./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10dd65d363f3d099295f575f6743961c3e6b480300728ce34fc95b90972dc72c --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:25:12,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:25:12,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:25:12,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:25:12,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:25:12,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:25:12,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:25:12,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:25:12,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:25:12,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:25:12,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:25:12,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:25:12,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:25:12,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:25:12,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:25:12,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:25:12,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:25:12,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:25:12,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:25:12,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:25:12,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:25:12,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:25:12,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:25:12,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:25:12,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:25:12,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:25:12,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:25:12,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:25:12,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:25:12,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:25:12,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:25:12,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:25:12,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:25:12,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:25:12,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:25:12,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:25:12,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:25:12,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:25:12,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:25:12,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:25:12,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:25:12,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 12:25:12,479 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:25:12,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:25:12,480 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:25:12,480 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:25:12,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:25:12,481 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:25:12,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:25:12,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:25:12,481 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:25:12,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:25:12,482 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:25:12,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:25:12,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:25:12,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:25:12,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:25:12,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:25:12,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:25:12,483 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:25:12,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:25:12,483 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:25:12,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:25:12,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:25:12,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:25:12,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:25:12,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:25:12,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:25:12,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:25:12,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:25:12,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:25:12,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:25:12,486 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:25:12,486 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:25:12,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:25:12,486 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:25:12,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10dd65d363f3d099295f575f6743961c3e6b480300728ce34fc95b90972dc72c [2021-12-15 12:25:12,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:25:12,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:25:12,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:25:12,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:25:12,722 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:25:12,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-12-15 12:25:12,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40db2982f/5a2b64661fdf4fbcb70820bffb52fa3a/FLAGdf58a69ce [2021-12-15 12:25:13,222 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:25:13,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-12-15 12:25:13,234 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40db2982f/5a2b64661fdf4fbcb70820bffb52fa3a/FLAGdf58a69ce [2021-12-15 12:25:13,246 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40db2982f/5a2b64661fdf4fbcb70820bffb52fa3a [2021-12-15 12:25:13,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:25:13,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:25:13,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:25:13,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:25:13,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:25:13,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:25:13" (1/1) ... [2021-12-15 12:25:13,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6dfc58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:13, skipping insertion in model container [2021-12-15 12:25:13,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:25:13" (1/1) ... [2021-12-15 12:25:13,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:25:13,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:25:13,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2021-12-15 12:25:13,575 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:25:13,581 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:25:13,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2021-12-15 12:25:13,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:25:13,650 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:25:13,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:13 WrapperNode [2021-12-15 12:25:13,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:25:13,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:25:13,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:25:13,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:25:13,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:13" (1/1) ... [2021-12-15 12:25:13,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:13" (1/1) ... [2021-12-15 12:25:13,689 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2021-12-15 12:25:13,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:25:13,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:25:13,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:25:13,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:25:13,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:13" (1/1) ... [2021-12-15 12:25:13,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:13" (1/1) ... [2021-12-15 12:25:13,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:13" (1/1) ... [2021-12-15 12:25:13,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:13" (1/1) ... [2021-12-15 12:25:13,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:13" (1/1) ... [2021-12-15 12:25:13,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:13" (1/1) ... [2021-12-15 12:25:13,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:13" (1/1) ... [2021-12-15 12:25:13,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:25:13,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:25:13,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:25:13,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:25:13,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:13" (1/1) ... [2021-12-15 12:25:13,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:25:13,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:25:13,746 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) [2021-12-15 12:25:13,764 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 [2021-12-15 12:25:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:25:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:25:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:25:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:25:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:25:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-15 12:25:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-15 12:25:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-15 12:25:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-15 12:25:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-12-15 12:25:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-12-15 12:25:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:25:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:25:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:25:13,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:25:13,778 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-15 12:25:13,875 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:25:13,876 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:25:13,998 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:25:14,002 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:25:14,003 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 12:25:14,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:25:14 BoogieIcfgContainer [2021-12-15 12:25:14,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:25:14,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:25:14,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:25:14,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:25:14,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:25:13" (1/3) ... [2021-12-15 12:25:14,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76994297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:25:14, skipping insertion in model container [2021-12-15 12:25:14,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:13" (2/3) ... [2021-12-15 