/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -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 22:20:55,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 22:20:55,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 22:20:55,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 22:20:55,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 22:20:55,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 22:20:55,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 22:20:55,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 22:20:55,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 22:20:55,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 22:20:55,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 22:20:55,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 22:20:55,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 22:20:55,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 22:20:55,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 22:20:55,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 22:20:55,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 22:20:55,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 22:20:55,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 22:20:55,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 22:20:55,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 22:20:55,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 22:20:55,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 22:20:55,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 22:20:55,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 22:20:55,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 22:20:55,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 22:20:55,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 22:20:55,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 22:20:55,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 22:20:55,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 22:20:55,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 22:20:55,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 22:20:55,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 22:20:55,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 22:20:55,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 22:20:55,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 22:20:55,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 22:20:55,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 22:20:55,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 22:20:55,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 22:20:55,968 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 22:20:55,982 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 22:20:55,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 22:20:55,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 22:20:55,985 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 22:20:55,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 22:20:55,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 22:20:55,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 22:20:55,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 22:20:55,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 22:20:55,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 22:20:55,987 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 22:20:55,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 22:20:55,987 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 22:20:55,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 22:20:55,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 22:20:55,988 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 22:20:55,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 22:20:55,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 22:20:55,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 22:20:55,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 22:20:55,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 22:20:55,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 22:20:55,990 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 22:20:56,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 22:20:56,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 22:20:56,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 22:20:56,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 22:20:56,283 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 22:20:56,283 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-08-22 22:20:56,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fed70884/a90b2425a4ce40f0a35e56e77cd8a40b/FLAGa36b2f937 [2020-08-22 22:20:56,939 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 22:20:56,940 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-08-22 22:20:56,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fed70884/a90b2425a4ce40f0a35e56e77cd8a40b/FLAGa36b2f937 [2020-08-22 22:20:57,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fed70884/a90b2425a4ce40f0a35e56e77cd8a40b [2020-08-22 22:20:57,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 22:20:57,170 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 22:20:57,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 22:20:57,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 22:20:57,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 22:20:57,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:20:57" (1/1) ... [2020-08-22 22:20:57,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b0f1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:57, skipping insertion in model container [2020-08-22 22:20:57,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:20:57" (1/1) ... [2020-08-22 22:20:57,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 22:20:57,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 22:20:57,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:20:57,697 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 22:20:57,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:20:57,866 INFO L208 MainTranslator]: Completed translation [2020-08-22 22:20:57,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:57 WrapperNode [2020-08-22 22:20:57,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 22:20:57,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 22:20:57,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 22:20:57,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 22:20:57,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:57" (1/1) ... [2020-08-22 22:20:57,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:57" (1/1) ... [2020-08-22 22:20:57,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:57" (1/1) ... [2020-08-22 