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-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:24:45,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:24:45,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:24:45,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:24:45,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:24:45,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:24:45,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:24:45,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:24:45,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:24:45,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:24:45,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:24:45,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:24:45,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:24:45,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:24:45,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:24:45,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:24:45,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:24:45,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:24:45,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:24:45,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:24:45,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:24:45,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:24:45,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:24:45,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:24:45,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:24:45,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:24:45,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:24:45,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:24:45,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:24:45,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:24:45,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:24:45,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:24:45,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:24:45,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:24:45,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:24:45,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:24:45,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:24:45,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:24:45,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:24:45,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:24:45,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:24:45,500 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 [2019-10-03 02:24:45,518 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:24:45,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:24:45,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:24:45,519 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:24:45,519 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:24:45,520 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:24:45,520 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:24:45,520 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:24:45,520 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:24:45,521 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:24:45,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:24:45,522 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:24:45,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:24:45,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:24:45,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:24:45,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:24:45,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:24:45,527 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:24:45,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:24:45,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:24:45,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:24:45,528 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:24:45,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:24:45,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:24:45,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:24:45,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:24:45,529 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:24:45,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:24:45,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:24:45,530 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:24:45,579 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:24:45,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:24:45,598 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:24:45,600 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:24:45,600 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:24:45,601 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-2.i [2019-10-03 02:24:45,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3c473bd3/677f4eecb1a941849f642bfcb983e6bb/FLAG1d491934a [2019-10-03 02:24:46,349 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:24:46,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-2.i [2019-10-03 02:24:46,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3c473bd3/677f4eecb1a941849f642bfcb983e6bb/FLAG1d491934a [2019-10-03 02:24:46,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3c473bd3/677f4eecb1a941849f642bfcb983e6bb [2019-10-03 02:24:46,622 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:24:46,624 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:24:46,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:24:46,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:24:46,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:24:46,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:24:46" (1/1) ... [2019-10-03 02:24:46,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7354cb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:46, skipping insertion in model container [2019-10-03 02:24:46,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:24:46" (1/1) ... [2019-10-03 02:24:46,647 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:24:46,730 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:24:47,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:24:47,412 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:24:47,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:24:47,617 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:24:47,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:47 WrapperNode [2019-10-03 02:24:47,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:24:47,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:24:47,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:24:47,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:24:47,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:47" (1/1) ... [2019-10-03 02:24:47,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:47" (1/1) ... [2019-10-03 02:24:47,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:47" (1/1) ... [2019-10-03 02:24:47,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:47" (1/1) ... [2019-10-03 02:24:47,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:47" (1/1) ... [2019-10-03 02:24:47,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:47" (1/1) ... [2019-10-03 02:24:47,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:47" (1/1) ... [2019-10-03 02:24:47,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:24:47,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:24:47,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:24:47,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:24:47,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:47" (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 [2019-10-03 02:24:47,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:24:47,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:24:47,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-03 02:24:47,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-03 02:24:47,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-03 02:24:47,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2019-10-03 02:24:47,801 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-10-03 02:24:47,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-10-03 02:24:47,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-10-03 02:24:47,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-10-03 02:24:47,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-10-03 02:24:47,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-10-03 02:24:47,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2019-10-03 02:24:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2019-10-03 02:24:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-03 02:24:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2019-10-03 02:24:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2019-10-03 02:24:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2019-10-03 02:24:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-03 02:24:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-03 02:24:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-03 02:24:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-03 02:24:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-10-03 