12:25:14,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76994297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:25:14, skipping insertion in model container [2021-12-15 12:25:14,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:25:14" (3/3) ... [2021-12-15 12:25:14,009 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-12-15 12:25:14,013 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-15 12:25:14,013 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:25:14,013 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:25:14,013 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-15 12:25:14,033 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,033 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,034 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,034 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,034 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,034 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,034 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,034 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,035 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,035 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,035 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,035 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,035 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,035 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,036 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,036 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,036 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,036 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,036 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,036 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,037 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,037 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,037 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,037 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,037 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,037 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,038 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,038 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,038 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,038 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,038 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,038 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,039 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,039 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,039 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,039 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:14,040 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.connectThreadInstances(ThreadInstanceAdder.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:514) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2021-12-15 12:25:14,043 INFO L158 Benchmark]: Toolchain (without parser) took 792.78ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 69.5MB in the beginning and 69.3MB in the end (delta: 173.2kB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2021-12-15 12:25:14,043 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory was 56.4MB in the beginning and 56.4MB in the end (delta: 41.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:25:14,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.35ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 69.2MB in the beginning and 89.8MB in the end (delta: -20.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 12:25:14,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.98ms. Allocated memory is still 123.7MB. Free memory was 89.8MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:25:14,046 INFO L158 Benchmark]: Boogie Preprocessor took 24.43ms. Allocated memory is still 123.7MB. Free memory was 87.7MB in the beginning and 86.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:25:14,046 INFO L158 Benchmark]: RCFGBuilder took 288.93ms. Allocated memory is still 123.7MB. Free memory was 86.1MB in the beginning and 74.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 12:25:14,047 INFO L158 Benchmark]: TraceAbstraction took 36.55ms. Allocated memory is still 123.7MB. Free memory was 73.9MB in the beginning and 69.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 12:25:14,053 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory was 56.4MB in the beginning and 56.4MB in the end (delta: 41.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.35ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 69.2MB in the beginning and 89.8MB in the end (delta: -20.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.98ms. Allocated memory is still 123.7MB. Free memory was 89.8MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.43ms. Allocated memory is still 123.7MB. Free memory was 87.7MB in the beginning and 86.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 288.93ms. Allocated memory is still 123.7MB. Free memory was 86.1MB in the beginning and 74.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 36.55ms. Allocated memory is still 123.7MB. Free memory was 73.9MB in the beginning and 69.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:25:14,084 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 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 ../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10dd65d363f3d099295f575f6743961c3e6b480300728ce34fc95b90972dc72c --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:25:15,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:25:15,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:25:15,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:25:15,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:25:15,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:25:15,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:25:15,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:25:15,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:25:15,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:25:15,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:25:15,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:25:15,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:25:15,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:25:15,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:25:15,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:25:15,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:25:15,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:25:15,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:25:15,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:25:15,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:25:15,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:25:15,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:25:15,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:25:15,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:25:15,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:25:15,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:25:15,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:25:15,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:25:15,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:25:15,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:25:15,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:25:15,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:25:15,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:25:15,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:25:15,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:25:15,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:25:15,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:25:15,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:25:15,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:25:15,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:25:15,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 12:25:15,860 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:25:15,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:25:15,864 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:25:15,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:25:15,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:25:15,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:25:15,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:25:15,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:25:15,866 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:25:15,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:25:15,867 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:25:15,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:25:15,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:25:15,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:25:15,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:25:15,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:25:15,868 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:25:15,868 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:25:15,868 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:25:15,868 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:25:15,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:25:15,869 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:25:15,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:25:15,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:25:15,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:25:15,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:25:15,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:25:15,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:25:15,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:25:15,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:25:15,870 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:25:15,870 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:25:15,871 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:25:15,871 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:25:15,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:25:15,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:25:15,871 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:25:15,871 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10dd65d363f3d099295f575f6743961c3e6b480300728ce34fc95b90972dc72c [2021-12-15 12:25:16,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:25:16,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:25:16,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:25:16,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:25:16,114 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:25:16,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-12-15 12:25:16,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9c5b7a83/a93794de8eb4413fb1aa67fa427108dd/FLAG2ecd71dcd [2021-12-15 12:25:16,608 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:25:16,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-12-15 12:25:16,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9c5b7a83/a93794de8eb4413fb1aa67fa427108dd/FLAG2ecd71dcd [2021-12-15 12:25:16,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9c5b7a83/a93794de8eb4413fb1aa67fa427108dd [2021-12-15 12:25:16,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:25:16,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:25:16,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:25:16,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:25:16,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:25:16,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:25:16" (1/1) ... [2021-12-15 12:25:16,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f96a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:16, skipping insertion in model container [2021-12-15 12:25:16,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:25:16" (1/1) ... [2021-12-15 12:25:16,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:25:16,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:25:16,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2021-12-15 12:25:17,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:25:17,013 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:25:17,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2021-12-15 12:25:17,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:25:17,093 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:25:17,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:17 WrapperNode [2021-12-15 12:25:17,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:25:17,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:25:17,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:25:17,095 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:25:17,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:17" (1/1) ... [2021-12-15 12:25:17,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:17" (1/1) ... [2021-12-15 12:25:17,145 INFO L137 Inliner]: procedures = 179, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2021-12-15 12:25:17,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:25:17,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:25:17,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:25:17,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:25:17,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:17" (1/1) ... [2021-12-15 12:25:17,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:17" (1/1) ... [2021-12-15 12:25:17,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:17" (1/1) ... [2021-12-15 12:25:17,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:17" (1/1) ... [2021-12-15 12:25:17,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:17" (1/1) ... [2021-12-15 12:25:17,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:17" (1/1) ... [2021-12-15 12:25:17,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:17" (1/1) ... [2021-12-15 12:25:17,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:25:17,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:25:17,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:25:17,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:25:17,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:17" (1/1) ... [2021-12-15 12:25:17,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:25:17,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:25:17,213 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) [2021-12-15 12:25:17,231 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 [2021-12-15 12:25:17,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:25:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:25:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:25:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:25:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 12:25:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:25:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-15 12:25:17,244 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-15 12:25:17,244 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-15 12:25:17,244 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-15 12:25:17,244 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-12-15 12:25:17,244 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-12-15 12:25:17,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:25:17,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:25:17,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:25:17,246 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-15 12:25:17,358 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:25:17,360 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:25:17,485 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:25:17,490 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:25:17,490 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 12:25:17,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:25:17 BoogieIcfgContainer [2021-12-15 12:25:17,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:25:17,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:25:17,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:25:17,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:25:17,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:25:16" (1/3) ... [2021-12-15 12:25:17,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72aa6e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:25:17, skipping insertion in model container [2021-12-15 12:25:17,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:17" (2/3) ... [2021-12-15 12:25:17,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72aa6e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:25:17, skipping insertion in model container [2021-12-15 12:25:17,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:25:17" (3/3) ... [2021-12-15 12:25:17,497 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-12-15 12:25:17,501 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-15 12:25:17,501 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:25:17,501 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:25:17,501 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-15 12:25:17,529 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,529 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,529 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,529 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,529 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,530 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,530 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,530 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,530 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,530 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,530 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,530 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,531 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,531 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,531 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,531 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,531 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,531 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,531 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,531 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,532 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,532 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,532 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,532 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,532 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,532 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,532 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,532 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,532 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,533 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,533 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,533 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,533 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,533 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,533 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,533 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:17,534 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.connectThreadInstances(ThreadInstanceAdder.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:514) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2021-12-15 12:25:17,537 INFO L158 Benchmark]: Toolchain (without parser) took 895.40ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 39.8MB in the beginning and 51.8MB in the end (delta: -11.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-12-15 12:25:17,538 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:25:17,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.44ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 32.9MB in the end (delta: 6.8MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2021-12-15 12:25:17,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.04ms. Allocated memory is still 60.8MB. Free memory was 32.9MB in the beginning and 30.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:25:17,539 INFO L158 Benchmark]: Boogie Preprocessor took 41.34ms. Allocated memory is still 60.8MB. Free memory was 30.8MB in the beginning and 28.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:25:17,540 INFO L158 Benchmark]: RCFGBuilder took 303.74ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 28.9MB in the beginning and 56.7MB in the end (delta: -27.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 12:25:17,540 INFO L158 Benchmark]: TraceAbstraction took 43.25ms. Allocated memory is still 81.8MB. Free memory was 56.3MB in the beginning and 51.8MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 12:25:17,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.44ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 32.9MB in the end (delta: 6.8MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.04ms. Allocated memory is still 60.8MB. Free memory was 32.9MB in the beginning and 30.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.34ms. Allocated memory is still 60.8MB. Free memory was 30.8MB in the beginning and 28.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 303.74ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 28.9MB in the beginning and 56.7MB in the end (delta: -27.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 43.25ms. Allocated memory is still 81.8MB. Free memory was 56.3MB in the beginning and 51.8MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:25:17,569 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: UnsupportedOperationException: Set is immutable