./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-time-symm.wvr.c --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/weaver/chl-time-symm.wvr.c -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 72bbcf79bf9ab9dc66dc1f84247eb131a6de5c94da8e4a071481d48ca23ad8fa --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:28:17,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:28:17,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:28:17,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:28:17,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:28:17,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:28:17,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:28:17,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:28:17,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:28:17,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:28:17,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:28:17,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:28:17,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:28:17,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:28:17,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:28:17,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:28:17,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:28:17,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:28:17,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:28:17,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:28:17,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:28:17,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:28:17,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:28:17,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:28:17,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:28:17,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:28:17,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:28:17,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:28:17,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:28:17,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:28:17,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:28:17,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:28:17,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:28:17,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:28:17,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:28:17,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:28:17,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:28:17,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:28:17,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:28:17,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:28:17,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:28:17,462 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 12:28:17,488 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:28:17,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:28:17,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:28:17,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:28:17,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:28:17,490 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:28:17,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:28:17,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:28:17,491 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:28:17,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:28:17,492 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:28:17,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:28:17,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:28:17,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:28:17,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:28:17,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:28:17,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:28:17,493 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:28:17,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:28:17,494 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:28:17,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:28:17,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:28:17,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:28:17,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:28:17,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:28:17,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:28:17,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:28:17,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:28:17,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:28:17,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:28:17,496 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:28:17,496 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:28:17,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:28:17,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:28:17,496 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72bbcf79bf9ab9dc66dc1f84247eb131a6de5c94da8e4a071481d48ca23ad8fa [2021-12-15 12:28:17,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:28:17,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:28:17,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:28:17,781 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:28:17,781 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:28:17,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-time-symm.wvr.c [2021-12-15 12:28:17,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c2aa18f/ba97c177da5e4914b4229a3c0fe38ae2/FLAG70e492fc4 [2021-12-15 12:28:18,247 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:28:18,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-symm.wvr.c [2021-12-15 12:28:18,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c2aa18f/ba97c177da5e4914b4229a3c0fe38ae2/FLAG70e492fc4 [2021-12-15 12:28:18,638 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c2aa18f/ba97c177da5e4914b4229a3c0fe38ae2 [2021-12-15 12:28:18,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:28:18,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:28:18,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:28:18,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:28:18,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:28:18,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:28:18" (1/1) ... [2021-12-15 12:28:18,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5f4fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:18, skipping insertion in model container [2021-12-15 12:28:18,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:28:18" (1/1) ... [2021-12-15 12:28:18,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:28:18,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:28:18,899 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/weaver/chl-time-symm.wvr.c[2494,2507] [2021-12-15 12:28:18,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:28:18,919 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:28:18,954 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/weaver/chl-time-symm.wvr.c[2494,2507] [2021-12-15 12:28:18,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:28:18,969 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:28:18,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:18 WrapperNode [2021-12-15 12:28:18,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:28:18,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:28:18,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:28:18,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:28:18,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:18" (1/1) ... [2021-12-15 12:28:18,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:18" (1/1) ... [2021-12-15 12:28:19,023 INFO L137 Inliner]: procedures = 22, calls = 29, calls flagged for inlining = 9, calls inlined = 15, statements flattened = 164 [2021-12-15 12:28:19,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:28:19,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:28:19,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:28:19,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:28:19,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:18" (1/1) ... [2021-12-15 12:28:19,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:18" (1/1) ... [2021-12-15 12:28:19,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:18" (1/1) ... [2021-12-15 12:28:19,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:18" (1/1) ... [2021-12-15 12:28:19,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:18" (1/1) ... [2021-12-15 12:28:19,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:18" (1/1) ... [2021-12-15 12:28:19,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:18" (1/1) ... [2021-12-15 12:28:19,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:28:19,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:28:19,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:28:19,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:28:19,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:18" (1/1) ... [2021-12-15 12:28:19,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:28:19,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:28:19,117 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 12:28:19,144 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 12:28:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:28:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-15 12:28:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-15 12:28:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-15 12:28:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-15 12:28:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:28:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:28:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:28:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:28:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:28:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:28:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:28:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 12:28:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:28:19,163 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 12:28:19,252 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:28:19,254 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:28:19,506 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:28:19,607 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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 12:28:19,612 INFO L158 Benchmark]: Toolchain (without parser) took 967.36ms. Allocated memory is still 96.5MB. Free memory was 67.3MB in the beginning and 73.1MB in the end (delta: -5.8MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2021-12-15 12:28:19,615 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 75.5MB. Free memory was 40.3MB in the beginning and 40.2MB in the end (delta: 47.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:28:19,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.78ms. Allocated memory is still 96.5MB. Free memory was 67.3MB in the beginning and 73.2MB in the end (delta: -5.9MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2021-12-15 12:28:19,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.55ms. Allocated memory is still 96.5MB. Free memory was 73.2MB in the beginning and 71.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:28:19,617 INFO L158 Benchmark]: Boogie Preprocessor took 46.19ms. Allocated memory is still 96.5MB. Free memory was 71.1MB in the beginning and 69.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:28:19,618 INFO L158 Benchmark]: RCFGBuilder took 538.74ms. Allocated memory is still 96.5MB. Free memory was 69.6MB in the beginning and 73.1MB in the end (delta: -3.5MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2021-12-15 12:28:19,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 75.5MB. Free memory was 40.3MB in the beginning and 40.2MB in the end (delta: 47.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.78ms. Allocated memory is still 96.5MB. Free memory was 67.3MB in the beginning and 73.2MB in the end (delta: -5.9MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.55ms. Allocated memory is still 96.5MB. Free memory was 73.2MB in the beginning and 71.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.19ms. Allocated memory is still 96.5MB. Free memory was 71.1MB in the beginning and 69.