/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/SifaC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 16:49:19,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 16:49:19,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 16:49:19,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-03-31 16:49:19,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 16:49:19,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 16:49:19,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 16:49:19,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 16:49:19,432 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 16:49:19,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 16:49:19,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 16:49:19,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 16:49:19,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 16:49:19,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 16:49:19,434 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 16:49:19,434 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 16:49:19,434 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 16:49:19,434 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 16:49:19,435 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 16:49:19,435 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 16:49:19,435 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 16:49:19,435 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 16:49:19,436 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 16:49:19,436 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 16:49:19,436 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 16:49:19,436 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 16:49:19,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 16:49:19,437 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 16:49:19,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 16:49:19,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 16:49:19,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 16:49:19,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 16:49:19,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 16:49:19,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 16:49:19,437 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 16:49:19,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 16:49:19,438 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 16:49:19,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 16:49:19,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 16:49:19,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 16:49:19,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 16:49:19,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 16:49:19,439 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 16:49:19,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 16:49:19,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 16:49:19,439 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 16:49:19,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 16:49:19,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 16:49:19,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 16:49:19,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-03-31 16:49:19,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 16:49:19,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 16:49:19,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 16:49:19,672 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 16:49:19,673 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 16:49:19,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2023-03-31 16:49:20,819 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 16:49:21,052 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 16:49:21,053 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2023-03-31 16:49:21,065 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4bf5320a/b2ae71d6bab542b186d1e85b2c062502/FLAGce268f83f [2023-03-31 16:49:21,078 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4bf5320a/b2ae71d6bab542b186d1e85b2c062502 [2023-03-31 16:49:21,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 16:49:21,081 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 16:49:21,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 16:49:21,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 16:49:21,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 16:49:21,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 04:49:21" (1/1) ... [2023-03-31 16:49:21,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@212ec999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:49:21, skipping insertion in model container [2023-03-31 16:49:21,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 04:49:21" (1/1) ... [2023-03-31 16:49:21,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 16:49:21,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 16:49:21,384 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2023-03-31 16:49:21,394 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2023-03-31 16:49:21,400 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2023-03-31 16:49:21,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 16:49:21,419 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 16:49:21,483 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2023-03-31 16:49:21,496 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2023-03-31 16:49:21,497 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2023-03-31 16:49:21,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 16:49:21,528 INFO L208 MainTranslator]: Completed translation [2023-03-31 16:49:21,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:49:21 WrapperNode [2023-03-31 16:49:21,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 16:49:21,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 16:49:21,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 16:49:21,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 16:49:21,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:49:21" (1/1) ... [2023-03-31 16:49:21,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:49:21" (1/1) ... [2023-03-31 16:49:21,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:49:21" (1/1) ... [2023-03-31 16:49:21,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:49:21" (1/1) ... [2023-03-31 16:49:21,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:49:21" (1/1) ... [2023-03-31 16:49:21,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:49:21" (1/1) ... [2023-03-31 16:49:21,589 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:49:21" (1/1) ... [2023-03-31 16:49:21,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:49:21" (1/1) ... [2023-03-31 16:49:21,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 16:49:21,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 16:49:21,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 16:49:21,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 