02:24:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:24:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-03 02:24:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-03 02:24:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-03 02:24:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-03 02:24:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-03 02:24:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-03 02:24:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-03 02:24:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-03 02:24:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-03 02:24:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-03 02:24:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-03 02:24:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-03 02:24:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-03 02:24:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-03 02:24:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-03 02:24:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-03 02:24:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-03 02:24:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-03 02:24:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-03 02:24:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-03 02:24:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-03 02:24:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-03 02:24:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-03 02:24:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-03 02:24:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-03 02:24:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-03 02:24:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-03 02:24:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-03 02:24:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-03 02:24:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-03 02:24:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-03 02:24:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-03 02:24:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-03 02:24:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-03 02:24:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-03 02:24:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-03 02:24:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-03 02:24:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-03 02:24:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-03 02:24:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-03 02:24:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-03 02:24:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-03 02:24:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-03 02:24:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-03 02:24:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-03 02:24:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-03 02:24:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-03 02:24:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-03 02:24:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-03 02:24:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-03 02:24:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-03 02:24:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-03 02:24:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:24:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 02:24:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-03 02:24:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:24:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-03 02:24:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-03 02:24:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-03 02:24:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-03 02:24:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-03 02:24:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-03 02:24:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-03 02:24:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-03 02:24:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-03 02:24:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:24:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-03 02:24:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-03 02:24:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-03 02:24:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-03 02:24:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-03 02:24:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-03 02:24:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-03 02:24:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-03 02:24:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-03 02:24:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-03 02:24:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-03 02:24:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-03 02:24:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-03 02:24:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-03 02:24:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-03 02:24:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-03 02:24:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-03 02:24:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-03 02:24:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-03 02:24:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-03 02:24:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-03 02:24:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-03 02:24:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-03 02:24:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-03 02:24:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-03 02:24:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-03 02:24:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-03 02:24:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-03 02:24:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-03 02:24:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-03 02:24:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-03 02:24:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-03 02:24:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-03 02:24:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-03 02:24:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-03 02:24:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-03 02:24:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-03 02:24:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-03 02:24:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-03 02:24:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:24:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 02:24:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:24:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-03 02:24:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-03 02:24:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:24:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2019-10-03 02:24:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-10-03 02:24:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:24:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-10-03 02:24:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-10-03 02:24:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-10-03 02:24:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:24:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-10-03 02:24:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-10-03 02:24:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2019-10-03 02:24:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2019-10-03 02:24:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-03 02:24:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2019-10-03 02:24:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2019-10-03 02:24:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2019-10-03 02:24:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:24:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-03 02:24:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-03 02:24:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-03 02:24:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-03 02:24:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-10-03 02:24:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:24:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:24:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:24:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-03 02:24:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:24:48,825 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:24:48,826 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:24:48,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:24:48 BoogieIcfgContainer [2019-10-03 02:24:48,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:24:48,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:24:48,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:24:48,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:24:48,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:24:46" (1/3) ... [2019-10-03 