./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations DEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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-ext/26_stack_cas_longest-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c0827ac193c1e2b03d5ccf1e60b62c7d6ff1b4feade2c409a6c7ca2cebf9412 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations DEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 12:17:44,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:17:44,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:17:44,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:17:44,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:17:44,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:17:44,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:17:44,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:17:44,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:17:44,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:17:44,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:17:44,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:17:44,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:17:44,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:17:44,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:17:44,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:17:44,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:17:44,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:17:44,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:17:44,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:17:44,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:17:44,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:17:44,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:17:44,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:17:44,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:17:44,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:17:44,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:17:44,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:17:44,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:17:44,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:17:44,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:17:44,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:17:44,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:17:44,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:17:44,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:17:44,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:17:44,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:17:44,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:17:44,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:17:44,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:17:44,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:17:44,691 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 12:17:44,723 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:17:44,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:17:44,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:17:44,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:17:44,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:17:44,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:17:44,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:17:44,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:17:44,726 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:17:44,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:17:44,727 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:17:44,727 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:17:44,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 12:17:44,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:17:44,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:17:44,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:17:44,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:17:44,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:17:44,729 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:17:44,729 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:17:44,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:17:44,729 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:17:44,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:17:44,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:17:44,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:17:44,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:17:44,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:17:44,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:17:44,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:17:44,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:17:44,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 12:17:44,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 12:17:44,732 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:17:44,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:17:44,732 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:17:44,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:17:44,732 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:17:44,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c0827ac193c1e2b03d5ccf1e60b62c7d6ff1b4feade2c409a6c7ca2cebf9412 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> DEFORE [2023-08-30 12:17:45,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:17:45,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:17:45,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:17:45,098 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:17:45,098 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:17:45,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i [2023-08-30 12:17:46,306 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:17:46,594 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:17:46,594 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i [2023-08-30 12:17:46,604 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d2419475/cad4b921d9d14f99b0132c1b8fe2be32/FLAG0dcd715a7 [2023-08-30 12:17:46,620 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d2419475/cad4b921d9d14f99b0132c1b8fe2be32 [2023-08-30 12:17:46,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:17:46,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:17:46,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:17:46,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:17:46,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:17:46,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:17:46" (1/1) ... [2023-08-30 12:17:46,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c13ba42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:46, skipping insertion in model container [2023-08-30 12:17:46,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:17:46" (1/1) ... [2023-08-30 12:17:46,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:17:46,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 12:17:46,923 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-ext/26_stack_cas_longest-1.i[31167,31180] [2023-08-30 12:17:46,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:17:46,952 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 12:17:47,009 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-ext/26_stack_cas_longest-1.i[31167,31180] [2023-08-30 12:17:47,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:17:47,042 INFO L208 MainTranslator]: Completed translation [2023-08-30 12:17:47,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:47 WrapperNode [2023-08-30 12:17:47,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 12:17:47,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 12:17:47,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 12:17:47,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 12:17:47,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:47" (1/1) ... [2023-08-30 12:17:47,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:47" (1/1) ... [2023-08-30 12:17:47,111 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 198 [2023-08-30 12:17:47,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 12:17:47,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 12:17:47,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 12:17:47,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 12:17:47,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:47" (1/1) ... [2023-08-30 12:17:47,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:47" (1/1) ... [2023-08-30 12:17:47,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:47" (1/1) ... [2023-08-30 12:17:47,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:47" (1/1) ... [2023-08-30 12:17:47,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:47" (1/1) ... [2023-08-30 12:17:47,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:47" (1/1) ... [2023-08-30 12:17:47,165 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:47" (1/1) ... [2023-08-30 12:17:47,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:47" (1/1) ... [2023-08-30 12:17:47,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 12:17:47,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 12:17:47,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 12:17:47,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 12:17:47,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:47" (1/1) ... [2023-08-30 12:17:47,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:17:47,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:17:47,206 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) [2023-08-30 12:17:47,217 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 [2023-08-30 12:17:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 12:17:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-30 12:17:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-30 12:17:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 12:17:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 12:17:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 12:17:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 