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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:47:41,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:47:41,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:47:41,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:47:41,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:47:41,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:47:41,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:47:41,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:47:41,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:47:41,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:47:41,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:47:41,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:47:41,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:47:41,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:47:41,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:47:41,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:47:41,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:47:41,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:47:41,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:47:41,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:47:41,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:47:41,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:47:41,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:47:41,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:47:41,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:47:41,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:47:41,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:47:41,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:47:41,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:47:41,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:47:41,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:47:41,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:47:41,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:47:41,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:47:41,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:47:41,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:47:41,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:47:41,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:47:41,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:47:41,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:47:41,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:47:41,466 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:47:41,486 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:47:41,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:47:41,486 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:47:41,487 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:47:41,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:47:41,488 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:47:41,488 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:47:41,489 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:47:41,489 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:47:41,489 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:47:41,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:47:41,491 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:47:41,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:47:41,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:47:41,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:47:41,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:47:41,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:47:41,492 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:47:41,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:47:41,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:47:41,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:47:41,494 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:47:41,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:47:41,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:47:41,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:47:41,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:47:41,496 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:47:41,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:47:41,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:47:41,496 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:47:41,546 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:47:41,558 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:47:41,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:47:41,563 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:47:41,563 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:47:41,564 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i [2019-09-10 01:47:41,624 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02cfc81a5/3ef57b50c8024fdcbddf480489d2d7c1/FLAGd925ad14b [2019-09-10 01:47:42,150 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:47:42,151 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i [2019-09-10 01:47:42,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02cfc81a5/3ef57b50c8024fdcbddf480489d2d7c1/FLAGd925ad14b [2019-09-10 01:47:42,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02cfc81a5/3ef57b50c8024fdcbddf480489d2d7c1 [2019-09-10 01:47:42,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:47:42,469 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:47:42,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:42,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:47:42,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:47:42,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:42" (1/1) ... [2019-09-10 01:47:42,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4587b159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:42, skipping insertion in model container [2019-09-10 01:47:42,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:42" (1/1) ... [2019-09-10 01:47:42,489 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:47:42,557 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:47:43,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:43,087 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:47:43,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:43,238 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:47:43,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:43 WrapperNode [2019-09-10 01:47:43,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:43,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:47:43,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:47:43,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:47:43,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:43" (1/1) ... [2019-09-10 01:47:43,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:43" (1/1) ... [2019-09-10 01:47:43,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:43" (1/1) ... [2019-09-10 01:47:43,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:43" (1/1) ... [2019-09-10 01:47:43,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:43" (1/1) ... [2019-09-10 01:47:43,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:43" (1/1) ... [2019-09-10 01:47:43,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:43" (1/1) ... [2019-09-10 01:47:43,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:47:43,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:47:43,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:47:43,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:47:43,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:47:43,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:47:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:47:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-10 01:47:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-10 01:47:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 01:47:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2019-09-10 01:47:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-09-10 01:47:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-09-10 01:47:43,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-09-10 01:47:43,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-09-10 01:47:43,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-09-10 01:47:43,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-09-10 01:47:43,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2019-09-10 01:47:43,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2019-09-10 01:47:43,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-09-10 01:47:43,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2019-09-10 01:47:43,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2019-09-10 01:47:43,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2019-09-10 01:47:43,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 01:47:43,403 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-09-10 01:47:43,403 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-10 01:47:43,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 01:47:43,404 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-09-10 