22:20:57,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:57" (1/1) ... [2020-08-22 22:20:57,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:57" (1/1) ... [2020-08-22 22:20:57,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:57" (1/1) ... [2020-08-22 22:20:57,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:57" (1/1) ... [2020-08-22 22:20:57,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 22:20:57,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 22:20:57,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 22:20:57,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 22:20:57,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:57" (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 22:20:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 22:20:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 22:20:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-22 22:20:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-22 22:20:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 22:20:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-22 22:20:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-08-22 22:20:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-08-22 22:20:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-08-22 22:20:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-08-22 22:20:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-08-22 22:20:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-08-22 22:20:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-08-22 22:20:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-08-22 22:20:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-08-22 22:20:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-08-22 22:20:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-08-22 22:20:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-08-22 22:20:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-08-22 22:20:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-22 22:20:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-08-22 22:20:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-08-22 22:20:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-22 22:20:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-08-22 22:20:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 22:20:58,013 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-22 22:20:58,013 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-22 22:20:58,014 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-22 22:20:58,014 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-22 22:20:58,014 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-22 22:20:58,014 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-22 22:20:58,014 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-22 22:20:58,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-22 22:20:58,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-22 22:20:58,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-22 22:20:58,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-22 22:20:58,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-22 22:20:58,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-22 22:20:58,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-22 22:20:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-22 22:20:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-22 22:20:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-22 22:20:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-22 22:20:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-22 22:20:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-22 22:20:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-22 22:20:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-22 22:20:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-22 22:20:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-22 22:20:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-22 22:20:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-22 22:20:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-22 22:20:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-22 22:20:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-22 22:20:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-22 22:20:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-22 22:20:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-22 22:20:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-22 22:20:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-22 22:20:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-22 22:20:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-22 22:20:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-22 22:20:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-22 22:20:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-22 22:20:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-22 22:20:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-22 22:20:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-22 22:20:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-22 22:20:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-22 22:20:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-22 22:20:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-22 22:20:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-22 22:20:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-22 22:20:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-22 22:20:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-22 22:20:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-22 22:20:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-22 22:20:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 22:20:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 22:20:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-22 22:20:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 22:20:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-22 22:20:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-22 22:20:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-22 22:20:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-22 22:20:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 22:20:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-22 22:20:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-22 22:20:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 22:20:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-22 22:20:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-22 22:20:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-22 22:20:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-22 22:20:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-22 22:20:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-22 