./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 21:27:46,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 21:27:46,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 21:27:46,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 21:27:46,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 21:27:46,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 21:27:46,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 21:27:46,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 21:27:46,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 21:27:46,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 21:27:46,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 21:27:46,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 21:27:46,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 21:27:46,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 21:27:46,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 21:27:46,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 21:27:46,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 21:27:46,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 21:27:46,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 21:27:46,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 21:27:46,407 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 21:27:46,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 21:27:46,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 21:27:46,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 21:27:46,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 21:27:46,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 21:27:46,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 21:27:46,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 21:27:46,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 21:27:46,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 21:27:46,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 21:27:46,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 21:27:46,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 21:27:46,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 21:27:46,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 21:27:46,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 21:27:46,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 21:27:46,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 21:27:46,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 21:27:46,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 21:27:46,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 21:27:46,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 21:27:46,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 21:27:46,449 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 21:27:46,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 21:27:46,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 21:27:46,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 21:27:46,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 21:27:46,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 21:27:46,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 21:27:46,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 21:27:46,454 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 21:27:46,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 21:27:46,455 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 21:27:46,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 21:27:46,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 21:27:46,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 21:27:46,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 21:27:46,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 21:27:46,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 21:27:46,456 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 21:27:46,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 21:27:46,457 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 21:27:46,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 21:27:46,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 21:27:46,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 21:27:46,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 21:27:46,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:27:46,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 21:27:46,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 21:27:46,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 21:27:46,459 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 21:27:46,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 21:27:46,460 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 21:27:46,460 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 21:27:46,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 21:27:46,460 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2022-07-22 21:27:46,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 21:27:46,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 21:27:46,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 21:27:46,685 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 21:27:46,686 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 21:27:46,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-07-22 21:27:46,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a1bf9c44/94ea6f57953041288c63801946375b25/FLAG3d3669f56 [2022-07-22 21:27:47,253 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 21:27:47,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-07-22 21:27:47,276 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a1bf9c44/94ea6f57953041288c63801946375b25/FLAG3d3669f56 [2022-07-22 21:27:47,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a1bf9c44/94ea6f57953041288c63801946375b25 [2022-07-22 21:27:47,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 21:27:47,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 21:27:47,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 21:27:47,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 21:27:47,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 21:27:47,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:27:47" (1/1) ... [2022-07-22 21:27:47,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2b110a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:47, skipping insertion in model container [2022-07-22 21:27:47,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:27:47" (1/1) ... [2022-07-22 21:27:47,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 21:27:47,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 21:27:47,969 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-22 21:27:48,345 WARN L230 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-races/race-2_3-container_of.i[75002,75015] [2022-07-22 21:27:48,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:27:48,390 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 21:27:48,399 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-22 21:27:48,419 WARN L230 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-races/race-2_3-container_of.i[75002,75015] [2022-07-22 21:27:48,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:27:48,537 INFO L208 MainTranslator]: Completed translation [2022-07-22 21:27:48,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:48 WrapperNode [2022-07-22 21:27:48,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 21:27:48,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 21:27:48,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 21:27:48,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 21:27:48,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:48" (1/1) ... [2022-07-22 21:27:48,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:48" (1/1) ... [2022-07-22 21:27:48,591 INFO L137 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-07-22 21:27:48,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 21:27:48,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 21:27:48,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 21:27:48,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 21:27:48,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:48" (1/1) ... [2022-07-22 21:27:48,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:48" (1/1) ... [2022-07-22 21:27:48,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:48" (1/1) ... [2022-07-22 21:27:48,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:48" (1/1) ... [2022-07-22 21:27:48,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:48" (1/1) ... [2022-07-22 21:27:48,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:48" (1/1) ... [2022-07-22 21:27:48,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:48" (1/1) ... [2022-07-22 21:27:48,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 21:27:48,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 21:27:48,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 21:27:48,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 21:27:48,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:48" (1/1) ... [2022-07-22 21:27:48,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:27:48,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:27:48,670 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) [2022-07-22 21:27:48,679 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 [2022-07-22 21:27:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 21:27:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 21:27:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 21:27:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 21:27:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-22 21:27:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 21:27:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 21:27:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 21:27:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 21:27:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-07-22 21:27:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-07-22 21:27:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 21:27:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 21:27:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 21:27:48,703 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-22 21:27:48,972 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 21:27:48,973 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 21:27:49,153 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 21:27:49,193 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 21:27:49,194 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 21:27:49,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:27:49 BoogieIcfgContainer [2022-07-22 21:27:49,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 21:27:49,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 21:27:49,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 21:27:49,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 21:27:49,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 09:27:47" (1/3) ... [2022-07-22 21:27:49,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36fb00ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:27:49, skipping insertion in model container [2022-07-22 21:27:49,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:48" (2/3) ... [2022-07-22 21:27:49,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36fb00ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:27:49, skipping insertion in model container [2022-07-22 21:27:49,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:27:49" (3/3) ... [2022-07-22 21:27:49,204 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-07-22 21:27:49,209 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-22 21:27:49,217 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 21:27:49,217 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-22 21:27:49,218 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-22 21:27:49,278 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-22 21:27:49,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 175 places, 175 transitions, 366 flow [2022-07-22 21:27:49,425 INFO L129 PetriNetUnfolder]: 8/220 cut-off events. [2022-07-22 21:27:49,425 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 21:27:49,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 220 events. 8/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 366 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2022-07-22 21:27:49,430 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 175 transitions, 366 flow [2022-07-22 21:27:49,439 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 161 transitions, 334 flow [2022-07-22 21:27:49,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:27:49,457 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5db39e2b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@13c4d047 [2022-07-22 21:27:49,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-22 21:27:49,479 INFO L129 PetriNetUnfolder]: 0/94 cut-off events. [2022-07-22 21:27:49,483 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 21:27:49,483 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:49,485 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:27:49,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-22 21:27:49,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:49,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1804113549, now seen corresponding path program 1 times [2022-07-22 21:27:49,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:49,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567872897] [2022-07-22 21:27:49,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:49,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:49,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:49,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:49,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567872897] [2022-07-22 21:27:49,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567872897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:49,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:49,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 21:27:49,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627149373] [2022-07-22 21:27:49,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:49,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 21:27:49,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:49,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 21:27:49,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 21:27:49,989 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 175 [2022-07-22 21:27:49,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 161 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:49,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:49,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 175 [2022-07-22 21:27:49,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:27:50,345 INFO L129 PetriNetUnfolder]: 426/1382 cut-off events. [2022-07-22 21:27:50,346 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-07-22 21:27:50,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2155 conditions, 1382 events. 426/1382 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9243 event pairs, 174 based on Foata normal form. 8/1273 useless extension candidates. Maximal degree in co-relation 1935. Up to 587 conditions per place. [2022-07-22 21:27:50,361 INFO L132 encePairwiseOnDemand]: 163/175 looper letters, 44 selfloop transitions, 8 changer transitions 0/169 dead transitions. [2022-07-22 21:27:50,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 169 transitions, 457 flow [2022-07-22 21:27:50,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 21:27:50,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-22 21:27:50,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 443 transitions. [2022-07-22 21:27:50,379 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8438095238095238 [2022-07-22 21:27:50,380 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 443 transitions. [2022-07-22 21:27:50,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 443 transitions. [2022-07-22 21:27:50,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:27:50,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 443 transitions. [2022-07-22 21:27:50,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:50,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:50,398 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:50,400 INFO L186 Difference]: Start difference. First operand has 163 places, 161 transitions, 334 flow. Second operand 3 states and 443 transitions. [2022-07-22 21:27:50,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 169 transitions, 457 flow [2022-07-22 21:27:50,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 169 transitions, 447 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-22 21:27:50,410 INFO L242 Difference]: Finished difference. Result has 160 places, 162 transitions, 376 flow [2022-07-22 21:27:50,412 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=160, PETRI_TRANSITIONS=162} [2022-07-22 21:27:50,415 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, -3 predicate places. [2022-07-22 21:27:50,415 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 162 transitions, 376 flow [2022-07-22 21:27:50,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:50,417 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:50,417 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:27:50,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 21:27:50,418 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-22 21:27:50,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:50,418 INFO L85 PathProgramCache]: Analyzing trace with hash 92945538, now seen corresponding path program 1 times [2022-07-22 21:27:50,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:50,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851170026] [2022-07-22 21:27:50,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:50,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:50,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:50,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:50,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851170026] [2022-07-22 21:27:50,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851170026] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:50,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:50,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 21:27:50,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278138159] [2022-07-22 21:27:50,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:50,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 21:27:50,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:50,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 21:27:50,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 21:27:50,579 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 175 [2022-07-22 21:27:50,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 162 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:50,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:50,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 175 [2022-07-22 21:27:50,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:27:50,896 INFO L129 PetriNetUnfolder]: 541/1797 cut-off events. [2022-07-22 21:27:50,896 INFO L130 PetriNetUnfolder]: For 512/637 co-relation queries the response was YES. [2022-07-22 21:27:50,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3432 conditions, 1797 events. 541/1797 cut-off events. For 512/637 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 13167 event pairs, 207 based on Foata normal form. 7/1690 useless extension candidates. Maximal degree in co-relation 534. Up to 716 conditions per place. [2022-07-22 21:27:50,910 INFO L132 encePairwiseOnDemand]: 166/175 looper letters, 48 selfloop transitions, 14 changer transitions 0/179 dead transitions. [2022-07-22 21:27:50,910 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 179 transitions, 569 flow [2022-07-22 21:27:50,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 21:27:50,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-22 21:27:50,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 439 transitions. [2022-07-22 21:27:50,912 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8361904761904762 [2022-07-22 21:27:50,912 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 439 transitions. [2022-07-22 21:27:50,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 439 transitions. [2022-07-22 21:27:50,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:27:50,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 439 transitions. [2022-07-22 21:27:50,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:50,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:50,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:50,916 INFO L186 Difference]: Start difference. First operand has 160 places, 162 transitions, 376 flow. Second operand 3 states and 439 transitions. [2022-07-22 21:27:50,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 179 transitions, 569 flow [2022-07-22 21:27:50,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 179 transitions, 543 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-22 21:27:50,928 INFO L242 Difference]: Finished difference. Result has 162 places, 173 transitions, 482 flow [2022-07-22 21:27:50,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=162, PETRI_TRANSITIONS=173} [2022-07-22 21:27:50,929 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, -1 predicate places. [2022-07-22 21:27:50,929 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 173 transitions, 482 flow [2022-07-22 21:27:50,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:50,930 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:50,930 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:27:50,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 21:27:50,931 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-22 21:27:50,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:50,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1986640255, now seen corresponding path program 1 times [2022-07-22 21:27:50,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:50,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514846166] [2022-07-22 21:27:50,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:50,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:51,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:51,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:51,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514846166] [2022-07-22 21:27:51,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514846166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:51,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:51,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 21:27:51,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386021597] [2022-07-22 21:27:51,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:51,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 21:27:51,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:51,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 21:27:51,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 21:27:51,093 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2022-07-22 21:27:51,094 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 173 transitions, 482 flow. Second operand has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:51,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:51,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2022-07-22 21:27:51,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:27:51,836 INFO L129 PetriNetUnfolder]: 1272/3157 cut-off events. [2022-07-22 21:27:51,836 INFO L130 PetriNetUnfolder]: For 2390/2839 co-relation queries the response was YES. [2022-07-22 21:27:51,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7619 conditions, 3157 events. 1272/3157 cut-off events. For 2390/2839 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 23065 event pairs, 223 based on Foata normal form. 11/3062 useless extension candidates. Maximal degree in co-relation 1069. Up to 929 conditions per place. [2022-07-22 21:27:51,863 INFO L132 encePairwiseOnDemand]: 154/175 looper letters, 119 selfloop transitions, 51 changer transitions 2/269 dead transitions. [2022-07-22 21:27:51,864 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 269 transitions, 1234 flow [2022-07-22 21:27:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 21:27:51,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-22 21:27:51,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1522 transitions. [2022-07-22 21:27:51,868 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.669010989010989 [2022-07-22 21:27:51,869 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1522 transitions. [2022-07-22 21:27:51,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1522 transitions. [2022-07-22 21:27:51,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:27:51,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1522 transitions. [2022-07-22 21:27:51,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.07692307692308) internal successors, (1522), 13 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:51,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 