./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 AFTER --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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 01:15:31,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:15:31,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:15:31,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:15:31,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:15:31,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:15:31,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:15:31,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:15:31,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:15:31,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:15:31,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:15:31,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:15:31,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:15:31,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:15:31,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:15:31,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:15:31,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:15:31,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:15:31,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:15:31,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:15:31,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:15:31,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:15:31,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:15:31,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:15:31,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:15:31,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:15:31,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:15:31,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:15:31,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:15:31,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:15:31,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:15:31,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:15:31,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:15:31,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:15:31,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:15:31,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:15:31,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:15:31,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:15:31,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:15:31,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:15:31,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:15:31,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:15:31,724 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:15:31,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:15:31,725 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:15:31,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:15:31,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:15:31,727 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:15:31,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:15:31,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:15:31,728 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:15:31,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:15:31,729 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:15:31,729 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:15:31,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:15:31,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:15:31,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:15:31,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:15:31,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:15:31,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:15:31,731 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:15:31,731 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:15:31,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:15:31,731 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:15:31,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:15:31,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:15:31,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:15:31,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:15:31,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:15:31,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:15:31,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:15:31,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:15:31,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:15:31,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:15:31,734 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:15:31,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:15:31,735 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:15:31,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:15:31,735 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:15:31,735 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:15:32,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:15:32,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:15:32,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:15:32,077 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:15:32,078 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:15:32,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2023-08-29 01:15:33,190 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:15:33,495 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:15:33,496 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2023-08-29 01:15:33,522 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f2024bf/7ed14541c2a64212a447cbb3f768c145/FLAGfda0582a5 [2023-08-29 01:15:33,540 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f2024bf/7ed14541c2a64212a447cbb3f768c145 [2023-08-29 01:15:33,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:15:33,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:15:33,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:15:33,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:15:33,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:15:33,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:15:33" (1/1) ... [2023-08-29 01:15:33,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572b8f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:33, skipping insertion in model container [2023-08-29 01:15:33,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:15:33" (1/1) ... [2023-08-29 01:15:33,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:15:33,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:15:34,385 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] [2023-08-29 01:15:34,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:15:34,422 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:15:34,520 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] [2023-08-29 01:15:34,538 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:15:34,634 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:15:34,635 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:15:34,641 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:15:34,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:34 WrapperNode [2023-08-29 01:15:34,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:15:34,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:15:34,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:15:34,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:15:34,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:34" (1/1) ... [2023-08-29 01:15:34,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:34" (1/1) ... [2023-08-29 01:15:34,987 INFO L138 Inliner]: procedures = 397, calls = 214, calls flagged for inlining = 52, calls inlined = 211, statements flattened = 7567 [2023-08-29 01:15:34,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:15:34,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:15:34,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:15:34,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:15:35,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:34" (1/1) ... [2023-08-29 01:15:35,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:34" (1/1) ... [2023-08-29 01:15:35,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:34" (1/1) ... [2023-08-29 01:15:35,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:34" (1/1) ... [2023-08-29 01:15:35,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:34" (1/1) ... [2023-08-29 01:15:35,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:34" (1/1) ... [2023-08-29 01:15:35,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:34" (1/1) ... [2023-08-29 01:15:35,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:34" (1/1) ... [2023-08-29 01:15:35,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:15:35,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:15:35,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:15:35,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:15:35,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:34" (1/1) ... [2023-08-29 01:15:35,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:15:35,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:15:35,666 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) [2023-08-29 01:15:35,692 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 [2023-08-29 01:15:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 01:15:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:15:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 01:15:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 01:15:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:15:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 01:15:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2023-08-29 01:15:35,707 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2023-08-29 01:15:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2023-08-29 01:15:35,708 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2023-08-29 01:15:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2023-08-29 01:15:35,708 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2023-08-29 01:15:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:15:35,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:15:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:15:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 01:15:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-29 01:15:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:15:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2023-08-29 01:15:35,709 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2023-08-29 01:15:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2023-08-29 01:15:35,710 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2023-08-29 01:15:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2023-08-29 01:15:35,710 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2023-08-29 01:15:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2023-08-29 01:15:35,711 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2023-08-29 01:15:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:15:35,716 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 01:15:36,266 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:15:36,268 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:15:42,383 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:15:49,104 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:15:49,105 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 01:15:49,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:15:49 BoogieIcfgContainer [2023-08-29 01:15:49,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:15:49,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:15:49,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:15:49,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:15:49,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:15:33" (1/3) ... [2023-08-29 01:15:49,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712a4f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:15:49, skipping insertion in model container [2023-08-29 01:15:49,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:15:34" (2/3) ... [2023-08-29 01:15:49,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712a4f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:15:49, skipping insertion in model container [2023-08-29 01:15:49,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:15:49" (3/3) ... [2023-08-29 01:15:49,120 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2023-08-29 01:15:49,129 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:15:49,137 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:15:49,138 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 621 error locations. [2023-08-29 01:15:49,138 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:15:51,232 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 01:15:51,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 4377 places, 4502 transitions, 9039 flow [2023-08-29 01:15:59,928 INFO L130 PetriNetUnfolder]: 147/4495 cut-off events. [2023-08-29 01:15:59,929 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:16:00,364 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. [2023-08-29 01:16:00,364 INFO L82 GeneralOperation]: Start removeDead. Operand has 4377 places, 4502 transitions, 9039 flow [2023-08-29 01:16:00,658 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 4370 places, 4495 transitions, 9011 flow [2023-08-29 01:16:00,661 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:16:00,672 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 4370 places, 4495 transitions, 9011 flow [2023-08-29 01:16:00,674 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 4370 places, 4495 transitions, 9011 flow [2023-08-29 01:16:00,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 4370 places, 4495 transitions, 9011 flow [2023-08-29 01:16:08,797 INFO L130 PetriNetUnfolder]: 147/4495 cut-off events. [2023-08-29 01:16:08,798 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:16:09,211 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. [2023-08-29 01:16:12,308 INFO L119 LiptonReduction]: Number of co-enabled transitions 16676436 [2023-08-29 01:18:53,334 WARN L222 SmtUtils]: Spent 2.60m 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) [2023-08-29 01:20:12,121 WARN L222 SmtUtils]: Spent 1.31m 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) [2023-08-29 01:23:05,373 WARN L222 SmtUtils]: Spent 2.89m 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) [2023-08-29 01:24:30,336 WARN L222 SmtUtils]: Spent 1.42m 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) [2023-08-29 01:26:58,793 WARN L222 SmtUtils]: Spent 2.40m 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) [2023-08-29 01:28:09,441 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