01:47:43,404 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:47:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-10 01:47:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-10 01:47:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:47:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:47:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:47:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:47:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:47:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:47:43,407 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:47:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:47:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:47:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:47:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:47:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:47:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:47:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:47:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:47:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:47:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:47:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:47:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:47:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:47:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:47:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:47:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:47:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:47:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:47:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:47:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:47:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:47:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:47:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:47:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:47:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:47:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:47:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:47:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:47:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:47:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:47:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:47:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:47:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:47:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:47:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:47:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:47:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:47:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:47:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:47:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:47:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:47:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:47:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:47:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:47:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:47:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:47:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:47:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:47:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:47:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:47:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:47:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:47:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:47:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:47:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:47:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:47:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:47:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:47:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:47:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:47:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:47:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:47:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:47:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:47:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:47:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:47:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:47:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:47:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:47:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:47:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:47:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:47:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:47:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:47:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:47:43,424 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:47:43,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:47:43,424 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:47:43,424 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:47:43,424 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:47:43,424 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:47:43,424 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:47:43,425 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:47:43,425 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:47:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:47:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:47:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:47:43,427 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:47:43,427 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:47:43,427 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:47:43,428 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:47:43,428 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:47:43,428 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:47:43,428 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:47:43,428 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:47:43,428 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:47:43,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:47:43,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 01:47:43,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:47:43,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 01:47:43,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 01:47:43,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:47:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2019-09-10 01:47:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-09-10 01:47:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:47:43,431 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-09-10 01:47:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-09-10 01:47:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-09-10 01:47:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:47:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-09-10 01:47:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-09-10 01:47:43,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2019-09-10 01:47:43,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2019-09-10 01:47:43,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-09-10 01:47:43,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2019-09-10 01:47:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2019-09-10 01:47:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2019-09-10 01:47:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:47:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 01:47:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-09-10 01:47:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-10 01:47:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 01:47:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-09-10 01:47:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:47:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:47:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:47:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 01:47:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:47:44,272 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:47:44,273 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 01:47:44,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:44 BoogieIcfgContainer [2019-09-10 01:47:44,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:47:44,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:47:44,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:47:44,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:47:44,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:47:42" (1/3) ... [2019-09-10 01:47:44,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcf7ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:44, skipping insertion in model container [2019-09-10 01:47:44,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:43" (2/3) ... [2019-09-10 01:47:44,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcf7ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:44, skipping