12:17:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 12:17:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 12:17:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 12:17:47,243 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 12:17:47,400 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 12:17:47,402 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 12:17:47,784 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 12:17:47,937 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 12:17:47,937 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-30 12:17:47,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:17:47 BoogieIcfgContainer [2023-08-30 12:17:47,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 12:17:47,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 12:17:47,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 12:17:47,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 12:17:47,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:17:46" (1/3) ... [2023-08-30 12:17:47,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635ac386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:17:47, skipping insertion in model container [2023-08-30 12:17:47,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:47" (2/3) ... [2023-08-30 12:17:47,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635ac386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:17:47, skipping insertion in model container [2023-08-30 12:17:47,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:17:47" (3/3) ... [2023-08-30 12:17:47,947 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-1.i [2023-08-30 12:17:47,955 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 12:17:47,964 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 12:17:47,964 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-30 12:17:47,964 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 12:17:48,043 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 12:17:48,048 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE at java.base/java.lang.Enum.valueOf(Enum.java:240) at de.uni_freiburg.informatik.ultimate.core.preferences.RcpPreferenceProvider.getEnum(RcpPreferenceProvider.java:117) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TAPreferences.insufficientThreadErrorsVsProgramErrors(TAPreferences.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.partitionErrorLocations(TraceAbstractionStarter.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-08-30 12:17:48,054 INFO L158 Benchmark]: Toolchain (without parser) took 1429.20ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 45.8MB in the beginning and 42.3MB in the end (delta: 3.5MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2023-08-30 12:17:48,055 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 12:17:48,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.35ms. Allocated memory is still 69.2MB. Free memory was 45.6MB in the beginning and 42.1MB in the end (delta: 3.6MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2023-08-30 12:17:48,056 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.34ms. Allocated memory is still 69.2MB. Free memory was 42.1MB in the beginning and 39.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:17:48,057 INFO L158 Benchmark]: Boogie Preprocessor took 60.56ms. Allocated memory is still 69.2MB. Free memory was 39.7MB in the beginning and 37.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:17:48,058 INFO L158 Benchmark]: RCFGBuilder took 765.74ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 37.6MB in the beginning and 54.9MB in the end (delta: -17.3MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2023-08-30 12:17:48,058 INFO L158 Benchmark]: TraceAbstraction took 111.13ms. Allocated memory is still 83.9MB. Free memory was 54.4MB in the beginning and 42.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 12:17:48,066 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.35ms. Allocated memory is still 69.2MB. Free memory was 45.6MB in the beginning and 42.1MB in the end (delta: 3.6MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.34ms. Allocated memory is still 69.2MB. Free memory was 42.1MB in the beginning and 39.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.56ms. Allocated memory is still 69.2MB. Free memory was 39.7MB in the beginning and 37.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 765.74ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 37.6MB in the beginning and 54.9MB in the end (delta: -17.3MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * TraceAbstraction took 111.13ms. Allocated memory is still 83.9MB. Free memory was 54.4MB in the beginning and 42.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE: java.base/java.lang.Enum.valueOf(Enum.java:240) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-08-30 12:17:48,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-ext/26_stack_cas_longest-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c0827ac193c1e2b03d5ccf1e60b62c7d6ff1b4feade2c409a6c7ca2cebf9412 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations DEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 12:17:49,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:17:49,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:17:49,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:17:49,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:17:49,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:17:49,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:17:49,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:17:49,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:17:49,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:17:49,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:17:49,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:17:49,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:17:49,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:17:49,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:17:50,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:17:50,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:17:50,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:17:50,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:17:50,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:17:50,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:17:50,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:17:50,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:17:50,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:17:50,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:17:50,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:17:50,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:17:50,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:17:50,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:17:50,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:17:50,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:17:50,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:17:50,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:17:50,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:17:50,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:17:50,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:17:50,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:17:50,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:17:50,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:17:50,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:17:50,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:17:50,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-08-30 12:17:50,074 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:17:50,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:17:50,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:17:50,076 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:17:50,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:17:50,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:17:50,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:17:50,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:17:50,078 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:17:50,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:17:50,079 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:17:50,079 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:17:50,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:17:50,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:17:50,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:17:50,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:17:50,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:17:50,080 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 12:17:50,080 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 12:17:50,080 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:17:50,080 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 12:17:50,081 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:17:50,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:17:50,081 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:17:50,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:17:50,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:17:50,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:17:50,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:17:50,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:17:50,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:17:50,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:17:50,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:17:50,083 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 12:17:50,083 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 12:17:50,083 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:17:50,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:17:50,083 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:17:50,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:17:50,084 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 