22:20:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-22 22:20:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-22 22:20:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-22 22:20:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-22 22:20:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-22 22:20:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-22 22:20:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-22 22:20:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-22 22:20:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-22 22:20:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-22 22:20:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-22 22:20:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-22 22:20:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-22 22:20:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-22 22:20:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-22 22:20:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-22 22:20:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-22 22:20:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-22 22:20:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-22 22:20:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-22 22:20:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-22 22:20:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-22 22:20:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-22 22:20:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-22 22:20:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-22 22:20:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-22 22:20:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-22 22:20:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-22 22:20:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-22 22:20:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-22 22:20:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-22 22:20:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-22 22:20:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 22:20:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 22:20:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 22:20:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-22 22:20:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 22:20:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-08-22 22:20:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-08-22 22:20:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 22:20:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-08-22 22:20:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-08-22 22:20:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-08-22 22:20:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 22:20:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-08-22 22:20:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-08-22 22:20:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-08-22 22:20:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-08-22 22:20:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-08-22 22:20:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-08-22 22:20:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-08-22 22:20:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-08-22 22:20:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 22:20:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-22 22:20:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-08-22 22:20:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-08-22 22:20:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-22 22:20:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-08-22 22:20:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 22:20:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 22:20:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 22:20:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-22 22:20:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 22:20:58,790 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 22:20:58,791 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-22 22:20:58,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:20:58 BoogieIcfgContainer [2020-08-22 22:20:58,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 22:20:58,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 22:20:58,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 22:20:58,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 22:20:58,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:20:57" (1/3) ... [2020-08-22 22:20:58,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cba3d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:20:58, skipping insertion in model container [2020-08-22 22:20:58,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:57" (2/3) ... [2020-08-22 22:20:58,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cba3d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:20:58, skipping insertion in model container [2020-08-22 22:20:58,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:20:58" (3/3) ... [2020-08-22 22:20:58,820 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-08-22 22:20:58,831 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 22:20:58,839 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-08-22 22:20:58,854 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-08-22 22:20:58,876 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 22:20:58,876 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 22:20:58,876 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 22:20:58,876 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 22:20:58,877 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 22:20:58,877 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 22:20:58,877 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 22:20:58,877 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 22:20:58,896 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-08-22 22:20:58,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-22 22:20:58,909 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:20:58,910 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 22:20:58,910 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:20:58,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:20:58,917 INFO L82 PathProgramCache]: Analyzing trace with hash 899835465, now seen corresponding path program 1 times [2020-08-22 22:20:58,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:20:58,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732788264] [2020-08-22 22:20:58,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:20:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:59,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:20:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:59,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:20:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:59,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 22:20:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:59,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:20:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:59,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:20:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:59,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:20:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:59,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 22:20:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:59,345 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 22:20:59,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732788264] [2020-08-22 22:20:59,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:20:59,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 22:20:59,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312383496] [2020-08-22 22:20:59,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 22:20:59,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:20:59,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 22:20:59,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 22:20:59,374 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 6 states. [2020-08-22 22:21:00,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:21:00,112 INFO L93 Difference]: Finished difference Result 367 states and 421 transitions. [2020-08-22 22:21:00,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 22:21:00,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-08-22 22:21:00,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:21:00,130 INFO L225 Difference]: With dead ends: 367 [2020-08-22 22:21:00,130 INFO L226 Difference]: Without dead ends: 192 [2020-08-22 22:21:00,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:21:00,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-08-22 22:21:00,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2020-08-22 22:21:00,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-08-22 22:21:00,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 184 transitions. [2020-08-22 22:21:00,237 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 184 transitions. Word has length 60 [2020-08-22 22:21:00,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:21:00,238 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 184 transitions. [2020-08-22 22:21:00,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 22:21:00,239 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 184 transitions. [2020-08-22 22:21:00,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-22 22:21:00,242 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:21:00,242 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 22:21:00,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 22:21:00,243 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:21:00,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:21:00,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1713006157, now seen corresponding path program 1 times [2020-08-22 22:21:00,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:21:00,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476972015] [2020-08-22 22:21:00,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:21:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:00,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:21:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:00,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:21:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:00,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 22:21:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:00,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:21:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:00,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:21:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:00,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:21:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:00,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 22:21:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:00,642 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 22:21:00,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476972015] [2020-08-22 22:21:00,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:21:00,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 22:21:00,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569355615] [2020-08-22 22:21:00,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 22:21:00,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:21:00,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 22:21:00,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-08-22 22:21:00,647 INFO L87 Difference]: Start difference. First operand 172 states and 184 transitions. Second operand 11 states. [2020-08-22 22:21:02,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:21:02,396 INFO L93 Difference]: Finished difference Result 494 states and 552 transitions. [2020-08-22 22:21:02,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-22 22:21:02,397 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2020-08-22 22:21:02,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:21:02,403 INFO L225 Difference]: With dead ends: 494 [2020-08-22 22:21:02,403 INFO L226 Difference]: Without dead ends: 343 [2020-08-22 22:21:02,406 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 22:21:02,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-08-22 22:21:02,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 277. [2020-08-22 22:21:02,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-08-22 22:21:02,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 308 transitions. [2020-08-22 22:21:02,476 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 308 transitions. Word has length 63 [2020-08-22 22:21:02,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:21:02,477 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 308 transitions. [2020-08-22 22:21:02,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 22:21:02,477 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 308 transitions. [2020-08-22 22:21:02,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-08-22 22:21:02,489 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:21:02,489 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 22:21:02,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 22:21:02,490 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:21:02,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:21:02,490 