insertion in model container [2019-09-10 01:47:44,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:44" (3/3) ... [2019-09-10 01:47:44,283 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-1.i [2019-09-10 01:47:44,294 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:47:44,303 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-09-10 01:47:44,320 INFO L252 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-09-10 01:47:44,344 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:47:44,344 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:47:44,344 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:47:44,344 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:47:44,344 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:47:44,344 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:47:44,345 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:47:44,345 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:47:44,363 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2019-09-10 01:47:44,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-10 01:47:44,377 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:44,378 INFO L399 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] [2019-09-10 01:47:44,386 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:44,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:44,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1377823641, now seen corresponding path program 1 times [2019-09-10 01:47:44,395 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:44,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:44,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:44,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:44,450 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:44,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:44,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:44,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:47:44,609 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:44,616 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:44,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:44,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:44,636 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 2 states. [2019-09-10 01:47:44,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:44,670 INFO L93 Difference]: Finished difference Result 107 states and 118 transitions. [2019-09-10 01:47:44,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:44,672 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-09-10 01:47:44,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:44,681 INFO L225 Difference]: With dead ends: 107 [2019-09-10 01:47:44,681 INFO L226 Difference]: Without dead ends: 98 [2019-09-10 01:47:44,683 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:44,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-09-10 01:47:44,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2019-09-10 01:47:44,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-09-10 01:47:44,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2019-09-10 01:47:44,734 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 24 [2019-09-10 01:47:44,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:44,735 INFO L475 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2019-09-10 01:47:44,735 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:44,735 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2019-09-10 01:47:44,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-10 01:47:44,738 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:44,738 INFO L399 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] [2019-09-10 01:47:44,738 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:44,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:44,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1092721423, now seen corresponding path program 1 times [2019-09-10 01:47:44,739 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:44,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:44,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:44,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:44,741 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:44,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:44,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:44,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:47:44,860 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:44,861 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:47:44,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:47:44,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:47:44,862 INFO L87 Difference]: Start difference. First operand 98 states and 109 transitions. Second operand 4 states. [2019-09-10 01:47:44,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:44,905 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2019-09-10 01:47:44,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:47:44,908 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-09-10 01:47:44,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:44,912 INFO L225 Difference]: With dead ends: 102 [2019-09-10 01:47:44,912 INFO L226 Difference]: Without dead ends: 102 [2019-09-10 01:47:44,916 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:47:44,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-09-10 01:47:44,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-09-10 01:47:44,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-09-10 01:47:44,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 115 transitions. [2019-09-10 01:47:44,947 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 115 transitions. Word has length 24 [2019-09-10 01:47:44,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:44,947 INFO L475 AbstractCegarLoop]: Abstraction has 102 states and 115 transitions. [2019-09-10 01:47:44,947 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:47:44,948 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 115 transitions. [2019-09-10 01:47:44,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-10 01:47:44,951 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:44,951 INFO L399 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] [2019-09-10 01:47:44,952 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:44,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:44,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1627642568, now seen corresponding path program 1 times [2019-09-10 01:47:44,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:44,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:44,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:44,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:44,959 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:45,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:45,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:45,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:47:45,131 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:45,131 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:47:45,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:47:45,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:47:45,132 INFO L87 Difference]: Start difference. First operand 102 states and 115 transitions. Second operand 4 states. [2019-09-10 01:47:45,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:45,346 INFO L93 Difference]: Finished difference Result 130 states and 145 transitions. [2019-09-10 01:47:45,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:47:45,347 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-09-10 01:47:45,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:45,350 INFO L225 Difference]: With dead ends: 130 [2019-09-10 01:47:45,350 INFO L226 Difference]: Without dead ends: 130 [2019-09-10 01:47:45,351 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:47:45,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-09-10 01:47:45,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 111. [2019-09-10 01:47:45,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-09-10 01:47:45,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 125 transitions. [2019-09-10 01:47:45,378 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 125 transitions. Word has length 24 [2019-09-10 01:47:45,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:45,379 INFO L475 AbstractCegarLoop]: Abstraction has 111 states and 125 transitions. [2019-09-10 01:47:45,379 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:47:45,379 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 125 transitions. [2019-09-10 01:47:45,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-09-10 01:47:45,380 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:45,382 INFO L399 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] [2019-09-10 01:47:45,382 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:45,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:45,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1843559385, now seen corresponding path program 1 times [2019-09-10 01:47:45,383 