/usr/bin/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:06:51,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:06:51,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:06:51,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 19:06:51,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 19:06:51,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 19:06:51,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 19:06:51,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 19:06:51,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 19:06:51,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 19:06:51,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 19:06:51,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 19:06:51,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:06:51,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:06:51,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:06:51,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:06:51,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:06:51,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:06:51,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:06:51,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:06:51,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:06:51,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:06:51,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:06:51,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:06:51,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 19:06:51,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 19:06:51,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 19:06:51,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 19:06:51,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 19:06:51,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 19:06:51,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 19:06:51,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 19:06:51,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 19:06:51,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 19:06:51,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 19:06:51,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 19:06:51,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 19:06:51,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 19:06:51,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:06:51,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:06:51,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:06:51,719 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:06:51,732 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:06:51,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:06:51,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:06:51,733 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:06:51,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:06:51,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:06:51,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:06:51,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:06:51,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:06:51,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:06:51,735 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:06:51,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:06:51,735 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:06:51,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:06:51,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:06:51,736 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:06:51,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:06:51,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:06:51,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:06:51,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:06:51,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:06:51,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:06:51,737 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:06:52,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:06:52,045 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:06:52,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:06:52,049 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:06:52,050 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:06:52,050 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-08-22 19:06:52,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7fedc5ad/cbe41e2019834dad9c7b743c6bd6bc48/FLAG3a6e1a817 [2020-08-22 19:06:52,650 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:06:52,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-08-22 19:06:52,664 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7fedc5ad/cbe41e2019834dad9c7b743c6bd6bc48/FLAG3a6e1a817 [2020-08-22 19:06:52,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7fedc5ad/cbe41e2019834dad9c7b743c6bd6bc48 [2020-08-22 19:06:52,922 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:06:52,924 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:06:52,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:06:52,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:06:52,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:06:52,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:06:52" (1/1) ... [2020-08-22 19:06:52,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33aa9fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:52, skipping insertion in model container [2020-08-22 19:06:52,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:06:52" (1/1) ... [2020-08-22 19:06:52,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:06:52,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:06:53,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:06:53,445 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:06:53,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:06:53,575 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:06:53,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53 WrapperNode [2020-08-22 19:06:53,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:06:53,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:06:53,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:06:53,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:06:53,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:06:53,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:06:53,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:06:53,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:06:53,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:06:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:06:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:06:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-22 19:06:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-22 19:06:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 19:06:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-22 19:06:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-08-22 19:06:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-08-22 19:06:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-08-22 19:06:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-08-22 19:06:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-08-22 19:06:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-08-22 19:06:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-08-22 19:06:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-08-22 19:06:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-08-22 19:06:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-08-22 19:06:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-08-22 19:06:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-08-22 19:06:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-08-22 19:06:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-22 19:06:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-08-22 19:06:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-08-22 19:06:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-22 19:06:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-08-22 19:06:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:06:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-22 19:06:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-22 19:06:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-22 19:06:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-22 19:06:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-22 19:06:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-22 19:06:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-22 19:06:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-22 19:06:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-22 19:06:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-22 19:06:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-22 19:06:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-22 19:06:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-22 19:06:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-22 19:06:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-22 19:06:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-22 19:06:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-22 19:06:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-22 19:06:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-22 19:06:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-22 19:06:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-22 19:06:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-22 19:06:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-22 