/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 0.1.25-3af5e1f [2020-09-04 22:08:05,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 22:08:05,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 22:08:05,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 22:08:05,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 22:08:05,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 22:08:05,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 22:08:05,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 22:08:05,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 22:08:05,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 22:08:05,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 22:08:05,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 22:08:05,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 22:08:05,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 22:08:05,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 22:08:05,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 22:08:05,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 22:08:05,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 22:08:05,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 22:08:05,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 22:08:05,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 22:08:05,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 22:08:05,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 22:08:05,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 22:08:05,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 22:08:05,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 22:08:05,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 22:08:05,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 22:08:05,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 22:08:05,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 22:08:05,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 22:08:05,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 22:08:05,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 22:08:05,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 22:08:05,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 22:08:05,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 22:08:05,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 22:08:05,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 22:08:05,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 22:08:05,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 22:08:05,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 22:08:05,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 22:08:05,202 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 22:08:05,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 22:08:05,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 22:08:05,204 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 22:08:05,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 22:08:05,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 22:08:05,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 22:08:05,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 22:08:05,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 22:08:05,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 22:08:05,206 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 22:08:05,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 22:08:05,206 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 22:08:05,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 22:08:05,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 22:08:05,207 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 22:08:05,207 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 22:08:05,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 22:08:05,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 22:08:05,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 22:08:05,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 22:08:05,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 22:08:05,208 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 [2020-09-04 22:08:05,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 22:08:05,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 22:08:05,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 22:08:05,677 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 22:08:05,678 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 22:08:05,679 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-04 22:08:05,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cae9de79/f5271a4e364f47c4a2c4f9f81a3c7ddb/FLAG64a8dd00e [2020-09-04 22:08:06,420 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 22:08:06,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-04 22:08:06,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cae9de79/f5271a4e364f47c4a2c4f9f81a3c7ddb/FLAG64a8dd00e [2020-09-04 22:08:06,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cae9de79/f5271a4e364f47c4a2c4f9f81a3c7ddb [2020-09-04 22:08:06,724 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 22:08:06,727 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 22:08:06,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 22:08:06,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 22:08:06,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 22:08:06,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:08:06" (1/1) ... [2020-09-04 22:08:06,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@766fc771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:06, skipping insertion in model container [2020-09-04 22:08:06,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:08:06" (1/1) ... [2020-09-04 22:08:06,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 22:08:06,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 22:08:07,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:08:07,321 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 22:08:07,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:08:07,456 INFO L208 MainTranslator]: Completed translation [2020-09-04 22:08:07,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:07 WrapperNode [2020-09-04 22:08:07,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 22:08:07,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 22:08:07,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 22:08:07,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 22:08:07,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:07" (1/1) ... [2020-09-04 22:08:07,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:07" (1/1) ... [2020-09-04 22:08:07,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:07" (1/1) ... [2020-09-04 22:08:07,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:07" (1/1) ... [2020-09-04 22:08:07,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:07" (1/1) ... [2020-09-04 22:08:07,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:07" (1/1) ... [2020-09-04 22:08:07,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:07" (1/1) ... [2020-09-04 22:08:07,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 22:08:07,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 22:08:07,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 22:08:07,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 22:08:07,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 22:08:07,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 22:08:07,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 22:08:07,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-04 22:08:07,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-04 22:08:07,618 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 22:08:07,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-04 22:08:07,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-04 22:08:07,618 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-04 22:08:07,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-04 22:08:07,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-04 22:08:07,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-04 22:08:07,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-04 22:08:07,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-04 22:08:07,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-04 22:08:07,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-04 22:08:07,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-04 22:08:07,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-04 22:08:07,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-04 22:08:07,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-04 22:08:07,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-04 22:08:07,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-04 22:08:07,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-04 22:08:07,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-04 22:08:07,622 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-04 22:08:07,622 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 22:08:07,622 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-04 22:08:07,622 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-04 22:08:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-04 22:08:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-04 22:08:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-04 22:08:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-04 22:08:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-04 22:08:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-04 22:08:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-04 22:08:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-04 