INFO L82 PathProgramCache]: Analyzing trace with hash 2101448545, now seen corresponding path program 1 times [2020-08-22 22:21:02,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:21:02,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698553941] [2020-08-22 22:21:02,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:21:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:21:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:21:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 22:21:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:21:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:21:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:21:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 22:21:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 22:21:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 22:21:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 22:21:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:21:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 22:21:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 22:21:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 22:21:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 22:21:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:02,755 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 22:21:02,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698553941] [2020-08-22 22:21:02,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:21:02,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 22:21:02,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518783244] [2020-08-22 22:21:02,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 22:21:02,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:21:02,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 22:21:02,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:21:02,759 INFO L87 Difference]: Start difference. First operand 277 states and 308 transitions. Second operand 7 states. [2020-08-22 22:21:03,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:21:03,416 INFO L93 Difference]: Finished difference Result 511 states and 568 transitions. [2020-08-22 22:21:03,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 22:21:03,417 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-08-22 22:21:03,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:21:03,423 INFO L225 Difference]: With dead ends: 511 [2020-08-22 22:21:03,423 INFO L226 Difference]: Without dead ends: 286 [2020-08-22 22:21:03,425 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 22:21:03,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-08-22 22:21:03,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-08-22 22:21:03,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-08-22 22:21:03,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 314 transitions. [2020-08-22 22:21:03,475 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 314 transitions. Word has length 138 [2020-08-22 22:21:03,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:21:03,476 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 314 transitions. [2020-08-22 22:21:03,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 22:21:03,477 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 314 transitions. [2020-08-22 22:21:03,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-08-22 22:21:03,479 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:21:03,479 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 22:21:03,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 22:21:03,479 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:21:03,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:21:03,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1665265261, now seen corresponding path program 1 times [2020-08-22 22:21:03,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:21:03,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880660608] [2020-08-22 22:21:03,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:21:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:03,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:21:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:03,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:21:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:03,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 22:21:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:03,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:21:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:03,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:21:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:03,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:21:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:03,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 22:21:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:03,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 22:21:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:03,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 22:21:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:03,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 22:21:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:04,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 22:21:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:04,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 22:21:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:04,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 22:21:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:04,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 22:21:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:04,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 22:21:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:21:04,204 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 4 proven. 