19:06:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-22 19:06:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-22 19:06:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-22 19:06:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-22 19:06:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-22 19:06:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-22 19:06:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-22 19:06:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-22 19:06:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-22 19:06:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-22 19:06:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-22 19:06:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-22 19:06:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-22 19:06:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-22 19:06:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-22 19:06:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-22 19:06:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-22 19:06:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-22 19:06:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-22 19:06:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-22 19:06:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-22 19:06:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-22 19:06:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-22 19:06:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-22 19:06:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-22 19:06:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-22 19:06:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-22 19:06:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-22 19:06:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-22 19:06:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 19:06:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 19:06:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-22 19:06:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 19:06:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-22 19:06:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-22 19:06:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-22 19:06:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-22 19:06:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 19:06:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-22 19:06:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-22 19:06:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 19:06:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-22 19:06:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-22 19:06:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-22 19:06:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-22 19:06:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-22 19:06:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-22 19:06:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-22 19:06:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-22 19:06:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-22 19:06:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-22 19:06:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-22 19:06:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-22 19:06:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-22 19:06:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-22 19:06:53,748 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-22 19:06:53,748 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-22 19:06:53,748 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-22 19:06:53,748 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-22 19:06:53,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-22 19:06:53,748 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-22 19:06:53,748 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-22 19:06:53,748 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-22 19:06:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-22 19:06:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-22 19:06:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-22 19:06:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-22 19:06:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-22 19:06:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-22 19:06:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-22 19:06:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-22 19:06:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-22 19:06:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-22 19:06:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-22 19:06:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-22 19:06:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-22 19:06:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-22 19:06:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-22 19:06:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-22 19:06:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:06:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 19:06:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:06:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-22 19:06:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 19:06:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-08-22 19:06:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-08-22 19:06:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 19:06:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-08-22 19:06:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-08-22 19:06:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-08-22 19:06:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 19:06:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-08-22 19:06:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-08-22 19:06:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-08-22 19:06:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-08-22 19:06:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-08-22 19:06:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-08-22 19:06:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-08-22 19:06:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-08-22 19:06:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 19:06:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-22 19:06:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-08-22 19:06:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-08-22 19:06:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-22 19:06:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-08-22 19:06:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:06:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:06:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 19:06:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-22 19:06:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:06:54,529 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:06:54,529 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-22 19:06:54,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:06:54 BoogieIcfgContainer [2020-08-22 19:06:54,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:06:54,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:06:54,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:06:54,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:06:54,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:06:52" (1/3) ... [2020-08-22 19:06:54,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621c0cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:06:54, skipping insertion in model container [2020-08-22 19:06:54,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (2/3) ... [2020-08-22 19:06:54,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621c0cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:06:54, skipping insertion in model container [2020-08-22 19:06:54,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:06:54" (3/3) ... [2020-08-22 19:06:54,559 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-08-22 19:06:54,568 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:06:54,576 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-08-22 19:06:54,590 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-08-22 19:06:54,611 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:06:54,611 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:06:54,612 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:06:54,612 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:06:54,612 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:06:54,612 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:06:54,612 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:06:54,613 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:06:54,631 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-08-22 19:06:54,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-22 19:06:54,643 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:54,644 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:06:54,645 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:54,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:54,650 INFO L82 PathProgramCache]: Analyzing trace with hash 899835465, now seen corresponding path program 1 times [2020-08-22 19:06:54,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:54,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364468077] [2020-08-22 19:06:54,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:54,729 