22:08:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-04 22:08:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-04 22:08:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-04 22:08:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-04 22:08:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-04 22:08:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-04 22:08:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-04 22:08:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-04 22:08:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-04 22:08:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-04 22:08:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-04 22:08:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-04 22:08:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-04 22:08:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-04 22:08:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-04 22:08:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-04 22:08:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-04 22:08:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-04 22:08:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-04 22:08:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-04 22:08:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-04 22:08:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-04 22:08:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-04 22:08:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-04 22:08:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-04 22:08:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-04 22:08:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-04 22:08:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-04 22:08:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-04 22:08:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-04 22:08:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-04 22:08:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-04 22:08:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-04 22:08:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-04 22:08:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-04 22:08:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-04 22:08:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-04 22:08:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-04 22:08:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-04 22:08:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-04 22:08:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-04 22:08:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-04 22:08:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 22:08:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-04 22:08:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-04 22:08:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 22:08:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-04 22:08:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-04 22:08:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-04 22:08:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-04 22:08:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 22:08:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-04 22:08:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-04 22:08:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 22:08:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-04 22:08:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-04 22:08:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-04 22:08:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-04 22:08:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-04 22:08:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-04 22:08:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-04 22:08:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-04 22:08:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-04 22:08:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-04 22:08:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-04 22:08:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-04 22:08:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-04 22:08:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-04 22:08:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-04 22:08:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-04 22:08:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-04 22:08:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-04 22:08:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-04 22:08:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-04 22:08:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-04 22:08:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-04 22:08:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-04 22:08:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-04 22:08:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-04 22:08:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-04 22:08:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-04 22:08:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-04 22:08:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-04 22:08:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-04 22:08:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-04 22:08:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-04 22:08:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-04 22:08:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-04 22:08:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-04 22:08:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-04 22:08:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-04 22:08:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-04 22:08:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 22:08:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 22:08:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 22:08:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-04 22:08:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 22:08:07,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-04 22:08:07,640 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-04 22:08:07,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 22:08:07,640 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-04 22:08:07,640 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-04 22:08:07,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-04 22:08:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 22:08:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-04 22:08:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-04 22:08:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-04 22:08:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-04 22:08:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-04 22:08:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-04 22:08:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-04 22:08:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-04 22:08:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 22:08:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-04 22:08:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-04 22:08:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-04 22:08:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-04 22:08:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-04 22:08:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 22:08:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 22:08:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 22:08:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-04 22:08:07,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 22:08:08,435 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 22:08:08,435 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-04 22:08:08,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:08:08 BoogieIcfgContainer [2020-09-04 22:08:08,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 22:08:08,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 22:08:08,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 22:08:08,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 22:08:08,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 10:08:06" (1/3) ... [2020-09-04 22:08:08,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13daf6e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:08:08, skipping insertion in model container [2020-09-04 22:08:08,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:07" (2/3) ... [2020-09-04 22:08:08,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13daf6e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:08:08, skipping insertion in model container [2020-09-04 22:08:08,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:08:08" (3/3) ... [2020-09-04 22:08:08,452 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-09-04 22:08:08,464 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 22:08:08,498 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-04 22:08:08,523 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-04 22:08:08,552 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 22:08:08,553 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 22:08:08,553 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 22:08:08,553 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 22:08:08,553 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 22:08:08,553 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 22:08:08,553 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 22:08:08,554 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 22:08:08,576 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-09-04 22:08:08,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-04 22:08:08,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:08:08,592 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] [2020-09-04 22:08:08,592 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:08:08,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:08:08,598 INFO L82 PathProgramCache]: Analyzing trace with hash 899835465, now seen corresponding path program 1 times [2020-09-04 22:08:08,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:08:08,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863579923] [2020-09-04 22:08:08,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:08:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:08,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:08:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:08,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-04 22:08:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:08,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-04 22:08:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:08,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 22:08:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:08,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-04 22:08:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:08,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 22:08:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:09,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-04 22:08:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:09,060 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-04 22:08:09,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863579923] [2020-09-04 22:08:09,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:08:09,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 22:08:09,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950247267] [2020-09-04 22:08:09,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 22:08:09,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:08:09,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 22:08:09,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-04 22:08:09,095 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 6 states. [2020-09-04 22:08:09,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:08:09,948 INFO L93 Difference]: Finished difference Result 367 states and 421 transitions. [2020-09-04 22:08:09,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 22:08:09,950 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-04 22:08:09,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:08:09,969 INFO L225 Difference]: With dead ends: 367 [2020-09-04 22:08:09,970 INFO L226 Difference]: Without dead ends: 192 [2020-09-04 22:08:09,977 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 [2020-09-04 22:08:10,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-04 22:08:10,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2020-09-04 22:08:10,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-04 22:08:10,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 184 transitions. [2020-09-04 22:08:10,096 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 184 transitions. Word has length 60 [2020-09-04 22:08:10,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:08:10,097 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 184 transitions. [2020-09-04 22:08:10,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 22:08:10,097 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 184 transitions. [2020-09-04 22:08:10,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-04 22:08:10,101 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:08:10,101 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] [2020-09-04 22:08:10,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 22:08:10,102 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:08:10,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:08:10,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1713006157, now seen corresponding path program 1 times [2020-09-04 22:08:10,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:08:10,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25224460] [2020-09-04 22:08:10,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:08:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:10,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:08:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:10,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-04 22:08:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:10,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-04 22:08:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:10,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 22:08:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:10,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-04 22:08:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:10,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 22:08:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:10,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-04 22:08:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:10,506 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-04 22:08:10,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25224460] [2020-09-04 22:08:10,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:08:10,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-04 22:08:10,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168498374] [2020-09-04 22:08:10,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 22:08:10,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:08:10,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 22:08:10,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-04 22:08:10,511 INFO L87 Difference]: Start difference. First operand 172 states and 184 transitions. Second operand 11 states. [2020-09-04 22:08:12,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:08:12,584 INFO L93 Difference]: Finished difference Result 494 states and 552 transitions. [2020-09-04 22:08:12,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-04 22:08:12,584 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2020-09-04 22:08:12,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:08:12,590 INFO L225 Difference]: With dead ends: 494 [2020-09-04 22:08:12,590 INFO L226 Difference]: Without dead ends: 343 [2020-09-04 22:08:12,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2020-09-04 22:08:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-04 22:08:12,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 277. [2020-09-04 22:08:12,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-04 22:08:12,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 308 transitions. [2020-09-04 22:08:12,650 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 308 transitions. Word has length 63 [2020-09-04 22:08:12,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:08:12,651 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 308 transitions. [2020-09-04 22:08:12,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 22:08:12,651 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 308 transitions. [2020-09-04 22:08:12,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-04 22:08:12,656 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:08:12,657 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] [2020-09-04 22:08:12,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 22:08:12,657 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:08:12,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:08:12,658 INFO L82 PathProgramCache]: Analyzing trace with hash 2101448545, now seen corresponding path program 1 times [2020-09-04 22:08:12,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:08:12,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343702172] [2020-09-04 22:08:12,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:08:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:08:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-04 22:08:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-04 22:08:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 22:08:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-04 22:08:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 22:08:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-04 22:08:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 22:08:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 22:08:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 22:08:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-04 22:08:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 22:08:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 22:08:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 22:08:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 22:08:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:12,962 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-09-04 22:08:12,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343702172] [2020-09-04 22:08:12,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-04 22:08:12,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-04 22:08:12,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234344941] [2020-09-04 22:08:12,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 22:08:12,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:08:12,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 22:08:12,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-04 22:08:12,965 INFO L87 Difference]: Start difference. First operand 277 