70 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-08-22 22:21:04,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880660608] [2020-08-22 22:21:04,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:21:04,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-08-22 22:21:04,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813017626] [2020-08-22 22:21:04,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-22 22:21:04,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:21:04,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-22 22:21:04,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2020-08-22 22:21:04,208 INFO L87 Difference]: Start difference. First operand 283 states and 314 transitions. Second operand 22 states. [2020-08-22 22:21:09,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:21:09,434 INFO L93 Difference]: Finished difference Result 715 states and 792 transitions. [2020-08-22 22:21:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-08-22 22:21:09,441 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 144 [2020-08-22 22:21:09,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:21:09,445 INFO L225 Difference]: With dead ends: 715 [2020-08-22 22:21:09,445 INFO L226 Difference]: Without dead ends: 388 [2020-08-22 22:21:09,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1623 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1205, Invalid=4647, Unknown=0, NotChecked=0, Total=5852 [2020-08-22 22:21:09,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-08-22 22:21:09,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 267. [2020-08-22 22:21:09,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-08-22 22:21:09,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 292 transitions. [2020-08-22 22:21:09,495 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 292 transitions. Word has length 144 [2020-08-22 22:21:09,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:21:09,496 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 292 transitions. [2020-08-22 22:21:09,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-22 22:21:09,496 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 292 transitions. [2020-08-22 22:21:09,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-08-22 22:21:09,498 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:21:09,498 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 22:21:09,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 22:21:09,499 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:21:09,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:21:09,499 INFO L82 PathProgramCache]: Analyzing trace with hash 203347141, now seen corresponding path program 1 times [2020-08-22 22:21:09,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:21:09,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603068631] [2020-08-22 22:21:09,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:21:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 22:21:09,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 22:21:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 22:21:09,586 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 22:21:09,645 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 22:21:09,645 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 22:21:09,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 22:21:09,686 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 14 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-08-22 22:21:09,687 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 15 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-08-22 22:21:09,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 10:21:09 BoogieIcfgContainer [2020-08-22 22:21:09,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 22:21:09,732 INFO L168 Benchmark]: Toolchain (without parser) took 12561.68 ms. Allocated memory was 146.8 MB in the beginning and 391.1 MB in the end (delta: 244.3 MB). Free memory was 102.5 MB in the beginning and 199.8 MB in the end (delta: -97.4 MB). Peak memory consumption was 147.0 MB. Max. memory is 7.1 GB. [2020-08-22 22:21:09,733 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 146.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 22:21:09,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.11 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 102.3 MB in the beginning and 166.8 MB in the end (delta: -64.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2020-08-22 22:21:09,735 INFO L168 Benchmark]: Boogie Preprocessor took 77.40 ms. Allocated memory is still 205.5 MB. Free memory was 166.8 MB in the beginning and 163.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-08-22 22:21:09,739 INFO L168 Benchmark]: RCFGBuilder took 851.04 ms. Allocated memory is still 205.5 MB. Free memory was 162.8 MB in the beginning and 94.1 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. [2020-08-22 22:21:09,742 INFO L168 Benchmark]: TraceAbstraction took 10914.96 ms. Allocated memory was 237.0 MB in the beginning and 391.1 MB in the end (delta: 154.1 MB). Free memory was 208.3 MB in the beginning and 199.8 MB in the end (delta: 8.5 MB). Peak memory consumption was 162.6 MB. Max. memory is 7.1 GB. [2020-08-22 22:21:09,747 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 146.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 696.11 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 102.3 MB in the beginning and 166.8 MB in the end (delta: -64.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 77.40 ms. Allocated memory is still 205.5 MB. Free memory was 166.8 MB in the beginning and 163.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 851.04 ms. Allocated memory is still 205.5 MB. Free memory was 162.8 MB in the beginning and 94.1 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10914.96 ms. Allocated memory was 237.0 MB in the beginning and 391.1 MB in the end (delta: 154.1 MB). Free memory was 208.3 MB in the beginning and 199.8 MB in the end (delta: 8.5 MB). Peak memory consumption was 162.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 14 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 15 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 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) }; VAL [\old(mutexes)=null, \old(mutexes)=null, mutexes={2:0}] [L681] CALL foo() VAL [mutexes={2:0}] [L670] FCALL ldv_initialize() VAL [mutexes={2:0}] [L671] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [\old(size)=8, mutexes={2:0}] [L565] void *ptr = malloc(size); VAL [\old(size)=8, malloc(size)={-1:0}, mutexes={2:0}, ptr={-1:0}, size=8] [L566] CALL assume_abort_if_not(ptr!=0) VAL [\old(cond)=1, mutexes={2:0}] [L554] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, mutexes={2:0}] [L566] RET assume_abort_if_not(ptr!=0) VAL [\old(size)=8, malloc(size)={-1:0}, mutexes={2:0}, ptr={-1:0}, size=8] [L567] return ptr; VAL [\old(size)=8, \result={-1:0}, malloc(size)={-1:0}, mutexes={2:0}, ptr={-1:0}, size=8] [L671] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [ldv_successful_malloc(sizeof(struct mutex))={-1:0}, mutexes={2:0}] [L671] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); VAL [ldv_successful_malloc(sizeof(struct mutex))={-1:0}, m1={-1:0}, mutexes={2:0}] [L672] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [\old(size)=8, mutexes={2:0}] [L565] void *ptr = malloc(size); VAL [\old(size)=8, malloc(size)={-2:0}, mutexes={2:0}, ptr={-2:0}, size=8] [L566] CALL assume_abort_if_not(ptr!=0) VAL [\old(cond)=1, mutexes={2:0}] [L554] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, mutexes={2:0}] [L566] RET assume_abort_if_not(ptr!