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:54,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:54,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 19:06:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:54,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:06:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:55,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:06:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:55,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 19:06:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:55,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:06:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:55,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 19:06:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:55,104 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-22 19:06:55,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364468077] [2020-08-22 19:06:55,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:55,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 19:06:55,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75504001] [2020-08-22 19:06:55,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 19:06:55,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:55,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 19:06:55,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:06:55,130 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 6 states. [2020-08-22 19:06:55,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:06:55,835 INFO L93 Difference]: Finished difference Result 367 states and 421 transitions. [2020-08-22 19:06:55,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 19:06:55,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-08-22 19:06:55,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:06:55,852 INFO L225 Difference]: With dead ends: 367 [2020-08-22 19:06:55,852 INFO L226 Difference]: Without dead ends: 192 [2020-08-22 19:06:55,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:06:55,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-08-22 19:06:55,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2020-08-22 19:06:55,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-08-22 19:06:55,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 184 transitions. [2020-08-22 19:06:55,952 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 184 transitions. Word has length 60 [2020-08-22 19:06:55,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:06:55,953 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 184 transitions. [2020-08-22 19:06:55,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 19:06:55,954 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 184 transitions. [2020-08-22 19:06:55,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-22 19:06:55,956 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:55,957 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:06:55,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:06:55,957 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:55,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:55,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1713006157, now seen corresponding path program 1 times [2020-08-22 19:06:55,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:55,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830002034] [2020-08-22 19:06:55,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:55,963 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:56,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:56,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 19:06:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:56,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:06:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:56,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:06:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:56,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 19:06:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:56,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:06:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:56,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 19:06:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:56,238 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-22 19:06:56,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830002034] [2020-08-22 19:06:56,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:56,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 19:06:56,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239915227] [2020-08-22 19:06:56,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 19:06:56,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:56,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 19:06:56,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-08-22 19:06:56,241 INFO L87 Difference]: Start difference. First operand 172 states and 184 transitions. Second operand 11 states. [2020-08-22 19:06:57,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:06:57,948 INFO L93 Difference]: Finished difference Result 494 states and 552 transitions. [2020-08-22 19:06:57,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-22 19:06:57,949 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2020-08-22 19:06:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:06:57,954 INFO L225 Difference]: With dead ends: 494 [2020-08-22 19:06:57,955 INFO L226 Difference]: Without dead ends: 343 [2020-08-22 19:06:57,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2020-08-22 19:06:57,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-08-22 19:06:58,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 277. [2020-08-22 19:06:58,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-08-22 19:06:58,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 308 transitions. [2020-08-22 19:06:58,013 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 308 transitions. Word has length 63 [2020-08-22 19:06:58,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:06:58,014 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 308 transitions. [2020-08-22 19:06:58,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 19:06:58,014 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 308 transitions. [2020-08-22 19:06:58,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-08-22 19:06:58,017 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:58,017 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:06:58,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:06:58,018 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:58,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:58,018 INFO L82 PathProgramCache]: Analyzing trace with hash 2101448545, now seen corresponding path program 1 times [2020-08-22 19:06:58,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:58,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877555740] [2020-08-22 19:06:58,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:58,024 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 19:06:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:06:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:06:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 19:06:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:06:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:06:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 19:06:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 19:06:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:06:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 19:06:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 19:06:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 19:06:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:06:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 19:06:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:58,271 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-08-22 19:06:58,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877555740] [2020-08-22 19:06:58,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:58,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:06:58,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998587392] [2020-08-22 19:06:58,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:06:58,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:58,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:06:58,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:06:58,274 INFO L87 Difference]: Start difference. First operand 277 states and 308 transitions. Second operand 7 states. [2020-08-22 19:06:58,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:06:58,922 INFO L93 Difference]: Finished difference Result 511 states and 568 transitions. [2020-08-22 19:06:58,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 19:06:58,923 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-08-22 19:06:58,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:06:58,930 INFO L225 Difference]: With dead ends: 511 [2020-08-22 19:06:58,930 INFO L226 Difference]: Without dead ends: 286 [2020-08-22 19:06:58,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-08-22 19:06:58,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-08-22 19:06:59,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-08-22 19:06:59,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-08-22 19:06:59,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 314 transitions. [2020-08-22 19:06:59,006 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 314 transitions. Word