02:24:48,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61303f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:24:48, skipping insertion in model container [2019-10-03 02:24:48,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:47" (2/3) ... [2019-10-03 02:24:48,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61303f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:24:48, skipping insertion in model container [2019-10-03 02:24:48,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:24:48" (3/3) ... [2019-10-03 02:24:48,838 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-2.i [2019-10-03 02:24:48,851 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:24:48,863 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-03 02:24:48,885 INFO L252 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-03 02:24:48,920 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:24:48,920 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:24:48,921 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:24:48,921 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:24:48,921 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:24:48,921 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:24:48,921 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:24:48,922 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:24:48,942 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2019-10-03 02:24:48,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-03 02:24:48,956 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:24:48,958 INFO L411 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] [2019-10-03 02:24:48,961 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:24:48,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:24:48,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1077103690, now seen corresponding path program 1 times [2019-10-03 02:24:48,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:24:49,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:49,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:24:49,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:49,051 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:24:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:24:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:24:49,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:24:49,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:24:49,246 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:24:49,253 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:24:49,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:24:49,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:24:49,270 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2019-10-03 02:24:49,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:24:49,297 INFO L93 Difference]: Finished difference Result 108 states and 120 transitions. [2019-10-03 02:24:49,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:24:49,299 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-10-03 02:24:49,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:24:49,319 INFO L225 Difference]: With dead ends: 108 [2019-10-03 02:24:49,319 INFO L226 Difference]: Without dead ends: 99 [2019-10-03 02:24:49,322 INFO L640 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 [2019-10-03 02:24:49,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-10-03 02:24:49,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-10-03 02:24:49,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-10-03 02:24:49,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2019-10-03 02:24:49,375 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 24 [2019-10-03 02:24:49,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:24:49,375 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2019-10-03 02:24:49,376 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:24:49,376 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2019-10-03 02:24:49,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-03 02:24:49,378 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:24:49,378 INFO L411 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] [2019-10-03 02:24:49,379 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:24:49,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:24:49,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1362205908, now seen corresponding path program 1 times [2019-10-03 02:24:49,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:24:49,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:49,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:24:49,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:49,385 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:24:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:24:49,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:24:49,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:24:49,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:24:49,538 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:24:49,544 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:24:49,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:24:49,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:24:49,546 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 4 states. [2019-10-03 02:24:49,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:24:49,593 INFO L93 Difference]: Finished difference Result 103 states and 117 transitions. [2019-10-03 02:24:49,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:24:49,594 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-10-03 02:24:49,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:24:49,599 INFO L225 Difference]: With dead ends: 103 [2019-10-03 02:24:49,599 INFO L226 Difference]: Without dead ends: 103 [2019-10-03 02:24:49,600 INFO L640 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 [2019-10-03 02:24:49,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-10-03 02:24:49,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2019-10-03 02:24:49,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-10-03 02:24:49,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2019-10-03 02:24:49,617 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 24 [2019-10-03 02:24:49,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:24:49,618 INFO L475 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2019-10-03 02:24:49,618 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:24:49,618 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2019-10-03 02:24:49,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-03 02:24:49,620 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:24:49,620 INFO L411 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] [2019-10-03 02:24:49,620 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:24:49,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:24:49,621 INFO L82 PathProgramCache]: Analyzing trace with hash 212397397, now seen corresponding path program 1 times [2019-10-03 02:24:49,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:24:49,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:49,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:24:49,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:49,626 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:24:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:24:49,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:24:49,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:24:49,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:24:49,808 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:24:49,808 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:24:49,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:24:49,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:24:49,809 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 4 states. [2019-10-03 02:24:50,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:24:50,091 INFO L93 Difference]: Finished difference Result 131 states and 147 transitions. [2019-10-03 02:24:50,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:24:50,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-10-03 02:24:50,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:24:50,098 INFO L225 Difference]: With dead ends: 131 [2019-10-03 02:24:50,099 INFO L226 Difference]: Without dead ends: 131 [2019-10-03 02:24:50,103 INFO L640 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 [2019-10-03 02:24:50,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-03 02:24:50,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 112. [2019-10-03 02:24:50,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-10-03 02:24:50,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 127 transitions. [2019-10-03 02:24:50,136 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 127 transitions. Word has length 24 [2019-10-03 02:24:50,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:24:50,136 INFO L475 AbstractCegarLoop]: Abstraction has 112 states and 127 transitions. [2019-10-03 02:24:50,136 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:24:50,137 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 127 transitions. [2019-10-03 