=0) VAL [\old(size)=8, malloc(size)={-2:0}, mutexes={2:0}, ptr={-2:0}, size=8] [L567] return ptr; VAL [\old(size)=8, \result={-2:0}, malloc(size)={-2:0}, mutexes={2:0}, ptr={-2:0}, size=8] [L672] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [ldv_successful_malloc(sizeof(struct mutex))={-2:0}, m1={-1:0}, mutexes={2:0}] [L672] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); VAL [ldv_successful_malloc(sizeof(struct mutex))={-2:0}, m1={-1:0}, m2={-2:0}, mutexes={2:0}] [L673] CALL mutex_lock(m1) VAL [m={-1:0}, mutexes={2:0}] [L658] CALL ldv_is_in_set(m, &mutexes) VAL [e={-1:0}, mutexes={2:0}, s={2:0}] [L643] struct ldv_list_element *m; VAL [e={-1:0}, e={-1:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L644] EXPR (s)->next VAL [(s)->next={2:0}, e={-1:0}, e={-1:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); VAL [(s)->next={2:0}, __mptr={2:0}, e={-1:0}, e={-1:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [__mptr={2:0}, e={-1:0}, e={-1:0}, m={2:-4}, mutexes={2:0}, s={2:0}, s={2:0}] [L644] COND FALSE !(&m->list != (s)) VAL [__mptr={2:0}, e={-1:0}, e={-1:0}, m={2:-4}, mutexes={2:0}, s={2:0}, s={2:0}] [L649] return 0; VAL [\result=0, __mptr={2:0}, e={-1:0}, e={-1:0}, m={2:-4}, mutexes={2:0}, s={2:0}, s={2:0}] [L658] RET ldv_is_in_set(m, &mutexes) VAL [ldv_is_in_set(m, &mutexes)=0, m={-1:0}, m={-1:0}, mutexes={2:0}] [L658] COND FALSE !(ldv_is_in_set(m, &mutexes)) VAL [ldv_is_in_set(m, &mutexes)=0, m={-1:0}, m={-1:0}, mutexes={2:0}] [L659] CALL ldv_set_add(m, &mutexes) VAL [mutexes={2:0}, new={-1:0}, s={2:0}] [L625] CALL, EXPR ldv_is_in_set(new, s) VAL [e={-1:0}, mutexes={2:0}, s={2:0}] [L643] struct ldv_list_element *m; VAL [e={-1:0}, e={-1:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L644] EXPR (s)->next VAL [(s)->next={2:0}, e={-1:0}, e={-1:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); VAL [(s)->next={2:0}, __mptr={2:0}, e={-1:0}, e={-1:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [__mptr={2:0}, e={-1:0}, e={-1:0}, m={2:-4}, mutexes={2:0}, s={2:0}, s={2:0}] [L644] COND FALSE !(&m->list != (s)) VAL [__mptr={2:0}, e={-1:0}, e={-1:0}, m={2:-4}, mutexes={2:0}, s={2:0}, s={2:0}] [L649] return 0; VAL [\result=0, __mptr={2:0}, e={-1:0}, e={-1:0}, m={2:-4}, mutexes={2:0}, s={2:0}, s={2:0}] [L625] RET, EXPR ldv_is_in_set(new, s) VAL [ldv_is_in_set(new, s)=0, mutexes={2:0}, new={-1:0}, new={-1:0}, s={2:0}, s={2:0}] [L625] COND TRUE !ldv_is_in_set(new, s) VAL [ldv_is_in_set(new, s)=0, mutexes={2:0}, new={-1:0}, new={-1:0}, s={2:0}, s={2:0}] [L626] struct ldv_list_element *le; VAL [mutexes={2:0}, new={-1:0}, new={-1:0}, s={2:0}, s={2:0}] [L627] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [\old(size)=12, mutexes={2:0}] [L565] void *ptr = malloc(size); VAL [\old(size)=12, malloc(size)={-3:0}, mutexes={2:0}, ptr={-3:0}, size=12] [L566] CALL assume_abort_if_not(ptr!=0) VAL [\old(cond)=1, mutexes={2:0}] [L554] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, mutexes={2:0}] [L566] RET assume_abort_if_not(ptr!=0) VAL [\old(size)=12, malloc(size)={-3:0}, mutexes={2:0}, ptr={-3:0}, size=12] [L567] return ptr; VAL [\old(size)=12, \result={-3:0}, malloc(size)={-3:0}, mutexes={2:0}, ptr={-3:0}, size=12] [L627] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [ldv_successful_malloc(sizeof(struct ldv_list_element))={-3:0}, mutexes={2:0}, new={-1:0}, new={-1:0}, s={2:0}, s={2:0}] [L627] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [ldv_successful_malloc(sizeof(struct ldv_list_element))={-3:0}, le={-3:0}, mutexes={2:0}, new={-1:0}, new={-1:0}, s={2:0}, s={2:0}] [L628] le->e = new VAL [le={-3:0}, mutexes={2:0}, new={-1:0}, new={-1:0}, s={2:0}, s={2:0}] [L629] CALL ldv_list_add(&le->list, s) VAL [head={2:0}, mutexes={2:0}, new={-3:4}] [L597] EXPR head->next VAL [head={2:0}, head={2:0}, head->next={2:0}, mutexes={2:0}, new={-3:4}, new={-3:4}] [L597] CALL __ldv_list_add(new, head, head->next) VAL [mutexes={2:0}, new={-3:4}, next={2:0}, prev={2:0}] [L585] next->prev = new VAL [mutexes={2:0}, new={-3:4}, new={-3:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}] [L586] new->next = next VAL [mutexes={2:0}, new={-3:4}, new={-3:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}] [L587] new->prev = prev VAL [mutexes={2:0}, new={-3:4}, new={-3:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}] [L588] prev->next = new VAL [mutexes={2:0}, new={-3:4}, new={-3:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}] [L597] RET __ldv_list_add(new, head, head->next) VAL [head={2:0}, head={2:0}, head->next={2:0}, mutexes={2:0}, new={-3:4}, new={-3:4}] [L629] RET ldv_list_add(&le->list, s) VAL [le={-3:0}, mutexes={2:0}, new={-1:0}, new={-1:0}, s={2:0}, s={2:0}] [L659] RET ldv_set_add(m, &mutexes) VAL [m={-1:0}, m={-1:0}, mutexes={2:0}] [L673] RET mutex_lock(m1) VAL [m1={-1:0}, m2={-2:0}, mutexes={2:0}] [L674] CALL mutex_lock(m1) VAL [m={-1:0}, mutexes={2:0}] [L658] CALL ldv_is_in_set(m, &mutexes) VAL [e={-1:0}, mutexes={2:0}, s={2:0}] [L643] struct ldv_list_element *m; VAL [e={-1:0}, e={-1:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L644] EXPR (s)->next VAL [(s)->next={-3:4}, e={-1:0}, e={-1:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); VAL [(s)->next={-3:4}, __mptr={-3:4}, e={-1:0}, e={-1:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [__mptr={-3:4}, e={-1:0}, e={-1:0}, m={-3:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L644] COND TRUE &m->list != (s) VAL [__mptr={-3:4}, e={-1:0}, e={-1:0}, m={-3:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L645] EXPR m->e VAL [__mptr={-3:4}, e={-1:0}, e={-1:0}, m={-3:0}, m->e={-1:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L645] COND TRUE m->e == e VAL [__mptr={-3:4}, e={-1:0}, e={-1:0}, m={-3:0}, m->e={-1:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L646] return 1; VAL [\result=1, __mptr={-3:4}, e={-1:0}, e={-1:0}, m={-3:0}, mutexes={2:0}, s={2:0}, s={2:0}] [L658] RET ldv_is_in_set(m, &mutexes) VAL [ldv_is_in_set(m, &mutexes)=1, m={-1:0}, m={-1:0}, mutexes={2:0}] [L658] COND TRUE ldv_is_in_set(m, &mutexes) VAL [ldv_is_in_set(m, &mutexes)=1, m={-1:0}, m={-1:0}, mutexes={2:0}] [L658] __VERIFIER_error() VAL [m={-1:0}, m={-1:0}, mutexes={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 215 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.7s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 665 SDtfs, 2431 SDslu, 588 SDs, 0 SdLazy, 4362 SolverSat, 538 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1753 ImplicationChecksByTransitivity, 3.6s 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 401 ConstructedInterpolants, 0 QuantifiedInterpolants, 195050 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 210/293 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...