16:49:21,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:49:21" (1/1) ... [2023-03-31 16:49:21,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 16:49:21,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 16:49:21,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 16:49:21,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 16:49:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 16:49:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 16:49:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2023-03-31 16:49:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2023-03-31 16:49:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 16:49:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 16:49:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-03-31 16:49:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2023-03-31 16:49:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2023-03-31 16:49:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2023-03-31 16:49:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2023-03-31 16:49:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2023-03-31 16:49:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2023-03-31 16:49:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2023-03-31 16:49:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2023-03-31 16:49:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2023-03-31 16:49:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2023-03-31 16:49:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2023-03-31 16:49:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2023-03-31 16:49:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2023-03-31 16:49:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-03-31 16:49:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-03-31 16:49:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-03-31 16:49:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-03-31 16:49:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-03-31 16:49:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 16:49:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2023-03-31 16:49:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2023-03-31 16:49:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-03-31 16:49:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-03-31 16:49:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-03-31 16:49:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-03-31 16:49:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-03-31 16:49:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-03-31 16:49:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-03-31 16:49:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-03-31 16:49:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-03-31 16:49:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-03-31 16:49:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-03-31 16:49:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-03-31 16:49:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-03-31 16:49:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-03-31 16:49:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-03-31 16:49:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-03-31 16:49:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-03-31 16:49:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-03-31 16:49:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-03-31 16:49:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-03-31 16:49:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-03-31 16:49:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-03-31 16:49:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-03-31 16:49:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-03-31 16:49:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-03-31 16:49:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-03-31 16:49:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-03-31 16:49:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-03-31 16:49:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-03-31 16:49:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-03-31 16:49:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-03-31 16:49:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-03-31 16:49:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-03-31 16:49:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-03-31 16:49:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-03-31 16:49:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-03-31 16:49:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-03-31 16:49:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-03-31 16:49:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-03-31 16:49:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-03-31 16:49:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-03-31 16:49:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-03-31 16:49:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-03-31 16:49:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-03-31 16:49:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-03-31 16:49:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-03-31 16:49:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-03-31 16:49:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-03-31 16:49:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-03-31 16:49:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-03-31 16:49:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 16:49:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-03-31 16:49:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-03-31 16:49:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 16:49:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-03-31 16:49:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-03-31 16:49:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-03-31 16:49:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-03-31 16:49:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 16:49:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-03-31 16:49:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-03-31 16:49:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 16:49:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-03-31 16:49:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-03-31 16:49:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-03-31 16:49:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-03-31 16:49:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-03-31 16:49:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-03-31 16:49:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-03-31 16:49:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-03-31 16:49:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-03-31 16:49:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-03-31 16:49:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-03-31 16:49:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-03-31 