states and 308 transitions. Second operand 7 states. [2020-09-04 22:08:13,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:08:13,741 INFO L93 Difference]: Finished difference Result 511 states and 568 transitions. [2020-09-04 22:08:13,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 22:08:13,741 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-09-04 22:08:13,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:08:13,748 INFO L225 Difference]: With dead ends: 511 [2020-09-04 22:08:13,748 INFO L226 Difference]: Without dead ends: 286 [2020-09-04 22:08:13,751 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 [2020-09-04 22:08:13,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-04 22:08:13,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-09-04 22:08:13,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-04 22:08:13,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 314 transitions. [2020-09-04 22:08:13,822 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 314 transitions. Word has length 138 [2020-09-04 22:08:13,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:08:13,826 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 314 transitions. [2020-09-04 22:08:13,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 22:08:13,826 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 314 transitions. [2020-09-04 22:08:13,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-04 22:08:13,838 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:08:13,838 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] [2020-09-04 22:08:13,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 22:08:13,839 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:08:13,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:08:13,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1665265261, now seen corresponding path program 1 times [2020-09-04 22:08:13,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:08:13,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120821292] [2020-09-04 22:08:13,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:08:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:13,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:08:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-04 22:08:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-04 22:08:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 22:08:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-04 22:08:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 22:08:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-04 22:08:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 22:08:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 22:08:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 22:08:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-04 22:08:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 22:08:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 22:08:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 22:08:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 22:08:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:14,632 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 4 proven. 70 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-04 22:08:14,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120821292] [2020-09-04 22:08:14,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-04 22:08:14,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-04 22:08:14,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019280004] [2020-09-04 22:08:14,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-04 22:08:14,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:08:14,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-04 22:08:14,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2020-09-04 22:08:14,636 INFO L87 Difference]: Start difference. First operand 283 states and 314 transitions. Second operand 22 states. [2020-09-04 22:08:15,843 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-09-04 22:08:20,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:08:20,601 INFO L93 Difference]: Finished difference Result 715 states and 792 transitions. [2020-09-04 22:08:20,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-09-04 22:08:20,602 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 144 [2020-09-04 22:08:20,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:08:20,607 INFO L225 Difference]: With dead ends: 715 [2020-09-04 22:08:20,607 INFO L226 Difference]: Without dead ends: 388 [2020-09-04 22:08:20,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1623 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1205, Invalid=4647, Unknown=0, NotChecked=0, Total=5852 [2020-09-04 22:08:20,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-09-04 22:08:20,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 267. [2020-09-04 22:08:20,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-09-04 22:08:20,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 292 transitions. [2020-09-04 22:08:20,654 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 292 transitions. Word has length 144 [2020-09-04 22:08:20,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:08:20,655 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 292 transitions. [2020-09-04 22:08:20,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-04 22:08:20,655 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 292 transitions. [2020-09-04 22:08:20,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-04 22:08:20,657 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:08:20,657 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] [2020-09-04 22:08:20,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 22:08:20,658 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:08:20,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:08:20,658 INFO L82 PathProgramCache]: Analyzing trace with hash 203347141, now seen corresponding path program 1 times [2020-09-04 22:08:20,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:08:20,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613808232] [2020-09-04 22:08:20,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:08:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 22:08:20,710 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 22:08:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 22:08:20,755 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 22:08:20,813 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 22:08:20,813 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 22:08:20,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 22:08:20,868 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# [2020-09-04 22:08:20,869 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# [2020-09-04 22:08:20,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 10:08:20 BoogieIcfgContainer [2020-09-04 22:08:20,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 22:08:20,935 INFO L168 Benchmark]: Toolchain (without parser) took 14208.78 ms. Allocated memory was 138.4 MB in the beginning and 377.0 MB in the end (delta: 238.6 MB). Free memory was 101.1 MB in the beginning and 98.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 241.4 MB. Max. memory is 7.1 GB. [2020-09-04 22:08:20,936 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-04 22:08:20,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.63 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 163.1 MB in the end (delta: -62.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-09-04 22:08:20,938 INFO L168 Benchmark]: Boogie Preprocessor took 79.74 ms. Allocated memory is still 202.4 MB. Free memory was 163.1 MB in the beginning and 159.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-04 22:08:20,939 INFO L168 Benchmark]: RCFGBuilder took 904.76 ms. Allocated memory is still 202.4 MB. Free memory was 159.0 MB in the beginning and 90.4 MB in the end (delta: 68.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 7.1 GB. [2020-09-04 22:08:20,940 INFO L168 Benchmark]: TraceAbstraction took 12489.35 ms. Allocated memory was 202.4 MB in the beginning and 377.0 MB in the end (delta: 174.6 MB). Free memory was 90.4 MB in the beginning and 98.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 166.8 MB. Max. memory is 7.1 GB. [2020-09-04 22:08:20,944 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 729.63 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 163.1 MB in the end (delta: -62.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.74 ms. Allocated memory is still 202.4 MB. Free memory was 163.1 MB in the beginning and 159.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 904.76 ms. Allocated memory is still 202.4 MB. Free memory was 159.0 MB in the beginning and 90.4 MB in the end (delta: 68.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12489.35 ms. Allocated memory was 202.4 MB in the beginning and 377.0 MB in the end (delta: 174.6 MB). Free memory was 90.4 MB in the beginning and 98.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 166.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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# - 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# * 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: 12.2s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 9.7s, 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, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1753 ImplicationChecksByTransitivity, 4.1s 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, 0.2s SatisfiabilityAnalysisTime, 1.5s 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...