175.0) internal successors, (2450), 14 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:51,878 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 175.0) internal successors, (2450), 14 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:51,879 INFO L186 Difference]: Start difference. First operand has 162 places, 173 transitions, 482 flow. Second operand 13 states and 1522 transitions. [2022-07-22 21:27:51,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 269 transitions, 1234 flow [2022-07-22 21:27:51,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 269 transitions, 1190 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-22 21:27:51,889 INFO L242 Difference]: Finished difference. Result has 179 places, 213 transitions, 847 flow [2022-07-22 21:27:51,890 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=847, PETRI_PLACES=179, PETRI_TRANSITIONS=213} [2022-07-22 21:27:51,892 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 16 predicate places. [2022-07-22 21:27:51,892 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 213 transitions, 847 flow [2022-07-22 21:27:51,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:51,893 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:51,893 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:27:51,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 21:27:51,893 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-22 21:27:51,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:51,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1192190615, now seen corresponding path program 1 times [2022-07-22 21:27:51,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:51,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181650117] [2022-07-22 21:27:51,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:51,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:27:51,960 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 21:27:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:27:52,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 21:27:52,015 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 21:27:52,016 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-07-22 21:27:52,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-07-22 21:27:52,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-07-22 21:27:52,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-07-22 21:27:52,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-07-22 21:27:52,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-07-22 21:27:52,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-07-22 21:27:52,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-07-22 21:27:52,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 21:27:52,020 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-22 21:27:52,025 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-22 21:27:52,025 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 21:27:52,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 09:27:52 BasicIcfg [2022-07-22 21:27:52,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 21:27:52,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 21:27:52,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 21:27:52,077 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 21:27:52,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:27:49" (3/4) ... [2022-07-22 21:27:52,079 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 21:27:52,129 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 21:27:52,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 21:27:52,130 INFO L158 Benchmark]: Toolchain (without parser) took 4366.57ms. Allocated memory was 100.7MB in the beginning and 186.6MB in the end (delta: 86.0MB). Free memory was 62.6MB in the beginning and 66.8MB in the end (delta: -4.2MB). Peak memory consumption was 80.2MB. Max. memory is 16.1GB. [2022-07-22 21:27:52,131 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 100.7MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 21:27:52,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 772.47ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 62.4MB in the beginning and 85.6MB in the end (delta: -23.1MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2022-07-22 21:27:52,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.12ms. Allocated memory is still 121.6MB. Free memory was 85.6MB in the beginning and 82.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 21:27:52,132 INFO L158 Benchmark]: Boogie Preprocessor took 44.94ms. Allocated memory is still 121.6MB. Free memory was 82.0MB in the beginning and 79.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 21:27:52,132 INFO L158 Benchmark]: RCFGBuilder took 558.48ms. Allocated memory is still 121.6MB. Free memory was 79.3MB in the beginning and 56.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-22 21:27:52,133 INFO L158 Benchmark]: TraceAbstraction took 2877.74ms. Allocated memory was 121.6MB in the beginning and 186.6MB in the end (delta: 65.0MB). Free memory was 55.5MB in the beginning and 76.2MB in the end (delta: -20.7MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2022-07-22 21:27:52,133 INFO L158 Benchmark]: Witness Printer took 53.18ms. Allocated memory is still 186.6MB. Free memory was 76.2MB in the beginning and 66.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 21:27:52,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 100.7MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 772.47ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 62.4MB in the beginning and 85.6MB in the end (delta: -23.1MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.12ms. Allocated memory is still 121.6MB. Free memory was 85.6MB in the beginning and 82.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.94ms. Allocated memory is still 121.6MB. Free memory was 82.0MB in the beginning and 79.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 558.48ms. Allocated memory is still 121.6MB. Free memory was 79.3MB in the beginning and 56.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2877.74ms. Allocated memory was 121.6MB in the beginning and 186.6MB in the end (delta: 65.0MB). Free memory was 55.5MB in the beginning and 76.2MB in the end (delta: -20.7MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * Witness Printer took 53.18ms. Allocated memory is still 186.6MB. Free memory was 76.2MB in the beginning and 66.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; VAL [t1={3:0}, t2={4:0}] [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; VAL [\result=0, t1={3:0}, t2={4:0}] [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); VAL [my_drv_init()=0, ret=0, t1={3:0}, t2={4:0}] [L1746] COND TRUE 0 ret==0 VAL [ret=0, t1={3:0}, t2={4:0}] [L1747] 0 int probe_ret; VAL [ret=0, t1={3:0}, t2={4:0}] [L1748] 0 struct my_data data; VAL [data={5:0}, ret=0, t1={3:0}, t2={4:0}] [L1749] CALL 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1708] 0 data->shared.a = 0 VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1709] 0 data->shared.b = 0 VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1710] 0 int res = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1711] COND FALSE 0 !(\read(res)) VAL [d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=6, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; VAL [arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1690] 1 struct my_data *data; VAL [arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=7, res=0, t1={3:0}, t2={4:0}] [L1716] 0 data->shared.a = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, res=0, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1719] 0 data->shared.b = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, res=0, t1={3:0}, t2={4:0}] [L1722] EXPR 0 data->shared.a [L1722] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, __mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 185 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 228 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 160 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 102 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=847occurred in iteration=3, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 233 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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! [2022-07-22 21:27:52,169 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE