 23:08:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-10-14 23:08:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:08:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-10-14 23:08:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-10-14 23:08:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-10-14 23:08:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:08:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-10-14 23:08:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-10-14 23:08:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2019-10-14 23:08:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2019-10-14 23:08:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-14 23:08:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2019-10-14 23:08:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2019-10-14 23:08:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2019-10-14 23:08:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:08:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 23:08:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-14 23:08:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-14 23:08:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 23:08:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-10-14 23:08:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:08:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:08:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:08:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 23:08:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:08:55,963 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:08:55,964 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:08:55,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:55 BoogieIcfgContainer [2019-10-14 23:08:55,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:08:55,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:08:55,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:08:55,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:08:55,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:08:54" (1/3) ... [2019-10-14 23:08:55,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ce3aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:55, skipping insertion in model container [2019-10-14 23:08:55,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:55" (2/3) ... [2019-10-14 23:08:55,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ce3aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:55, skipping insertion in model container [2019-10-14 23:08:55,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:55" (3/3) ... [2019-10-14 23:08:55,976 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-2.i [2019-10-14 23:08:55,983 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:08:55,991 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-14 23:08:56,002 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-14 23:08:56,042 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:08:56,042 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:08:56,042 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:08:56,042 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:08:56,043 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:08:56,043 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:08:56,043 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:08:56,043 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:08:56,065 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2019-10-14 23:08:56,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-14 23:08:56,072 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:56,073 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:56,075 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:56,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:56,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1077103690, now seen corresponding path program 1 times [2019-10-14 23:08:56,089 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:56,089 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872753875] [2019-10-14 23:08:56,089 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:56,090 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:56,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:56,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:56,349 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872753875] [2019-10-14 23:08:56,350 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:56,351 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:08:56,351 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296126920] [2019-10-14 23:08:56,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:08:56,355 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:56,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:08:56,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:08:56,370 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 3 states. [2019-10-14 23:08:56,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:56,708 INFO L93 Difference]: Finished difference Result 231 states and 295 transitions. [2019-10-14 23:08:56,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:08:56,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-14 23:08:56,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:56,723 INFO L225 Difference]: With dead ends: 231 [2019-10-14 23:08:56,723 INFO L226 Difference]: Without dead ends: 124 [2019-10-14 23:08:56,728 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:08:56,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-14 23:08:56,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 99. [2019-10-14 23:08:56,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-10-14 23:08:56,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2019-10-14 23:08:56,796 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 24 [2019-10-14 23:08:56,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:56,796 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2019-10-14 23:08:56,797 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:08:56,797 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2019-10-14 23:08:56,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-14 23:08:56,801 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:56,801 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:56,801 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:56,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:56,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1362205908, now seen corresponding path program 1 times [2019-10-14 23:08:56,803 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:56,803 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750484108] [2019-10-14 23:08:56,803 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:56,803 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:56,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:56,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:56,992 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750484108] [2019-10-14 23:08:56,993 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:56,993 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:08:56,993 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581246763] [2019-10-14 23:08:56,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:08:56,995 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:56,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:08:56,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:08:56,996 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 5 states. [2019-10-14 23:08:57,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:57,540 INFO L93 Difference]: Finished difference Result 130 states and 156 transitions. [2019-10-14 23:08:57,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:08:57,541 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-10-14 23:08:57,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:57,543 INFO L225 Difference]: With dead ends: 130 [2019-10-14 23:08:57,544 INFO L226 Difference]: Without dead ends: 128 [2019-10-14 23:08:57,545 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:08:57,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-10-14 23:08:57,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 103. [2019-10-14 23:08:57,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-10-14 23:08:57,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2019-10-14 23:08:57,566 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 24 [2019-10-14 23:08:57,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:57,566 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2019-10-14 23:08:57,566 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:08:57,567 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2019-10-14 23:08:57,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-14 23:08:57,568 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:57,568 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:57,568 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:57,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:57,569 INFO L82 PathProgramCache]: Analyzing trace with hash 212397397, now seen corresponding path program 1 times [2019-10-14 23:08:57,569 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:57,569 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578103823] [2019-10-14 23:08:57,569 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:57,570 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:57,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:57,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:57,732 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578103823] [2019-10-14 23:08:57,735 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:57,735 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:08:57,736 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81751231] [2019-10-14 23:08:57,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:08:57,736 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:57,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:08:57,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:08:57,737 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 5 states. [2019-10-14 23:08:58,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:58,284 INFO L93 Difference]: Finished difference Result 231 states and 263 transitions. [2019-10-14 23:08:58,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:08:58,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-10-14 23:08:58,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:58,287 INFO L225 Difference]: With dead ends: 231 [2019-10-14 23:08:58,287 INFO L226 Difference]: Without dead ends: 144 [2019-10-14 23:08:58,288 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:08:58,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-14 23:08:58,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 112. [2019-10-14 23:08:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-10-14 23:08:58,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 127 transitions. [2019-10-14 23:08:58,306 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 127 transitions. Word has length 24 [2019-10-14 23:08:58,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:58,306 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 127 transitions. [2019-10-14 23:08:58,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:08:58,324 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 127 transitions. [2019-10-14 23:08:58,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-14 23:08:58,325 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:58,326 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:08:58,326 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:58,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:58,326 INFO L82 PathProgramCache]: Analyzing trace with hash -452485887, now seen corresponding path program 1 times [2019-10-14 23:08:58,327 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:58,327 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771927652] [2019-10-14 23:08:58,327 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:58,327 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:58,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:58,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:58,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:58,534 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771927652] [2019-10-14 23:08:58,534 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:58,534 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:08:58,535 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875691643] [2019-10-14 23:08:58,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:08:58,535 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:58,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:08:58,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:08:58,537 INFO L87 Difference]: Start difference. First operand 112 states and 127 transitions. Second operand 9 states. [2019-10-14 23:08:59,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:59,605 INFO L93 Difference]: Finished difference Result 144 states and 163 transitions. [2019-10-14 23:08:59,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-14 23:08:59,605 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2019-10-14 23:08:59,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:59,607 INFO L225 Difference]: With dead ends: 144 [2019-10-14 23:08:59,607 INFO L226 Difference]: Without dead ends: 126 [2019-10-14 23:08:59,608 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:08:59,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-10-14 23:08:59,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 108. [2019-10-14 23:08:59,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-14 23:08:59,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2019-10-14 23:08:59,624 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 28 [2019-10-14 23:08:59,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:59,624 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2019-10-14 23:08:59,624 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:08:59,624 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2019-10-14 23:08:59,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-14 23:08:59,626 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:59,626 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:08:59,626 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:59,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:59,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1784659630, now seen corresponding path program 1 times [2019-10-14 23:08:59,627 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:59,627 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501175374] [2019-10-14 23:08:59,627 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:59,627 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:59,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:00,316 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2019-10-14 23:09:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat