./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-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 ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:15:35,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:15:35,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:15:35,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:15:35,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:15:35,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:15:35,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:15:35,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:15:35,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:15:35,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:15:35,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:15:35,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:15:35,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:15:35,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:15:35,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:15:35,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:15:35,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:15:35,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:15:35,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:15:35,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:15:35,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:15:35,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:15:35,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:15:35,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:15:35,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:15:35,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:15:35,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:15:35,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:15:35,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:15:35,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:15:35,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:15:35,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:15:35,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:15:35,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:15:35,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:15:35,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:15:35,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:15:35,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:15:35,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:15:35,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:15:35,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:15:35,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:15:35,541 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:15:35,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:15:35,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:15:35,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:15:35,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:15:35,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:15:35,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:15:35,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:15:35,544 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:15:35,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:15:35,545 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:15:35,546 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:15:35,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:15:35,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:15:35,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:15:35,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:15:35,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:15:35,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:15:35,547 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:15:35,547 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:15:35,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:15:35,547 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:15:35,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:15:35,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:15:35,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:15:35,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:15:35,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:15:35,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:15:35,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:15:35,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:15:35,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:15:35,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:15:35,549 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:15:35,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:15:35,550 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:15:35,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:15:35,550 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:15:35,550 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:15:35,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:15:35,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:15:35,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:15:35,897 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:15:35,897 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:15:35,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2023-08-31 19:15:36,945 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:15:37,329 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:15:37,329 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2023-08-31 19:15:37,351 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1cc086be/7aa50940b72a401db815b049364fbd91/FLAGc1d4d5178 [2023-08-31 19:15:37,374 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1cc086be/7aa50940b72a401db815b049364fbd91 [2023-08-31 19:15:37,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:15:37,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:15:37,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:15:37,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:15:37,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:15:37,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:15:37" (1/1) ... [2023-08-31 19:15:37,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6804ac4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:37, skipping insertion in model container [2023-08-31 19:15:37,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:15:37" (1/1) ... [2023-08-31 19:15:37,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:15:37,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:15:38,148 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i[63494,63507] [2023-08-31 19:15:38,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:15:38,198 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:15:38,288 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i[63494,63507] [2023-08-31 19:15:38,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:15:38,403 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:15:38,403 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:15:38,409 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:15:38,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:38 WrapperNode [2023-08-31 19:15:38,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:15:38,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:15:38,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:15:38,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:15:38,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:38" (1/1) ... [2023-08-31 19:15:38,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:38" (1/1) ... [2023-08-31 19:15:38,799 INFO L138 Inliner]: procedures = 397, calls = 214, calls flagged for inlining = 52, calls inlined = 211, statements flattened = 7567 [2023-08-31 19:15:38,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:15:38,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:15:38,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:15:38,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:15:38,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:38" (1/1) ... [2023-08-31 19:15:38,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:38" (1/1) ... [2023-08-31 19:15:38,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:38" (1/1) ... [2023-08-31 19:15:38,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:38" (1/1) ... [2023-08-31 19:15:39,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:38" (1/1) ... [2023-08-31 19:15:39,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:38" (1/1) ... [2023-08-31 19:15:39,399 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:38" (1/1) ... [2023-08-31 19:15:39,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:38" (1/1) ... [2023-08-31 19:15:39,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:15:39,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:15:39,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:15:39,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:15:39,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:38" (1/1) ... [2023-08-31 19:15:39,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:15:39,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:15:39,501 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) [2023-08-31 19:15:39,525 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 [2023-08-31 19:15:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 19:15:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:15:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 19:15:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:15:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:15:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 19:15:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2023-08-31 19:15:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2023-08-31 19:15:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2023-08-31 19:15:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2023-08-31 19:15:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2023-08-31 19:15:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2023-08-31 19:15:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:15:39,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:15:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:15:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-31 19:15:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-31 19:15:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:15:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2023-08-31 19:15:39,542 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2023-08-31 19:15:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2023-08-31 19:15:39,542 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2023-08-31 19:15:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2023-08-31 19:15:39,543 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2023-08-31 19:15:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2023-08-31 19:15:39,544 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2023-08-31 19:15:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:15:39,549 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:15:40,086 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:15:40,088 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:15:45,991 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:15:52,419 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:15:52,420 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:15:52,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:15:52 BoogieIcfgContainer [2023-08-31 19:15:52,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:15:52,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:15:52,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:15:52,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:15:52,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:15:37" (1/3) ... [2023-08-31 19:15:52,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d90ec8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:15:52, skipping insertion in model container [2023-08-31 19:15:52,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:15:38" (2/3) ... [2023-08-31 19:15:52,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d90ec8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:15:52, skipping insertion in model container [2023-08-31 19:15:52,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:15:52" (3/3) ... [2023-08-31 19:15:52,436 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2023-08-31 19:15:52,445 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:15:52,453 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:15:52,454 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 621 error locations. [2023-08-31 19:15:52,454 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:15:54,645 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 19:15:54,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 4377 places, 4502 transitions, 9039 flow [2023-08-31 19:16:02,588 INFO L130 PetriNetUnfolder]: 147/4495 cut-off events. [2023-08-31 19:16:02,588 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:16:03,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4517 conditions, 4495 events. 147/4495 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 34311 event pairs, 0 based on Foata normal form. 0/3727 useless extension candidates. Maximal degree in co-relation 4435. Up to 6 conditions per place. [2023-08-31 19:16:03,007 INFO L82 GeneralOperation]: Start removeDead. Operand has 4377 places, 4502 transitions, 9039 flow [2023-08-31 19:16:03,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 4370 places, 4495 transitions, 9011 flow [2023-08-31 19:16:03,443 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:16:03,451 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 4370 places, 4495 transitions, 9011 flow [2023-08-31 19:16:03,453 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 4370 places, 4495 transitions, 9011 flow [2023-08-31 19:16:03,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 4370 places, 4495 transitions, 9011 flow [2023-08-31 19:16:10,326 INFO L130 PetriNetUnfolder]: 147/4495 cut-off events. [2023-08-31 19:16:10,327 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:16:10,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4517 conditions, 4495 events. 147/4495 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 34292 event pairs, 0 based on Foata normal form. 0/3727 useless extension candidates. Maximal degree in co-relation 4435. Up to 6 conditions per place. [2023-08-31 19:16:13,659 INFO L119 LiptonReduction]: Number of co-enabled transitions 16676436 [2023-08-31 19:18:37,680 WARN L222 SmtUtils]: Spent 2.33m on a formula simplification. DAG size of input: 218 DAG size of output: 203 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 19:19:52,829 WARN L222 SmtUtils]: Spent 1.25m on a formula simplification that was a NOOP. DAG size: 203 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 19:22:40,841 WARN L222 SmtUtils]: Spent 2.80m on a formula simplification. DAG size of input: 239 DAG size of output: 210 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 19:24:03,679 WARN L222 SmtUtils]: Spent 1.38m on a formula simplification that was a NOOP. DAG size: 210 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 19:26:21,290 WARN L222 SmtUtils]: Spent 2.22m on a formula simplification. DAG size of input: 235 DAG size of output: 206 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 19:27:32,278 WARN L222 SmtUtils]: Spent 1.18m on a formula simplification that was a NOOP. DAG size: 206 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Killed by 15