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 538.74ms. Allocated memory is still 96.5MB. Free memory was 69.6MB in the beginning and 73.1MB in the end (delta: -3.5MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:28:19,658 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/weaver/chl-time-symm.wvr.c -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 72bbcf79bf9ab9dc66dc1f84247eb131a6de5c94da8e4a071481d48ca23ad8fa --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:28:21,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:28:21,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:28:21,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:28:21,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:28:21,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:28:21,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:28:21,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:28:21,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:28:21,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:28:21,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:28:21,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:28:21,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:28:21,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:28:21,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:28:21,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:28:21,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:28:21,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:28:21,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:28:21,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:28:21,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:28:21,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:28:21,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:28:21,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:28:21,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:28:21,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:28:21,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:28:21,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:28:21,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:28:21,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:28:21,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:28:21,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:28:21,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:28:21,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:28:21,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:28:21,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:28:21,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:28:21,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:28:21,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:28:21,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:28:21,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:28:21,625 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 12:28:21,656 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:28:21,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:28:21,657 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:28:21,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:28:21,659 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:28:21,659 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:28:21,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:28:21,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:28:21,660 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:28:21,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:28:21,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:28:21,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:28:21,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:28:21,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:28:21,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:28:21,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:28:21,662 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:28:21,663 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:28:21,663 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:28:21,663 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:28:21,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:28:21,663 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:28:21,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:28:21,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:28:21,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:28:21,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:28:21,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:28:21,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:28:21,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:28:21,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:28:21,672 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:28:21,673 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:28:21,673 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:28:21,673 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:28:21,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:28:21,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:28:21,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:28:21,674 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72bbcf79bf9ab9dc66dc1f84247eb131a6de5c94da8e4a071481d48ca23ad8fa [2021-12-15 12:28:21,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:28:22,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:28:22,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:28:22,013 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:28:22,014 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:28:22,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-time-symm.wvr.c [2021-12-15 12:28:22,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e6a264c4/a8a928d4a3ca4f2a8346df7a70dfd549/FLAG22056660b [2021-12-15 12:28:22,456 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:28:22,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-symm.wvr.c [2021-12-15 12:28:22,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e6a264c4/a8a928d4a3ca4f2a8346df7a70dfd549/FLAG22056660b [2021-12-15 12:28:22,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e6a264c4/a8a928d4a3ca4f2a8346df7a70dfd549 [2021-12-15 12:28:22,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:28:22,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:28:22,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:28:22,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:28:22,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:28:22,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:28:22" (1/1) ... [2021-12-15 12:28:22,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c91d363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:22, skipping insertion in model container [2021-12-15 12:28:22,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:28:22" (1/1) ... [2021-12-15 12:28:22,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:28:22,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:28:22,701 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/weaver/chl-time-symm.wvr.c[2494,2507] [2021-12-15 12:28:22,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:28:22,737 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:28:22,775 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/weaver/chl-time-symm.wvr.c[2494,2507] [2021-12-15 12:28:22,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:28:22,793 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:28:22,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:22 WrapperNode [2021-12-15 12:28:22,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:28:22,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:28:22,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:28:22,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:28:22,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:22" (1/1) ... [2021-12-15 12:28:22,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:22" (1/1) ... [2021-12-15 12:28:22,854 INFO L137 Inliner]: procedures = 24, calls = 29, calls flagged for inlining = 9, calls inlined = 15, statements flattened = 154 [2021-12-15 12:28:22,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:28:22,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:28:22,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:28:22,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:28:22,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:22" (1/1) ... [2021-12-15 12:28:22,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:22" (1/1) ... [2021-12-15 12:28:22,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:22" (1/1) ... [2021-12-15 12:28:22,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:22" (1/1) ... [2021-12-15 12:28:22,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:22" (1/1) ... [2021-12-15 12:28:22,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:22" (1/1) ... [2021-12-15 12:28:22,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:22" (1/1) ... [2021-12-15 12:28:22,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:28:22,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:28:22,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:28:22,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:28:22,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:22" (1/1) ... [2021-12-15 12:28:22,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:28:22,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:28:22,927 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 12:28:22,956 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 12:28:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:28:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-15 12:28:22,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-15 12:28:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-15 12:28:22,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-15 12:28:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:28:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:28:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:28:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:28:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 12:28:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:28:22,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:28:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:28:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 12:28:22,972 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 12:28:23,042 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:28:23,043 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:28:23,347 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:28:23,467 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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 12:28:23,477 INFO L158 Benchmark]: Toolchain (without parser) took 992.15ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 29.3MB in the beginning and 39.7MB in the end (delta: -10.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2021-12-15 12:28:23,479 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 52.4MB. Free memory is still 34.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:28:23,480 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.73ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 29.2MB in the beginning and 47.2MB in the end (delta: -18.1MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-12-15 12:28:23,481 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.04ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 45.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:28:23,482 INFO L158 Benchmark]: Boogie Preprocessor took 37.87ms. Allocated memory is still 65.0MB. Free memory was 45.1MB in the beginning and 43.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:28:23,483 INFO L158 Benchmark]: RCFGBuilder took 581.63ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 39.7MB in the end (delta: 4.0MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2021-12-15 12:28:23,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 52.4MB. Free memory is still 34.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.73ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 29.2MB in the beginning and 47.2MB in the end (delta: -18.1MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.04ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 45.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.87ms. Allocated memory is still 65.0MB. Free memory was 45.1MB in the beginning and 43.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 581.63ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 39.7MB in the end (delta: 4.0MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:28:23,521 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