16:49:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-03-31 16:49:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-03-31 16:49:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-03-31 16:49:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-03-31 16:49:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-03-31 16:49:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-03-31 16:49:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-03-31 16:49:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-03-31 16:49:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-03-31 16:49:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-03-31 16:49:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-03-31 16:49:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-03-31 16:49:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-03-31 16:49:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-03-31 16:49:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-03-31 16:49:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-03-31 16:49:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-03-31 16:49:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-03-31 16:49:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-03-31 16:49:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-03-31 16:49:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-03-31 16:49:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-03-31 16:49:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-03-31 16:49:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-03-31 16:49:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-03-31 16:49:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-03-31 16:49:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 16:49:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-31 16:49:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-31 16:49:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 16:49:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 16:49:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 16:49:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 16:49:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-03-31 16:49:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 16:49:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2023-03-31 16:49:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2023-03-31 16:49:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 16:49:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2023-03-31 16:49:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2023-03-31 16:49:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2023-03-31 16:49:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 16:49:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2023-03-31 16:49:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2023-03-31 16:49:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2023-03-31 16:49:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2023-03-31 16:49:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2023-03-31 16:49:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2023-03-31 16:49:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2023-03-31 16:49:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2023-03-31 16:49:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 16:49:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-03-31 16:49:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-03-31 16:49:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-03-31 16:49:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-03-31 16:49:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-03-31 16:49:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 16:49:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 16:49:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 16:49:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-03-31 16:49:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 16:49:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 16:49:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 16:49:21,913 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 16:49:21,915 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 16:49:22,262 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 16:49:22,362 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 16:49:22,362 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-03-31 16:49:22,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 04:49:22 BoogieIcfgContainer [2023-03-31 16:49:22,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 16:49:22,365 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 16:49:22,366 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 16:49:22,366 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 16:49:22,367 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 04:49:22" (1/1) ... [2023-03-31 16:49:22,367 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=EqDomain ♦ Max. Parallel Octagon=2 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=POLY_PAC ♦ Max. Parallel Equality=2 ♦ SizeLimitFluid Max. DAG Size=-1 [2023-03-31 16:49:22,417 INFO L159 IcfgInterpreter]: Started Sifa with 3 locations of interest [2023-03-31 16:49:22,418 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 16:49:22,425 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 16:49:22,430 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 16:49:22,431 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 16:49:22,587 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 63 for LOIs [2023-03-31 16:49:22,628 INFO L197 IcfgInterpreter]: Interpreting procedure foo with input of size 63 for LOIs [2023-03-31 16:49:24,159 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 64 for LOIs [2023-03-31 16:49:24,286 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_check_final_state with input of size 81 for LOIs [2023-03-31 16:49:24,385 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_unlock with input of size 33 for LOIs [2023-03-31 16:49:24,417 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 16:49:24,436 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 16:49:24,437 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 16:49:24,438 INFO L158 Benchmark]: Toolchain (without parser) took 3356.16ms. Allocated memory was 252.7MB in the beginning and 304.1MB in the end (delta: 51.4MB). Free memory was 206.5MB in the beginning and 170.0MB in the end (delta: 36.5MB). Peak memory consumption was 88.6MB. Max. memory is 8.0GB. [2023-03-31 16:49:24,438 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 181.4MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 16:49:24,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.61ms. Allocated memory is still 252.7MB. Free memory was 206.5MB in the beginning and 187.3MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-03-31 16:49:24,440 INFO L158 Benchmark]: Boogie Preprocessor took 67.58ms. Allocated memory is still 252.7MB. Free memory was 187.3MB in the beginning and 183.8MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 16:49:24,443 INFO L158 Benchmark]: RCFGBuilder took 766.89ms. Allocated memory is still 252.7MB. Free memory was 183.8MB in the beginning and 216.3MB in the end (delta: -32.5MB). Peak memory consumption was 36.5MB. Max. memory is 8.0GB. [2023-03-31 16:49:24,444 INFO L158 Benchmark]: Sifa took 2071.36ms. Allocated memory was 252.7MB in the beginning and 304.1MB in the end (delta: 51.4MB). Free memory was 216.3MB in the beginning and 170.0MB in the end (delta: 46.3MB). Peak memory consumption was 97.2MB. Max. memory is 8.0GB. [2023-03-31 16:49:24,448 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 181.4MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 446.61ms. Allocated memory is still 252.7MB. Free memory was 206.5MB in the beginning and 187.3MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.58ms. Allocated memory is still 252.7MB. Free memory was 187.3MB in the beginning and 183.8MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 766.89ms. Allocated memory is still 252.7MB. Free memory was 183.8MB in the beginning and 216.3MB in the end (delta: -32.5MB). Peak memory consumption was 36.5MB. Max. memory is 8.0GB. * Sifa took 2071.36ms. Allocated memory was 252.7MB in the beginning and 304.1MB in the end (delta: 51.4MB). Free memory was 216.3MB in the beginning and 170.0MB in the end (delta: 46.3MB). Peak memory consumption was 97.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 2.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 12, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 71, TOOLS_POST_TIME: 0.5s, TOOLS_POST_CALL_APPLICATIONS: 32, TOOLS_POST_CALL_TIME: 0.5s, TOOLS_POST_RETURN_APPLICATIONS: 25, TOOLS_POST_RETURN_TIME: 0.5s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 128, TOOLS_QUANTIFIERELIM_TIME: 1.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 132, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 10, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 4, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 12, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 0.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 4, CALL_SUMMARIZER_APPLICATIONS: 25, CALL_SUMMARIZER_CACHE_MISSES: 15, CALL_SUMMARIZER_OVERALL_TIME: 1.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 1.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 238, DAG_COMPRESSION_RETAINED_NODES: 134 - UnprovableResult [Line: 669]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Over-approximation of reachable states at this location is 126#(and (or (and (= |old(#length)| |#length|) (= |~#mutexes~0.base| 3) (= |#memory_int| |old(#memory_int)|) (= |mutex_lock_#in~m.offset| 0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |~#mutexes~0.offset| 0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (not (= |mutex_lock_#in~m.base| |#StackHeapBarrier|)) (not (= |#StackHeapBarrier| 0)) (not (= |mutex_lock_#in~m.base| 0)) (= |#NULL.offset| 0) (= |old(#valid)| |#valid|) (= |#NULL.base| 0)) (and (= |old(#length)| |#length|) (not (= (select |old(#memory_int)| 1) (select |old(#memory_$Pointer$.offset)| 3))) (= |~#mutexes~0.base| 3) (= (select (select |old(#memory_$Pointer$.offset)| 3) 0) 0) (= |#memory_int| |old(#memory_int)|) (= |mutex_lock_#in~m.offset| 0) (not (= (select |old(#memory_$Pointer$.base)| 3) (select |old(#memory_$Pointer$.offset)| 3))) (not (= (select |old(#memory_int)| 1) (select |old(#memory_$Pointer$.base)| 3))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= (select (select |old(#memory_$Pointer$.base)| 3) 4) 3) (= |~#mutexes~0.offset| 0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (not (= |mutex_lock_#in~m.base| |#StackHeapBarrier|)) (not (= |#StackHeapBarrier| 0)) (= (select (select |old(#memory_int)| 1) 0) 48) (not (= |#memory_$Pointer$.offset| |#memory_$Pointer$.base|)) (not (= |mutex_lock_#in~m.base| 0)) (= (select (select |old(#memory_$Pointer$.base)| 3) 0) 3) (= (select (select |old(#memory_$Pointer$.offset)| 3) 4) 0) (= |#NULL.offset| 0) (= (select (select |old(#memory_int)| 1) 1) 0) (= |old(#valid)| |#valid|) (= |#NULL.base| 0))) (= |mutex_lock_#in~m.base| mutex_lock_~m.base) (= |mutex_lock_#in~m.offset| mutex_lock_~m.offset)). Possible FailurePath: - UnprovableResult [Line: 673]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Over-approximation of reachable states at this location is 142#(and (= |mutex_unlock_#in~m.offset| 0) (not (= |#StackHeapBarrier| |mutex_unlock_#in~m.base|)) (= mutex_unlock_~m.base |mutex_unlock_#in~m.base|) (= |~#mutexes~0.base| 3) (= mutex_unlock_~m.offset 0) (= |#memory_int| |old(#memory_int)|) (not (= 0 |mutex_unlock_#in~m.base|)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |~#mutexes~0.offset| 0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (not (= |#StackHeapBarrier| 0)) (= |#NULL.offset| 0) (= |old(#valid)| |#valid|) (= |#NULL.base| 0)). Possible FailurePath: - UnprovableResult [Line: 677]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Over-approximation of reachable states at this location is 136#(and (exists ((|v_old(#length)_BEFORE_CALL_9| (Array Int Int))) (and (= 12 (select |v_old(#length)_BEFORE_CALL_9| 2)) (= (select |v_old(#length)_BEFORE_CALL_9| 3) 8) (= (select |v_old(#length)_BEFORE_CALL_9| 1) 2))) (or (not (= (select (select |#memory_$Pointer$.base| 3) 0) 3)) (not (= (select (select |#memory_$Pointer$.offset| 3) 0) 0))) (= |~#mutexes~0.base| 3) (= |~#mutexes~0.offset| 0) (exists ((|v_old(#memory_int)_BEFORE_CALL_9| (Array Int (Array Int Int)))) (and (= (select (select |v_old(#memory_int)_BEFORE_CALL_9| 1) 1) 0) (= 48 (select (select |v_old(#memory_int)_BEFORE_CALL_9| 1) 0)))) (exists ((|v_#valid_40| (Array Int Int)) (v_foo_~m2~0.base_BEFORE_CALL_5 Int)) (and (not (= v_foo_~m2~0.base_BEFORE_CALL_5 0)) (= (select |v_#valid_40| v_foo_~m2~0.base_BEFORE_CALL_5) 0) (< v_foo_~m2~0.base_BEFORE_CALL_5 |#StackHeapBarrier|))) (= |#NULL.offset| 0) (exists ((|v_old(#valid)_BEFORE_CALL_9| (Array Int Int))) (and (= (select |v_old(#valid)_BEFORE_CALL_9| 1) 1) (= (select |v_old(#valid)_BEFORE_CALL_9| 2) 1) (= (select |v_old(#valid)_BEFORE_CALL_9| 0) 0) (= (select |v_old(#valid)_BEFORE_CALL_9| 3) 1))) (exists ((v_foo_~m1~0.base_BEFORE_CALL_6 Int) (|v_#valid_41| (Array Int Int))) (and (= (select |v_#valid_41| v_foo_~m1~0.base_BEFORE_CALL_6) 0) (< v_foo_~m1~0.base_BEFORE_CALL_6 |#StackHeapBarrier|) (not (= v_foo_~m1~0.base_BEFORE_CALL_6 0)))) (exists ((|v_old(#memory_$Pointer$.offset)_BEFORE_CALL_9| (Array Int (Array Int Int)))) (and (= (select (select |v_old(#memory_$Pointer$.offset)_BEFORE_CALL_9| 3) 4) 0) (= (select (select |v_old(#memory_$Pointer$.offset)_BEFORE_CALL_9| 3) 0) 0))) (exists ((|v_old(#memory_$Pointer$.base)_BEFORE_CALL_9| (Array Int (Array Int Int)))) (and (= 3 (select (select |v_old(#memory_$Pointer$.base)_BEFORE_CALL_9| 3) 4)) (= (select (select |v_old(#memory_$Pointer$.base)_BEFORE_CALL_9| 3) 0) 3))) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 16:49:24,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...