02:24:50,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-03 02:24:50,138 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:24:50,138 INFO L411 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] [2019-10-03 02:24:50,139 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:24:50,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:24:50,141 INFO L82 PathProgramCache]: Analyzing trace with hash -452485887, now seen corresponding path program 1 times [2019-10-03 02:24:50,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:24:50,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:50,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:24:50,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:50,153 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:24:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:24:50,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:24:50,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:24:50,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:24:50,389 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:24:50,390 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:24:50,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:24:50,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:24:50,391 INFO L87 Difference]: Start difference. First operand 112 states and 127 transitions. Second operand 8 states. [2019-10-03 02:24:50,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:24:50,954 INFO L93 Difference]: Finished difference Result 129 states and 145 transitions. [2019-10-03 02:24:50,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-03 02:24:50,955 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2019-10-03 02:24:50,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:24:50,958 INFO L225 Difference]: With dead ends: 129 [2019-10-03 02:24:50,958 INFO L226 Difference]: Without dead ends: 113 [2019-10-03 02:24:50,959 INFO L640 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 [2019-10-03 02:24:50,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-03 02:24:50,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 108. [2019-10-03 02:24:50,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-03 02:24:50,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2019-10-03 02:24:50,971 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 28 [2019-10-03 02:24:50,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:24:50,972 INFO L475 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2019-10-03 02:24:50,972 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:24:50,972 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2019-10-03 02:24:50,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-03 02:24:50,974 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:24:50,976 INFO L411 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] [2019-10-03 02:24:50,977 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:24:50,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:24:50,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1784659630, now seen corresponding path program 1 times [2019-10-03 02:24:50,977 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:24:50,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:50,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:24:50,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:50,988 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:24:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:24:51,982 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2019-10-03 02:24:52,264 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2019-10-03 02:24:52,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:24:52,443 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:24:52,443 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:24:52,445 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 41 with the following transitions: [2019-10-03 02:24:52,449 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], [153], [154], [199], [200], [201], [202], [205], [213], [214], [215], [216], [217], [218], [219], [235], [236], [237] [2019-10-03 02:24:52,505 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:24:52,506 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:24:52,582 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:24:52,585 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. [2019-10-03 02:24:52,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:24:52,590 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:24:52,631 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:24:52,631 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:24:52,634 INFO L420 sIntCurrentIteration]: We unified 39 AI predicates to 39 [2019-10-03 02:24:52,634 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:24:52,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:24:52,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-10-03 02:24:52,636 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:24:52,636 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:24:52,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:24:52,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:24:52,637 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand 2 states. [2019-10-03 02:24:52,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:24:52,638 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:24:52,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:24:52,638 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 40 [2019-10-03 02:24:52,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:24:52,638 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:24:52,639 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:24:52,639 INFO L640 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 [2019-10-03 02:24:52,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:24:52,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:24:52,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:24:52,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:24:52,640 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-10-03 02:24:52,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:24:52,641 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:24:52,641 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:24:52,641 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:24:52,641 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:24:52,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:24:52 BoogieIcfgContainer [2019-10-03 02:24:52,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:24:52,650 INFO L168 Benchmark]: Toolchain (without parser) took 6026.13 ms. Allocated memory was 133.2 MB in the beginning and 264.2 MB in the end (delta: 131.1 MB). Free memory was 85.3 MB in the beginning and 120.9 MB in the end (delta: -35.7 MB). Peak memory consumption was 95.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:52,651 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 133.2 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:24:52,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 993.34 ms. Allocated memory was 133.2 MB in the beginning and 200.8 MB in the end (delta: 67.6 MB). Free memory was 85.1 MB in the beginning and 158.5 MB in the end (delta: -73.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:52,654 INFO L168 Benchmark]: Boogie Preprocessor took 101.35 ms. Allocated memory is still 200.8 MB. Free memory was 158.5 MB in the beginning and 154.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:52,655 INFO L168 Benchmark]: RCFGBuilder took 1107.52 ms. Allocated memory is still 200.8 MB. Free memory was 154.9 MB in the beginning and 91.0 MB in the end (delta: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:52,656 INFO L168 Benchmark]: TraceAbstraction took 3818.57 ms. Allocated memory was 200.8 MB in the beginning and 264.2 MB in the end (delta: 63.4 MB). Free memory was 91.0 MB in the beginning and 120.9 MB in the end (delta: -29.9 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:52,661 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 133.2 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 993.34 ms. Allocated memory was 133.2 MB in the beginning and 200.8 MB in the end (delta: 67.6 MB). Free memory was 85.1 MB in the beginning and 158.5 MB in the end (delta: -73.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.35 ms. Allocated memory is still 200.8 MB. Free memory was 158.5 MB in the beginning and 154.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1107.52 ms. Allocated memory is still 200.8 MB. Free memory was 154.9 MB in the beginning and 91.0 MB in the end (delta: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3818.57 ms. Allocated memory was 200.8 MB in the beginning and 264.2 MB in the end (delta: 63.4 MB). Free memory was 91.0 MB in the beginning and 120.9 MB in the end (delta: -29.9 MB). Peak memory consumption was 33.5 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, 130 locations, 3 error locations. SAFE Result, 3.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 444 SDtfs, 47 SDslu, 912 SDs, 0 SdLazy, 219 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s 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...