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:45,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:45,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:45,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:45,386 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:45,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:45,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:45,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 01:47:45,588 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:45,590 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 01:47:45,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 01:47:45,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 01:47:45,591 INFO L87 Difference]: Start difference. First operand 111 states and 125 transitions. Second operand 8 states. [2019-09-10 01:47:46,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:46,004 INFO L93 Difference]: Finished difference Result 128 states and 143 transitions. [2019-09-10 01:47:46,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 01:47:46,005 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2019-09-10 01:47:46,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:46,010 INFO L225 Difference]: With dead ends: 128 [2019-09-10 01:47:46,011 INFO L226 Difference]: Without dead ends: 112 [2019-09-10 01:47:46,011 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2019-09-10 01:47:46,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2019-09-10 01:47:46,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2019-09-10 01:47:46,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-09-10 01:47:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 120 transitions. [2019-09-10 01:47:46,035 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 120 transitions. Word has length 28 [2019-09-10 01:47:46,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:46,035 INFO L475 AbstractCegarLoop]: Abstraction has 107 states and 120 transitions. [2019-09-10 01:47:46,035 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 01:47:46,036 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 120 transitions. [2019-09-10 01:47:46,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-09-10 01:47:46,038 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:46,038 INFO L399 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] [2019-09-10 01:47:46,038 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:46,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:46,038 INFO L82 PathProgramCache]: Analyzing trace with hash 472914007, now seen corresponding path program 1 times [2019-09-10 01:47:46,038 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:46,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:46,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:46,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:46,040 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:46,797 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2019-09-10 01:47:47,079 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2019-09-10 01:47:47,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:47,227 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:47:47,227 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:47:47,228 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 41 with the following transitions: [2019-09-10 01:47:47,234 INFO L207 CegarAbsIntRunner]: [0], [5], [6], [35], [37], [38], [39], [40], [41], [43], [46], [47], [70], [78], [81], [89], [93], [99], [101], [103], [106], [110], [118], [152], [153], [198], [199], [200], [201], [204], [212], [213], [214], [215], [216], [217], [218], [232], [233], [234] [2019-09-10 01:47:47,274 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:47:47,274 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:47:47,323 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:47:47,324 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 14 root evaluator evaluations with a maximum evaluation depth of 0. Performed 14 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 22 variables. [2019-09-10 01:47:47,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:47,329 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:47:47,356 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 01:47:47,356 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:47:47,358 INFO L420 sIntCurrentIteration]: We unified 39 AI predicates to 39 [2019-09-10 01:47:47,358 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:47:47,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:47:47,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-10 01:47:47,359 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:47,360 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:47,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:47,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:47,360 INFO L87 Difference]: Start difference. First operand 107 states and 120 transitions. Second operand 2 states. [2019-09-10 01:47:47,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:47,361 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 01:47:47,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:47,361 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 40 [2019-09-10 01:47:47,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:47,362 INFO L225 Difference]: With dead ends: 2 [2019-09-10 01:47:47,362 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:47:47,362 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:47,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:47:47,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:47:47,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:47:47,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:47:47,363 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-09-10 01:47:47,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:47,363 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:47:47,363 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:47,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:47:47,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:47:47,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:47:47 BoogieIcfgContainer [2019-09-10 01:47:47,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:47:47,371 INFO L168 Benchmark]: Toolchain (without parser) took 4901.69 ms. Allocated memory was 141.0 MB in the beginning and 257.9 MB in the end (delta: 116.9 MB). Free memory was 86.6 MB in the beginning and 127.0 MB in the end (delta: -40.4 MB). Peak memory consumption was 76.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:47,372 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 107.3 MB in the beginning and 107.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:47:47,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.96 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 86.2 MB in the beginning and 159.3 MB in the end (delta: -73.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:47,374 INFO L168 Benchmark]: Boogie Preprocessor took 99.96 ms. Allocated memory is still 201.3 MB. Free memory was 159.3 MB in the beginning and 155.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:47,374 INFO L168 Benchmark]: RCFGBuilder took 933.65 ms. Allocated memory is still 201.3 MB. Free memory was 155.2 MB in the beginning and 93.6 MB in the end (delta: 61.6 MB). Peak memory consumption was 61.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:47,375 INFO L168 Benchmark]: TraceAbstraction took 3092.97 ms. Allocated memory was 201.3 MB in the beginning and 257.9 MB in the end (delta: 56.6 MB). Free memory was 93.0 MB in the beginning and 127.0 MB in the end (delta: -34.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:47,380 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 107.3 MB in the beginning and 107.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.96 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 86.2 MB in the beginning and 159.3 MB in the end (delta: -73.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.96 ms. Allocated memory is still 201.3 MB. Free memory was 159.3 MB in the beginning and 155.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 933.65 ms. Allocated memory is still 201.3 MB. Free memory was 155.2 MB in the beginning and 93.6 MB in the end (delta: 61.6 MB). Peak memory consumption was 61.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3092.97 ms. Allocated memory was 201.3 MB in the beginning and 257.9 MB in the end (delta: 56.6 MB). Free memory was 93.0 MB in the beginning and 127.0 MB in the end (delta: -34.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 664]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 668]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 660]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 24 procedures, 129 locations, 3 error locations. SAFE Result, 3.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 436 SDtfs, 47 SDslu, 892 SDs, 0 SdLazy, 219 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.8717948717948718 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 176846 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...