has length 138 [2020-08-22 19:06:59,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:06:59,009 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 314 transitions. [2020-08-22 19:06:59,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:06:59,010 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 314 transitions. [2020-08-22 19:06:59,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-08-22 19:06:59,019 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:59,019 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:06:59,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:06:59,020 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:59,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:59,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1665265261, now seen corresponding path program 1 times [2020-08-22 19:06:59,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:59,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [900517839] [2020-08-22 19:06:59,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:59,026 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 19:06:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:06:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:06:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 19:06:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:06:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:06:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 19:06:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 19:06:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:06:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 19:06:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 19:06:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 19:06:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:06:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 19:06:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 62 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-08-22 19:06:59,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [900517839] [2020-08-22 19:06:59,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:59,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-08-22 19:06:59,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060274486] [2020-08-22 19:06:59,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-22 19:06:59,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:59,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-22 19:06:59,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2020-08-22 19:06:59,621 INFO L87 Difference]: Start difference. First operand 283 states and 314 transitions. Second operand 22 states. [2020-08-22 19:07:04,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:07:04,656 INFO L93 Difference]: Finished difference Result 715 states and 792 transitions. [2020-08-22 19:07:04,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-08-22 19:07:04,657 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 144 [2020-08-22 19:07:04,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:07:04,661 INFO L225 Difference]: With dead ends: 715 [2020-08-22 19:07:04,661 INFO L226 Difference]: Without dead ends: 388 [2020-08-22 19:07:04,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1623 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1205, Invalid=4647, Unknown=0, NotChecked=0, Total=5852 [2020-08-22 19:07:04,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-08-22 19:07:04,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 267. [2020-08-22 19:07:04,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-08-22 19:07:04,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 292 transitions. [2020-08-22 19:07:04,704 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 292 transitions. Word has length 144 [2020-08-22 19:07:04,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:07:04,704 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 292 transitions. [2020-08-22 19:07:04,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-22 19:07:04,705 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 292 transitions. [2020-08-22 19:07:04,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-08-22 19:07:04,706 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:07:04,707 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:07:04,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 19:07:04,707 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:07:04,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:07:04,708 INFO L82 PathProgramCache]: Analyzing trace with hash 203347141, now seen corresponding path program 1 times [2020-08-22 19:07:04,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:07:04,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385309553] [2020-08-22 19:07:04,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:07:04,712 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:07:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:07:04,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:07:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:07:04,788 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:07:04,850 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 19:07:04,850 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 19:07:04,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 19:07:04,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:07:04 BoogieIcfgContainer [2020-08-22 19:07:04,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:07:04,888 INFO L168 Benchmark]: Toolchain (without parser) took 11963.32 ms. Allocated memory was 138.9 MB in the beginning and 389.0 MB in the end (delta: 250.1 MB). Free memory was 101.2 MB in the beginning and 234.1 MB in the end (delta: -133.0 MB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2020-08-22 19:07:04,889 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 19:07:04,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.50 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 163.3 MB in the end (delta: -62.4 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-08-22 19:07:04,891 INFO L168 Benchmark]: Boogie Preprocessor took 80.84 ms. Allocated memory is still 203.4 MB. Free memory was 163.3 MB in the beginning and 160.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-08-22 19:07:04,892 INFO L168 Benchmark]: RCFGBuilder took 876.92 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 91.6 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 7.1 GB. [2020-08-22 19:07:04,893 INFO L168 Benchmark]: TraceAbstraction took 10349.21 ms. Allocated memory was 203.4 MB in the beginning and 389.0 MB in the end (delta: 185.6 MB). Free memory was 91.0 MB in the beginning and 234.1 MB in the end (delta: -143.1 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2020-08-22 19:07:04,896 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 651.50 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 163.3 MB in the end (delta: -62.4 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.84 ms. Allocated memory is still 203.4 MB. Free memory was 163.3 MB in the beginning and 160.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 876.92 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 91.6 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10349.21 ms. Allocated memory was 203.4 MB in the beginning and 389.0 MB in the end (delta: 185.6 MB). Free memory was 91.0 MB in the beginning and 234.1 MB in the end (delta: -143.1 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 658]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L654] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; [L681] CALL foo() [L670] FCALL ldv_initialize() [L671] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L671] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L671] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L672] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L672] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L672] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L673] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L659] CALL ldv_set_add(m, &mutexes) [L625] CALL, EXPR ldv_is_in_set(new, s) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L625] RET, EXPR ldv_is_in_set(new, s) [L625] COND TRUE !ldv_is_in_set(new, s) [L626] struct ldv_list_element *le; [L627] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L627] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L627] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L628] le->e = new [L629] CALL ldv_list_add(&le->list, s) [L597] EXPR head->next [L597] CALL __ldv_list_add(new, head, head->next) [L585] next->prev = new [L586] new->next = next [L587] new->prev = prev [L588] prev->next = new [L597] RET __ldv_list_add(new, head, head->next) [L629] RET ldv_list_add(&le->list, s) [L659] RET ldv_set_add(m, &mutexes) [L673] RET mutex_lock(m1) [L674] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND TRUE &m->list != (s) [L645] EXPR m->e [L645] COND TRUE m->e == e [L646] return 1; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND TRUE ldv_is_in_set(m, &mutexes) [L658] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 215 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.2s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 667 SDtfs, 2431 SDslu, 597 SDs, 0 SdLazy, 4362 SolverSat, 538 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1753 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=283occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 210 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...