12:17:50,084 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:17:50,084 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c0827ac193c1e2b03d5ccf1e60b62c7d6ff1b4feade2c409a6c7ca2cebf9412 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> DEFORE [2023-08-30 12:17:50,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:17:50,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:17:50,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:17:50,405 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:17:50,406 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:17:50,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i [2023-08-30 12:17:51,647 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:17:51,898 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:17:51,902 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i [2023-08-30 12:17:51,917 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e67b7d84/9e2069093e494a94bf96ac3c6941a6cc/FLAG40a0f1211 [2023-08-30 12:17:51,930 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e67b7d84/9e2069093e494a94bf96ac3c6941a6cc [2023-08-30 12:17:51,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:17:51,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:17:51,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:17:51,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:17:51,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:17:51,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:17:51" (1/1) ... [2023-08-30 12:17:51,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:51, skipping insertion in model container [2023-08-30 12:17:51,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:17:51" (1/1) ... [2023-08-30 12:17:51,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:17:51,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 12:17:52,319 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-ext/26_stack_cas_longest-1.i[31167,31180] [2023-08-30 12:17:52,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:17:52,354 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 12:17:52,413 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-ext/26_stack_cas_longest-1.i[31167,31180] [2023-08-30 12:17:52,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:17:52,463 INFO L208 MainTranslator]: Completed translation [2023-08-30 12:17:52,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:52 WrapperNode [2023-08-30 12:17:52,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 12:17:52,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 12:17:52,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 12:17:52,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 12:17:52,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:52" (1/1) ... [2023-08-30 12:17:52,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:52" (1/1) ... [2023-08-30 12:17:52,520 INFO L138 Inliner]: procedures = 181, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 195 [2023-08-30 12:17:52,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 12:17:52,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 12:17:52,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 12:17:52,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 12:17:52,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:52" (1/1) ... [2023-08-30 12:17:52,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:52" (1/1) ... [2023-08-30 12:17:52,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:52" (1/1) ... [2023-08-30 12:17:52,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:52" (1/1) ... [2023-08-30 12:17:52,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:52" (1/1) ... [2023-08-30 12:17:52,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:52" (1/1) ... [2023-08-30 12:17:52,562 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:52" (1/1) ... [2023-08-30 12:17:52,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:52" (1/1) ... [2023-08-30 12:17:52,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 12:17:52,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 12:17:52,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 12:17:52,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 12:17:52,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:52" (1/1) ... [2023-08-30 12:17:52,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:17:52,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:17:52,606 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) [2023-08-30 12:17:52,630 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 [2023-08-30 12:17:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-30 12:17:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-30 12:17:52,647 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-30 12:17:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 12:17:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 12:17:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 12:17:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 12:17:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-30 12:17:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-30 12:17:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 12:17:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 12:17:52,650 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 12:17:52,818 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 12:17:52,819 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 12:17:53,228 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 12:17:53,349 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 12:17:53,350 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-30 12:17:53,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:17:53 BoogieIcfgContainer [2023-08-30 12:17:53,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 12:17:53,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 12:17:53,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 12:17:53,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 12:17:53,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:17:51" (1/3) ... [2023-08-30 12:17:53,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e20684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:17:53, skipping insertion in model container [2023-08-30 12:17:53,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:17:52" (2/3) ... [2023-08-30 12:17:53,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e20684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:17:53, skipping insertion in model container [2023-08-30 12:17:53,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:17:53" (3/3) ... [2023-08-30 12:17:53,359 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-1.i [2023-08-30 12:17:53,366 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 12:17:53,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 12:17:53,375 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-30 12:17:53,375 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 12:17:53,436 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 12:17:53,441 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE at java.base/java.lang.Enum.valueOf(Enum.java:240) at de.uni_freiburg.informatik.ultimate.core.preferences.RcpPreferenceProvider.getEnum(RcpPreferenceProvider.java:117) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TAPreferences.insufficientThreadErrorsVsProgramErrors(TAPreferences.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.partitionErrorLocations(TraceAbstractionStarter.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-08-30 12:17:53,445 INFO L158 Benchmark]: Toolchain (without parser) took 1510.67ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 37.9MB in the beginning and 48.2MB in the end (delta: -10.4MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2023-08-30 12:17:53,445 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 12:17:53,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.07ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 37.7MB in the beginning and 56.6MB in the end (delta: -18.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 12:17:53,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.57ms. Allocated memory is still 90.2MB. Free memory was 56.6MB in the beginning and 53.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 12:17:53,446 INFO L158 Benchmark]: Boogie Preprocessor took 46.57ms. Allocated memory is still 90.2MB. Free memory was 53.8MB in the beginning and 51.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:17:53,447 INFO L158 Benchmark]: RCFGBuilder took 783.55ms. Allocated memory is still 90.2MB. Free memory was 51.7MB in the beginning and 63.9MB in the end (delta: -12.2MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-08-30 12:17:53,447 INFO L158 Benchmark]: TraceAbstraction took 90.11ms. Allocated memory is still 90.2MB. Free memory was 63.3MB in the beginning and 48.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 12:17:53,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.07ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 37.7MB in the beginning and 56.6MB in the end (delta: -18.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.57ms. Allocated memory is still 90.2MB. Free memory was 56.6MB in the beginning and 53.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.57ms. Allocated memory is still 90.2MB. Free memory was 53.8MB in the beginning and 51.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 783.55ms. Allocated memory is still 90.2MB. Free memory was 51.7MB in the beginning and 63.9MB in the end (delta: -12.2MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 90.11ms. Allocated memory is still 90.2MB. Free memory was 63.3MB in the beginning and 48.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE: java.base/java.lang.Enum.valueOf(Enum.java:240) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-08-30 12:17:53,466 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 Result: ERROR: ExceptionOrErrorResult: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE