/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml --sifa.abstract.domain OctagonDomain -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.sifa-quantifier-058fc93 [2023-03-22 19:46:45,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-22 19:46:45,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-22 19:46:45,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-22 19:46:45,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-22 19:46:45,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-22 19:46:45,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-22 19:46:45,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-22 19:46:45,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-22 19:46:45,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-22 19:46:45,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-22 19:46:45,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-22 19:46:45,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-22 19:46:45,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-22 19:46:45,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-22 19:46:45,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-22 19:46:45,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-22 19:46:45,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-22 19:46:45,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-22 19:46:45,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-22 19:46:45,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-22 19:46:45,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-22 19:46:45,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-22 19:46:45,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-22 19:46:45,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-22 19:46:45,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-22 19:46:45,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-22 19:46:45,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-22 19:46:45,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-22 19:46:45,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-22 19:46:45,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-22 19:46:45,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-22 19:46:45,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-22 19:46:45,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-22 19:46:45,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-22 19:46:45,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-22 19:46:45,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-22 19:46:45,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-22 19:46:45,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-22 19:46:45,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-22 19:46:45,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-22 19:46:45,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-22 19:46:45,442 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-22 19:46:45,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-22 19:46:45,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-22 19:46:45,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-22 19:46:45,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-22 19:46:45,444 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-22 19:46:45,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-22 19:46:45,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-22 19:46:45,445 INFO L138 SettingsManager]: * Use SBE=true [2023-03-22 19:46:45,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-22 19:46:45,446 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-22 19:46:45,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-22 19:46:45,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-22 19:46:45,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-22 19:46:45,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-22 19:46:45,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-22 19:46:45,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-22 19:46:45,446 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-22 19:46:45,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-22 19:46:45,447 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-22 19:46:45,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-22 19:46:45,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-22 19:46:45,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-22 19:46:45,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-22 19:46:45,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-22 19:46:45,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-22 19:46:45,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-22 19:46:45,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-22 19:46:45,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-22 19:46:45,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-22 19:46:45,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-22 19:46:45,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-22 19:46:45,449 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-22 19:46:45,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-22 19:46:45,449 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-22 19:46:45,449 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-03-22 19:46:45,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-22 19:46:45,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-22 19:46:45,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-22 19:46:45,710 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-22 19:46:45,711 INFO L275 PluginConnector]: CDTParser initialized [2023-03-22 19:46:45,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i [2023-03-22 19:46:46,851 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-22 19:46:47,012 INFO L351 CDTParser]: Found 1 translation units. [2023-03-22 19:46:47,013 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i [2023-03-22 19:46:47,019 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbc7afa8e/1140b581e56948719a154e297b89ee81/FLAGdcd514ce8 [2023-03-22 19:46:47,033 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbc7afa8e/1140b581e56948719a154e297b89ee81 [2023-03-22 19:46:47,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-22 19:46:47,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-22 19:46:47,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-22 19:46:47,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-22 19:46:47,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-22 19:46:47,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.03 07:46:47" (1/1) ... [2023-03-22 19:46:47,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a04fb1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:46:47, skipping insertion in model container [2023-03-22 19:46:47,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.03 07:46:47" (1/1) ... [2023-03-22 19:46:47,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-22 19:46:47,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-22 19:46:47,172 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-regression/mutex_lock_struct.i[295,308] [2023-03-22 19:46:47,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-22 19:46:47,203 INFO L203 MainTranslator]: Completed pre-run [2023-03-22 19:46:47,214 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-regression/mutex_lock_struct.i[295,308] [2023-03-22 19:46:47,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-22 19:46:47,230 INFO L208 MainTranslator]: Completed translation [2023-03-22 19:46:47,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:46:47 WrapperNode [2023-03-22 19:46:47,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-22 19:46:47,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-22 19:46:47,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-22 19:46:47,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-22 19:46:47,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:46:47" (1/1) ... [2023-03-22 19:46:47,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:46:47" (1/1) ... [2023-03-22 19:46:47,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:46:47" (1/1) ... [2023-03-22 19:46:47,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:46:47" (1/1) ... [2023-03-22 19:46:47,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:46:47" (1/1) ... [2023-03-22 19:46:47,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:46:47" (1/1) ... [2023-03-22 19:46:47,265 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:46:47" (1/1) ... [2023-03-22 19:46:47,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:46:47" (1/1) ... [2023-03-22 19:46:47,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-22 19:46:47,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-22 19:46:47,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-22 19:46:47,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-22 19:46:47,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:46:47" (1/1) ... [2023-03-22 19:46:47,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-22 19:46:47,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-22 19:46:47,299 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) [2023-03-22 19:46:47,307 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 [2023-03-22 19:46:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-22 19:46:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-22 19:46:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-22 19:46:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2023-03-22 19:46:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-03-22 19:46:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-03-22 19:46:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-22 19:46:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-22 19:46:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-22 19:46:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-22 19:46:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-22 19:46:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure err [2023-03-22 19:46:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-03-22 19:46:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-22 19:46:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-22 19:46:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-03-22 19:46:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-22 19:46:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-22 19:46:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-22 19:46:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-22 19:46:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-22 19:46:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-22 19:46:47,406 INFO L236 CfgBuilder]: Building ICFG [2023-03-22 19:46:47,408 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-22 19:46:47,529 INFO L277 CfgBuilder]: Performing block encoding [2023-03-22 19:46:47,534 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-22 19:46:47,534 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-22 19:46:47,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.03 07:46:47 BoogieIcfgContainer [2023-03-22 19:46:47,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-22 19:46:47,536 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-22 19:46:47,536 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-22 19:46:47,536 INFO L275 PluginConnector]: Sifa initialized [2023-03-22 19:46:47,537 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.03 07:46:47" (1/1) ... [2023-03-22 19:46:47,538 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=OctagonDomain ♦ 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=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=NONE ♦ Max. Parallel Equality=2 ♦ SizeLimitFluid Max. DAG Size=-1 [2023-03-22 19:46:47,580 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-22 19:46:47,580 INFO L166 IcfgInterpreter]: Building call graph [2023-03-22 19:46:47,584 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-22 19:46:47,591 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-22 19:46:47,592 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-22 19:46:47,766 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 42 for LOIs [2023-03-22 19:46:48,166 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 18 for LOIs [2023-03-22 19:46:48,178 INFO L197 IcfgInterpreter]: Interpreting procedure err with input of size 24 for LOIs [2023-03-22 19:46:48,182 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-22 19:46:48,193 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-22 19:46:48,193 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-22 19:46:48,194 INFO L158 Benchmark]: Toolchain (without parser) took 1157.60ms. Allocated memory is still 285.2MB. Free memory was 236.5MB in the beginning and 197.5MB in the end (delta: 39.0MB). Peak memory consumption was 40.5MB. Max. memory is 8.0GB. [2023-03-22 19:46:48,195 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 181.4MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-22 19:46:48,195 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.80ms. Allocated memory is still 285.2MB. Free memory was 236.0MB in the beginning and 226.1MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-03-22 19:46:48,196 INFO L158 Benchmark]: Boogie Preprocessor took 35.84ms. Allocated memory is still 285.2MB. Free memory was 226.1MB in the beginning and 224.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-22 19:46:48,197 INFO L158 Benchmark]: RCFGBuilder took 266.77ms. Allocated memory is still 285.2MB. Free memory was 224.5MB in the beginning and 214.6MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-03-22 19:46:48,197 INFO L158 Benchmark]: Sifa took 657.49ms. Allocated memory is still 285.2MB. Free memory was 214.6MB in the beginning and 197.5MB in the end (delta: 17.1MB). Peak memory consumption was 18.5MB. Max. memory is 8.0GB. [2023-03-22 19:46:48,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 181.4MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 193.80ms. Allocated memory is still 285.2MB. Free memory was 236.0MB in the beginning and 226.1MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.84ms. Allocated memory is still 285.2MB. Free memory was 226.1MB in the beginning and 224.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 266.77ms. Allocated memory is still 285.2MB. Free memory was 224.5MB in the beginning and 214.6MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Sifa took 657.49ms. Allocated memory is still 285.2MB. Free memory was 214.6MB in the beginning and 197.5MB in the end (delta: 17.1MB). Peak memory consumption was 18.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 0.6s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 2, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 13, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 7, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 3, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 22, TOOLS_QUANTIFIERELIM_TIME: 0.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 26, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 3, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.2s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, 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: 49, DAG_COMPRESSION_RETAINED_NODES: 37 - UnprovableResult [Line: 15]: 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 27#(and (<= 1 |#StackHeapBarrier|) (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (exists ((|v_mutex_lock_#in~a.base_BEFORE_CALL_2| Int) (|v_mutex_lock_#in~a.offset_BEFORE_CALL_2| Int)) (and (<= 0 |v_mutex_lock_#in~a.offset_BEFORE_CALL_2|) (= (select (select |#memory_int| |v_mutex_lock_#in~a.base_BEFORE_CALL_2|) |v_mutex_lock_#in~a.offset_BEFORE_CALL_2|) 1) (<= 1 |v_mutex_lock_#in~a.base_BEFORE_CALL_2|) (<= (+ |#StackHeapBarrier| 1) |v_mutex_lock_#in~a.base_BEFORE_CALL_2|) (<= |v_mutex_lock_#in~a.offset_BEFORE_CALL_2| 0))) (<= 0 |#NULL.offset|)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-22 19:46:48,240 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...